Thread: Minor Modding/Tuning Up

Originally Posted by motorking

Brandon,
I work as the technical manager at Autolite. As long as you have not done anything to raise the boost or compression in your car, you should not use a colder spark plug. there is simply no benefit to doing so at all. What may happen is a fouled spark plug, a failed cold start or partially fouled plugs. The reason you would need to go to a colder plug can be found by watching the videos posted at www.autolitechallenge.com/pro. The 5th video in the series explains what spark plug heat range is all about, when and if you would need to change heat ranges. You can also get a Autolite branded Carhart jacket for watching all 6 video's. There is one video about the DIS ignition on your car as well.
You should also stay away from using a copper core spark plug unless you really enjoy changing spark plugs. Your DIS ignition fires one half the spark plugs in the opposite direction, meaning the spark actually jumps from the side wire to the center wire. using any copper plug in a DIS ignition vehicle is a mistake that will cause rapid degradation in the sidewire and misfires in as little as 16k miles. Use the Autolite XP606 Iridium fine wire plug. Yes, they cost 7 bucks a piece. They are worth it. They take less ignition voltage to fire and have a 25% larger flame kernal than the stock plug. The also have a platinum button on the side wire to prevent gap erosion. They have a 100k life span as well. If I can answer any other questions for you, please feel free to contact me at Jay.Buckley@Honeywell.com

great, super informative post.

Originally Posted by Bio248

great, super informative post.

Bio, you should some how like STICKY it or put that somewhere where other people and can see it and that way they can all know about it. I dont how you can do it, but i think it worth a shot.