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MS4 Cam

This is a discussion on MS4 Cam within the Internal Engine forums, part of the LSx Technical Help Section category; Originally Posted by SSwt00SS why would you have a dyno sheet that does not have the RPM on the bottom... ...

  1. #21
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    Mar 2007
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    NC
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    NBM
    1998Z28

    Quote Originally Posted by SSwt00SS View Post
    why would you have a dyno sheet that does not have the RPM on the bottom...

    why would it show MPH instead?

    you say great power across the power band, but where does it really kick it? 3000rpm, 3500rpm? what's your redline, stock, raised? not showing RPM makes the sheet very decieving...im not saying im questioning your numbers, but rather why the tuner would choose that route over showing RPM...

    this is how one should look...(Comp 224, Heads, LT's, FAST90)...
    Click for full size
    Thats just the parameter the tuner choose to look at. Hp/Torque always cross at 5250 so figure from there. I will email the shop and ask for the dyno sheet with the parameters at the bottom set to RPM for your enjoyment. Your car made some decent power for a small camed M6 with a Fast 90/90 setup though. My small stall 32-3400 is enough to let the cam rev well into its operating range. It has enough torque to light 315/35/17 BFG Drs at will. They say a A4 with a stall convertor absorbs anywhere from .15 to .20 of your power so multiply my Zs #s by 1.15 to 1.20 to get a M6 conversion factor. I've been told I can pick up 35 to 40 hp more if I go Fast 90 but I'm waiting on the new Weiand manifold before I buy.
    Last edited by PFM; 11-29-2007 at 01:10 PM. Reason: add

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