Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Do lightweight flywheels make much difference?

steffen707 · 06-10-2010, 11:43 PM

Well I have finally found a donor EK civic hatch with AC to swap my VX motor into. I have a fidanza 7lb flywheel from an old crx drag car i could use, or buy a stock 16-18lb flywheel. I was wondering if anybody else has experimented with this? I know it makes drivability much more difficult from stops, but if it makes a big gain in mpg it might be worth it "for me". I know it will reduce drag on the engine and that has to help efficiency but to what extent?

Please post any results you have found personally or have found from others.

06-10-2010, 11:43 PM	#1 (permalink)
steffen707 Master EcoModder Join Date: Oct 2009 Location: Midwest Posts: 337 Thanks: 4 Thanked 37 Times in 21 Posts	Do lightweight flywheels make much difference? Well I have finally found a donor EK civic hatch with AC to swap my VX motor into. I have a fidanza 7lb flywheel from an old crx drag car i could use, or buy a stock 16-18lb flywheel. I was wondering if anybody else has experimented with this? I know it makes drivability much more difficult from stops, but if it makes a big gain in mpg it might be worth it "for me". I know it will reduce drag on the engine and that has to help efficiency but to what extent? Please post any results you have found personally or have found from others.