Quote:
Originally Posted by Dingocooke
....would like to rev it to maybe 6500; so looking for a zero/internal balanced rotating assembly that I can get properly balanced, with ally flywheel ....
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Steve - firstly the caveat - I don't necessarily know what I'm talking about.
I would talk at length to my engine builder before going with an aluminium flywheel. Reducing the mass will help an engine 'blip' easily, but won't necessarily help it rev more quickly on the road. If you are keen on big revs (go for it!), then you need the correct mass and size flywheel/clutch, and harmonic balancer, all correctly zero-balanced, to soak up the harmonics at high revs, otherwise there's more likelihood of a broken crank.
Cheers,
Glen