Turbo V6 1991 Camaro Project

C2YT

C2YT

Forum Member
Hey guys, I was on here a few months ago with my 1992 project and sort of forgot to check back in. Well, I have been very busy lately with my other project. As the title says, it is a 1991 Camaro RS 3.1l/700r4 car. Here is a little breakdown of what is planned/accomplished.

- Pull Engine / Trans
- Cleanup/teardown engine
- Re-gasket engine
- Replace stock 700r4 with one from my buddy w/ vette servo, boost valves, intermediate valves.
- Fabricate log-style headers
- Install engine / trans
- Mock up piping and intercooler
- Other odds and ends


Everything is pretty straight-forward. This is a budget build, nothing spectacular. Just making the junk I have work a little better. I will update this as I go, thanks! Here are some pictures:
Camaro Picture.jpg
image_c9b6fe8ab88c14a6e6fcddf9ada2d51f26c33aea.jpeg


As of right now the engine and transmission are out. I am tearing down the engine and installing my Delta 260 cam and lifter set. After that, everything is going back together and I will start to work on the log headers.
 
Thanks guys! The engine ran fantastic before I pulled it. I have had the car for the last 2 years and never once had a problem with it. Pulled off the valve covers/intake and it looks great also. Just going to re-do the head gaskets for peace of mind. My dad and I did the bodywork and then painted it single stage. I really enjoy detailing and I always keep the car looking it's best.

Denny, it is an ebay gt3582r turbo. Probably going to be looking for a name brand this summer after I get everything dialed in and get comfortable with tuning. My buddy (another turbo v6 guy) is helping me tune the car and also give me advice. I am basically replicating his initial build. Now he has a 3.1l hybrid with a 3100 top end and some other goodies.
 
One of our long time members Jim (TTA) has a 91 Z28 with a 1989 Turbo Trans Am (3.8 Grand National) drivetrain swap that looks like the factory did it.
 
I figure it is update time:

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Car runs pretty good, very happy with it. Probably makes somewhere around 240-250 whp at 10 psi. Better than the factor rating of 140 at the crank.

Did the math and I only have $1216 in the whole setup with everything from the tuning equipment down the the air filter. Fabricated and tuned the car myself. The setup can be bolted onto a 2.8, 3.1, 3.4, 3100, 3400, or even a 3500 engine if I wanted to. Still have to put the new rear end in, 98-02 front brakes, and some other odds and ends. 1,000 miles down on the new setup and not one hiccup.


Future goal would be somewhere in the 350-400 horsepower range. It is pretty achievable with a hybrid engine (3.1/3100 combo) or even a full 3500 swap.
 
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I can get some pictures soon, it is a stock manifold on the drivers side with a log header on the passengers. The bolt holes are notched on the log header and can accommodate for the aluminum heads. As for the manifold I can switch it out for the stock fwd manifold (of course with a little modification, as I did not notch anything).

Thank you for the compliment, I have taken a lot of pride in doing it all myself. Anymore questions just ask, I love to share about the build.
 
Thank you! It runs pretty good, I'm happy with what I have put into it. Its nothing crazy, and my butt dyno isn't very accurate, but it feels strong and pulls hard. Having a little issue with keeping my desired boost (wastegate hits and drops from 10 to 6/7 and the car falls on its face) but it pulls hard otherwise. I have new 48lb injectors to install this week since i'm at 83% duty cycle at 10 psi on 36lb injectors. I have been wrapping a Porsche 996 this week so I haven't had much time to myself. As you can see by the time stamp, its 4 am..
 
Bump... haha

Got the pile of junk out this last week to install weight jacks and some other goodies.
 
Thanks man! I just installed some Ground Control weight jacks along with the LS1 front brake upgrade. The car also has a 98' rear end so it now has all LS1 brakes.

Can't wait to get it on the ground and see the new right height with my e38 M-Parallel wheels. Should look like a totally different car!


Hoping it grows a few cylinders by next spring. Haha
 
Well here is the pile of junk in all it's glory.

Slammed on Ground Control Weight Jacks, e38 BMW Wheels 18x8 et13 front and 18x95 et25 rear, LS1 Front Brake Upgrade from Big Brake Upgrade. Car is still a turbo 3.1l and needs to be re-tuned desprately. To bad my laptop decided it wanted to die on me a few weeks ago.

Put about 60 miles on it this weekend just screwing around. Car still held together, made cool boost noises (forgot what it sounded like.. haha). Can't be any more happy! Need to wheel it out here soon and re-tune it. Currently runs on $59 which is a modified version of $58 for the boosted 4.3 trucks.

Unfortunately my uploader is not working, but here is a current picture: http://www.imgur.com/a/AKrF4
 
Well the car has been a lot of fun and a great learning experience, but it is time to take it to the next level. Going with a turbo 4.8l/4l60e combo. Should be a fun build!
 
Those wheels look sweet on there! And I don't blame you on the going to the next level with an LS. If you can't beat em, join em lol :lol:
 
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