ignition timing for group b cams
 

Hi, have been slowly working on an 1977 3.0 930 engine. I came across some used group b cams ground by web cams in nice shape and installed them. Anybody out there know the ignition timing specs for these cams? Thanks john

Call web cam and the secretary will send you a spec sheet.
Bruce

Ignition timing or cam timing?

Ignition timing, will try web cams. I have the duration intake is 233degress exhaust is 220 degrees.

Ignition timing is a function of compression ratio(cylinder pressure), combustion chamber size, peak torque RPM and mixture...

Web-Cam will not be able to help...they can only provide cam timing specs...Are you sure you don't mean " What intake lift dimension at TDC overlap does this cam require" ?