The Ford Barn - View Single Post - When going for SCAT crank should you lighten flywheel? If so, how much?

Jim Brierley · 02-25-2020, 12:10 PM

Yes, most of us lighten them by machining them for a V8 clutch and removing some metal from the back side of the wheel, resulting in a wheel that weighs 35-37 lbs. The last couple that I had done I had machined for a diaphragm clutch because they are much smoother. A lot of guys think the flywheel must mate-up with the crank weight. The two are very stupid and one does not know what the other weighs or is doing. Lighter weight will give you faster acceleration, and deceleration but the horsepower does not change.

02-25-2020, 12:10 PM	#2
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,088	Re: When going for SCAT crank should you lighten flywheel? If so, how much? Yes, most of us lighten them by machining them for a V8 clutch and removing some metal from the back side of the wheel, resulting in a wheel that weighs 35-37 lbs. The last couple that I had done I had machined for a diaphragm clutch because they are much smoother. A lot of guys think the flywheel must mate-up with the crank weight. The two are very stupid and one does not know what the other weighs or is doing. Lighter weight will give you faster acceleration, and deceleration but the horsepower does not change.