19Tyler74

Anyone have a turbo kit put on their Stingray?

I have been thinking about getting one for my 1974 350.

Any advice is welcome - good idea or bad idea?

Basically looking to gain HP.

Thanks!

fanmanbd

Just spent 2,500 fixing the turbo on my WRX so I'm a little bias right now. Stock equipment is enough to maintain in my opinion.

nate99

It has been done a time or two on C3's, but there are definitely no turbo kits "off the shelf" that you can bolt on. It would be complicated to say the least.

What other modifications have you done? What is your budget? If more power is your goal, for the kind of money a well sorted turbo system would cost, you can have a 383 crate engine making over 400 hp.

Read up on what other folks have done to make power and you'll get a better idea of what is the most straightforward way to make more power, but the short answer is exhaust, tuning, heads, cam intake.

Good luck.

7T1vette

You would probably do better to add some kind of supercharger or nitrous for more performance. The engine compartment on a C3 is rather tight for all the hi-temp components required for turbocharging. There are some who have removed the spare tire tub and put turbo(s) in back. That gets the heat out of the engine area, but results in some other issues to resolve.

If you have to have a turbo, have at it!!

69427

Occasionally you can still find the old Martin turbosystem setup on ebay. Despite their vintage (late 70s) the system works remarkedly well. One version was made for C3 applications, although I don't recall if the a/c system is an interference issue with that setup.

75vetteman

i was just researching these yesterday and decided i liked a supercharger better. the biggest differences are that a turbocharger is "free" horsepower as it's powered by the exhaust and a supercharger uses a belt which in turn uses horsepower already made from the engine. i think a supercharger would be easier to install as you don't need to mess with the exhaust system. i wouldn't be very happy punching holes in my headers to run a turbo

fanmanbd

I would built the engine some first.

72LS1Vette

You're probably better off going the conventional route with somoething like an Edelbrock cam/induction kit, a set of headers and a 2.5" exhaust. You could probably come close to doubling your horsepower without having to worry about anything blowing up.



Rick B.

Cab1

I saw a setup for a Vette on a TV car show about a year back. It was for a newer year though - 06 or so. It had twin turbos mounted in the back near the mufflers with returns going forward to the engine under the door sill plates. It was really something. Yanked that car around pretty good too.

75vetteman

so far 2 people have mentioned putting the turbo in the back (spare tire area) but the problem i see with that is turbo lag. wouldn't it take longer for the turbo to compress enough air to increase the pressure in the lines going to the engine?

Nobody.

I am in the process of putting twin 57mm turbos on my '81 streetcar. The motor is a 383ci with TPI and will run on E85. There is absolutely no "kit" for this. I have spent countless hours under the hood fabbing piping, oil lines, alt & power steering mounts, etc. I will post some updated pics later tonight.

Gale Banks 80'

I have a Gale Banks setup from the 80's that was made for the C3. They re introduced there SBC System about four years ago so yes there is a Kit avalable for the SBC in a C3. The Turbo's will not clear the Stock Hood but there are still Turbo hoods avalable new. One tight spot is the Master Cylinder and I think that useing a Hydra System might open that up better than mine. Be warned though, Priceing is not for the feint of heart.

Nobody.

I know when I started this project last January, I wasn't able to find any resources on a 'kit'. I made everything on my by hand. And certainly not for a twin-turbo setup. It is certainly tight under the hood, but looks like it belongs in there.

Gale Banks 80'

Some of the companys who made Kits back in the day that are still in busness probably could still supply a Kit. Turbo Engineering in Tacoma Wa is one that I can think of in addition to Banks.

427Hotrod

I'm just getting started on a twin turbo setup on my '67...all under the hood...with 555" to help cut back any turbo lag!

JIM

toddalin

No free horsepower.

It takes lots of power to spin the impeller enough to generate boost. Imagine how much power it would cost if you were spinning that impeller and generating that boost, but not putting it toward the your engine? Now add the losses by not being able to run true headers. That's how much power it actually cost to run the turbo.

toddalin

Here is a vintage Martin system. This may even be one for a Corvette.

http://www.ebay.com/itm/Vintage-Mart...item2c61a1cf00

Gale Banks 80'

True, there is no free HP. However the Turbocharger is the Closest thing that we have for a Boosted Engine. Look at most any modern Diesel Engine, and generaly most OEM boosted Engines. The Belt driven Supercharger hurts Fuel economy and kills emissions. The newest Superchargers have closed the gap however, as the new ZR-1 demonstates.

Nobody.

That's a moot point as soon as boost is made. And with the efficiency with turbos these days, if you're into forced induction, turbo charging is the way to go. My last turbo project made 774 rwph and knocked down 22mpg. Not alot of inefficiency there...

69427

The intake manifold will work on a Corvette as they're all pretty similar, but the RH manifold that mounts the turbo looks like the pickup version that orients the turbo at a angle. Lots of wheel well room in a pickup to allow the turbine outlet pipe to clear, but iffy in a Corvette. The earlier straight-mount exhaust manifold is incredibly difficult to find.