Where should my base timing be?
Thread Starter
Pro
Joined: Dec 2001
Posts: 715
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From: NYC NY
Where should my base timing be?
It won't run at all at the stock setting of 6 degrees BTDC. My mechanic seems to think more along the lines of 20-30 degrees. Do I just crank it until it idles? How do I figure this out? I tried calling comp cams, but they are all done for the day. What do you guys think?
Cam specs: 280/288, 230/236 @.050, .544/.555 lift
Cam specs: 280/288, 230/236 @.050, .544/.555 lift
Drifting
Joined: Mar 2001
Posts: 1,636
Likes: 3
From: Lafayette IN
Re: Where should my base timing be? (C4-Wolf)
If you set base timing to 30 degrees, pray that your knock sensor works :eek:
Remember that when you set initial timing, there is a connector that needs to be disconnected (timing bypass wire by the brake booster-tan and black wire I think). Set that stock to 6 degrees, no more than 10 really considering you might want a little more initial advance because of the camshaft and how it fills the cyls.
When you plug that bypass connector back together, timing will now advance from the 6 degrees based on the computer program. That's how you should start off doing it. Clear the code 42 after you set the timing by disconnecting the negative bat cable for about 20 seconds.
Remember that when you set initial timing, there is a connector that needs to be disconnected (timing bypass wire by the brake booster-tan and black wire I think). Set that stock to 6 degrees, no more than 10 really considering you might want a little more initial advance because of the camshaft and how it fills the cyls.
When you plug that bypass connector back together, timing will now advance from the 6 degrees based on the computer program. That's how you should start off doing it. Clear the code 42 after you set the timing by disconnecting the negative bat cable for about 20 seconds.
Thread Starter
Pro
Joined: Dec 2001
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From: NYC NY
Re: Where should my base timing be? (HighHopes85)
I have found out that it should be set near 6 degrees base timing, but I have had a mother of a time finding the EST wire. It is by the brake booster though?
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Melting Slicks
Joined: Aug 2001
Posts: 2,516
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From: Lockport NY
Re: (scorp508)
It is a single brown wire that has a round connector on it.
I just timed mine again today (followup on the dist gear inspection mandated by Mr. Scorp508's gear disaster) after driving it a couple days with an "eyeball" timing setting...It was 10* BTDC...Ran much rougher than usual...Putting it back to 6* made it run much smoother...
It also idled ~200 - 300rpm higher at 10* than 6*...Don't know what that was all about... :crazy:
[Modified by Rich B., 7:26 PM 5/11/2002]
