I just got a stock turbo for free from a Grand national.
Trying to find out how to use this thing.I already posted in the Forced induction, but not alot of ppl in there.

even if this is a small turbo it has to be better than nothing right?
Now i might but just dirt dumb but i was thinking. Upgrade my pump and Inj. first (going to do this anyways
run a fabbed pipe from my stock manifolds to the turbo.
then from the turbo back to the hooker exhaust sys.
then i have to run a oil line to it right? cant be that hard right?
then run the turbo to MAS and into the intake.
should take me about $100 for the tubing (made by a friend)
and about 5 hours to install
i think the stock turbo had 9Psi. This should be worth a good amout of HP right?

 

you want to turbo charge an LT1? I believe the stock internals can only take about 6PSI of boost MAX....going any higher requires forged internals and lower compression ratio.

 

Not as easy as just slapping a turbo on. Computer is probably going to go a little crazy and start correcting for stuff and you will probably be hurting yourself. I can't get much more technical on turbocharging since I have no experience but alot more guys supercharge rather than turbocharge for some reason. Just do some more research and keep asking people...you will eventually get some answers.

 

so i turn the boost presure to lets say 5psi...what kind of gains will that give me?
as far as the computer goes ill get it reprogramed.

 

so if this turbo isnt any good, what is a good turbo for my car?

 

Its alot more complicated then it looks. My friend has a 91 2.2l spirit rt running 25psi on a t70 and just looking in the engine bay makes me dizzy.

 

You need a turbo that can supply the right volume of air for a 350cid engine. If you really think you can do this, then just do it. You'll find out that it's not as easy as you may think.

 

like has been said before its not what psi it can turn out. its what psi it can turn on what engine at what rpm. you need to pic a turbo with the proper "island" besides that the stock lt1 cam timing and design sucks really bad for a turbo. a turbo isnt a supercharger a turbo requires a whole engine combo in order to work properly. as for the cost thing... i can buy turbo's all day long dirt cheap that are brand new, the turbo is often the cheapest piece of the whole setup. and a proper setup cam wise will probably tend to screw you on hydrocarbons if you have emmissions, and burn down your exhuast system (no turbo lag though ). next to that tuning is a royal pita on a turbo engine because its not so rpm dependant. just a few things to chew on before you decide its just that easy.

 

They're all correct in saying that it will do nothing but cause you problems. The stock GN T4 turbine housing will be a major restriction in the exaust, causing alot of back pressure and not very much power. If you're going to do it, controlling the boost to 5 psi will be a major problem as the T4 internal wastegate will really have it's hands full getting rid of that much exhaust. You'll probably get alot of boost at low RPM and alot of torque, high rpm power will really really suck. That's if the T4 compressor can develop enough airflow to even build boost without overspeeding it and turning it into a grenade!

Install in 5 hours? Not hardly.

Now 2 GN T4's might be a different story. Probably easier to install too without all the extra exhaust routing. I haven't looked at any T4 maps but it might work okay. Getting the rest of the engine to work with the boost will be another matter entirely.

Trace

 

I originally had a Turbo Tech kit and opted to trade it for a blower... Putting a turbo on a car that was not built for it is a grand task... You are going to do anything big without an aftermarket PCM (FAST). Also, routing the tubing, building a header, all that stuff is complicated and expensive. PLUS that small of a turbo won't do you any good for all the work you will put into getting it to work. Try a T-76

 

If you ran a "small" turbo like a small T3 (check your AR numbers also), then you may run it off 2 cylinders only, instead of 4. This means basically your going to be fabbing a custom header though, not worth the pain, but thats all subjective.

 

it can be done. There are many junkyard turbo sites out there with people that have done similar things, however there are a few things missing in your equation:

The headers are not going to be able to handle a turbo. The turbo will cause the headers to get REALLY hot and will damage them in short order, which is why turbo headers are designed extra thick and sturdy. There is a site out there on how to make your own turbo header, which would be loads of fun in our engine bays Also simply mounting it on the end of the exhaust header is not going to do anything but burn up the bottom of your car, you need to give that sucker some room, or a crapload of heat shielding (and DON'T mount it under the car, if something frags it its gonna send metal through your engine)

Most EFI cars that come with Turbo's also have boost sensing hardware or at least a fuel management unit that can increase fuel pressure with boost. GN's will bump 1psi of fuel for 1psi of boost.

gonna need to upgrade the fuel system most likely...a weak fuel system and a turbo is a recipe for disaster (ask any GN/TR guy)

you will need a decent wastegate to get rid of the extra pressure. The stock one is sometimes barely large enough to handle the stock turbo

Check some of the sites, it can be done but its more than just fabbing some pipe to connect the turbo up.