Which spark plug ??
- Thread starter Oz_Vtec
- Start date
plain cheap copper, correctly gapped and checked and replaced often. dont waste money on the expensive ones, they arent any better than the plain copper plugs. get the right temp range, gap em right, and just check them for fouling and you'll be fine.
anfrey
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why 2 steps instead of one?SeanMc300 said:two steps lower. go to your local parts place and bring em in yours, and say "i need a two step colder plug" they will know what to get.
anfrey
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mmm i'd like more of an explanation rather than an appeal to authority. u seem to know your s**t, sean...SeanMc300 said:i dunno, thats why my friend told me....he did it to his civic and it runs great. he is a boost GOD, he knows everything, im not kidding.
okay..hmmm well you want colder plugs due to the increased heat that the tubro is generating. going two steps colder seems to be the way to go. sometimes i have things where i just have no technical way of explaining it. if you want i can ask him tomarrow and get a indepth reason, if you want.
ive learned all that i know from him. so usually when he recommends something, i take his advice.
ive learned all that i know from him. so usually when he recommends something, i take his advice.
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the colder the plug, the sooner it fouls, but the less chance it has of contributing to detonation. when you are running boost, you need to weigh how much track time vs. how much daily driving time you'll be doing. if it will be almost exclusively daily driving, 1 step colder is fine. if it will see a mix of track and street, 2-3 steps colder is good, and if its exclusively a track car, several steps colder is needed. the heat range of a plug is simply the length of the insulator. longer insulator= hotter plug. hotter plug= less fouling (it resists carbon buildup) but its a very hot object that is prone to spawn detonation when running extremely high compression/boost. cold plug is the opposite.
I've had ngk's for a while now and they are now just starting to give out on me now. I love them! the main thing with plugs is that you just need to stay on top of them. Most people put costly ones in and just leave them and then don't know why they are having problems not to far down the road.