What determines maximum spark advance? I know on my Firebirds I set the maximum spark advance to come in at 3000 RPMs at about 36 degrees. What can a fuel injected car run. Reason I ask is because I have recorded 43 degrees. The maximum spark advance set in programming was 43.95.

Thanks,
Craig

 

Maximum spark advance that you can run may not be the optimum for your motor. Maybe the question should be "what is the least spark advance that I can run."

If a motor makes the same power from 28 degrees advanced to say 31 degrees advanced I would take the 28 degree number everytime.

 

So is there any harm in setting the timing in the rpm vs. advace table to go no higher then 36?