Throttle body?
I would like to hear some feedback from ppl who have installed the (280 dollar) high-flo TB in their cars. Not the more expensive bored ones.
What engine size?
What mods?
How did TB work with mods added after TB installation?
Other benefits or comments.
Thanks

I'd love to tell you, but after porting out my plenium and installing my oversized TB, i realised he sent me the wrong 1. I have never seen a TB look like this and the outside of the TB still had greese on it and was far from clean. This was to go on my V6 12V and the car would not run with it on. I might get around to sending it back to get another.

I took mine off sent it across to RPW (just drove without the TB for a week) had it high flowed and sent back.

It is pretty good - noticably more response/torque in the lower revs up to 3000 (hoping it will improve with more mods).

Basically it got rid of that mushy feel of the pedal in the lower range.

It has been on for over a month now and I give it the thumbs up - though only gripe is that I think that for the amount of machining done to the TB it is quite expensive.

VR-X
5speed
KN panel

ps dont start your engine without the TB attached ;)

(just drove without the TB for a week)

Is that you being funny?

:lol: hahaha

how much jowet?

:oops: Only 2 ppl have TB? And one of them didn't work ok, cos being wrong model.
Hmmmm - not very popular item? Might not get one then.

:oops: Only 2 ppl have TB? And one of them didn't work ok, cos being wrong model.
Hmmmm - not very popular item? Might not get one then.

I plan to get one, but I'm just waiting for my ceramic coated extractors first before I get too caried away.

I'd really like to get an upgraded throttle body - I would love that little bit extra torque. Mitsiman, what is the cost + shipping for these units? Is it a big job to install one... (in a workshop, that is)? And what's the difference between the hi-flo and bored ones?

Theres definitly more than two floating around and remember the first one in this thread is not a TE Magna but a KR/KS verada which is a completely different setup etc to the late model magna range.

Most people are waiting ofr us to send them out we have 8 2nd hand units coming in now which cover three of the four variations which means we can start sending out the excahnge ones.

So within the next say four weeks there will be a steady turnover of units being fitted.

They are worth $220.00 for the high flowed units and are very easy to fit. You can change them over in around 3/4 hour with no drama's

So for $220, what sort of gains can u exspect? 1kw? 20kw? Would it be possible to get before & after shot of the "High-flowed" section?
Do u actually replace the valve with a bigger one or just bore out up to the
valve?

As I understand it the high-flowed TB is just bored out up to the butterfly, and while you might get a little bit more air in at WOT the point of the unit is to improve throttle response by allowing more air in (and hence more power) at part-throttle. So you should get a higher, flatter torque curve across the board and a power curve that climbs faster, even if it doesn't peak any higher.

Otherwise you can get the oversize TB like Manual, which is bored out to 70mm (up from 65mm I think?) but if you get this you lose cruise control and apparently there have been some problems with the butterfly sticking.. with this unit you will get a peak power increase as well as all the other good stuff.

Otherwise you can get the oversize TB like Manual, which is bored out to 70mm (up from 65mm I think?) but if you get this you lose cruise control and apparently there have been some problems with the butterfly sticking.. with this unit you will get a peak power increase as well as all the other good stuff.

Except that RPW don't make the oversized TB anymore. It had problems that weren't able to be worked around. Could you try a Falcon TB like Booya?

The high flowed unit is machiend up to and behind the stock butterfly as the stock unit is shall we say, S shaped and we modify it to make it a parallel bore.

So yes the effect is a HP improvement as more air flows through it now for example the stock throttle body on flowed say 80 cfm, after the high flow it will now flow 100 cfm as the area before and after the butterfly which was very restrictive is now removed.

Teh 2nd benefit is that by removing the restrictions immedietly in frontof and behind thebutterfly, the for the same throttle movement it now gets more air in hence the throttle response is improved.

The thing about fitting other throttle bodies to the car off different vehicles is that the don't match up with TPS and idle speed motors s well as issues with cruise and traction control etc.

If yuo want someting serious then hold on for our twin system we are making which we are halfway through. I know its been taking a while but we are trying to make one that fits all applications cruise and traction control combined.

wat about a 6pack throttle body ??
u have them and some info on them in the rpw website, are these avalible or on the agenda to be done down the track ?

Aren't you going to turbo it? Or is that someone else?

turbo, maybe but if the 6pack is avalible id rather stick to N/A

Yeah, I'd love to go full house N/A... that whole Super-Tourer noise would be awesome from the 6-pak... 'lil expensive though to go all out.. + I dunno how the 6-pak would affect driveablity.

The six pack has always been available but there are several things to remember

This is for extremely modified cars only otherwise you end up with no gains from it. In this i mean high compression, camshafts, extractors, programmable computer (Haltech)

You do lose some low rpm driveability like any qaud / six pack assembly but of course gain an aweseome midrange and top end acceleration.

For most normal street cars hang on for our twin TB system which is going ot be a better option

I've had the RPW high flowed throttle body for a week now, and I agree with the general consensus here.

We know it's not a mod that you'd expect massive HP gains from, but I did feel a noticeable improvement in response from 2000rpm up. A worthwhile mod.

It was odd that the idle rpm was very high (around 1100rpm) after fitting back the TB, but it settled to normal by itself after about 3 hours of driving!

Glad to hear you like it - hows the shifter - do you think you could go back to a normal shifter?

and how did the guys go getting the gearbox off. They rang me cause they were having some problems is it all sorted out now?

Glad to hear you like it - hows the shifter - do you think you could go back to a normal shifter?

and how did the guys go getting the gearbox off. They rang me cause they were having some problems is it all sorted out now?

The quick shifter is great. I feel I am getting faster acceleration now just because of the time saved between gears, and it's great the way you can go across the diagonal gears in closer to a straight movement, that having to shift up-across-up etc.

I’m a bit worried to hear the gear box place had to call you! They didn't tell me that, an acted like they had everything under control. Hope I get the car back in one piece on Tuesday. Actually first it was promised for Friday, then Saturday, now Tuesday.

Why is it so hard finding mechanics in Sydney who really have the know-how, and not just the talk?

I beleive they got caught as we all do sometimes with the magna pull clutches jamming which are a real pain in the butt when that happens. Probably 1 in 10 magna's jamm on teh clutch which is really unfortunate when it happens.

I beleive they got caught as we all do sometimes with the magna pull clutches jamming which are a real pain in the butt when that happens. Probably 1 in 10 magna's jamm on teh clutch which is really unfortunate when it happens.

Glad to hear it was something "normal" then... Can't wait to try out the LSD in a couple of days when the car's back together!

yep, AM members will be waiting for you to release a video of you making two black lines :badgrin: :badgrin:

i know ill be lurking in the background waiting.... :badgrin: :badgrin:

yep, AM members will be waiting for you to release a video of you making two black lines :badgrin: :badgrin:

i know ill be lurking in the background waiting.... :badgrin: :badgrin:

:badgrin:

I'll put the RPW CAI on first! Every little bit counts. Just waiting on Dave to get stock for me...

Velocity, where in Sydney are you??? If your after a good mechanic i recommend mine as i have never had a problem with their service.
Superior Automotive at Mona Vale.
For starters they have a clean white floor which always stays white, dyno avaliable and have race cars coming in and out all week long getting ready for track meets etc. Very professional outfit down there and they don't screw you around and buffet you in bullshit.

Velocity, where in Sydney are you??? If your after a good mechanic i recommend mine as i have never had a problem with their service.


I'm from the St George area, Mona Vale is about 1 hour away, which is a long way to go especially if I have to leave and come back later when the car is ready. But if they do a good job, it might be worthwhile travelling the distance.

So far I've tried my Mitsubishi dealer, who I'll admit seemed to do a good job however expensive. Then I've tried a few local guys, who make out that they know a lot more than they do!

Haaa!!!! When approx? Price? Twin barrel, is it? What size barrels? What else needs to be modded to fit it? Or is it bolt-on TB?
Anything else we need to know - sounds interesting.


For most normal street cars hang on for our twin TB system which is going ot be a better option

Price and ETA unknown as we are still developing the kit and looking at sources.

Fitment will be supplied with complete new modifeid top half of the intake manifold and we are making to fit with all origonal sensors and fittings via tuning on a piggy back ecu

Sounds pricey then - but also very interesting.....
Can't decide should I wait or go for the current hi-flow version..... hmmmm - decisions!!!


Price and ETA unknown as we are still developing the kit and looking at sources.

Fitment will be supplied with complete new modifeid top half of the intake manifold and we are making to fit with all origonal sensors and fittings via tuning on a piggy back ecu

Once we finish the twin systems those people who have teh high flowed units already will received the twin system at a discounted price

Now - that's what I call incentive marketing..... ;)


Once we finish the twin systems those people who have teh high flowed units already will received the twin system at a discounted price

i think a twin system and some rpw extractors and a stage 1 cam up grade will make me get very close to them gen 3 commies i should chomp them but need to lower as i have traction problems cause no weight on front tyres ;)

Just did another throttle body today very easy car drove in, machined it up and by 4.00 he drove away a happy person. Did some greddy and other work as well.

THe point being this is a great easy mod wihtout a huge expense and does not alter any settings.

We finally have sourced a whole range of 2nd hand ones now so we will be able to provide a larger range of units on exchange for those waiting including cruise control and TLC vehicles as well.

Yihoo!
Sorry to be repetitive with this order stuff :oops: , but, would you like me to send you pics of the current TB when I place my order? Or is it sufficient to give you the car model and perhaps engine number as a reference? I remember there was hassles with the amounts of vacuum hoses. Of course I include the Cruise and other details re TB.
So, if I send you a Money Order, would that be only for the TB (250 odd bux) - how about postage etc?
If you have one suitable for mine, how long before I receive it to Sydeneey town? A week?
Are all the other ordering regs on RPW website - easy enuff for a senile like me to understand. What - who said I'm senile - who was it!!!?? 8)
They do have warranty, even though they are 2.hand TBs....?
Thanks in advance.
Forgot - does intake manifold require work to match this TB - are the openings still matching?
Gossh, I have itchy fingers!




We finally have sourced a whole range of 2nd hand ones now so we will be able to provide a larger range of units on exchange for those waiting including cruise control and TLC vehicles as well.

Forgot - does the intake manifold (plenum) require machining with this type of TB? Or do they still match?

It's just a straight swap for the high flowed TB. The areas machined are areas around but not including the butterfly. Even then, I think it's mainly the step up to the butterfly. Naturally Dave could be more specific.

We just receive a batch of 2nd hand ones so we know have two exchange units with cruise control and two units with one vacuem line only. I believe we also have one unit with 3 vacuem lines only waiting to be returned.

The only one we still don't have is te late model units with cruise and traction control.

Note all cruise control models have the same vacuem lines. It is only the ones with no cruise and no traction which vary on teh vacuem lines - confused :D

Anyway on our website which we aer updatign I will have photos of all three options so people can identify them as to which you have.

If you send a money order it woudl be $220.00 for the modified throttle body, $110.00 core charge and freight of $35.00.

Time to delviery if we have the unit in stock 1 week. If yuo send us yours we can machine it and sent it back via express post in 3 days.

YEs they come with a 12minute / 20,000mm warranty :D

No machining required to the intake manifold.

If you send a money order it would be $220.00 for the modified throttle body, $110.00 core charge and freight of $35.00.

Time to delivery if we have the unit in stock 1 week. If you send us yours we can machine it and sent it back via express post in 3 days.

Yes they come with a 12minute / 20,000mm warranty :D

No machining required to the intake manifold.

Wow that is better than the warranty that I got with my bike last time I paid for repairs!

So the time is in the posting or have you the 2nd handers not machined yet and only do them to order? What does the freight include ie express post and then regular mail return?

We have a lot of people on back order on these so the first lot are already all sold and will be several weeks before they are returned back to us to be remachined and sent out again.

Time is around 1 week to delvier via normal post.

Updates on the Twin Throttles ??

Ready to go ??

Pricing ??

Any benefit to be had by fitting one to my Ralliart ??

Does anything else need to be done to fit this mod or any other mods need to be fitted ??

Will it work in conjunction with the standard computer and maybe and exhaust and CAI Pod ??

++++
Hey Mitsiman,

Which do you think has more advantages, Haltec Piggy Back or GReddy Piggy Back. Which one would have better output or would you recommend something else?

Cheers,
--Tonba
++++

Is there a Haltech piggyback system? I thought they were ECU replacements and one of the reasons why they only are usable on manual cars.

Are you able to give me any idea on the pricing of the twin throttles and Greddy ECU as well as a cold air intake and exhaust ??

How much power would you assume the Ralliart would have with these mods ??

WIll the car still be reliable and drive just as easy as it does now ??

Would i have to change the extractors that are on there standard or i can use them ??

Does the Ralliart use the same Throttle Body as a standard Magna 3.5 or does it use a bigger or modified one from Ralliart ??

Would this high-flow unit be of benefit for the Ralliart ??

Same one as far as I know. There might be a small gain but it's not like an over sized unit. This one lets are in smoother and more earlier in throttle application. An oversize will let more in period.

Since fitting the high-flowed T/B I've noticed an increase in torque in the mid to upper RPM range. After taking off in 1st if I give it full throttle the front wheels will start spinning at about 3500 rpm forcing me to change early into 2nd. Even though I have only stock RE92 tyres, they have about 75% tread and this never happened before my T/B was modified.
Also on a manual which has good throttle response anyway, the low to mid response is even further improved. Throttle/clutch operation on starting off now has to be quite precise to be done smoothly.
Looks like my next mods will have to be to improve traction such as rear sway bar and maybe lowering and of course better tyres.

Don't tell the missus! ;) ;)