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4.6 vortec V8 Turbo Grand National

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Old 12-17-2008, 08:04 PM
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Default 4.6 vortec V8 Turbo Grand National

I have been reading a ton about the turbo set ups you guys are doing.....


I bought a 2003 4.8 chevy truck motor, wiring, ECU, all the asseseries, and trans today. I am planning to put this in a grand national. I want to do a turbo set up also. the faburcation wont be a problem. I am looking for advice on the turbo, injector, how to control and tune the stock computer from the truck. I tuning is going to be the biggest hurdle for me.

Here is a link to the plans pictures and progress so far: http://www.turbobuick.com/forums/tur...-motor-gn.html

all advice is welcome
Old 12-18-2008, 09:00 PM
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Can anyone reccomend a good tuner in the Birmingham AL area? I am new to EFI tunning. I am building this to be a street car and want it safe.
Old 12-19-2008, 12:10 AM
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Cool project, but you are probably going to find more tuning advice for that setup on a truck forum. Also check at turbomustangs.com - they have a lot of info over there and, contrary to the name, have a lot of non-mustang folks.

Jim
Old 12-19-2008, 06:42 AM
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There is a guy on here that has already done what you are trying to do. He has a 6.0/4l80e in a GN. You will have problems if you are going to try and keep the a/c. Hopefully he will chime in here.
Old 12-19-2008, 07:31 AM
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try here

http://www.turbobuick.com/forums/turbo-v8-conversions/



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