E85 from 91oct. Should I close my plug gap some?
#1
E85 from 91oct. Should I close my plug gap some?
Been running BR8ES at .024 and about 22-23psi with no break up. I'll be getting tuned on E85 in a few days and will be changing plugs before hand. With boost going up should I close the gap down some? Maybe 22 or even 20? Also am I good with the 8 heat range plugs?
Mods are full bolt on's and comp 272's on a viii
Mods are full bolt on's and comp 272's on a viii
#5
EvoM Guru
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I also had to gap mine down to about .021 running about 28psi. (IX turbo/intake/exhaust/02). I had some serious spark blowout after I initially got tuned. After I regapped my new plugs, the cutting out went away (1-4 gears). However, I still get a bit of cutting out in 5th gear from time to time....
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#11
If you're tuned on E85 and running .024" without misfiring then you should leave the plugs alone. The only time you should close the gap down is when you begin misfiring. Running too tight a gap will hurt driveability, fuel mileage, etc..
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Huntington MR06
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Dec 27, 2011 07:33 PM