4eyedfreak

Do I really want a lighter flywheel? Is a 28oz flywheel really better than my stck flywheel or a 50oz flywheel for that matter? I am asking because i really only see it making a very little difference...

angcobra

the 28 or 50 ounce you are talking about is the amount of imbalance for the engine. If you have a 28 you must stick with 28, if you have 50 you must stick with 50. The only way to change the imbalance is done with the crankshaft.
For a lighter flywheel they are talking about the overall weight (not the imbalance). Yes there are some advantages of lighter flywheel, anytime you can reduce the spinning weight the engine can rev faster.

88BlueGT

^^^ True.

4eyedfreak

would i have to change the crank shaft to get the proper inbalance needed for a 28 oz flywheel?

90GTRagtop

Do you understand what angcobra said? 28oz and 50oz do not refer to the flywheel weight. They refer to the weight difference on one side of the flywheel versus the other side. That is the imbalance on the flywheel that's required to offset the imbalance in your crankshaft thus balancing the overall system. If you get a flywheel that is of lower weight than your current one, it will still have to be a 50oz flywheel, but it can be of a lower overall weight.

Edit: Correction, everywhere I said flywheel above should say harmonic balancer. The weights you are quoting are imbalances for the harmonic balancer. The flywheel of course is balanced. [sm=headbang.gif] Duuuhhhh, I'll go sit in my corner now....

frop

Flywheels can have an imbalance too, and with an externally balanced engine (ours), both ends of the crank need an imbalance.

Also, an ultralight flywheel can and will kill driveability. It makes it harder to get the car going, though it does improve acceleration.

It's a tradeoff that you have to decide on.