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While I'm at it - lightening the flywheel 120-130

posted by  Marco69 on  Mon Aug 9 05:54 CST 2010
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last visit: Thu May 24 15:32 CST 2012
[RELATED]

Hey Tom,

Lightweight flywheels do help rev faster as they remove rotational mass from the engine, however, they also remove momentum from the engine. If you have a stock engine (or mostly stock), then just resurface/balance the flywheel is best. If you're modifying and for example want to take advantage of your headwork and cams, then yes, a flywheel can help there. In short, lightened flywheels on stock engines tend to bog on take offs and not much is gain on top either – overall, drivability is adversely impacted. Again, a great idea (when done right) on modified engines.
If you decide to go lightweight, I would suggest that you just have the stock one lightened by a decent shop if you're going for performance. Most companies charge you $300+ for a lightweight flywheel and the gains are negligible. Rebuilt SUs, Cams and headwork are a lot more important and should be done first...

Cheers,
Marco






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