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Old 12-28-2021, 04:08 PM
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Join Date: Feb 2006
Location: Gilroy, CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
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Quote:
Originally Posted by MAStuart View Post
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
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