what is retarding the timing
06-09-2003, 08:08 PM
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Join Date: Feb 2003
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Re:what is retarding the timing
Retarding the timing - whether by manually adjusting the distributor, relying on an MSD-BTM to do it for you, or by changing your ECU programming - causes the ignition to fire the spark plug later in the combustion cycle. This is desireable when the engine is operating at a high speed, temp, and/or pressure to keep the fuel-air mixture from detonating, as it likes to under those conditions.
Your stock ECU retards the timing a bit under WOT as compared to part throttle highway cruise. When you go forced induction, most engines like the timing retarded more when the boost starts building up.
Your stock ECU retards the timing a bit under WOT as compared to part throttle highway cruise. When you go forced induction, most engines like the timing retarded more when the boost starts building up.
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