I have a 2.8" pulley, what spark plugs should I get, one or two ranges colder? Ive searched for the last 2 days and cant find an answer. Help me out here guys.

 

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1 Range Colder Bkr7e I Believe

sorry for the caps

 

yup 1 range colder will make ur engine happy

 

Thanks guys, I bought the bkr6e's but I wasnt sure if they were the right ones. I guess Ill go back and get the 7e's.

 

i got a question, sorry to thread jack, but what if he went 2 steps colder??? i know he may not need it, but it wouldnt affect performance would it?

 

You will be able to tell a huge difference, i know i could anyways.

 

need higher octane..more air...it just doesnt mix well with his setup...depends on a lot of things..those of us at sea level need to run 2 steps colder with a 2.7 with 60s..its all tuning

 

well im saying, say just to be on the safe side he went 2 steps colder, doesnt that mean just the plugs themself are harder to heat up in which case elminating knock?? so assuming what i just said is correct (which it may not be) cant someone like myself with a 2.2 run 2 steps colder "just to be on the safe side". i know its unecessary, im just saying isnt it possible?

 

i dont see u pushing 1 step colders to that point..but in reality u can..and if it runs like **** go back lol

 

lol alright. just wanted to make sure

 

2 steps it for people spraying, or past 290hp IMO.

to much for just a 2.8

 

this also a common equation...1 colder per 100 hp upgrade...so 205-305 1 step colder 306 and up 2 steps