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View Full Version : My 68 Chevelle LS1 Turbo Build

4cefed
10-25-2022, 03:23 PM
I bought this car about 6 or 7 years ago, it was a running complete grandma 6cyl car with blue interior. I slowly started gathering bits and pieces and started to build it. It sat most of that time, picking at it here and there until I got some help thrashing these last few months to get it on the road. Between running two businesses and being a full time single dad of a 5 year old daughter, needless to say I dont have much spare time.

Car was completely frame offed, everything powdercoated, painted or thermal coated. I plan on having the car painted next year, ripping out the cheap seats and putting in something nice and overall just tweaking things as I go. I have about 100 miles on the car now, it runs and drives really well.

Made 500hp and 480tq at the tire on 8psi, I plan on dropping down to an 18" wheel all the way around with some more tire in the back, something really sticky. It doesnt hook for **** when it rolls into boost.

I was making a fraction of the money I do now when I started this project so I definitely wouldve done alot of stuff different but I've got two more projects lined up now that should be pretty slick when finished.

- Engine is a 2004 GTO LS1 and Tremec 6 spd. Gapped rings, studded, heavier valve springs, LS9 head gaskets but otherwise stock.
- Single 72mm Turbocharger
- 60lb Injectors
- 44mm Wastegate
- Vibrant Intercooler
- Plumbing, Exhaust and All Fab done by me
- Quick Performance 9"
- Viking Coilvovers
- Wilwood brakes all the way around w/ electric park brake
- Dakota Digital Cluster
- Tanks Inc Fuel System
- DSE Wiper
- Vintage Air Heater
- Redhead Steering Box
- PSI Harness and Stock ECM
4cefed
10-25-2022, 03:26 PM
More pics
4cefed
10-25-2022, 03:32 PM
I ended up building two turbo kits, the first one with the cross over pipe up front I ended up scrapping.
4cefed
10-25-2022, 03:36 PM
More
4cefed
10-25-2022, 03:38 PM
Some of these are way out of order..
4cefed
10-25-2022, 03:40 PM
My old man helping me out
4cefed
10-25-2022, 03:42 PM
more
4cefed
10-25-2022, 03:46 PM
More
4cefed
10-25-2022, 03:52 PM
And one more, I think..
camcojb
10-25-2022, 05:30 PM
Very nice work!! :thumbsup:
ScotI
10-26-2022, 07:56 AM
Very nice indeed. Big difference in the two piping options (forward facing tubular headers vs the cast manifolds). Did you ultimately pick the manifolds for packaging ease?
andrewb70
10-26-2022, 08:21 AM
What kind of power did it make?

Andrew
4cefed
10-26-2022, 10:29 AM
Very nice indeed. Big difference in the two piping options (forward facing tubular headers vs the cast manifolds). Did you ultimately pick the manifolds for packaging ease?

I figured the low end response and driveability would be much nicer on the street with the manifold setup since this was going to be a low boost car for now, also the packaging was alot cleaner and made plumbing the rest a breeze.
4cefed
10-26-2022, 10:31 AM
What kind of power did it make?

Andrew

500 Wheel hp and 480ish Wheel torque.
WSSix
10-26-2022, 06:45 PM
That amount of power is a lot of fun on the street. The build looks great. Congrats!
gnx7
11-26-2022, 12:54 PM
Very nice setup! That will be a good time for sure.

For only 8psi good numbers.... it will be a blast at 15psi :) What fuel?
214Chevy
11-26-2022, 04:33 PM
Everything looks so good. Thanks for the pics.
4cefed
11-30-2022, 12:15 PM
Had a few hours to finally get a tail pipe knocked out for it, it was just dumped at the axle before and I got tired of it really quick.
ScotI
11-30-2022, 12:36 PM
Nicely done.
camcojb
11-30-2022, 12:57 PM
Had a few hours to finally get a tail pipe knocked out for it, it was just dumped at the axle before and I got tired of it really quick.

That's my plan too, exiting behind the rear tires instead of going to the rear bumper. Nice work!!