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Registered
Join Date: Aug 2008
Location: central new york
Posts: 44
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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
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08-01-2018, 09:07 AM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,520
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Call web cam and the secretary will send you a spec sheet.
Bruce |
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08-01-2018, 12:36 PM
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Registered
Join Date: Jan 2003
Location: Langley,B.C.
Posts: 12,030
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Ignition timing or cam timing?
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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08-02-2018, 08:23 PM
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Registered
Join Date: Aug 2008
Location: central new york
Posts: 44
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Ignition timing, will try web cams. I have the duration intake is 233degress exhaust is 220 degrees.
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08-03-2018, 08:12 PM
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Join Date: Jun 2003
Location: Camarillo, Ca.
Posts: 2,418
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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" ?
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Aaron.  F.S. 1965 Solex engine w carbs/cleanerBurnham Performance https://www.instagram.com/burnhamperformance/ |
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08-04-2018, 08:22 AM
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