Z&I:
I had almost identical results with the Si and cogs (34T/30T) on my HR. Mine was making 450hp/375tq on a mustang dyno. It made 15 psi by 6700 RPMs and held 15 psi (belt slip) to redline. It broke a rod shortly after on the dyno. After building the motor, my next step was to either try to run a 34T/28T cog setup, or swap to the Ti trim. Then experiment with IAT sensor in Intake manifold, move MAFs, cut core support and install a larger filter as close as possible to the inlet.
__________________
Jtranbuilt '08 Z [Jtran PT7075 Single - Fujitsubo - Transgo - Wilwood - TE37SL - BC Racing]
|