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  1. J

    Installation of Steeda underdrive pulley affect supercharger boost?

    I recently installed a steeda underdrive pulley system on my 06' GT, how will the smaller diameter pulley afftect my supercharger boost? I have a Saleen supercharger with a 3.2 inch pulley on the supercharger, bumping the output of the supercharger to 8 lbs. What are the calculations that the...
  2. J

    Crower cam stage 2, heavy valve springs intall, any body else have problems?

    I installed stage 2 crower cams and the heavy springs they suggest with titainium keepers. Under low load (30 on the dyno) with very slight throttle, the valves start missing on both banks and if i don't give it more throttle, it will cause camshaft sensors to miss and throw error codes all over...
  3. J

    hickup

    if it still has the "miss", my dyno showed that jog at about 5200rpm and it felt like a miss like you say, my tuner said that it was the spacer plates between the intake and the heads that have a butterfly valve in them to increase tourque and fuel mileage. I can feel them open even when i am...
  4. J

    Nitrous?

    Looking for imput on nitrous systems for one, and are there any drawbacks. 06 gt 4.6, roush lowering kit, Bassani axle back exhaust