turbocharge possible?

Ok, heres the deal. Im not the type of person to go buy a superfast car and brag about it. I like to get the I dont wanna slower so i'll say not as performing as other models. The first thing i looked at was a Vr-4. But like i said, i dont want to buy a car with a turbo on it, i want to install my own. Then i looked at the sl. Now dont get me wrong i love 3000gt/stealth but the whole 4 banger thing jus dont cut it in a car as heavy as the 3000gt. So i bought the 3000gt that comes with a N.A. DOHC V6. It has exactly the power i wanted to start with. Now, i want to put a turbo on it. Not that twin turbo crap with the funky lookin twin intercoolers, but one BIG turbo that puts out a minimum of 10-15 psi. I was wonderin if it could be done to these engines? Me and my father own a tuning shop which installs and tunes performance parts so dont try and throw me this" U dont know what ur talkin bout" crap. Ive done my homework ladies. I jus wanna know if i can put a single turbo on this car. Yes, im already lookin for a new transmission and the ecu from a vr-4 so the car can handle the boost. ANY HELP??????

Ok, heres the deal. Im not the type of person to go buy a superfast car and brag about it. I like to get the I dont wanna slower so i'll say not as performing as other models. The first thing i looked at was a Vr-4. But like i said, i dont want to buy a car with a turbo on it, i want to install my own. Then i looked at the sl. Now dont get me wrong i love 3000gt/stealth but the whole 4 banger thing jus dont cut it in a car as heavy as the 3000gt. So i bought the 3000gt that comes with a N.A. DOHC V6. It has exactly the power i wanted to start with. Now, i want to put a turbo on it. Not that twin turbo crap with the funky lookin twin intercoolers, but one BIG turbo that puts out a minimum of 10-15 psi. I was wonderin if it could be done to these engines? Me and my father own a tuning shop which installs and tunes performance parts so dont try and throw me this" U dont know what ur talkin bout" crap. Ive done my homework ladies. I jus wanna know if i can put a single turbo on this car. Yes, im already lookin for a new transmission and the ecu from a vr-4 so the car can handle the boost. ANY HELP??????

Where do I begin? First I have no clue what you are talking about with the 4 banger as there is NO 4 cylinder 3/S's available. Only a SOHC V6, DOHC V6, and a TT DOHC V6. And you realize that you can go twin turbo and still boost far more than 10-15 psi. In fact the stock 9b's can boost around 14-15psi. You can put a single turbo on but it is much easier to go with a twin turbo setup instead as there are a lot more parts for it. And yes you will need a new ecu and as for the VR4 tranny it is AWD and is known to break just as often or more often than n/a tranny's with all the power. If I were you I would definately look at our FAQ as most of your questions could have already been answered there. And there is no need to go on the defensive right away either saying, "I have done my homework ladies" and "don't give me this you do not know what you are talking about crap". In fact I would say if you have done your homework, I would think you would know there is no 4 cylinder 3/S and just your knowledge in general about the twin turbo setup holding 15psi. Other than that we would like to help you with your questions. Welcome to AF.

yes, you can put a single turbo on these cars. you can put 4 turbos if you like. you can put a turbo on a Ford Festiva. anything can be done with enough money :p .

but yes, people have gone the single turbo route before. the debate between single turbo and twin turbo rages on, so i won't bore you with it. people put twin turbos on the SL and base models b/c everything from the VR4 will bolt right up to the NAs. but keep in mind, as i'm sure you already know, in doing a single turbo setup, you'll need to fabricate the exhaust manifold. another note, since you have a NA DOHC, you should be aware that it has a 10:1 compression ratio, which will go nicely with boost, but there is a very fine and small tuning edge. on the other hand, the VR4 has an 8.5:1 compression ratio, so its more easily tuned b/c there's more room for error.

and about this 'getting a new ecu' talk, the 3S ecu cannot be flashed or reprogrammed. so you're options are piggyback engine controllers or a standalone engine management system. you can get away with an air/fuel controller such as the A'Pexi SAFC, and many have used those with great results. but for more tunability you'll want something like a Greddy E-manage or a MAF-translator + GM MAF, or even for the big dogs the AEM standalone EMS.

yes, as SL3000GT mentioned, the 3000GT/Stealth was never made with a 4 cylinder option. all models had a V6, some SOHC, others DOHC. however, let me correct his comment about the transmissions. the AWD transmission are very sturdy, its the transfer cases that tend to break on the 91-93 VR4s/stealth TTs. the FWD transmissions are sturdy, but not past 300hp to the wheels. so to put boosted power to the ground through a FWD transmission, it is highly recommended that you get a Limited Slip Differential, or you can swap in an AWD transmission and convert it to run in FWD mode.

please read our FAQ thread. its chock full of good stuff. also, the search feature will result in many threads with good info.

welcome to AF!

:banghead:

yes, you can put a single turbo on these cars. you can put 4 turbos if you like. you can put a turbo on a Ford Festiva. anything can be done with enough money :p .

but yes, people have gone the single turbo route before. the debate between single turbo and twin turbo rages on, so i won't bore you with it. people put twin turbos on the SL and base models b/c everything from the VR4 will bolt right up to the NAs. but keep in mind, as i'm sure you already know, in doing a single turbo setup, you'll need to fabricate the exhaust manifold. another note, since you have a NA DOHC, you should be aware that it has a 10:1 compression ratio, which will go nicely with boost, but there is a very fine and small tuning edge. on the other hand, the VR4 has an 8.5:1 compression ratio, so its more easily tuned b/c there's more room for error.

and about this 'getting a new ecu' talk, the 3S ecu cannot be flashed or reprogrammed. so you're options are piggyback engine controllers or a standalone engine management system. you can get away with an air/fuel controller such as the A'Pexi SAFC, and many have used those with great results. but for more tunability you'll want something like a Greddy E-manage or a MAF-translator + GM MAF, or even for the big dogs the AEM standalone EMS.

yes, as SL3000GT mentioned, the 3000GT/Stealth was never made with a 4 cylinder option. all models had a V6, some SOHC, others DOHC. however, let me correct his comment about the transmissions. the AWD transmission are very sturdy, its the transfer cases that tend to break on the 91-93 VR4s/stealth TTs. the FWD transmissions are sturdy, but not past 300hp to the wheels. so to put boosted power to the ground through a FWD transmission, it is highly recommended that you get a Limited Slip Differential, or you can swap in an AWD transmission and convert it to run in FWD mode.

please read our FAQ thread. its chock full of good stuff. also, the search feature will result in many threads with good info.

welcome to AF!

Jeez! That's what I meant! :p

Welcome to AF.

[quote=3133gt] Now dont get me wrong i love 3000gt/stealth but the whole 4 banger thing jus dont cut it in a car as heavy as the 3000gt.quote]

First off there is no I-4 in any model of 3S... you need to do more research...
Plus technically the VR4 is not heavy... A supra is about 3600lbs and Viper is at 3500 lbs and a TransaAm is 4100lbs... I can go on and on, name one car that doesn't have a I-4 in it at reasonable cost that is under 3000lbs...
I don't know why 3000GTs are the only ones who get stuck stuck with the Heavy reputation... You know the the non-turbo 3000GTs are right above 3000lbs, alot lighter than most V6 Imports.

Ok, heres the deal. Im not the type of person to go buy a superfast car and brag about it. I like to get the I dont wanna slower so i'll say not as performing as other models. The first thing i looked at was a Vr-4. But like i said, i dont want to buy a car with a turbo on it, i want to install my own. Then i looked at the sl. Now dont get me wrong i love 3000gt/stealth but the whole 4 banger thing jus dont cut it in a car as heavy as the 3000gt. So i bought the 3000gt that comes with a N.A. DOHC V6. It has exactly the power i wanted to start with.

Guys he is saying he bought the 3000GT because it doesn't have a 4 cylinder engine.

Now, i want to put a turbo on it. Not that twin turbo crap with the funky lookin twin intercoolers, but one BIG turbo that puts out a minimum of 10-15 psi.

The stock TINY turbos can do this quite easily. Don't like 2 intercoolers? Why not do a single front mount intercooler with twin turbos? If your going big, you looking for something that can put out 40-45psi without too much problem, but your going to need to raise your rev limit quite a bit to be able to use it. I think what you are looking for is a mild single turbo setup.

I was wonderin if it could be done to these engines? Me and my father own a tuning shop which installs and tunes performance parts so dont try and throw me this" U dont know what ur talkin bout" crap. Ive done my homework ladies. I jus wanna know if i can put a single turbo on this car. Yes, im already lookin for a new transmission and the ecu from a vr-4 so the car can handle the boost. ANY HELP??????

You don't know what the fuck you are talking about. You can put a turbo on anything. Why you are so set on a single I have no idea. Twins would be cheaper, and there is no reason to go single over twins other than to be different, or if you want turbos so big you cant fit 2 of them under the hood. Your also going to need more than just the ECU to run boost. But seeing as you own a performance shop and tune engines and have done your homework you know all this already.

He quotes, "Now dont get me wrong i love 3000gt/stealth but the whole 4 banger thing jus dont cut it in a car as heavy as the 3000gt." He is saying that the 4-banger does not cut it in the 3000gt. He implies that the 3/s has a 4 cylinder by saying, "it does not cut it in a car as heavy as a 3000gt" and then says, "so I bought the n/a V6 DOHC".

First off there is no I-4 in any model of 3S... you need to do more research...
Plus technically the VR4 is not heavy... A supra is about 3600lbs and Viper is at 3500 lbs and a TransaAm is 4100lbs... I can go on and on, name one car that doesn't have a I-4 in it at reasonable cost that is under 3000lbs...
I don't know why 3000GTs are the only ones who get stuck stuck with the Heavy reputation... You know the the non-turbo 3000GTs are right above 3000lbs, alot lighter than most V6 Imports.

Not to nitpick but the TA's curb weight is only 3500 (3600 for the vert).

I wont even tear apart the original post as you guys seem to have done a good job at that already.

I wont even tear apart the original post as you guys seem to have done a good job at that already.

Good god I want to. :banghead:

If this is how you do your homework you must be failing because you couldn't have possibly researched for even 5 minutes before coming here. :shakehead

I never said they had 4 cyl. engines. :screwy: I was just emplying that it is good they dont have them because they wouldnt be very effective(stock). And yes i know u can put a turbo on anything. Its jus these DOHC motors are new to me. Im more of a single cam person. And the whole single turbo thing...yes i do want to be different. If i wanted a twin turbo set up, i would have bought a VR-4. I dont. Im more of a single big turbo. And i dont doubt the stock turbos. With proper tuning and accesories, they can put out some amazing numbers. U guys are lookin at this the wrong way. I just wannna know if i should turbo charge this DOHC or trade it for a SOHC and go from there. Simple question.

Maybe you should be a bit more clear next time... No-one is going to doubt your technical abilities if you don't get defensive about it first thing.

As for the question, the SOHC has a lower compression ratios (it was close to the Turbo's) which would make it easier to tune without risking damaging the engine. But the DOHC gives you more flexibility to tune since the intake and exhaust cams are more independent of each other and it breathes better.

It depends what you are comfortable with... If you are used to tuning "more traditional" engines SOHC would be easier (2 cams, Distributor, etc)... But the DOHC gives you more flexibility, it's just less forgiving if you screw up.

You would also be the first person to ever swap a SOHC into a DOHC car....................I guess that would make you different, a little retarded, but definitely different.

Bah... everyone at some point was young and stupid enough to be too hard-headed to want to do things the easy way (why single turbo when twin is easier).

Problem is that we don't know if he "wants to learn" or just "wants to go fast". If he wants to learn he's pick the DOHC anyways... If he wants to go fast, he might as well pick something that is less likely to blow up.

It is pretty hard to blow up something that you wont be able to get running. So I guess you do have a point there. But as far as wanting to go fast............

But as far as wanting to go fast............

Touche! You got me there.

I just wannna know if i should turbo charge this DOHC or trade it for a SOHC and go from there. Simple question.

Wow I did not get that from the first post at all, maybe I just didn't read it right (though I tried 3-4 times). Me personally, I would stick with the DOHC, just for the easier tuning factor.

I never said they had 4 cyl. engines. :screwy: I was just emplying that it is good they dont have them because they wouldnt be very effective(stock). And yes i know u can put a turbo on anything. Its jus these DOHC motors are new to me. Im more of a single cam person. And the whole single turbo thing...yes i do want to be different. If i wanted a twin turbo set up, i would have bought a VR-4. I dont. Im more of a single big turbo. And i dont doubt the stock turbos. With proper tuning and accesories, they can put out some amazing numbers. U guys are lookin at this the wrong way. I just wannna know if i should turbo charge this DOHC or trade it for a SOHC and go from there. Simple question.


Have you ever thought about just buying a vr-4 to begin with, take the twin turbos off, sell them, and put a single on instead? Many have done it before. You will still have the same amount of work ahead of you as you would with the DOHC non-turbo, plus you would already have an engine thats proven to hold 30+ PSI (instead of having one where you really can't run anymore than 10 PSI) and you would have the stronger tranny, and on top of it, you would have AWD.

And FYI, i'm assuming your used to american cars talking about SOHC since most american cars are. Engines with DOHC heads make more power than equivalent blocks with SOHC heads. The difference between the DOHC N/A and SOHC N/A is 60 hp.