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01-06-2003, 12:29 AM | #1 |
2 Stangs in the Stable
Join Date: Apr 2002
Location: Baytown, TX
Posts: 1,209
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Timing Question
I set have been playing with my timing at the track and noticed something strange. No matter what I set my bast timing at, when I plug the spout connector back in, it always goes up to 22*. I even set it at 20* base to see what would happen and got the same results. Is this normal? If so, what is the point of changing your base timing if the total goes to the same place no matter what? I am just curious. Thanks for the answers.
Caymon
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'90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128 |
01-06-2003, 01:52 AM | #2 | |
cranky old man
Join Date: Sep 2001
Location: Longview Texas
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Re: Timing Question
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01-06-2003, 02:42 AM | #3 |
Registered Member
Join Date: Apr 2002
Location: Atlanta, GA
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All that means is you have too much advance. The computer is limiting total advance based on some percevied detonation in the curve.
I think. I know my car will reset itself if I overadvance the timing, but I don't even have a distributor. What happens to total advance if you leave it the SPOUT off? Also, try setting your timing by using total advance rather than base, and see what happens.
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01-06-2003, 11:39 AM | #4 |
motors done......woohooo
Join Date: Mar 2002
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duece is right, total timing is what matters. when you advance base timing, your going to end up "around" where you want to be. but if you want to do it right go by your total timing
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01-06-2003, 12:30 PM | #5 |
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Join Date: Sep 2002
Location: southeast texas
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Yeah what he said (sn95gt).......ive heard of guys leaving the spout out and bolting the timming down to 34 deg...some people said great results at track(track only of course) but I talked with Dom(an EEC-Brain) over at Rff Performance and he said that, that would do no good.
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01-06-2003, 01:31 PM | #6 | |
cranky old man
Join Date: Sep 2001
Location: Longview Texas
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01-06-2003, 07:54 PM | #7 |
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Join Date: Mar 1999
Location: Ventura, California
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You are very close. The ECM is permitted to advance the timing x amount of degrees above base. The higher you set the base, the higher the advance will become upon acceleration. At idle, the ECM places the timing at the point where the feedback it get's from the barious sensors is in line with what it's programmed to be. It doesn't know that idle is usually 22 degrees, because it may not be. Higher elevations weather, etc. can all factor in to it. But, as you accelerate, it will advance the timing to it's programmed limit above base. So, if you set the base 4 degrees higher than it normally is at, then it will advance 4 degrees farther than it normally would.
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01-07-2003, 02:10 AM | #8 | |
cranky old man
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