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Originally Posted by flip1199
wow. that a pretty small gap. you need like .32. it's not that hard to bump up the idle yourself, just get a flathead screw driver and adjust the idle screw on your t/b.
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Yes, it is a very small gap. When you combine a weak spark with high combustion chamber pressures you sometimes need to shorten the gap to ensure spark.
If I read your post correctly you just prescribed a gap of 32 for everyone. That is bad advice. Every engine setup is going to need (or be able to tolerate) a different gap. It is kind of like telling someone they need to eat 1 sandwich a day to achieve proper nutrition….. Everyone needs what they need, there is no set amount.
If one person has a “tired� Coil with a “tired� ignition module and old wires they may not be able to deliver the same spark power as another person. The correct way to address that situation is to freshen up the ignition system, but a quick fix is to shorten up the gap.
Another person (such as myself) with an MSD Digital 6+, HVCII coil, Good wires, etc. can tolerate a much larger gap. I actually run 48 on my plugs without a hint of misfiring.
The idea is to start out with a very small gap that (could) hinder power but will definitely transfer spark. Then, once you have a baseline, keep opening up the gap until you reach your personal threshold where your personal ignition system can no longer keep up.
Back when we all had the same boring stock prelude, we could share absolute advice with static numbers. Now that we have all taken different directions and our motors are in extremely different states of tune, we need to take that into account when offering advice.
32 is a very small gap btw. And nobody asked what type of plug was being used or what sort of ignition was installed.
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