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The Terminator
Engine/Tuning
Denso Irridium plugs...
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<blockquote data-quote="Jon" data-source="post: 586487" data-attributes="member: 6747"><p>Let me know how the .040" gap works for you. I use feeler gauges to adjust the gap, if that makes any difference.</p><p></p><p>I am not an expert but it looks like there there are two issues going on here:</p><p></p><p>1) small gap is needed for high-rpm, high boost. Ingnition failure here is refered to "blowout" and it very noticable on the dyno.</p><p></p><p>2) wide gap is needed for low-rpm driveability. Ingition failure here is more like inefficient burn. It does not seem like a real miss but maybe a "puff" rather than a "bang". After all, the reason why the gap is so large is to light the (smog compliant) lean mixture.</p><p></p><p>I am trying to figure out how I am going to balance the two. Maybe I need an MSD or something.</p></blockquote><p></p>
[QUOTE="Jon, post: 586487, member: 6747"] Let me know how the .040" gap works for you. I use feeler gauges to adjust the gap, if that makes any difference. I am not an expert but it looks like there there are two issues going on here: 1) small gap is needed for high-rpm, high boost. Ingnition failure here is refered to "blowout" and it very noticable on the dyno. 2) wide gap is needed for low-rpm driveability. Ingition failure here is more like inefficient burn. It does not seem like a real miss but maybe a "puff" rather than a "bang". After all, the reason why the gap is so large is to light the (smog compliant) lean mixture. I am trying to figure out how I am going to balance the two. Maybe I need an MSD or something. [/QUOTE]
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