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Re: going from #6 to #7 spark plugs..now im running lean????
Originally Posted by slo_crx1
Correct. The "6" designates heat range...most stock dohc vtec's use a "6" range plug to begin with, and most stock D-series call for a "5" from the factory.
The biggest difference with the plug is how far the ceramic sits down in the well...the longer the ceramic, the hotter the plug and the less heat that's dissapated into the cylinder head and cooling jackets. Shorter ceramic moves the heat alot quicker to lower cylinder temps. BTW, high 12 afr isn't that far off for 7psi...I like a nice 12.5 at that range, any richer into the 11 range and you start fouling plugs and misfiring regardless. |
Re: going from #6 to #7 spark plugs..now im running lean????
Originally Posted by jagojon3
I don't think he was asking you, pretty sure whiterice knows how heat ranges work anyways.
I was asking if you stuck with the same plug types. bkr or if you had zfr or race series, etc |
Re: going from #6 to #7 spark plugs..now im running lean????
My bad...didn't know who it was directed at. :P
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Re: going from #6 to #7 spark plugs..now im running lean????
changing heat ranges on the plugs can change AF ratios.
Try some NGK R5671A-9's and see what happens :) B16, 11.5:1 compression, 150 wet shot with a stage 3 ported head........ SICK! |
Re: going from #6 to #7 spark plugs..now im running lean????
Originally Posted by Mista Bone
changing heat ranges on the plugs can change AF ratios.
Try some NGK R5671A-9's and see what happens :) B16, 11.5:1 compression, 150 wet shot with a stage 3 ported head........ SICK! |
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