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06-16-2008
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#1 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,165
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Re: Spark Plug Heat Range
Nope no issues with the 41602 in my 90
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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06-16-2008
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#2 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,406
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Re: Spark Plug Heat Range
i on a whim am trying that e 3 spark plug . i have about 2k miles on them but seem to get about 1.5 mpg better milage on the freeway and dont have as many knock events .could be just that they are new plugs . i could be nuts but these things just might work. just thought id throw it out for ya
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07-27-2008
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#3 |
 
Join Date: Aug 2004
Location: Spring Grove ,Pa.
Posts: 258
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Re: Spark Plug Heat Range
I use AC rapid fire #8's gapped to .045 th. I changed over to NGK BKR5EIX's . I wanted to go back to the rapid fires and I get tappered seats no washers. I swore the #8's I had before had washers. I accidently threw the old ones out. Am I crazy or just mistaken.
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91 Turquoise Metallic Haibeck 525 #0134 |
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