Best Spark plugs

[mike240sr]

what are the best spark plugs for my engine.

s13 sr20w/s15 injectorsgt2871rall other basic bolt-ons

I am burning up all different types, and my knock levels are going crazy at mid to high rpm's

[S13FASTBACKSR]

ngk iridiums... for low range hp engines go with heat range 6, mid range hp go with 7 and high hp engines go with heat range 8

[9240sx]

STOCK plugs are the best . NGK platium I think the part# is PFR6B-9

[240Knightrider]

are the NGK's already gapped??

[mike240sr]

the car was just tuned at 312 whp so i am thinking the iridium level 8

[S13FASTBACKSR]

ngks are already gapped but probably not to your specific needs...hmmm 312horse is ok with a set of 7's...im pushing very close to that and i use 7's

[hpmachine]

you're burning up plugs? you know what your afr's r?

[Blown240sx]

Hey Mike its Chris from Kentucky. Hows the car now? Get all the damage fixed?

Tell Chuck to get his *** in there and fix it. Im using Iridium 7

[da40]

the car was just tuned at 312 whp so i am thinking the iridium level 8

im doin 310whp and im using the sevens they do the job,i change them every 3 or 4 months like to keep them fresh

[9240sx]

You sould go up one heat range every 100hp you add over stock..So say's the NGK website..

[ILikeMy240sx]

NGK Iridium 7 heat range.I think its BKR7EIX or something like that

[mike240sr]

chris whats up

yeah i had the car back up a going in a week and drove it to chicago for a dirfting event

[S13FASTBACKSR]

you drove your car all the way from st. louis to chicago and back? wow..how did you do in the event?

[mike240sr]

pretty good until the coupler form my turbo to hotpipe was destoryed after about 5 runs. No parts stores had them, but a guy sold me the one of his car had called it a day and drove back home.

And the damage blown240 was talking about was our drift team was practicing and my car locked up sending me into a curb and i went abourne into a ditch and shattered my intercooler and bent both my control arms, all with an a police officer friend in the car. Haha

pic from event (not me Chuck in s14 w/s15 engine, i took the pic)