LB9 Timing question
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Joined: Aug 2005
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From: Hotlanta, GA--- Home of the Bandit!
Car: '89 5spd GTA
Engine: 305(LB9) TPI
Transmission: T-5
Axle/Gears: Borg-Warner 3.42
LB9 Timing question
Thinking of adjusting my timing and need some advice. All of the current mods are listed in my sig and I do not have any software to view the ecm, but can I adjust the timing via the dist cap and make a positve difference in power? If so, approxiametely how much and to what degree?
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Typically. Disconnect the ECM wire, start engine, with engine at idle determine current "base" timing. Adjust it 2 degrees more advanced, reconnect ECM wire, see how it runs. Advance it again 2 more degrees, see how it runs. When it gets worse with more advance, back it down to where it was better.
Thread Starter
Member
Joined: Aug 2005
Posts: 293
Likes: 0
From: Hotlanta, GA--- Home of the Bandit!
Car: '89 5spd GTA
Engine: 305(LB9) TPI
Transmission: T-5
Axle/Gears: Borg-Warner 3.42
Thanks five 7,
It may sound stupid, but which ecm connector? The one at the battery?
It may sound stupid, but which ecm connector? The one at the battery?
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