Ok so I have been noticing that my car has been running a little rough lately (similar to how it ran after I got stage 2 but before I switched to BKR7E's) so I decided to pull the plugs and take a look. The plugs looked fine but the gaps had all opened up pretty significantly. I originally gapped them all to .40 but now they ranged from .46 to just over .50 they have been in the car for approximately 14 months and 30 000 kms (20000 miles) It seems to me that the gap should be changing that much over that time period, is this normal for BKR's? what interval is everybody changing theirs? I replaced mine with new ones since they are cheap as hell is this something that has to be done on a yearly basis with these plugs?

 

i change mine twice a year

 

I would change them at least once a year if not more...

Some people do it every oil change

 

Yeah, the NGKs are so cheap, I was doing a set about every 5K just to be consistent.

 

I'm not surprised. It happens to me and another member here named Maxim_X. We both buy 10 piece boxes all the time of the BKR7E's and change them all the time. I get about 6-7,000 miles out of mine before the gap opens up and there is electrode wear. Face it, they are cheap plugs but damn they work good when they are good.

 

4k on mine

im sticking with platinums.

 

Go with the BKR7EIX Iridiums I got them gap'd at .028 with no problems and no spark blow out. You can get them at Part Source

 

You need to run the gap at 35 not 40 for the stage 2 with 1 step colder plugs. I change my plugs every 5k miles usually.

 

cheap as hell? I thought I bought mine for like 30 bucks maybe more?

 

The regular coppers are like $1.50 each. I can spend the $6 extra every oil change.

 

Those are probably the iridiums (brk7eix)...the regular copper plugs are 2 bucks a pop at most places.

 

Yeah I got iridiums...you guys like copper better?

 

They work the same, and are much cheaper to replace.

 

I go through mine about every 2500 to 5k miles dpending on how the car feels. I can feel when the plugz are starting to go. Recently I changed them after a hard 2500 of racegas and QM passes. I'm sure that I'm a bit harder on plug that the normal person.

Speaking of it I need to go buy another case.

 

I have an MS3 now but I chew though those ngks as well. Im going on my 4th set in a 4 month period.....

 

Actually there is no set in stone gap number for any stage. Every car is different and its better to test out gaps between .30 and .40 to find which one your car likes.

 

What is wrong with the stock ac delco?

 

Eating spark plugs!!!

Num-num-num-num!

 

That's true...maybe I should say recommendation. I ran smaller and was ultra shitty. Iridiums you can't gap (or shouldn't) so you're stuck with .35 and below (I believe).

Stock plugs are ngk6e's I believe... I know they are ngk resistor plugs...not delco.

 

It is a NGK plug but not a bkr6e ( <--assuming that what u meant to type ) I change my BKR's in roughly 5K mile intervals . P0300 misfire code always starts to randomly set when its time for them to go

 

SO what is wrong with the stock plugs?

 

Nothing really, till you drop pulley sizes. Some people see knock after pulleying down and the colder plugs help .

 

Well I dropped pulley sizes and still have stockers in it. Why cant you just get the stockers at a colder temp and not worry about all the space age metals melting and deforming.

 

??

Cause then they wouldnt be stock spark plugs....

They would be one step colder..

Stock brand is NGK...

the bkrs6e is a better spark plug.. if you wanted the bkr6e but in stock form you get the bkr7e...

if you wanna go cheap, get autolite 3922, the stock temp would be 3923, so one step colder would be the 3922...