Velocity10gear
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So I have a vortech v7 ysi 8 rib kit on my '20 gt pp1. its running a 3.25 griptec pulley and the current engine mods are MMR Billet Oil Pump Gears and crank sprocket as well as NGK 6510 spark plugs. ID1050x injectors and a Sai Li fuel system. On the stock 3.6 vortech pulley and an e85 Lund tune it put down 778hp to the wheel. Now, after installing the 3.25 griptec pulley, it put down 808hp. I recently had codes thrown to change the upstream and downstream driver side O2 sensors, and i dyno'd the 808hp while still having that issue. It was recommended that I change those sensors before sending data logs to Lund, since they deal with fueling. I changed those and now there are no codes. I still plan on sending data logs to lund, but does anyone have any idea of what is causing the lack of power? My builder even mentioned that those were pretty low numbers considering i should be building about 16-18psi boost with the current pulley. Im just a bit confused and bummed out. Looking to see what the issue is
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