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Spark plugs?

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Old 07-26-2008, 04:47 PM
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Default Spark plugs?
Not really sure if this is the right section but I was curious if changing my spark plugs would be good or just un-nessisary. My H/C is in sig, heads are milled to 59cc and Im running approximatly 11.1 CR.
So would it be a good thing to do? Why and what type of plug would be best?
Thanks all.
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Old 07-26-2008, 04:58 PM
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Grab a set of NGK TR6s and gap them about .038
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Old 07-26-2008, 05:17 PM
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Originally Posted by ZMONSTER!
Not really sure if this is the right section but I was curious if changing my spark plugs would be good or just un-nessisary. My H/C is in sig, heads are milled to 59cc and Im running approximatly 11.1 CR.
So would it be a good thing to do? Why and what type of plug would be best?
Thanks all.
Ryne put some TR55's in mine... they seem to be working great...
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Old 07-26-2008, 05:41 PM
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Originally Posted by Z28/2002
Grab a set of NGK TR6s and gap them about .038
? dont know what that means!
Originally Posted by Soul TKR
Ryne put some TR55's in mine... they seem to be working great...
Ill have to ask him about this!
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Old 07-26-2008, 05:41 PM
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what are the benifits though?
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Old 07-26-2008, 07:02 PM
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Originally Posted by ZMONSTER!
? dont know what that means!
.38 is the measurment of the gap between the spark plug electrode and the "prong" at the top of the spark plug... different setups require different gap sizes

most people keep theirs gapped around .50-.60.... mines gapped at .55 i believe...
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Old 07-26-2008, 08:33 PM
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Can someone explain what the benifits of these spark plugs would be?
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Old 07-27-2008, 06:57 AM
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General rule of thumb is when you add 100+ hp over stock, step down a heat range in plugs, i.e. TR6s
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Old 07-27-2008, 05:20 PM
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I have TR6's @.038 but I have N20 but I hardly use it.

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