** REVIEWED AND UPDATED POST 24th JULY 07**

Hi All,

I have made numerous changes to No. 1 prototype of my fully cast-aluminium inlet manifolds for the V6 3rd Gen Magnas. I hope to be evaluating it on-car during week-of sunday 9th december 2007.

What's an Inlet Manifold? Didn't know there was a first prototype? Then click here and learn-> http://www.aussiemagna.com/forums/showthread.php?t=29485&highlight=manifold

The replacement "EZ Plenum" is made of cast aluminium, with HPC being investigated as an additional cost add-on. Each manifold will be serial numbered underneath (out of view) to ensure that the item retains value as part of an exclusive production run.

The #1 plated EZ Plenum will be donated to AMC to be raffled for club fundraising and drawn at a public AMC event. Details to be finalised.

Ok some more info that I can make available:

* Will fit the 3.5L V6 and the 24valve 3L V6 motors in the 3rd Gens.
* Strut braces will continue to fit with the manifold in place
* The item will look OEM to any non-magna expert
* All oem ancillary brackets will be supported or new ones supplied, including the plastic engine cover.
* EGR function is NOT supported. If you really want it, you're most welcome to modify it accordingly.
* WILL function safely and happily with STOCK ECU!!
* Does NOT require ANY additional mods to the car. While additional mods such as cai, flowed tb, fpr, extractors, sports exhaust, thermo spacers, tb hot water bypass etc etc, aren't required for the manifold to produce powerful results, they will certainly enhance the manifold's contribution to power and fuel econ.

YES - my initial prototype improved fuel economy just over 1L/100km in my AWD as it improved engine efficiency. That was WITHOUT extractors.


"But I own a 4cyl or a 2nd Gen"

Great, if it has a plenum and runners, I will be looking to provide a replacement manifold.


I presently don't have any tangible power figures to provide people, I WILL DEFINATELY be aiming to obtain dyno figures and a 1/4 Mile time with AND without the manifold. This testing will be done using a 3.5L TJ Manual with extractors and 2.5" system, since my car is an AWD and is harder to find a dyno in Newcastle. And since 98% of AMC cars are FWD, this comparison seems more relevant, as is the mod level of the test vehicle.


I am expecting the price to be between $800-$900 for the V6 unit. Pricing and results of testing will be made available before seeking any sort of commitment from anyone.

What I do need tho is an EOI from AMC and non AMC-ers that are interested in such a mod, even if your tax chq wont surface until september, i still need a feel on whether this is worthwhile pursuing for the team.

Just a quick:

"F-yeah!
3L V6 3rd Gen Manual"

Will be fine.

Thanks folks, peace.:thumbsup:

HELL YES i'm in on this, i've been waiting for u to do it
3.5L V6 3rd gen auto
cheers
Rhys

Glad to see your still alive.

"Cash permiting YES - 2nd gen v6"

fo shoooo!

3.5L Manual!

oh baby... 3.5 V6 brudda!

Interested,

3.5 Manual TJ SPorts.

"F-no!
3L V6 3rd Gen Manual"

Too late now.....Turbo Miata FTW!

Yes, I will buy one. Just name a time.

6G74 Manual

2.6L Astron here :bowrofl:

hi

TJ 3.0L auto

Yes.

3.5 Ltr Ralliart Manual.

what about 3RD GEN 2.4L will you be doing these ???

You know I'm in. Possibly with the tb on the other end for more fun.

Hi All,

I've found some time in my week that doesn't involve work, spending time with my wife or chasing after kids which means: The 2nd prototype has left the drawing board!!

What's an Inlet Manifold? Didn't know there was a first prototype? Then click here and learn->http://www.aussiemagna.com/forums/showthread.php?t=29485&highlight=manifold

The next proto will incorporate lessons learnt, new tricks, borrow from cutting edge jet engine technology, and just be generally cool.

Most importantly:

The item will look near stock - and not 'Frankenstein-ish' as per p1. It WILL be 100% 316grade stainless steel and TIG welded.

Due to the requirements of: ease of construction, minimization of necessary pre-manufactured components (i.e. concentric cones, mandrel bends etc), we expect to make the purchase price quite attractive, making it possibly the best bang-for-buck mod available for the Magna family.

Ok some more info that I can make available:

* Strut braces will continue to fit with the manifold in place
* EGR function may not be supported - investigation of price etc needed
* WILL function safely and happpily with STOCK ECU
* Does NOT require ANY additional mods to the car. While additional mods such as cai, flowed tb, fpr, extractors, sports exhaust, thermo spacers, tb hot water bypass etc etc, aren't required for the manifold to produce powerful results, they will certainly enhance the manifold's contribution to power and fuel econ.


"But I own a 4cyl/2nd Gen"

Great, if it has a plenum and runners, I can provide a replacement manifold.


I don't have any tangible power figures to provide people, I WILL DEFINATELY be aiming to obtain dyno figures and a 1/4 Mile time with AND without the manifold. This testing will be done using my 3L TF Manual, since my other car is an AWD and is harder to find a dyno in Newcastle. And since 98% of AMC cars are FWD, this comparison seems more relevant.


I am expecting the price to be between $600-$900 for the V6 unit. Pricing and results of testing will be made available before seeking any sort of commitment from anyone.

What I do need tho is an EOI from AMC and non AMC-ers that are interested in such a mod, even if your tax chq wont surface until september, i still need a feel on whether this is worthwhile pursuing for the team.

Just a quick:

"F-yeah!
3L V6 3rd Gen Manual"

Will be fine.

Thanks folks, peace.:thumbsup:

Mate, I have a SOHC 12v 6G72 Intake plenum you're welcome to borrow as a template to make them for 2nd gen V6's. Also one for a DOHC 24v 6G74 which you could use to make me one :P (it's exactly the same as a DOHC 24v 6G72 intake plenum) and various other things you're welcome to if you want them for 2nd gen V6 modifications. Hell I have a whole 6G72 SOHC 12v here if you want to take that.

:D

Im in...
3.5L auto

3.5L manual ... im deffinetely in assuming u give due time to scrounge up some money :D

not worried bout you proving power figures as i think uve done enough around here to prove ur weight in gold!

"F-yeah!
3L V6 3rd Gen Manual"

very keen. 3L tf manual...

depending on looks:P im in fo sho 3.5l V6 manual third gen.

is it gonna look better than the one you made earlier? or....

3.5 Auto, will decide when closer to launch, thanks

.....not worried bout you proving power figures as i think uve done enough around here to prove ur weight in gold!

:stoopid:

"F-yeah!
3.5L V6 3rd Gen AutoManual"

I reckon EZBoy has got about $6000 worth of work in this thread alone!!

Ill wait for a price before i vest my interest:)

Yes indeed... 99 3.5L + auto +cruise + traction

Price permitting of course.

A big pat on the back for EZ Boy......I think every1 here appreciates his efforts.

EOI - 3.5 Auto but put some before and after figures if possible.

Regards

3 ltr TF

Will come down to price, that said at the current indicated price I'll take one please

Definately interested !

is it just me, or is this new mod well timed with tax returns ?:bowrofl:

what about 3RD GEN 2.4L will you be doing these ???

Yes, that's part of the plan.

Interested - V6 Second Gen

It may just be time to remove that 'Retired from active AMC Duty" crap from your .sig Ian.....

def interested!!!!!!!!!!!!

Interested and excited. It would mark my first major mod :D

Sounds good! 1st gen 2.6 Auto, can u do it???

"Fart Yeah!!!"

3L V6 Manual?

Definitely interested depending on price and benifits!

3.5 TH

Yep, interested - 2003 TJ AWD. Should go well with the rest of the stuff that is getting thrown onto it :)

Cheers
Heath Young

So is it going to be the same as the prototype? i.e. larger volume plenum chamber and two sets of narrow runners per cylinder?

So is it going to be the same as the prototype? i.e. larger volume plenum chamber and two sets of narrow runners per cylinder?

Nope. Redesign 90%.

so they wont look as ugly? :D lol

interested!

3.5 v6 TH

Nope. Redesign 90%.

Gonna need more info then before I decide if I'm intersted or not :P If you can promise me I'll be able to bolt an 85mm throttle up to it, that will only sweeten the deal ;)

Very interested as am happy with EZTB
Should make a package ie Thermo spacer and hot water bypass etc.

2002 TJII AWD Sports


Then I need to get the other End done.

4g93 late model :redface:

awsome, got a 6g74, and very interested

F-yeah!
3.5L V6 3rd Gen Auto

Another interested party...

3.5L KF Verada

Providing I have the cash... hell yeah. 3.5L V6 TJ, auto.

:D

Have you got a rough price outline for these when there done? even a rough ballpark figure?

Theres a rough ballpark figure in the first post :)

ez since all the gaskets need to be replaced when swapping it over (i know its extra work) but how would you feel about a bulk buy on rpw thermoblock gaskets for them as part of a package price.

F-yeah!
3.5L V6 3rd Gen Manual

Hell yes!

3.0 V6 3rd Gen Manual

(just need lead time to gather the funding)

"F-yeah!
3L V6 3rd Gen Manual"

Could someone take a measurement of the clearance gap between the top of the plenum and the strutbrace on a 3.5L and a 2.4L please?? Got the 3L info.

Hi mate, your looking at 45 mm with withline brace.
3.5 ltr

Hell yeah im in.... pm me when all is together...

Hi mate, your looking at 45 mm with withline brace.
3.5 ltr

Sweet, thanks!

I'm interested. 3.5L V6 AWD.

3 L Auto with brace. Very interested.

"F-yeah!
3.5L V6 3rd Gen Auto, but soon to be manual"

I'm interested. 3.5L V6 AWD.

Sweet - another Allwheeler! :D

definitely interested

3.5L KE Verada, im not very mechanical, what am i looking at to get this fitted? i live in maitland area so anywhere in newcastle area is ok, also looking to get flowed TB if anybody can help there.....

ez boy any update on when we will be able to start making orders ?

I'll have one for sure.

3 Litre KR Verada

No work done last thurs - eldest daughter cut an eye tooth - lost all sleep wed night, listened to her whinge the house down all thursday :cry::doubt:

Will the manifold support cruise control?
Are you considering making custom throttle bodies to go with it?

VERY INTERESTED

Have a Tiptronic TL AWD VR-X

Happy to participate as test mule!

:bowrofl: :bowrofl: :bowrofl: :bowrofl: :bowrofl:

hey ian,
im very interested for my dohc engine 3L 24v....

Also would you be able to make a dual t/b set up?? as in t/b's on either end of the manifold??
peace out;
aj

Will the manifold support cruise control?

Can't see why it wouldn't - as the cruise control is incorporated into the T/B.


Of course - if you want a plennum to match with an oversized "billet" Throttle body, chances are you can kiss your cruise control goodbye.

Can't see why it wouldn't - as the cruise control is incorporated into the T/B.


Of course - if you want a plennum to match with an oversized "billet" Throttle body, chances are you can kiss your cruise control goodbye.

That was the idea although i heard that the problem could be overcome by bypassing the Air flow Sensor when I get the ECU replaced.

EZ Boy do you know?

Mind if I ask what size Plennum your planning and will you be making throttle bodies too (I know you say you plan to match it so it will fit the standard throttle body i was just curious)?

was thinking stupid ideas right, what if u had 2 plenium chambers with 3 runners attached to each, and twin TB's side by side?? bonnet clearence might be an issure but its a thought

was thinking stupid ideas right, what if u had 2 plenium chambers with 3 runners attached to each, and twin TB's side by side?? bonnet clearence might be an issure but its a thought

thats kinda what i was thinking, dont 300zx's have this, twin TB on each side of the motor. but not sure if they are joined

Nothing stupid about it. Totally insane!!! Just kidding, put the shotgun down now....
Technically more advanced engines have multiple TB configurations from factory. Sweet. Very expensive and requires exact calibration and so on. Perhaps even multiple AF sensors etc. But it works way better than our cheapo systems do. But, if one wants such vehicle, spend $ 260 G on a Bema M5 or M6 or something :cry:
I have been considering this with engineer mate of mine who builds "stuf". I'd loose Cruise tho.


was thinking stupid ideas right, what if u had 2 plenium chambers with 3 runners attached to each, and twin TB's side by side?? bonnet clearence might be an issure but its a thought

wat about making one with twin oversized TBs on it, could this be done, would it require alot of other engine work to be done, pistons, cams, conrods etc..??
cheers
Rhys

Nothing stupid about it. Totally insane!!! Just kidding, put the shotgun down now....
Technically more advanced engines have multiple TB configurations from factory. Sweet. Very expensive and requires exact calibration and so on. Perhaps even multiple AF sensors etc. But it works way better than our cheapo systems do. But, if one wants such vehicle, spend $ 260 G on a Bema M5 or M6 or something :cry:
I have been considering this with engineer mate of mine who builds "stuf". I'd loose Cruise tho.
booya;
http://img69.imageshack.us/img69/1851/booyadualtb2nq.th.jpg (http://img69.imageshack.us/my.php?image=booyadualtb2nq.jpg)

multiple t/b usually utilise map sensors which im pretty sure stands for mass air pressure...
cruise control meh u wouldn't be worried about losing it every time your foot hit the floor.

ur mate could probs incorporate the factory cruise in a dual t/b like the above but it'd have to be altered.

Ian do you want to build me an inlet manifold like the above??

please

So would it be possible for an update, I've got the cash sitting here waiting for the exchange that's all, otherwise I'll get my new clutch if it's a while off.

spoke to Ian personally yesterday, he was working on them as we spoke....said he's hoping to get it finished soon......ill ask for a more definite answer when I see him on thursday if we dont hear from him sooner....

multiple t/b usually utilise map sensors which im pretty sure stands for mass air pressure...
cruise control meh u wouldn't be worried about losing it every time your foot hit the floor.



Pretty sure it stands for "manifold absolute pressure". But other than the acronym...... you probably know more about how they work than I do lol .

Ian do you want to build me an inlet manifold like the above??

Mine might be looking for a new home soon...

Mine might be looking for a new home soon...
I don't think yours will be the only thing looking for a new home. Have you seen Ian's signature lately? :confused:

I don't think yours will be the only thing looking for a new home. Have you seen Ian's signature lately? :confused:
Looks like his wife has put her foot down. Family always comes first, so if he's needed, he's needed. We will live.

Looks like his wife has put her foot down. Family always comes first, so if he's needed, he's needed. We will live.


yeah if his sig is true cant blame him .... making all the manifolds is a huge commitment ... and really if it gets in way of his family life then i dont think anyone can blame him .

all the best with the new job, we all understand if it doesnt happen,
but if it does ill add my name to the list.
3ltr tf manual.
if it goes to ebay can somone let me know please, i dont have ebay and will have to con a friend to get it for me

depends if i get the ccard pay off then YEAH BABY
3.5 V6 Tiptronic

Family before engineering??? I don't quite..... confused.....:shock:


.... making all the manifolds is a huge commitment ... and really if it gets in way of his family life then i dont think anyone can blame him .

Sshhh! Don't tell my Mrs that Dad and I are still mucking around with the manifolds. Going to take a bit longer to get finished but at least it's forward progress. :cool:

Sshhh! Don't tell my Mrs that Dad and I are still mucking around with the manifolds. Going to take a bit longer to get finished but at least it's forward progress. :cool:
this message will self distruct in 5.......lol

Sshhh! Don't tell my Mrs that Dad and I are still mucking around with the manifolds. Going to take a bit longer to get finished but at least it's forward progress. :cool:
I think this is some evil Mrs EZ Boy plot to get her own back and tease us to death :confused:

Sshhh! Don't tell my Mrs that Dad and I are still mucking around with the manifolds. Going to take a bit longer to get finished but at least it's forward progress. :cool:
If this is true it's great news. You're an asset to this club mate. Keep us posted.

Rpw may not get my money then :gtfo:

*** UPDATE ***

The internal and external runners and belmouths are completed and assembled. The plenum is finished and the inlet flange too. Need to get a TB gasket to the laser cutters and work out the placement of the internal baffle(s). The whole unit will then be coated in POR15 rust preventative and then testing and evaluation can commence.

First time for a LONG time that I've been excited about my car :D

First time for a LONG time that I've been excited about my car :D
Probably because you keep getting in trouble whenever you look ar your car lol

Great to see you're still tinkering away.

picsorItellthewifeandyougetbanned :bowrofl:

This is very exciting to hear, just don't get yourself in too much trouble if the missus finds out EZ...

this is sounding very interesting
i'll be in when i hear bak from the final testing
3.5L V6 3rd Gen tiptronic :P

very exciting news!!

All runners are assembled and ported (5hrs :coffee ). Got overzealous and welding in some sections before de-burring them :doh:

POR15 internal coating will be applied mon or tuesday and given the week to cure before assembling the plenum and then coating the plenum, baffles etc.

Then it's bolt-on time :dancin:

All runners are assembled and ported (5hrs :coffee ). Got overzealous and welding in some sections before de-burring them :doh:

POR15 internal coating will be applied mon or tuesday and given the week to cure before assembling the plenum and then coating the plenum, baffles etc.

Then it's bolt-on time :dancin:

thats awesome, cant wait to see them and hear about the gains mate.

piccies:D

Should be sweet.

Should be sweet.

I 2nd that :D

add 1 more interested, depending on final price. 3.0L 3rd gen manual with cruise

Another expression of interest - 3.5 litre 3rd gen Tippy.

sounds hot man! be sure to get some vid/pics of this new plenum!

Here's a sneak preview of the internals for the runners. I am probably committing commercial suicide but I really want to share the progress with everyone.

Of course this is mild steel and not anywhere near finished quality. Production items will be 100% 316 stainless steel, polished is a posibility at extra cost but I'll worry about that down the line if this one works as expected.

Enjoy.

I've probably just saved half of AMC a few hours surfing porn lol

i can understand the bell mouths at the plenium chamber, but why at the other end as well???

this looks expensive, but i'm sure you're havine fun

i can understand the bell mouths at the plenium chamber, but why at the other end as well???
:confused: I can only see bell mouthing at inlet end of the runners

2nd Gen V6

i can understand the bell mouths at the plenium chamber, but why at the other end as well???

this looks expensive, but i'm sure you're havine fun

They aren't bellmouths - they're the exit for the internal runners. They also have a 'scavenging' effect for the outer runners.

Maaan! Glad to see u're back to the engineering again. Awating more progress impatiently.....

Today?????

:)

Great work.

Some suggestion however.
How about rotating all the runners 15 to 20 degrees to the right ( In car line). This will move the throttle body out towards the side of the car.
This means that the inlet trumpets actually project some frontal area towards the throttle body.
I have seen some American 45 degree angled trumpets to help this to work.
This can also help the air flow in from the throttle body to the trumpets as the air will only have to turn 70 to 75 degrees.

Another idea is to taper the collector box slightly. Bigger cross sectional area at the throttle body end and smaller at the far end.

Also have a look at www.jenvey.co.uk.

So far your work looks terrific.
Cheers.
Gerry

Very nice. How soon will you be able to mass produce them in the stainless steel once the prototype is completed.

Hmmm, sounds logical, but I think the principle of the plenum chamber is to allow the air to "bounce" between the chamber and inlet pipes. So the angle theory might not make any diff....? Perhaps it would make a diff if the chamber was designed for the angled purpose?
The tapering idea is definitely correct, what I've seen in such re-designed chambers.


Great work.

Some suggestion however.
How about rotating all the runners 15 to 20 degrees to the right ( In car line). This will move the throttle body out towards the side of the car.
This means that the inlet trumpets actually project some frontal area towards the throttle body.
I have seen some American 45 degree angled trumpets to help this to work.
This can also help the air flow in from the throttle body to the trumpets as the air will only have to turn 70 to 75 degrees.

Another idea is to taper the collector box slightly. Bigger cross sectional area at the throttle body end and smaller at the far end.

Also have a look at www.jenvey.co.uk.

So far your work looks terrific.
Cheers.
Gerry

Found some more info:

www.Lesoft.co.uk

Lotus Engineering Software.

They have a free engine simulation package.

My let you play with riser lengths and plenum sizes.
Gerry

Good to see you getting to spend some time on the forum again Ian!!!

Found some more info:

www.Lesoft.co.uk (http://www.Lesoft.co.uk)

Lotus Engineering Software.

They have a free engine simulation package.

My let you play with riser lengths and plenum sizes.
Gerry

Don't suppose you've downloaded any of these? Got licenses? :shifty:

As far as the angled runners are concerned they certainly featured during the design phase but it's hard enuf welding between these runners let alone losing the space to the angling process. The other problem was low rpm resonance and induction noise. The plenum will permit the valve resonance pulses to be bouced back down the runners rather than impede incoming air. I don't think this is a serious issue thou. Because of the pipe-in-pipe design I need the large diameter outer pipe - if I went smaller diameter mid to top end power would be restricted. Because of the internal baffle design we intend to use the problem of cylinders 1-3 getting too rich due to interference from cylinder's 4-6 air requirements.

At the end of the day the item is really aimed to be an affordable but powerful addition any vehicle regardless of the level of modification.

I believe this item will replace extractors as the commonest first mod to be done due to the bang for buck and fuel economy gains.

Also it was deemed by a survey done along time ago now, that retaining the stock look was important to members.

I am also tinkering with a inline 6 throttle body plate, and a replacement for the MAF to TB inlet duct. Lucky me.

I am also tinkering with a inline 6 throttle body plate, and a replacement for the MAF to TB inlet duct. Lucky me.

I'd love to hear that. :cool:

Looks before performance? Hu? I give u permission to design the best performing device, not best looking :)

6 TB? Ooohhhhh..... found prices for generic TBs? I've been trying, no much luck yet.
U'd need to device quite large air(filter) box to prevent it to become the plenum chamber again? Cos the idea behind runner tube sizes and chamber volume (in single TB case) is directly linked with the "bouncing" air waves to create positive pressure, instead of standing waves.


Also it was deemed by a survey done along time ago now, that retaining the stock look was important to members.

I am also tinkering with a inline 6 throttle body plate, and a replacement for the MAF to TB inlet duct. Lucky me.

I think the phenomenom is called reversion or accoustic resonance progression?? The sound wave energy (a REAL force) hits the back of the closed inlet valves (predominantly low rpm where there is more closed valve time) and return up the inlet runners. These waves can cancel out waves that are on the same ?frequency? and slow the energy of the incoming air mass. Like splashing both ends of a bathtub full of water - the waves meet at the centre and very little wave energy will make it to the opposing end of the bathtub.

Do I believe that it will cost a single hp? Hard to imagine. Despite the force being a real one, I think that there are much more powerful forces that need to be catered for such as 'flow dynamics' and intake temperature etc. I believe more will be gained from paying attention to these areas than lost by ignoring reversion properties.

Anyway, who here's gunna be driving at low rpm anyway???

Also it was deemed by a survey done along time ago now, that retaining the stock look was important to members.

I am also tinkering with a inline 6 throttle body plate, and a replacement for the MAF to TB inlet duct. Lucky me.

I'd like something that looks hot. I like the polished look.

Having played with tuned length inlets on motorcycles I can tell you that the standing pressure waves set up make a big difference to performance. If you get a chance to get hold of a book called Scientific Design of Intake and Exhaust Systems it's well worth a read.

For example with the inlets, the idea is to get a high pressure wave at the inlet valve when it is open to force more fresh mixture into the cylinder and if you combine that with a low pressure wave at the exhaust valve when it opens it sucks the spent mixture out. If you design the exhaust properly you will get a positive node at the exhaust just before it closes so it has scavenged the cylinder with the low pressure to the point where fresh mixture is entering the exhaust and then the positive pressure wave pushes this fresh mixture back into the cylinder before the exhaust valve closes. Gives a mild supercharge effect.

It's a great book - design takes into account things like valve size, port size, cam timing, lift and duration, port length and rev range where optimum power is desired.

Having played with tuned length inlets on motorcycles I can tell you that the standing pressure waves set up make a big difference to performance. If you get a chance to get hold of a book called Scientific Design of Intake and Exhaust Systems it's well worth a read.

For example with the inlets, the idea is to get a high pressure wave at the inlet valve when it is open to force more fresh mixture into the cylinder and if you combine that with a low pressure wave at the exhaust valve when it opens it sucks the spent mixture out. If you design the exhaust properly you will get a positive node at the exhaust just before it closes so it has scavenged the cylinder with the low pressure to the point where fresh mixture is entering the exhaust and then the positive pressure wave pushes this fresh mixture back into the cylinder before the exhaust valve closes. Gives a mild supercharge effect.

It's a great book - design takes into account things like valve size, port size, cam timing, lift and duration, port length and rev range where optimum power is desired.

Good, it's settled - my design stays. we are looking into internal baffling but with the reversion effect it may be best to compromise with a splitter set behind the TB and an adjustable reversion plate so people can tune their own preferred power band. Maybe on the run without having to open the intake. :think:

This all sounded so straight forward when I set out.

I came across some scraps and thesis based on that book, there are several revisions with an EFI section in the latest print. Worth $80 I think from mem. Good investment I believe. Any calculations you want to share with us? I know the speed of sound, engine rpm, valve timing etc. Is that the basis?

I dunno how much info you've gotten on this, but heres a site that details on how, why and how to use the scavenging or 'ram' effect. The calculations are fairly basic, but it'll point you on a good path.

http://www.team-integra.net/sections/articles/showArticle.asp?ArticleID=466

Fully agree with Scorpion - that's why the design is so important. Dunno tho, how precise those measurements need to be. What I mean - if chamber volume etc is changed say by 10 %, will it affect the torque for example to move from say 2000-5000 to 4000-6000 etc.
In other words, how much is there to be "adjusted"? All very interesting stuff, eh!

BTW EZBoy - what's your estimated sale price for this beauty? And more importantly - when....:) ?

Good, it's settled - my design stays. we are looking into internal baffling but with the reversion effect it may be best to compromise with a splitter set behind the TB and an adjustable reversion plate so people can tune their own preferred power band. Maybe on the run without having to open the intake. :think:

This all sounded so straight forward when I set out.

I came across some scraps and thesis based on that book, there are several revisions with an EFI section in the latest print. Worth $80 I think from mem. Good investment I believe. Any calculations you want to share with us? I know the speed of sound, engine rpm, valve timing etc. Is that the basis?
http://www.potto.org/

I am curious why you want this basic data. It is all available as part of various tuning software packages such as engine analyser pro, with which you can download a demo version. Reversion is predominantly used with exhaust flow, which is inherently chaotic in nature.
The issue with harmonic tuning is which harmonic are you going to use. The first is the most powerful, but it will also require the longest inlet tract. You can cross ram the pulses, but as with any harmonic tuning it only works at a specific point in the rpm band. There should be no 'reflection' from the plenum wall. The wave reversal occurs at the end of the runner and not from any bounce back, though you can use a reflection plate, but then you are complicating the system and reversion plates have the potential to adversely affect the harmonics at other rpms, this is one reason why they are generally not used on an engine with a wide operational range.

Any progress here? :)

Anything happening with these plenums? Im bloody interested!

Yep - slowly thou. Should be able to spend some more time later this/early next wk. Had to change the inner runner supports for ease of production. Had a meeting today with my lasercutter dude to discuss that very point.

Anything happening with these plenums? Im bloody interested!

:stoopid: :lurk:

so am i when would we see one come of the production line ? i want one so i dont loose to another super charged commy again :badgrin:

so am i when would we see one come of the production line ? i want one so i dont loose to another super charged commy again :badgrin:


You lost to a supercharged commie :shock:

I'm still wanting one also.

so am i when would we see one come of the production line ? i want one so i dont loose to another super charged commy again :badgrin:


dont worry i lost to a supercharged vx spac to. except my car was stock standard. i need how ever outrun a stock vl with a pod.

good luck with the inlet manifold, hope to see the finished product soon

You lost to a supercharged commie :shock:

I'm still wanting one also.


yeah only by half a car tho and my car is stock as i only had it for one day at the time i (was still getting used to it ) they are quite slow for some think that has forced induction

:stoopid: :lurk:
Sorry for butting in on your territory. I will remember to ask in future. :doubt:

Dave you dont need a manifold. Your car is quick enough as it is.
The fella that got blown by the super6 be careful mate cause there are some great mods out there for those. Smaller pulleys intercoolers etc and they sound stock too. Some even do 12's :)
Regards

Sorry for butting in on your territory. I will remember to ask in future. :doubt:

No offence meant, mate! :shock:

My post means "I'm glad this thread was revived. I'm with Type40, interested in a plenum and lurking to see if more info is posted"

It's hard to transate smileys into words. :D

EZ Boy,

Is this likely to be a bolt on for the 380 or is that another project for the future? I know the strut brace clearance will be different...(probably the least of the problems?)

EZ Boy,

Is this likely to be a bolt on for the 380 or is that another project for the future? I know the strut brace clearance will be different...(probably the least of the problems?)

Send me a 380 and I'll have a look :) Even the plenum would be enuf to make a jig etc.

EZ Boy, Just out of curiosity, are the intake plenums for the 3.0L identical to the 3.5L ? Or are they a different size/shape?

EZ Boy, Just out of curiosity, are the intake plenums for the 3.0L identical to the 3.5L ? Or are they a different size/shape?

Ident.

Ok, so when you have the final product in production, and i ask for one to fit my 3.0L i have now, and i do my 3.5 conversion, i could use it on the new engine?

Ok, so when you have the final product in production, and i ask for one to fit my 3.0L i have now, and i do my 3.5 conversion, i could use it on the new engine?

Bingo. Same plenum, TB, heads, and other paraphenalia. The differences occur between the T/KE & T/KF VS T/KH and onwards which pickup EGR.

Because the 3.0 and 3.5 have different acoustic characteristics will the manifold you are designing be suited to one engine more than the other? Or will it be a compromise to suit both engines?

Was interested when I opened this thread, but got left behind with all the tech talk. :redface: .
'96 TE 3.0 manual, but seeing as you are in NSW would like to hook up maybe on next cruise for mod pointers on a virgin mill.

Was interested when I opened this thread, but got left behind with all the tech talk. :redface: .
'96 TE 3.0 manual, but seeing as you are in NSW would like to hook up maybe on next cruise for mod pointers on a virgin mill.

The tech-talk can be streamlined to "makes the car go faster" :D

It's a direct bolt on deal, so no mucking around making or modding your car with limited or no tools. Simple is best.

I had the prev manifold on my wife's TF 3L manual for a while (she wouldn't give it back :shock: ) and it was good fun.

Intererested. manual TJ sports.

Would love to see some dyno results:)

How is this coming along so far EZ boy? Are there any updates?

No pressure.
No pressure.
No pressure.
No pressure.

Patience.
Patience.
Patience.
Patience.

Aaaarrrggghhhhh - can't wait. C'mon. Want this yesterday! :rant:

No pressure.
No pressure.
No pressure.
No pressure.

Patience.
Patience.
Patience.
Patience.

Aaaarrrggghhhhh - can't wait. C'mon. Want this yesterday! :rant:


lol, i know exactly how you feel. lol, it sounds too good to be true really... lol

lol u all say that now but i bet u 10 bucks when ez boy has made them only about 10% of u that expressed interest will follow through ... :bowrofl:

lol u all say that now but i bet u 10 bucks when ez boy has made them only about 10% of u that expressed interest will follow through ... :bowrofl:


That would all depend if its a gimmic or it really does make a weapon out your car.

well a good inlet manifld, with headwork, cams a tune and all the basics i think u may be close to having a weapon in regards for NA 6 cyls

but ur not going to get a huge amount out of this thing alone, ull never get a huge power gain from 1 mod alone, however it woulb be a very good start thats for sure

lol, i know exactly how you feel. lol, it sounds too good to be true really... lol

I'm not worried about you bastards - I WANNA DRIVE IT!! :bowrofl:

Ditto. (arms crossed, thumping his foot on to floor) :D


I WANNA DRIVE IT!! :bowrofl:

I want one. Ive had a quick look over the thread but i cant be stuffed reading all of it. Are you going to be selling these?

I want one. Ive had a quick look over the thread but i cant be stuffed reading all of it. Are you going to be selling these?

If all goes to plan I intend to make them available to the club members for sure.

Will u be doing 1st gens?

Will u be doing 1st gens?

Sorry buddy, very unlikely.

what about 2nd gen 4cyl?

its the same engine dude... so u can consider it a no

If all goes to plan I intend to make them available to the club members for sure.

Have you set a price for it yet?

I could be interested as well.

Will u be doing 1st gens?

best way to improve our intake is redo the plenum where the TB bolts on so its 55mm+ cant bore the stock one as the alloy is too thin, so ez if you just want to make us 1st geners a new plenum with runners that bolt to the stock manifold id be down for 1 sure would go nice with the 55mm tb you done for me

best way to improve our intake is redo the plenum where the TB bolts on so its 55mm+ cant bore the stock one as the alloy is too thin, so ez if you just want to make us 1st geners a new plenum with runners that bolt to the stock manifold id be down for 1 sure would go nice with the 55mm tb you done for me

Send me a manifold and I'll check it out for sure. :thumbsup:

if you want ive got one here, think i still have the shops post info

if you want ive got one here, think i still have the shops post info

Upto you. I'd like to set eyes on one 1st. Should be able to make something of it. The question is "who is going to fork out $500-1000 for a 1st Gen Magna mod?"

The manifolds are cool, I'd put one on just to have an excuse for that bonnet scoop

I'll pay for one at the lower end of that scale ez-boy

see your point 500-1k could be spent on 2nd gen T9 head shaved flowed and would probly see more gains using what i have

Will you be doing higher flowed throttle bodies to suit the manifold is once its finished (i know it will hook up to stock ones just curious)?

Maybe able to have my arm twisted on that. See how time pans out.


The manifold is 99.98% finished just some touchup paint for additional welds done yesterday and it'll get strapped on :dancin: Looks chunky :shock:

Maybe able to have my arm twisted on that. See how time pans out.


The manifold is 99.98% finished just some touchup paint for additional welds done yesterday and it'll get strapped on :dancin: Looks chunky :shock:


If your gonna sell this one I'll buy it right away

Maybe able to have my arm twisted on that. See how time pans out.


The manifold is 99.98% finished just some touchup paint for additional welds done yesterday and it'll get strapped on :dancin: Looks chunky :shock:

noice! good luck with it man! let us know how it goes! really keen!

noice! good luck with it man! let us know how it goes! really keen!

I'm in the exact same boat, everytime I see this post updated i jump on to see if they are available yet...

I wish I had ez's talents, I had my bonnet open this weekend showing off My Ez Boy POD Box, can't wait to have the Manifold to go with it. :D

Geesshhh - I was just about to place an order for the plenum "from elsewhere" when I accidentally saw the update on this one. I need XMas present for my car - he is sooking so much, I can't listen to it any more.
Soooo - when, how much etc? Soon....? :cool:

Ian, how have you been travelling with the variable intake system on the 2nd gen plenum I gave ya?

Really want the pod box :cry: Manifold as well.

Ian, how have you been travelling with the variable intake system on the 2nd gen plenum I gave ya?

It's turned itself (Transformer-style) into a 6 pack, inline throttle body bank :shock: More on that some other time thou - still lots of work to do to it.


Ok, the Manifold install. Dramas accessing the rear bolts which wasn't entirely unexpected, modification will be done asap, the other hitch was the angled throttle body neck of the plenum (like the 380s) it is just too tight to retain my current pod box etc. So more work to be done.

Seriously thou, for the humping around I think it will be unfeasible to produce this 2nd prototype for the masses, and am leaning HEAVILY towards a production version of my earlier 'Frankenstein' / 'Freddy Krueger' prototype except with numerous small improvements notably bellmouthing, considering supporting EGR except that anyone with extractors doesn't retain the EGR anyways so bit of a moot point that eh?.

Can begin production of the Over/Under Manifold at the drop of a hat. Dyno figures aren't avail as I sold the proto but if I can scrape enuf $$ up I'll try and get a staino one made up and dyno'd on a local FWD that's been offered to me for eval.

Thats the story folks. Naturally some customisation of the unit can be performed, most common request seems to be throttle response and low rpm which is a function of reducing the plenum volume. It is the cams, mmt, stroke/bore that hurts our low down thou so don't expect a miracle turnaround in low down. Mid and top end were really strong and fuel econ when cruising improved 1.1-1.7L/100km in my AWD without extractors.

Click here to have your say on the plenum's appearance:

http://www.aussiemagna.com/forums/showthread.php?t=42838

Thanks! :D

Any idea on what sort of price we'll be looking at?

Any idea on what sort of price we'll be looking at?

AIming for sub $800. Maybe as low as $650. Depends on the materials and laser cutting, as well as if people want a fancy cover. Will make the covers an additional cost or even better - someone else on AMC can make them and provide them to members lol


Affordability needs to be the key. I'm going to offer Barry's Thermal Gasket set as an option too, may even be standard inclusion - time will tell.


Anyone want to send me some money to get the lasercutting started and materials bought?? :shifty:

id bet people would be a down deposit on it? it sound like its going to be a veryyyy goooooooood mod!!

I'd be happy to put a deposit on it:D

Question... Would a computer upgrade be required for this?
Magnas seem to be very limited as to what you can do before the computer reaches its limits.
I understand that a aftermarket or piggy back computer will get the most out of the mods, but $1500-$2000 is a bit rich for some people...

:stoopid:

I too am happy to put in a deposit, if it means I'll get it nice and quick when they become available :)

Question... Would a computer upgrade be required for this?
Magnas seem to be very limited as to what you can do before the computer reaches its limits.
I understand that a aftermarket or piggy back computer will get the most out of the mods, but $1500-$2000 is a bit rich for some people...

Stock ECU has ample play for this mod. Naturally fine tuning with a piggy back ecu would snatch a few more ponies here and there, but as stated this mod will function well with the stock ecu and no other mods.

I too am happy to put in a deposit, if it means I'll get it nice and quick when they become available :)

Ditto - within reason and if promising quick delivery.... :)

Im also interested what sort of gains you are expecting from this...
Would I be right in assuming most of the gain would be torque gains?

power = torque x revs.

So yes, an increase in power at the same revs means more torque is being made. The only way to make more power without increasing torque is to increase the engine's ability to rev higher. When you redline it, and power drops off, it's because there is very little torque left, so even thou you are revving higher, there isn't enuogh torque left to make decent power.

As EZBOY stated, you will see a nice power gain in the midrange and top-end, with neglible gain (maybe even slight loss?) in the low-revs. Of course, this can be customised. My general impression is smaller chamber + narrow runners = better low-down power, larger chamber + wider/longer runners = midrange/topend.

Have you tested any of your modified intake manifolds on a 3.0L?

If so, where the results similar to the 3.5?

As EZBOY stated, you will see a nice power gain in the midrange and top-end, with neglible gain (maybe even slight loss?) in the low-revs. Of course, this can be customised. My general impression is smaller chamber + narrow runners = better low-down power, larger chamber + wider/longer runners = midrange/topend.

Yep - all depends how it's been done. But I'm in the impression that this particular tuning/design would provide better output right from low RPM. And that's what I would be after - provided engine doesn't "die" at 5000 or something...... cos now it nicely screams to 6500 with usable power. But only starts after 3000.

The Custom Manifolds I am about to offer will be near copies of the 1st prototype I made (http://www.aussiemagna.com/forums/showthread.php?t=29485&highlight=manifold) last year but with major modifications:

1) Cosmetic makeover, possible bead blasted finish
2) Welding much tidier (I've had a lot more practice since last year!)
3) Fully 316 Stainless (Salt water resistant grade)
4) Internal Bellmouthing of runners
5) Plenum changes to shape and volume


POWER GAINS

While there's no bolt of lightning under 3000rpm, the motor is very smooth and fuel economy is very good. The smaller runners increase the air velocity and allow the motor to fill with air much easier. Try drinking water from a bucket using a 40mm hose :redface:

As rev's increase the engine creates a stronger suction and has a larger air demand so more air is moving down the runners so the velocity increases thru demand. By using twin 1.1/4" runners per cylinder - the stock runner is outflowed by 15-or-so % which can provide more air the engine at high rpm than the stock runners can.

The Plenum volume effects the power delivery too. If people want a more responsive motor but less top end availability or revving, a smaller volumed plenum can be supplied, and vice-versa.

My AWD would rev to 7000 before changing - when left in "DRIVE". And it would still be pulling!

I ran my 1st Proto on my AWD and my 3L TF 5spd manual. The TF's 16s would wobble and distort under straight line acceleration in 3rd gear when fully inflated. So yeah - the often neglected 3L will love this mod too.

COST

Ok, $. My Lasercutter can save us about $115 per finished manifold if we can order the flanges in batches of 5 or more. The 1-off prices are astronomical.

The FINISHED price will be $690.00 inc GST PLUS freight.

There is a $200[b] deposit required and delivery time is expected to be around 2-3wks from arrival of deposit.

Payment is by MONEY ORDER ONLY, sorry no eft. The price goes up for EFT and Bank Cheque. So save your money and send a money order please.

I do need 5 people asap who are commited to this to get the lasercutting quota met then I can afford the lasercutting for future orders.


[B] DYNO SHEETS will be provided ASAP. But rest assured, as with other MODS I've produced for AMC members - there is no bu115h17 here - just results.

Well I'm certainlly interested, thats is a very reasonable price.

And once I see the power curve from a dyno on a 3L (if you do one) you will have my deposit that day :D

$690? Hell yeah.

Very keen to see the dyno sheet!

i'll be in, as long as it will be able to retain the standard engine cover

A quick reminder:

If you haven't voted for the styling of the plenum and runners click here: http://www.aussiemagna.com/forums/showthread.php?t=42838

At present about 50% want the unit bare, 25% want something funky, 25% stock. A handful are happy with something inoccuous and generic.

Is installing this as simple as unbolting the old manifold and putting the new one on?

I am definiatly interested but have a few bills to pay off. When i get that sorted out and know how much money i have to play around with ill let you know. Should be in the next week or 2.

Do you have any idea on what the postage would be?

I'll be one of the 5! Keen to see the dyno as well.

Im in, and Ill pay you cash if its OK? Ill put down $260 to cover the $60 I owe you for the ISC from the other week.

Thanks firstly to everyone at AMC for baring with me while I've battled cash flow crisis', kids, the Mrs and live in general to finally get to the point of being production ready.

Without all the encouragement and feedback (negative is also a feedback), we've all learnt a lot and I strongly believe that this mod will be one of the best bang-for-buck mods that can be done to the 3rd Gen V6's.

I have no plans at present for other gens or for the 4cyl motors, but that will no doubt change once I get thru the V6 3rd gen demand.

I am finalising options etc for the units and will make a one-off smaller plenum volumed unit to assess it's responsiveness and power delivery. This may lead to the availability of 2 manifolds being made but with slight variance to perform their varying functions.

Some people will want a quarter mile crusher that returns great cruising economy but doesn't compromise driveability.

Others will prefer a crisper low rpm and mid with better throttle response (the sort a 65mm tb should deliver) that other V6 motors take for granted. Fuel economy will also be sharp but may lose the willingness to rev over 5500 and make less power there and above.


INSTALLATION

Direct bolt on. The manifolds do NOT support EGR systems - but if you have extractors then you don't have your EGR running correctly anyway ;)

Takes about 60-90minutes with correct tools to remove and reinstall the manifold. It takes me less time because all my nuts and bolts are so loose from 2yrs of modding and trialling.

I cannot give details on freight atm - once I have a finished unit I will have the dimensions and weight so I can then quote per customer accurately.

I will do my absolute damndest to ensure that it is clearance compatible with Whiteline and other branded Strut Braces. No point going fast if you can't corner :P

I will also try to make the stock cover fit. I will try supply the unit initially with no cover, but maybe making a cover later which would've been an additional cost anyway. I'd like to see someone else on AMC put up their hand for this. I'd love to hear from anyone with relevent fibreglassing or plastic moulding skills. Might give my mate Simon at Bunbury Motor Sports a holler :think:


Nearly done...

I now have the minimum quota to finance the break quantity for the laser cutting. So thank you from me and the other AMCers waiting in the wings.

If you'd still like to get on board, by all means, the more the merrier. The lasercutter is trying to squeeze me in on Friday :dancin:

Does this mean that replacement 2nd Gen V6 plenums are shelved for the moment?

I'm very interested....I'm always happy to take one for the team....I'd put my money down now but I'm scared I'll get somethign that looks either uber rou of place (when I'm trying to maintain something resembling stock and anti rice). Can you provide an example pic??

hi, i am interested, very.... IF possible would it be cheaper to send more then one, say for example if two or more people that live close to one another want to get one, it may be cheaper freight wise.

EZ, can't we do just simple bank account transfers? Internet banking is so easy and free - unlike MO.

EZ, can't we do just simple bank account transfers? Internet banking is so easy and free - unlike MO.

I would have preferred this option myself, but I believe EZ Boy has his reasons for not wanting to go with this option.

Either way, I'd just like to thank Ian for his effort and willingness to produce such items :D . It's great to see such active members. I just wish I had the skills to contribute in a similar way.

I second that....

Much respect to Ian :)

Btw was there any change in induction noise, exhaust noise?

I would have preferred this option myself, but I believe EZ Boy has his reasons for not wanting to go with this option.
Either way, I'd just like to thank Ian for his effort and willingness to produce such items :D . It's great to see such active members. I just wish I had the skills to contribute in a similar way.

I think I guess such reasons... cash is cash.... ;) Ok then.

Agreed and appreciated.

I'd say that keeping the money away from bank accounts has its advantages... 'Specially at tax time...

As the PM said I sent you last night, Definatly interested just curious to what finsih look you have decided to go with after your poll thread...

I agree, definatly shown your weight in gold in these forums. Bigs Thumbs Up to Ez.

3.5L TJ Exec Auto

I'd say that keeping the money away from bank accounts has its advantages... 'Specially at tax time...

:stoopid:

If people want to pay my tax rate on top of the base price then electronic transfer is fine with me. Actually it would probably still be good value :think:

Happy to group post - may save some $$.

Haven't got any pics yet or dyno to post. I just know rhat my car sux without the manifold and flies with it on. Simple enuf for me. But seriously, once the production units are up and running around, I have a member lined up to donate some time (along with a discount) to get the figures done (for people who like numbers).


To be more transparent about the progress:

The manifolds I am running production on are improved versions of my 1st prototype build last year. This proto didn't have bellmouthing, resonance deflection, calculated plenum volume etc etc. So while the proto1 was a massive improvement over stock, Imy mind boggles to think I'd only scratched the surface with it's development.

So with Christmas looming and this project lagging it's time to bight the bullet and get things rolling.

I'm meeting the lasercutter again tomorrow arvo at 3pm to resign the TB flange and some other small items that make up the plenum shape.

I will take the liberty of ordering the first 5 full sets of flanges at that time too, with expected delivery early to mid next wk for them. If anyone wants to pay a deposit in advance that would really help me next wk when I try to pickup the goods :D

This is shaping up well for production - much better than I was expecting. I was anticipating lots of small dramas and drawn out assembly since I decided on a whim to start taking orders. So yeah, I'm pretty daunted by the task but with everyone's patience we'll be eating falcodores for 5 meals a day soon enuf. :cool:


Manifold Covers:

I've decided to provide mounting for the stock engine cover, BUT; I am talking to Simon at Bunbury Motor Sports (AMC Member) to see if he's able to produce a mould and then create custom covers at people's request. Imagine a clear acrylic cover over 12polished stainless runners and some neons or leds for color. Autosalon will be sick of seeing Magnas!! lol

In summise, I can't afford to include any sort of cover for the manifolds but I am hoping that AMCers will be interested in creating their own unique covers with the help of Simon and other skilled operators like TZABOY and John at JVMDesign to name a few.

oooer..

quetion.... will the strut brace still fit on the magna?

I will do my absolute damndest to ensure that it is clearance compatible with Whiteline and other branded Strut Braces. No point going fast if you can't corner :P


There you go choonga.

There you go choonga.
ahhh... /me sighs in relief!

I'm meeting the lasercutter again tomorrow arvo at 3pm to resign the TB flange and some other small items that make up the plenum shape.
Do you have any idea if there's a larger throttle body option available? I'm not suggesting you supply something, just wondering if there's a 70mm that could bolt up to it (apart from the only 3 RPW ones that were made and the few backyard attempts that members have made).

Do you have any idea if there's a larger throttle body option available? I'm not suggesting you supply something, just wondering if there's a 70mm that could bolt up to it (apart from the only 3 RPW ones that were made and the few backyard attempts that members have made).
The largest TB that could be port -matched is 100mm. I am putting a tapered neck from the plenum to the TB plate so just a matter for the individual to laser cut (or whatever) a flange to suit their desired TB and just CUT the taper at the right size and attach the flange.

The production item will be made to accept the stock TB outline and throttle cable only. Modifying this is upto the individual.

Ok, we've hit problems already... :rant: :doubt: :cry:

The lasercutter has quoted me in MILD STEEL and NOT the 316 Stainless I need. They will have the revised price for me monday minus a discount for mucking me around.

So I wont be cashing the deposits that people have sent - I will hold the deposit and contact each individual with the increased (sorry - stainless is dearer than mild) price and see if they still wish to proceed.

I am sincerely sorry for the inconvenience but this is outside of my control. I will be posting the CORRECT pricing monday night all things being equal. Thanks. :confused:

hey EZBOY, I sent you a PM, just incase you didn't get it.

Righto:

The use of stainless (even thou that's what I asked for pricing on) rather than the quoted mild steel from my lasercutting supplier has added over $160 per manifold to the final cost.

To summarise: The cost of manufacture of the 12 runner manifold will total $840 including GST. This does not include freight or a replacement engine cover of any type. The unit will endeavour to retain the stock engine cover for those wishing to retain them but more will be known once the production run begins this thursday.

The first few sessions will be used to set up jigs etc so don't expect 20 manifolds to be available next wk.

Dyno testing (for what it's worth) will be conducted ASAP once a suitable vehicle can be commandered and using a manifold from the first production batch.

If you have any questions please read the thread(s) and then decide if posting is necessary. Just think - I could be typing OR welding :cool:

you can use my car to test. hahaha i just want them first.!

Here are some quick pics of the first 2x sets of lasercut items. Just to keep everyone's mouth watering ;)

Here are some quick pics of the first 2x sets of lasercut items. Just to keep everyone's mouth watering ;)

mmmm lazercut goodness. Cant wait for my manfold :)

Cant wait for my manfold :)

hahahaha manfold:bowrofl:

top work EZ, you should probably build me a dual t/b manifold :D

Just to keep everyone's mouth watering ;)

That was ruffly about 200 bux worth of drool, EZ. (Received my deposit yet?)

you should probably build me a dual t/b manifold :D

Ok.

Sports: All runners are bent and flared. Jigs are nearly all done. Need to cut and merge the runners and assemble all the pieces. Sounds simple huh?

Killer: Yep. PM'd you.

If people are interested - I HIGHLY RECOMMEND THESE - you can purchase a complete set of Barry's thermo gasket sets with your manifold. Add $45 to the base cost. Helps seat the manifold surfaces better, cut heat soak into the manifold tremendously which means more power longer.

Let me know in you PM or cover letter. Thanks.

Btw I make no $ on the gaskets, just doing a service to AMC members by buying and distributing in bulk with Barry's help.

Although im still interested in this with the increase in price and a few bills that i have to pay, ill have to wait until i return to work mid january. Looking forward to seeing some dyno figures to.

Here are some in-progress pics. As you can see the gap between the runners on the plenum face is quite tight and is making it very slow going with the TIG. Looking at modifying the produciton process slightly to make this phase more efficient.

ummm......****

they look mean.

I take it there has been more progress on these.. and Im keenly watching to see how they come out..

any more pics available?

What about the RPW inlet manifold?
Is it the same kind of thing?
http://www.rpw.com.au/shop/index.php?option=com_content&task=view&id=106&Itemid=25

How do you think this project will compare?

What about the RPW inlet manifold?
Is it the same kind of thing?
http://www.rpw.com.au/shop/index.php?option=com_content&task=view&id=106&Itemid=25

How do you think this project will compare?
:gtfo:

This is the sort of sh!7 that annoys me about these forums. Why would I waste all my so-called spare time and money, that I barely have, to develop an inferior product. It's also interesting to note that the "SEARCH" button would reveal that I have in my 3years on AMC produced and supplied items not commercially available or VIABLE by other companies servicing the Magna vehicles.

Due to my new work and family commitments this project will NOT be seeing fruition. This is naturally a bitter pill for me to swallow but I simply cannot sacrifice my marriage for any amount of money.

The peole who have paid their deposit have or are being contacted and money refunded.

There is one manifold nearing completion that, if the deposit paying clients choose not to stake an interest in, will be sold thru AMC.


There were many unforseen technical issues that make this project financially unviable. The workshop equipment that was part of the purchase with my Father's exhaust workshop was suposedly designated for stainless work. Turns out that the liner in the MIG was contaminated which made a f***ing mess of the weld quality. The TIG is ok but not flexible enuf to reach easily between the dual runners where they join to the plenum plate. Changes in manufacturing technique could overcome this but the units are taking WAY TOO long to make as it is.

I may consider another manufacturer who can make these under contract and volume but if my Mrs sees me on AMC she takes the kids and half my wage for the next 16years. So sorry Club, but family has to come first. :cry:

Regards, and God Bless for the New Year.

Well ive been watching this thread and I think your work is brilliant. I am a boilermaker by trade so if ever you start it up again im happy to help manufacture it further or give any knowledge i can. Sorry to hear, I also find this forum a bit demoralizing sometimes.

I also find this forum a bit demoralizing sometimes.
So true... Sorry to her about the manifolds EZ but as you say, family does come first. Its all about priorities.

:gtfo:

This is the sort of sh!7 that annoys me about these forums. Why would I waste all my so-called spare time and money, that I barely have, to develop an inferior product. It's also interesting to note that the "SEARCH" button would reveal that I have in my 3years on AMC produced and supplied items not commercially available or VIABLE by other companies servicing the Magna vehicles.
...


I'm sorry to hear that you won't be going ahead with the development.
I only wanted to ask the question because I am a mechnical gumby and I wasn't sure if the other product was similar...

Well, I wish you all the best in the future...and I hope you at least find time join in the odd discussion here and there.

I'm sorry to hear that you won't be going ahead with the development.
I only wanted to ask the question because I am a mechnical gumby and I wasn't sure if the other product was similar...

Well, I wish you all the best in the future...and I hope you at least find time join in the odd discussion here and there.

My bad champ, long day with 2 overtired babies. The RPW unit is a cut and shut with bellmouths added and a larger plenum with other features no doubt. Mine was to be a completely brand-new custom unit. There are links early in the thread with pics etc of the prototype done last year for your interest and reading. Cheers.

ive just sat down and spent a hell of a lot of time reading all 3 of these treads and all i can say is mate family should not be sacrificed so i commened you for the road you have taken

but out of the interest of myself and felow amc members have you thought about putting up for sale the design to and materials to make this baby
just a thought

Good to see that you have your priorities right, Family will come first bit of a downer that the product will not become available but I think everyone will understand.

Look after yourself and the Family mate.

agreed with the family thing, thats good dude, family is 1st, hope you at least finish this 1st one to see how it goes

agreed with the family thing, thats good dude, family is 1st, hope you at least finish this 1st one to see how it goes
I'll let you know how it goes, when I get it:2cool:

Forums are always a place where people will ask dumb questions that have been answered elsewhere :)

I know what you mean about commercially viable - I was looking to cast some supercharger manifolds ages ago, and the setup cost (not to mention how cheap people are) was a major downer.

I never understand how cheap some people can be. Time and effort are NOT FREE. The workmanship relies on some pretty close tolerances and a very skilled welder.

That said, family comes first. Wives don't see reason or logic most of the time :P

Cheers
Heath Young

Being one of the three (only!) who forwarded a deposit to EZ, I heard about this before XMas. Obviously I was disappointed to hear the news, both the family issues and the welding problems. The work he has done so far should not be wasted. Suggestions ppl?
But - there was only 3 of us ready with deposits....!!!!

Being one of the three (only!) who forwarded a deposit to EZ, I heard about this before XMas. Obviously I was disappointed to hear the news, both the family issues and the welding problems. The work he has done so far should not be wasted. Suggestions ppl?
But - there was only 3 of us ready with deposits....!!!!

In a way it was fortunate that only 3 people were ready to go at the time. Most people would naturally like to see some dyno figures and some driver feedback before trying to hide $800+ from the Mrs lol

thats a real shame EZ, after seeing some of your workmanship close up, and the pics of your manifold you were on a good thing. but money doesnt grow on tree's and kids need thier dad.

dont totally fall off the face of the earth now will you

dont totally fall off the face of the earth now will you

I'll do my best, although my lease on the AWD is up in August. Better be some bloody cheap 380's or it'll be time to jump ship. Thinking Typhoon.

Better be some bloody cheap 380's or it'll be time to jump ship. Thinking Typhoon.
Jump ship! Get the Typhoon! :D

I'll do my best, although my lease on the AWD is up in August. Better be some bloody cheap 380's or it'll be time to jump ship. Thinking Typhoon.

Good idea ian, your thinking the same as me (and the missus too after i took her for a drive in one) and ive finally got the job promotion/pay rise that ive been wanting, so a new car is looking closer now but either way i'll be keeping the old magna as a thrash/development car.

Typhoon, so much potential for so little :shock: ... sell the blueprints for the manifold to fund mods :cool:

No idea how I would afford it but who knows how the new business will pan out.

The blue prints are nothing proprietory. I will be tying to complete a manifold well enuf to get a manufacturer to look at it for costing but no promises. Otherwise I'll just post a heap of pics and sketches on AMC for interested parties.

In a way it was fortunate that only 3 people were ready to go at the time. Most people would naturally like to see some dyno figures and some driver feedback before trying to hide $800+ from the Mrs lol
hit the nail on the head!!! was really looking foward to this..... oh well hopefully down the track there can be some way this will work out:)

Resurrected! I have been in negotiations with a foundry and hope to receive pricing etc on having inlet manifolds with twin runners, bellmouthing, larger plenum etc make from aluminium casting just as the OEM manifold is.

Will look quite stock, will clear strut braces, will go like a cat on fire.

More info as it is available.

bring it on! :D Cant wait for a price!

nice work man....!

Resurrected! I have been in negotiations with a foundry and hope to receive pricing etc on having inlet manifolds with twin runners, bellmouthing, larger plenum etc make from aluminium casting (not sand molds) just as the OEM manifold is.

Will look quite stock, will clear strut braces, will go like a cat on fire.

More info as it is available.

Great to hear Ian, hopefully the price will be competative with the "other" manifold supplier to the magna owners. :)