How much HP is the Stock Flywheel Good For?
#5
FWIW when I took my stock FW to a machine shop for balance (neutral) The guy asked when I picked it up if I "spin it high RPM"....His opinion of it was not good.
Said the metal is low grade and when he ground down the cast in weight...no sparks, just dust.
This was a LT1 factory FW.
So as noted it really comes down to use and running a aggressive clutch disc and high RPM clutch dumps, especially if running a tire, is beyond what the FW was engineered for...IMHO
I have a SFI billet FW with my twin disc clutch now.
With all this said I have not heard of a factory FW exploding....but that does not mean it has not happened in higher HP aggressive use conditions...YMMV
Said the metal is low grade and when he ground down the cast in weight...no sparks, just dust.
This was a LT1 factory FW.
So as noted it really comes down to use and running a aggressive clutch disc and high RPM clutch dumps, especially if running a tire, is beyond what the FW was engineered for...IMHO
I have a SFI billet FW with my twin disc clutch now.
With all this said I have not heard of a factory FW exploding....but that does not mean it has not happened in higher HP aggressive use conditions...YMMV
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#8
TECH Apprentice
Its all about the wear capacity of the stock flywheel with more aggressive clutch disc materials. Billet steel instead of cast iron will hold up better against performance type disc. You also have less chances of the pressure plate bolt threads pulling out of the flywheel under strong centrifugal forces.