Monday, October 11, 2010

99 Vette D1SC 402 Cranks Out 688 RWHP on E85 runs nines at the track!

Matt has been a customer of ours for some time now. Several years ago we installed an ATI D1SC Procharger on his otherwise stock setup other than headers exhaust and high stall converter. It cranked out 515 RWHP with the stock converter and 490 RWHP with built trans, high stall converter and 9 psi boost. The all stock engine ran 11.20's at 124 MPH back then. Over the past several months he's installed a built 9 to 1 CR 402 and brought it to Jim for tuning, several mechanical/electrical issues, and debugging. When it arrived it would hardly run and sounded like a prostock at idle. Jim spent several days working out the mechanical/electrical issues and then kinks in the tune. He had the car idling with just a "slight lope" at idle(quite a feat considering how healthy the cam used was) and silky smooth driveability from off idle through redline! It cranked out 622 RWHP on 93 octane fuel with meth injection. Then s few weeks ago the old alky kit started acting up so Matt contacted Jim for a better solution. Jim told him that he has made tremendous gains on E85 fuel and optimized tune. Matt gave Jim the nod and the vette was upgraded from 60 lb injectors to a set of 80 lb injectors then revamped/optimized tune via HP Tuners software. After several days of tweaking the car made 688 RWHP with just 10 psi boost! When Matt picked up the car, Jim told him it was a handful on the street, that the car would go nines in the quarter but that it would probably need slicks to get the power to the ground. Matt's a veteran racer and based on the dyno numbers and fully loaded weight of Vette he agreed. On Tuesday Oct 5th Matt took it to Gateway International Raceway and found the track to really be hooking up. On his full out pass the Vette ran 1.66 60 ft 9.95 sec at 142.34 MPH in 1/4 mile on DRAG RADIALS! Congrats Matt! Check out the dyno pull and quarter mile pass below:



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