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Registered
Join Date: Feb 2005
Location: Peachtree City, GA
Posts: 101
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Ignition timing - SC cam
Does ignition timing change with different cam shafts?
I have a '75 ROW CIS pistons that I have webers on and put in SC cams. What should my timing be? |
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11-11-2013, 02:55 PM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,491
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try total advance of 30-32 degrees. that's usually safe for pump gas. you'll need an adjustable advance timing light to set full advance. set the dial at 32 and raise the rpm until it stops advancing, and at that point, Z1 on the pulley is adjusted to the TDC mark on the fan housing by turning the distributor. do it quickly so as not to hold the engine at 5K too long. may take a few times to get it right. then whatever advance it idles at is where it idles at.
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11-11-2013, 04:48 PM
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Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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if you need to change the timing, say 3 degrees, do it at idle. just mive it 3 dgrees then recheck. dont try to set it while holding the RPM';s hi
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86 930 94kmiles [_  _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
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11-12-2013, 08:05 AM
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