spark plug gap?
05-21-2009, 08:19 PM
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spark plug gap?
ok i have the gm stage 2 kit ..and i have a 2.8" pulley i was wondering what should the gap be on the plugs in i get the ngk one step copper? and i was wondering what the gap be if i do the same setup but with 60lb injectors?
05-21-2009, 08:33 PM
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.32 is what i run and in your case what i would run
that would be for the 60's
that would be for the 60's
Last edited by Cefaln452; 05-21-2009 at 08:33 PM. Reason: Automerged Doublepost
05-21-2009, 08:53 PM
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05-22-2009, 12:08 AM
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I just through the dam plugs in there i checked one and it was at about 33 aswell and these are the ngk7,s so they are super sensative to gap i didnt touch them and so far the car runs fine !
05-22-2009, 01:23 AM
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A stage 3 pulley (2.99). I know it's a smaller gap than what alot of others are running but my car liked it the best. Idle was the smoothest out of all the different gaps i tried...... and i tried them all between .030 and .040
05-22-2009, 09:40 AM
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You do not need to change your spark plug gap if you change injectors.
The fuel flow rate doesnt change unless you change it in the tune.
.35" is just fine. Wouldnt go much higher than .38".
The fuel flow rate doesnt change unless you change it in the tune.
.35" is just fine. Wouldnt go much higher than .38".
05-22-2009, 09:56 AM
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No...
When you change your injectors, you just change the flow rate in the tune... you dont have to touch anything else..
Meaning that everything else (AFR and such) will stay the same..
you dont need to regap, because you arent making any new power.
When you change your injectors, you just change the flow rate in the tune... you dont have to touch anything else..
Meaning that everything else (AFR and such) will stay the same..
you dont need to regap, because you arent making any new power.
05-22-2009, 07:23 PM
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start on the higher end of the spectrum and work your way down till you find one that works best for you. I think I ended up with .034
I wouldn't go highr than .038, so start maybe with .036
I wouldn't go highr than .038, so start maybe with .036
05-22-2009, 11:13 PM
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You need a tune after upgrading/downgrading injectors however you do NOT need to change the gap on the plugs. For what the op is running he should be at roughly .035
Hopefully this helps clear some things up.
Hopefully this helps clear some things up.
05-23-2009, 02:33 PM
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yeah i know i had the 60's in once but it blew up like a month later and i got a new engine and supercharger, i have hp tuners... but if any of you guys know any tips for the 60's tune that would be great thanks
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