370z GTM Stage 2 twin turbo Stock block

Reality · 03-14-2012, 04:28 PM

Quote:

Originally Posted by esfourteen

reducing rotational mass in the drivetrain frees up power, your engine doesn't make more power but the end result is more power is transferred to the wheels.

The major issue with the pulleys is that they are aluminum and our crank is steel, they are basically welding themselves together via galvanic corrosion over time.

I would say that it results in the power getting to the ground "easier". I did not make any legitimate power.
I did 3 back-to-back baselines, Installed Pulleys and Made 3 more runs... No real life gains.
Same dyno, same day (within a few hours).

I totally agree with the crank pulleys fusing.. I know of this happening to 2 local z owners who were both boosted.

A note for FI z owners, would be to read up on harmonic dampeners when considering crank pulley replacement...
-Or engine go boom!

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