silverbandit0996

iTrader: (2)

ok i have a 150 wet shot and meth injection. i currently run tr6's but was considering going to a tr7. would i lose noticable n/a horsepower going colder again. i had trouble feeling any difference when i went to the tr6 from the 55's when i had spray. just curious.

00cls1camaross

iTrader: (10)

probably not, i think the ngk 7 heat range plugs are over kill. I just put a tr6 in for my 150 shot. you should be fine.

silverbandit0996

iTrader: (2)

anyone else got input?

ssmoov1

iTrader: (2)

I run the tr7's.Better to foul out cheap plug than to burn a hole in your piston. There are some good writeups here lately than explain more in detail on plugs.

suzookiegsxr

Depends on how often you want to pull your plugs. If you done mind changin the tr7's every 10k go for it. I get about 40k out of my tr6s

bongva

iTrader: (7)

man sorry to jack your thread but i have a question... is it ok to spray 75shot on tr55 copper plugs?

gold98Z28

iTrader: (7)

you really need to read your plugs to get the proper heat range. it all depends on how much compression you have, how much timing you have, what gas you run and how big a shot. you cant just say x plug is good for y shot of juice. when you read your plugs you need to do a pull on the jug and shut the car down, if you idle or drive it afterwards it will mess up your reading. pull the plug and see what it wants. then you will know......

ps. bongva, ive sprayed a 175 on a tr55. tho i wouldnt recomend doing it often. you can spray a 75 on anything and get away with it. i think my weed eater will handle that. haha