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Discussion Starter #1
Ok guys, another question

I am also changing my spark plugs from Denso Iridium IK 24 to IK 27. What gap do you suggest? Is it possible to change gap on Iridium spark plugs? I will also hotwire my coils. Wil run alcohol/watter injection also on dr750.
 

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If running lots of boost, you want to close your gap more. my built 300zx i was at .018 on my evo I am .022 on a 3kgt .025 should be perfect imo as long as you are betweek .022 to .030 you should be fine
 

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Try .030" up to 20lbs boost, .028" to 22 lbs and .025" to 24lbs of boost. You may be able to get away with a wider gap with the hot wired coils, but I don't think you will lose anything
with those gaps. And yes, you can gap the iridiums, but be careful not to damage the electrode. Personally, I would run coppers and just swap them out every 6k miles.
Wayne
 
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