NGK-R
#11
Originally Posted by Maxt' post='905877' date='Aug 5 2008, 01:10 AM
They will outlast stock plugs by a factor of 3 even with an ignition amp. You can index them to spark towards the approaching charge, they do make more hp than stock plugs, a little more safe advance can be had, I tested it on my own dyno. As for fouling on street cars, never had it happen, and I run 10.5's on my n/a p-port, 11.5's on my TII. Getting rid of the junk aftermarket apex seals, got rid of my hot start problems.....
How do you index them to face the approaching charge?
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