Ignition timing

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jimrat
E30 Zone Newbie
E30 Zone Newbie
Posts: 12
Joined: Tue Jun 28, 2011 11:00 pm

Sat Jan 30, 2016 11:12 pm

Hi

Can anyone tell me what the stock ignition timing is at idle for an m20b25.

I am running a vernier cam pulley, and I want to check I have set it correctly. Presumably I can use a timing strobe on spark lead for cylinder 1?

Cheers
Jim
ezagood
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Location: essex

Sat Jan 30, 2016 11:23 pm

ignition timing and cam timing are different
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jimrat
E30 Zone Newbie
E30 Zone Newbie
Posts: 12
Joined: Tue Jun 28, 2011 11:00 pm

Sun Jan 31, 2016 10:03 am

Hi

Yeah, realise my mistake now - ignition timing is from crank sensor, so using a strobe isn't going to tell me anything about my cam timing.

Cheers
Jim
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reggid
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Joined: Mon Jul 11, 2005 11:00 pm
Location: Oz

Mon Feb 01, 2016 2:02 am

if you set the cam timing advance retard to zero it should be the same as the OEM gear provided youve bought a quality unit with the pin in the right spot. then you adjust advance or retard. note that advancing the timing puts the inlet valve closer to the piston so tread carefully.
E30 325is with M20B31
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