Plug gap?
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Joined: Mar 2010
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From: Poolville
I really think he needs to be banned from this Forum...
Last edited by 98hotrodfatboy; Jun 26, 2021 at 06:21 AM.
Road Warrior
Joined: Mar 2013
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From: Alorton, Illinois
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From: Ottawa, CANADA
I'm running NGK Iridiums, one range colder than stock (DCPR8EIX), in Reaper's engine, which is built out to 98 ci @ 10.5:1 compression. For the past year or so, I ran a 0.035" gap. I recently replaced them, and decided to try a larger gap (thanks to reading articles/posts related to effect of spark plug gap). So, same plugs, but gapped to 0.040", and no other change to anything engine related. So far, I've picked up 2+ mpg, and she seems to pull a bit harder. So, it would seem that the 0.035" gap wasn't optimal for my build, and 0.040" is right on, or at least closer. I'm going to experiment a little with gaps, and see where the optimal gap lands.
Cheers!
Cheers!
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Joined: Dec 2005
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From: poway
You can listen to internet experts repeating other's information all day long. Or you could go with manufacture recommended gap that is in the book. Get away from stock engine and gap is best found by power output. Sometimes .020 is best power. All depends on the build.
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