im workin on my turbo project..and i work at autoZone so i get deals on plugs..and i was just wondering how often you change ur plugs..right now what i have on hand it..2 sets of denso iridums, bosch +4's, and bosch iridum fusion +4's..but anyways..about how often do you change ur plugs on a turbo app. and what plugs do you guys usually use?

 

every 3 k on mine daily driving or after every time i goto the track

 

at least one a month if i'm driving it alot. My race car is every track time I replace them. My daily beater every oil change.
I look at them once a month.
after every race

 

I ran my OEM plugs for 5 years, now I'm on my second set..one range cooler. So for me..2 sets since '99

 

BKR7E's every 2k miles (oil change)

 

Usually at every oil change. Longest I'll go is 2 oil changes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 22psicrx &raquo;</TD></TR><TR><TD CLASS="quote"> at least one a month if i'm driving it alot. My race car is every track time I replace them. My daily beater every oil change.
I look at them once a month.
after every race</TD></TR></TABLE>
same here...plugs are cheap anyways...(for a turbo honda)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PINKS &raquo;</TD></TR><TR><TD CLASS="quote">BKR7E's every 2k miles (oil change)</TD></TR></TABLE>

i use these and just about everybody i know uses these. I would rather not change my plugs every 3K. If you switched to iridiums would they last longer and if so how much longer??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PINKS &raquo;</TD></TR><TR><TD CLASS="quote">BKR7E's every (oil change)</TD></TR></TABLE>

I don't drive my car much, it's a weekender. I change mine prob. once every other month. Plugs are cheap, you can buy a box and not spend $20

 

BKR7E-11's here and i change them every second oil change. (6k miles)

 

right befor eliminations, or about atleast 5 rounds. i run my engine a little safe (fat)

 

every pass.

 

Every oil change which was/is every weekend

 

not a baller like you dave, but usually it is like this since i never well almost never make it past first round, new plugs, 3 rds qualifying, new plugs, lose. then same plugs for qualifying, and new ones for eliminations. unless there is a problem. but they get removed every round and checked.

 

i've got 20k without changing my BKR7E's...and they seemed fine before they were changed, and the performance didnt change with the new plugs.

i'll be waiting no more than 10k to change the next ones..just for safety.

i ran it rich too, high 10s AFR wise

 

we use autolite raceplugs which arent as expensive to throw away.

 

I changed mine with every oil change which was about 3-4K. (bkr7e's)

 

Every oil change (2.5K miles)

 

so you guys run ngk 11's 7's i run ngk vpower copper 9's

 

how much power u making? i was 540 whp running 8's.....