Originally posted by shamun:
...for every pound of rotational weight that is reduced, there is an increase of 2.7 HP. Is my assumption correct?
I've never heard that specific stat. It would make sense that by replacing your stock (heavy) flywheel with something lighter, you would see some nice gains. I'm not sure about 15HP. That sounds like quite a bit.
The thing about replacing your crank pulley is that it slows everything down. That frees up alot of wasted energy at high rpms plus it is easier to get your accesoories moving at low rpms. It is probably the equivalent of reducing your rotational mass by a couple/few pounds.
If anyone has dyno readings of a before/after with a lightened flywheel, please speak up! 
BP
Ben ---'96 Contour GL * Zetec ATX * Tan on Black steelies---
+++JRSC M62 Under Construction+++
My big-a$$ mod list. 
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