I was just doing some research and I was looking at the single Turbo on rpw and it says the auto trans can only handle so much but can you get better parts or anything that will strengthen it? Also if you single turbo it can you still bore and stroke it to like a 3.2 and get the heads ported polished and get stage 1 cam or will that give it a bit too much more power than the auto can handle. I was thinking what sort of power these mods would get if you could do them:

RPW (C) Stage 2 Engine Upgrade
- Bored stroke 3.2
- Heads Port Polished Stage 1 New valve springs
- Stage 1 cam
- plus the other stuff it says
AND RPW Stage 1 Single Turbo Kit 200 - 250kw
-Garret GT-28 ball bearing turbo with gaskets. Rated to 300hp set to 5 psi (Auto),
-Six oversize injectors
-FSE Rising fuel Pressure Regulator
-Greddy E-Manage piggy back computer system

Plus Race Extractors, Decent Exhaust With good flow, High fflow throttle body, CAI
What sort of power would you get with that what about cost anybody have any IDeas?
Also can you get something like a shift kit like you can get with commodore auto's?

Thanks for any help

++++
Greetings All.

No, It should be fine. Although you might want to look into strengthened pistons + conrods.

Also, as far as i know (with my limited mechanical knowledge :P ), you can not use extractors with a turbo, due to the fact that forced induction negates the effect of extractors. You might want to look into getting the engine more ported and polished rather then bored out that much. Maybe a hi-flo cat is in order? You also might wanna look into getting bigger, more powerful brakes if ya dont already have them :D
Thats all i can think of at the moment.

Cheers,
--Tonba
++++

Also if you single turbo it can you still bore and stroke it to like a 3.2

ok, when you turbo a engine, you must decompress it. by decompressing it and adding a forced induction you are actually INCREASING the effective volume of combustion. in short turbo'in a 3.. with the right setup would be just as effective as boring it out again. right? i think :doubt:


RPW (C) Stage 2 Engine Upgrade
- Bored stroke 3.2
- Heads Port Polished Stage 1 New valve springs
- Stage 1 cam
- plus the other stuff it says
AND RPW Stage 1 Single Turbo Kit 200 - 250kw
-Garret GT-28 ball bearing turbo with gaskets. Rated to 300hp set to 5 psi (Auto),
-Six oversize injectors
-FSE Rising fuel Pressure Regulator
-Greddy E-Manage piggy back computer system


YOur tranny is now officially dead. :doubt:
there are a lot of other bits missing in your rough list. but personally if you go turbo, doing stage 2 is just pointless. (cos most of those things would be mandorory for a turbo. such as the cams)


Plus Race Extractors, Decent Exhaust With good flow, High fflow throttle body, CAI
if you get a turbo. extractors are useless. when you go turbo you get "Exhaust Manifolds" which is what you need. not extractors. extractors are for N/A cars. Throttle bodies are limited by the plenum. only so much can flow through it. PM me for more info on that.
If you have a FMIC (front mount intercooler)_ then the "CAI" isnt as important.


cost anybody have any IDeas?
no idea, but if in theory the single turbo cost's half of the twin (so 1/2 of 12k is 6) and the stage 2 is worth around the same (cams etc = expensive) so yer, look at 15k easy.

PM me for any more info.

Bne.

PM me for any more info.

Bne.
:bowrofl:

what? :nuts:

:D

He wanted to draw to your attention and laugh at the fact you made a typo.

Thanks for all the help you are all so smart and knowledgable. SO booya you seem to be in the know of the can's and cannot's of mods so with what ive list of what i wanna do could you gimmie a list of things that can and should be done, and things i should forget about, if you could thanks.ILL pm you if thats alright

if you get a turbo. extractors are useless. when you go turbo you get "Exhaust Manifolds" which is what you need. not extractors. extractors are for N/A cars.

Ummmm Ben, every car has exhaust manifolds :D

Ummmm Ben, every car has exhaust manifolds :D


haha you clown! you know what i mean! :rant: lol

haha you clown! you know what i mean! :rant: lol
booya, i reckon tuned extractors would be a help on any system be it NA, Turbo etc... remembering that they (extractors, headers, manifolds) are pretty much the same thing (and stuffed if i know why the change the name of them all!), especially if they are slightly larger in diameter. Any less restriction in getting the gases out has to be a good thing! Turbo or not.

As for the cams etc, they are pretty much irrelevent with the turbo (as has been said), it would not be worth the upgrade! And i tend to think that boring and stroking the engine would be a bit of a waste as well.... it would be easier just to wind the boost up tiny bit more to over come the size of the engine. Basically i'd put the $$$ for bore and stroke into a bigger intercooler setup or strengthening your gearbox!!

well said dingy


but yer about the exrtractor/exhaust manifold issue

if you bought extractors you wouldnt end up using them anyway would you? as everything would have to be made custom and/or chopped. :nuts:

And i tend to think that boring and stroking the engine would be a bit of a waste as well.... it would be easier just to wind the boost up tiny bit more to over come the size of the engine.

Thats right, unless you are chasing maximum power don't waste your money on increasing the physical displacment.

Back in the Turbo F1 days the Engineers calculated that as a rough guide a turbocharged engine has a virtual displacment 1.5 times it's physical displacment,
example: XR6 Turbo has a physical displacment of 4000cc, but it has a virtual displacment of 6000cc (4 x 1.5 = 6). Ofcourse this will also depend on how much boost you run :D

But having a larger physical displacment will always give you more torque :badgrin:

well said dingy


but yer about the exrtractor/exhaust manifold issue

if you bought extractors you wouldnt end up using them anyway would you? as everything would have to be made custom and/or chopped. :nuts:


that was the point i was trying to make.
not so much tuned lenth is bad.. but so much more that a set of N/A extractors wont carry over to Turbo setup.

haha you clown! you know what i mean! :rant: lol

Yes, I know what you were saying, I just couldn't resist heheheh lol

ill second or third that as well, if u going the turbo route spend money on the trans or a manual conversion rather than bore/stroking, after that then u can wind up the boost. even 1psi extra would make as much difference as the extra 200cc u want from bore/stroking, and is really a waste of time for 200cc anyway.

disagree with you booya that decompressing and cams are essential, its not necessary for low boost turbo and the magnas low 9.0:1 compression is pefect for low boost with standard ULP, decompressing for more boost will kill the trans as u pointed yourself its the weak link. :cool:

im bit confusd why u r asking here the cost we can take a rough guess but the spped-shop themself can tell u that exactly.

disagree with you booya that decompressing and cams are essential, its not necessary for low boost turbo and the magnas low 9.0:1 compression is pefect for low boost with standard ULP, decompressing for more boost will kill the trans as u pointed yourself its the weak link. :cool:

i think he actually said that stage 2 cams were pointless... but anyway. the decompression thing shouldn't be a huge problem for a low blower! i've sure i've heard plenty of turbos running 9:1 compression

Well, I'd imagine you might be doing a cam upgrade so the exhaust gets out better.

Does the single turbo require a intercooler or would it be fine without it, if you did get one i assume that would get somemore powerr out of it aswell. they would be worth a couple grand wouldnt they. What sort of mods are available to strenghthen the auto box? If you could strengthen the auto, and with the intercooler then you could up the boost, with no worries.

yes I reckon youll need an intercooler!
Also exhaust manifods r extractors!!!
:badgrin:

bout 1000-1400 for a decent one

yes I reckon youll need an intercooler!
yeah, unless you wanna max around 5psi... and who does that??? no one!!! (except diesel patrols :mad: ), nah, you'll be needing an intercooler for sure!!

keeping boost low, like 7psi max can get away without an IC using 98 ron fuel,
but its not worth the risk. Suppose u drive say Perth to Adelaide and thers no 98 Premium its 40 degrees outside and u sitting on sustained high speed...detonation, dead motor, stuck out in the desert. if u cant afford an IC go water or water/methanol injection at least.

cost between 3-4'000 to strengthen stock trans, but i have only contacted 2 local trans places, there is probably someone who could do a bit cheaper out there.

3-4grand is still prolly cheaper then a full manual conversion.

at least that way its a safer method, and you'd prolly be able to our change any manual driver!! haha

*well, me anyway. ahhah*

So dave does RPW have intercooler. 4pleazn you said 1 - 1400 for intercooler thats not to bad whered you get that figure from. dave also if you go beyond 7 psi what internals need to be strenghtend apart from the auto. Also can you get like a shift kit for auto like commodores have?

So if you got the auto stregnthed for however many dollars and got an intercooler, can you run 10 - 12 boost on the single turbo. IF you get a IC do you need CAI at all? or can you use both?

Thats alright so the auto 3ltr will handle 10 with the conrod mods, thats good enough for me. 10 was what i was looking for

If you want to run more than 10 psi in a Magna - theres only one choice and its called a manuel gearbox unfrotunatly for all you auto owners.
Heh heh... the guys from the AWD VR-X Mitsubishi team asked if anyone has supercharged or turbocharged a Magna and I said there's a twin with 470HP at the wheels. Two of them remember seeing it in the Zoom twin turbo edition and asked how the transmission handled it. I think they were horrified but impressed that it's working. I also asked them about a manual transmission and they said Evo 7 or 8 was the way to go. Would possibly have to do a little bit of custom work but if you want, I might be able to get in touch with them to see if we can ask them some questions. They joked that they should wait for you to organise a bolt in kit :bowrofl:

Okay, keep us posted. I can't promise anything but sing out if you'd like me to try contacting them.

Any idea how much of the piping can go from the FWD to the AWD?

wouldnt cams be a major part in a turbo conversion, i dont no much about cars and mech stuff, but NA and turbo's cars have different cam setting

for eg a turbo will ahve a bigger opening time thus letting more air and fuel in, to take full advantage of the turbo

turbo = force induction

whereas a NA car the open and close cycle will be similar

am i correct???

for turbos cams cant have too much opening time (valve duration/overlap) because the back pressure from the turbo can get exhaust gases back into exhaust ports, not sure exactly how much is ok, but i think agressive 270-290 degree cams are out for turbo. however cam for some extra valve lift is fine.

so for instance does the single turbo BY RPW require a cam change or will it survive without one?

so if you run 10 psi with a 3 ltr auto you will need a new camshaft? whats a rough price on that 1g?

so if you run 10 psi with a 3 ltr auto you will need a new camshaft? whats a rough price on that 1g?

better make that two cams lol

so if you run 10 psi with a 3 ltr auto you will need a new camshaft? whats a rough price on that 1g?

i dont think there is much debate on camshafts, rather your starting to stretch the limit on your autobox.

remember, for example a autobox on a 96/97 TE is ageing around 6 years now. are you the original owner? or is it 3rd hand? how much crap has your original owner put the box through? you need to think of these things.

dave, why wouldnt you degree your cams apposed to replacing them? i dont mean to question your motivies, but i have had degreed' cams from pretty much day one of my modding history, and ive never encountered any dramas. (altho we are going to replace our cams only due to the extremem hp we wish to make, but for a what would be reletivaly "base") engine, what would be your most single supporting statement/comment to justify the purchase of a stg.1 cam

intresting to know.
Ben.

also i think if u were at the point with your turbo boost of needing upgrading cams u would also need to start decompression, and its not possible to just use a plate or extra head gaskets.
im curious just how much lift the stock cams and stage 1's have? assume the stage 2 would be around .5" - .55" ?

ill accept that mitsman :thumbsup:

very informative! :D

sounds lovley, if the turbo cams are boosting bottom end off boost while staying very smooth, could they also be used in a n/a engine in the same way?

They prolly would provide lower end torque brieflly but middle and high rpm would be shocking as they count on forced induction to make power up high, but all this is just a guess :D

Sorry for all the follow up questions but i dont want to go away from this thread with questions still in my head. so with the 3 ltr auto is it possible to do these mods
-RPW stage 1 single turbo kit.....set to 10 psi
-Intecooler
-Conrods fitted with APR rod bolts shot peened and resized

Is this too much is this realistic? If the auto box is thrashed what if its reconditioned or something. Can you do the above without cams, will it still work?
If you have a intercooler do you still need a CAI will it still give you some more power?

ps that first sentence rhymes i just realised reading the post back.

WHat about the stock exhuast piping will that have enough flow with those mods plus high flow cats and a high flow exhuast?

No the turbo cams would acutally lose horsepower in the higher rpm ranges because

Thats what I said :D