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The Terminator
Engine/Tuning
Reading Plugs
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<blockquote data-quote="SVT_Troy" data-source="post: 14055082" data-attributes="member: 124907"><p>When reading plugs your supposed to do a WOT pull then immediately pull a plug to read, not do some pulls, cruise home and try and read a plug. The cruising will wash the WOT reading out. Drag racers shut the car down and tow it back to the pits to read plugs for fine tuning. </p><p></p><p>If that plug were pulled immediately after a pull I would say the timing looks good as you want the blue line to be after the sharp bend and before the weld point on the strap. from the pic it actually looks like you could advance timing a little more but I wouldn't. As far as AFR the WOT AFR/mixture ring is on the base of the porcelain and needs a special light to properly read. Your porcelain is too white, it should be light tan/graish which leans to a lean condition or a spark plug that is to hot.</p><p></p><p>Reading plugs like this can get a little complicated and more than what most here would require. </p><p></p><p>You don't have any specs, deposits, damage to your strap so I'd say your ok. But you also did not pull a plug immediately after doing a pull.....</p><p></p><p>And I'm off my soapbox, hope I didn't confuse you to much</p><p></p><p>Troy</p></blockquote><p></p>
[QUOTE="SVT_Troy, post: 14055082, member: 124907"] When reading plugs your supposed to do a WOT pull then immediately pull a plug to read, not do some pulls, cruise home and try and read a plug. The cruising will wash the WOT reading out. Drag racers shut the car down and tow it back to the pits to read plugs for fine tuning. If that plug were pulled immediately after a pull I would say the timing looks good as you want the blue line to be after the sharp bend and before the weld point on the strap. from the pic it actually looks like you could advance timing a little more but I wouldn't. As far as AFR the WOT AFR/mixture ring is on the base of the porcelain and needs a special light to properly read. Your porcelain is too white, it should be light tan/graish which leans to a lean condition or a spark plug that is to hot. Reading plugs like this can get a little complicated and more than what most here would require. You don't have any specs, deposits, damage to your strap so I'd say your ok. But you also did not pull a plug immediately after doing a pull..... And I'm off my soapbox, hope I didn't confuse you to much Troy [/QUOTE]
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