Hi All - I'd like to get rid of a detonation problem my car has.
440 in my 66 T&C - runs beautifully (now that the no start-run issue was dealt with)
Pertronix setup.
I experience detonation on mild to medium heavy acceleration and would like to reduce or eliminate it.
I know that I can adjust the vacuum advance canister with an allen key, and that all this adjust does is increase or decrease the amount of vacuum needed to allow advancement to occur, and that it does not adjust the amount of total advance, or change the curve.
So - this is a place to start. My thoughts are that I need to INCREASE the amount of vacuum needed to allow the diz to advance, so that the mild vacuum increase created during mild acceleration is not enough to advance the diz as much, and thereby reduce detonation.
Is that correct?
As well, if I'm on the right track, which way do I turn it to reduce the detonation? Clockwise or counter?
TIA!
440 in my 66 T&C - runs beautifully (now that the no start-run issue was dealt with)
Pertronix setup.
I experience detonation on mild to medium heavy acceleration and would like to reduce or eliminate it.
I know that I can adjust the vacuum advance canister with an allen key, and that all this adjust does is increase or decrease the amount of vacuum needed to allow advancement to occur, and that it does not adjust the amount of total advance, or change the curve.
So - this is a place to start. My thoughts are that I need to INCREASE the amount of vacuum needed to allow the diz to advance, so that the mild vacuum increase created during mild acceleration is not enough to advance the diz as much, and thereby reduce detonation.
Is that correct?
As well, if I'm on the right track, which way do I turn it to reduce the detonation? Clockwise or counter?
TIA!