The right spark plugs to run with the Harrop?
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The right spark plugs to run with the Harrop?
Ok i've tried this before with failed results, currently im running NGK BKR6E which is stock heat range and its a copper plug I'm also running .040 gap.
I've tried BKR7E plugs at gaps anywhere from .035 to .045 and I got knock in every gear under load, whats the right plug and gap for this setup??????
I've tried BKR7E plugs at gaps anywhere from .035 to .045 and I got knock in every gear under load, whats the right plug and gap for this setup??????
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I ran 25 psi on that plug to the tune of 22* once i went to 28 psi it started to blow out in 3rd i tried 2steps colder iridium and the same thing happen so i ended up pulling some timing for pump gas. Those plugs should handle your power just fine.
Last edited by lsjwannabe; 02-22-2009 at 12:35 PM.
#3
Try the BKR7EIX iridium plugs 1 step colder. I gap'd them at .028-.030 with a 2.7 pulley runs awesome no spark blowout! I have friend with hybusa motor bikes with turbos and they run in the low 8sec range...they swear by the NGK iridium plugs thats all they use.
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