So tonight i went out and bought some ap104 spark plugs and my motor is basically stock except for a 4'FWI and i was wondering what should i gap them at?
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03-15-2008
So tonight i went out and bought some ap104 spark plugs and my motor is basically stock except for a 4'FWI and i was wondering what should i gap them at?
03-15-2008
AP104? Did you buy platinums? I just replaced mine the other day. AL104 coppers. 104's arent really needed till 3.5 territory.
03-15-2008
stlmo_gtp, Platinums are not good on a supercharged motor. The bonding agent can give under boost applications and cause the platinum tip to fall off and bounce around the inside of your motor. Also as said, the 104's may be a tad to cold of a plug for your setup. I would jump up one range warmer.
webracin
03-15-2008
which are one range closer ? i was told to go with al 605's so that is what i am going for
03-15-2008
But he's going to a 3.4 pulley soon. So the al 104's should not hurt the engine and he'll not need them when he drops to the 3.4
03-15-2008
I ran a 3.4 pulley on 605's with no issues at all. When I pulled them, to put in a new set, they showed no signs whatsoever of being too hot or too cold. I did, however, run a set of 104's and they did show signs of being too cold of a plug.
So from a personal experience standpoint, 605's should be fine for you.
03-15-2008
well i ended up going with the 605's a gaped them @.55 i just haven't installed them yet, i'm waiting on my shift kit, some more feedback on the trans fluid, and picking up some oil.... so i can knock everything out at once
03-15-2008
AL 605's are a good choice, even with a 3.4 pulley.
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