CAM Regrinds are back - ZR-1 Net Registry Forums

XfireZ51 · 03-27-2011

What works for me is to think of it as the ratio between base circle height v lobe height. If the base circle represents where the valve is closed, then the valve begins opening sooner, open longer and deeper with the regrind. The center of the base circle is moved closer towards the tip of the lobe. Having just had a larger intake installed, I can tell you it changes the bass note of the idle. You won't be balancing a nickel on the plenum anytime soon.

03-27-2011	#11
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,709	Re: CAM Regrinds are back What works for me is to think of it as the ratio between base circle height v lobe height. If the base circle represents where the valve is closed, then the valve begins opening sooner, open longer and deeper with the regrind. The center of the base circle is moved closer towards the tip of the lobe. Having just had a larger intake installed, I can tell you it changes the bass note of the idle. You won't be balancing a nickel on the plenum anytime soon. Last edited by XfireZ51; 03-27-2011 at 11:52 AM.