Ski-Doo clutch on an Alpha! Whuuuuuut????

[IDspud]

Depends whether you’re drag racing on ice so quick is all that matters or need flywheel weight for torque to push a 3” 174 full of snow up a hill.

 

[IDspud]

Not necessarily which is better as what are you trying to accomplish.

 

[PSI 800]

Makes sense. Thanks

 

[summ8rmk]

just curious about why heavier is better when Indy dan and other companies are offering to machine your clutches to make them lighter and you can also buy lighter clutch faces. I know a lighter clutch will spin quicker, so isn't that better than a heavier clutch that will spin slower?

Indy Dan prefers a heavier clutch.
He makes heavy covers for both Polaris and Cat.

Sent it

 

[Reeb]

just curious about why heavier is better when Indy dan and other companies are offering to machine your clutches to make them lighter and you can also buy lighter clutch faces. I know a lighter clutch will spin quicker, so isn't that better than a heavier clutch that will spin slower?

It's more to do with the harmonic balances of each engine. In some cases the PTO bearing is doubled up or strong enough to stabilize a lighter clutch. Hence the clutch covers and machining, and ti bolts etc.
Sometimes that's not the case. A early Liberty 800 engine with the PTO bearing update responds well to a lighter clutch(P-85 is already lighter that the rest) and you'll see longer reliability.
Try that on a Rotax 800 and the crank will come out of phase quite quickly(with the same lightened P-85) resulting in more wear, tear, and money spent maintaining.