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View Full Version : What spark plugs?


BadAzzGTA89
07-15-2007, 10:03 AM
Ok the time has come and i have to tune my Buick up i was wondering what plugs work better in the supercharged engines?
This being my first supercharged engine i want to get the best plugs i can.
So is the IRIDIUM spark plugs better than the standard plugs? Also is there a better brand to use?
Thanks:thumbsup
Oh yea it's a 01 Regal GS
theavenger333
07-15-2007, 01:07 PM
Autolite 104s. don't waste money on iridium or anything. plain jane Autolite 104s
BadAzzGTA89
07-15-2007, 02:01 PM
Autolite 104s. don't waste money on iridium or anything. plain jane Autolite 104s

Mine is not modded well it has a gutted air box:rolf
But the 104's are a colder plug won't get crappy fuel mileage?
theavenger333
07-15-2007, 09:36 PM
it is a slightly colder plug, but the plugs at 104 level are more of a enhancement, even on the stock pulley. they're supporting mods, you don't "gain" horsepower with them, you just make the car run better. honestly i've never heard of losing mileage with the plugs, only if you go to a lower thermostat. if you don't go with 104s, and you do stockers, again, don't bother with Iridium or any crap like that. waste of money. you should be fine running those plugs though.