Flywheel weight?

[eschaider]

Originally Posted by MAStuart

I dont know what the ratio is. But for every pound of rotational mass you remove you will have to remove several pounds of no rotating mass to get the same effects. So take 10 pounds of bumper off you will feel no difference. Take 10 pounds off things that rotate fast....... you will feel it.

The relationship is non-linear and when you are talking about small amounts of weight that are not localized at a specific point on the flywheel the equivalency is disappointingly even smaller.

Our seat of the pants dyno can frequently mislead us and this is one of those occasions. For every individual who is positively reinforced by his light weight flywheel transition, try asking for before and after vehicle performance metrics.

I'll give you dollars to donuts there are none available. That means we are back to our 'trusty' old seat of the pants dyno and this is one of those times it is misleading us.


Ed

[1795]

I don't know Ed, my butt has always been honest with me The problem here is that everyone is trying to look at just one factor, flywheel weight, that is part of a multi-factor relationship that is not universal and includes the drivers driving style and the intended use. At best we can make generalities, and maybe, just maybe, somebody might get it half right at best.

Of course, that should not stop anyone of us from opining from afar

Glen,

The rotating assembly with the flywheel will have to be balanced and should be a matched set, i.e., if you are using a lightened crank it probably makes more sense to use a lighter flywheel, whereas a standard weight crank might work best with a heavier flywheel.

Have a happy New Year.

Jim