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Old 11-02-2006, 07:54 PM   #1
cruzinWRX2
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Join Date: Mar 2005
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Default Having Issues With Spark Plugs

Anyone here having problems? I've got a front mount ic, an oversize perrin inlet ,walbro fuel pump apexi boost controller and aem intake. now im wondering if i should run a colder then stock plug? At my job we list 2 different gap settings now but it doesnt specify why. .044 and .030 these are NGK plugs of course. I put the .044 in and is missing and losing power at times it seems. anyone got anything on this? thanks .....mikey.....
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Old 11-02-2006, 08:08 PM   #2
ktmrider
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First guess is the 0.044" gap is non-turbo ( pretty std for NA ).
Colder plugs are suggested when boost levels are increased over stock ( general rule of thumb is +5psi = 1 colder ). It helps with detonation reduction. Smaller gaps are also good to keep the flame kernel from "blowing" out under extreme cylinder pressures.
Regap your plugs to 0.030" and the issues will probably go away.
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Old 11-02-2006, 08:35 PM   #3
cruzinWRX2
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yea i warrantied some older ones out today and got the smaller gap ones, i'll give that a shot. but i am running a lil higher boost A=14-15 B=17-18 im usually in A unless its colder out.
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Old 11-02-2006, 09:53 PM   #4
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Looks like you are having issues with posting in the right forum.

Looks like you are having issues with reading the sticky in the right forum.
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