? about ignition timing
Thread Starter
Racer
Joined: Jun 2003
Posts: 308
Likes: 0
From: Granada Hills CA
? about ignition timing
I have an 04 with longtubes no cats, complete exhaust, vararam, 3.42 rear gears. I have the predator for tuning. The car runs very strong.
My timing is 18 degree at idle and about 37 degree when cruising. What should the timing be set at? I am not getting any knock retard but want to be at optimum timing and the adjust my fuel accordingly. Any advice would be appreciated.
My timing is 18 degree at idle and about 37 degree when cruising. What should the timing be set at? I am not getting any knock retard but want to be at optimum timing and the adjust my fuel accordingly. Any advice would be appreciated.
Burning Brakes
Joined: Jul 2002
Posts: 791
Likes: 52
What is your timing at WOT? I have a 98 TA and stock it was 28 degrees and after heads/cam it still runs best with the same timing. In fact I lost a couple of hp when I increased to 30 degrees. The later LS1's seem to have less total timing from the factory compared to the earlier years.
A general rule of thumb is you should have slightly negative LTFT's at idle (ideally 0) to help with WOT fuel delivery. I wouldn't mess with the timing at idle (unless you have a aftermarket cam) or cruise timing.
A general rule of thumb is you should have slightly negative LTFT's at idle (ideally 0) to help with WOT fuel delivery. I wouldn't mess with the timing at idle (unless you have a aftermarket cam) or cruise timing.
Last edited by BLKTA; Nov 24, 2004 at 11:43 PM.
Thread Starter
Racer
Joined: Jun 2003
Posts: 308
Likes: 0
From: Granada Hills CA
I dont know what my WOT timings is, but above 5k it does not pull that hard. Had a 01 that pulled hard till about 6100. Also it does not have any knock retard. That is what I am trying to figure out. I will moet probably have the car dyno tuned, but what to know the reason or what the timing should be?
