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We had a great day at Cayuga yesterday! Not only did Peters car go 9's, but we also got our 2008 GMC sierra some great times. This is a completely stock long cab 4x4 with a stock 5.3 cathedral port truck motor (DOD still active) and a bolt on turbo kit that we make and tune. These runs were on pump gas - I found out at the end of the day the owner had 200lbs of tools and junk under the back seats to boot. Can't wait for the cooler weather to try for 11's before making any changes.
This truck with our turbo system makes 540whp through a 4L80, it made 230whp without the kit. Truck went 15.5 @88 MPH stock, so we picked up 3.2 seconds and 22 MPH!!!!!
Last edited by Kevin@Champion Motors; 09-08-2014 at 11:48 AM.
Very impressive! what size is the turbo and how much boost?
72mm compressor wheel, 75mm turbine. 10psi. Next time we will take all the tools out of the car, and pull the tennau cover off. 3/10's is a lot but I want 11's before adding power!
09-08-2014, 11:26 AM
Turbo Sierra runs 12.30's!
