I'm sure there is one of these around, but I looked, I promise.
Seems to me, my plugs are shot at about 10k on my N/A. I also have bad experience with running anything other than the BUR7EQ and BUR9EQ plugs.

 

I change mine from 5K-7.5K...should probably go for sub 5K though...there really not that expensive.

 

They eat plugs.Let's not forget that for every revolution the leading plugs fire 6 times, trailing 3. Compare that to a piston engine 1 revolution 1 fire. You can see why the plugs don't last.

 

plugs are cheap. yeah right. 25 bucks for 2. i changed my girls jeep spark plugs 2 weeks ago, 1.99 a pop. thats cheap!

 

I change mine about as often as I change the oil. I wouldn't say I have money to burn, but they're usually only around $4 or $5 each.

 

wtf? 25 for 2? i pay like 10 bucks each canadian so it should be less then 7 bucks for u.

just use normal copper stuff.

 

I have heard of stock NGK plugs going for over $10 American...I guess some places just don't want to stock them.

 

yup, im just like unique. the longest i go is about 2 oil changes between plugs. i only change the leading every oil change. i change oil at 2000 miles. 5 bucks a plug in miami!

gotta keep the TII runnin sweet...

 

hrmm my plugs also need to be changed...........

 

Thanks for the replies and not calling me an ******* for not putting this in the polls section. Although it IS 2G spec...

Just thought I'd put the poll up today because I'm well over 10k and recently my beast has been running a little rough (warm startups mainly).

Better change 'em before autoX this weekend!

-Z

 

Great, now I'm not unique any more.

Have any of you guys used plugs other than the BUR9EQ and BUR7EQ?

 

10K is when I change mine, I think it's ok to go as long as 15K, but no more than that..

On the RX7 now, every 3 races is what I've budgeted.

PaulC

 

mazda dealershipdoesn't seem to overchage on price... i tihnk i can get them for 50 bucks,
pay cash and it would be liked 45 or so

 

I change them every other season. With a Crane Cams Ignition Box amplifying the sparks, I would think maybe I should change It sooner.

 

Lately on my FD I've been changing them all the time. I only got 200 miles out of the last set....that's probably cause I let the car sit and they fouled out....oops.

 

http://www.thepartstrader.com/Single...=101&C2ID=1004

Apparently, some people think the stock plugs are worth a lot of money.

 

I tried the colder leading plugs RB recommends for street ported/weekend racer engines. Thats what I have in now, but I'm just gonna get bur7&9s tomorrow.

 

I chg mine every 10k, and use the 9's all around.

 

Every 3 months for me. About 3k miles. I am **** like that, or at least I was till it popped

 

What are you talking about? FC's didn't come with CDI from the factory, and each rotor face combusts once per revolution.

 

I should really change my spark plugs.....

 

haven't changed mine for almost 2 yrs now maybe that's why i'm getting that pop pop pop and rough idle

 

I run 9's and 10's on the street. I take out my plugs and clean them about 1 time week or about every 10days. and replace them about every 4 or 5 months

when I goto the track I use a ngk 11's

 

i'm going to get some new ones very soon. it idles rough and i'm sure it's the plugs.

 

every 6 months i replace my plugs with ngk which arent expensive .. $10 for all 4 !