Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Lighter valve springs

jamesqf · 02-01-2009, 01:46 PM

I suppose "too light" would be when the springs don't exert enough force to shut the valve completely before the next stroke. If for instance the intake valve isn't closed when the compression stroke starts, it'd shove some of the fuel/air back out the intake...

02-01-2009, 01:46 PM	#2 (permalink)
jamesqf Master EcoModder Join Date: Jun 2008 Location: Earth Posts: 5,209 Thanks: 225 Thanked 811 Times in 594 Posts	I suppose "too light" would be when the springs don't exert enough force to shut the valve completely before the next stroke. If for instance the intake valve isn't closed when the compression stroke starts, it'd shove some of the fuel/air back out the intake...