Stumbling Issues - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-14-2006, 12:51 AM   #11
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The more I think about it, I did get A LOT more KR before the Seafoam. And my flash KR of 20* dowshifting to the top of second nearly disappeared. I say give it a shot.
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Old 03-14-2006, 12:52 AM   #12
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Manifolds glow if I run it under WOT for a bit...
Plugs are stock heat range gapped at .55...the old ones were stock heat range gapped at .60, i have seen no difference
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Old 03-14-2006, 12:54 AM   #13
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Try one range cooler, gapped at .055
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Old 03-14-2006, 12:57 AM   #14
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Alright. so instead of TR55s run TR60s?
What will one heat range colder do though?
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Old 03-14-2006, 12:57 AM   #15
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Quote:
Originally Posted by J Wikoff
Try one range cooler, gapped at .055
Yes that much boost could be blowing out your spark causing kr.
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Old 03-14-2006, 01:08 AM   #16
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At this point. plugs would make sense to me with the KR all over the board as it is...and why it isnt there with a stock pulley....
I willl look into colder plugs here soon!
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