Spark Plug FI Question
02-13-2006, 10:54 PM
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Staging Lane
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Spark Plug FI Question I plan on installing an ATI Procharger (P1SC) in the VERY near future (anxious as hell) and I wanted to change the plugs before it went on. I was leaning towards the NGK TR6's and wondered if they would work direct or if I would need a tune (dumb question). I also would be driving the car for about a month w/o the ATI until I can save enough money for the install/supporting mods. Thanks.
02-14-2006, 08:25 AM
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Stock plugs will do for normal driving until you are ready to get into the boost.
The colder plugs tend to foul easily, so you must be careful about how rich you run for part throttle and warm-up. To keep them clean you want to stay on the high side of stoich for light throttle/idle when warm, and no richer than about 13.0 during warm-up.
A normal cold-start cycle can foul cold plugs pretty quickly.
The colder plugs tend to foul easily, so you must be careful about how rich you run for part throttle and warm-up. To keep them clean you want to stay on the high side of stoich for light throttle/idle when warm, and no richer than about 13.0 during warm-up.
A normal cold-start cycle can foul cold plugs pretty quickly.