Breaking up at full boost
#4
Re: Breaking up at full boost
Yeah almost always ignition related. Either spark plug gap, or lean misfiring. Hopefully just the former. Gap no wider than 0.028" if 15psi or more.
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#9
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Re: Breaking up at full boost
What is your power goal? This will determine the heat range of your plug. For example, I ran NGK BKR7E (heat range-7) plugs with the old car (304 whp), gapped at .026". I run NGK R5671-8A (heat range-8) in the new car (445 whp), gapped at .028". Every setup is different, but just giving you a ball park range.
Talk with your tuner, and he'll choose a plug for you, based on your power goal. In the mean time, find out what NGK plugs you have in there now.
Last edited by Silva Bullit DC4; 01-04-2011 at 06:23 PM.
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