Joe Schulte

iTrader: (16)

Running the NGK BKR7E's, looking to replace them with something with a longer use interval and if not possible curious as to what other's are running for gap on these if you do have the BKR7E plugs.

If they have an iridium counterpart, and/or if you have other recommendations, feel free to share them.

Thanks.

mrbelvedere

iTrader: (3)

run what you got at 032

Joe Schulte

iTrader: (16)

That is indeed where they're gapped at the moment, and I've experienced no issues.

I just don't like the every other oil change rule on possibly changing them, but for $8 a set if I'm going to pull to inspect them I might as well replace them.

mrbelvedere

iTrader: (3)

well dont change them then

bulletpound

every oil change??? change them every other oil change. i no our engines are hard on these plugs but every 5k for plug change is harsh

qwikredline

I pay 14 each for iridium EX plugs. The stock plugs with stock or stage 2 GM last forwever. Push the envelope with TVS or tune or whatever, not a surprise the plug has shorter life...5 k is a little short imho you can find this information here with the search button:
Spark Plug references.
________________________________________
NGK BKR6ES *STOCK heat range* <-- STOCK Plug

NGK BKR6E "V-Power" *STOCK heat range*

NGK BKR6EGP Platinum Plug *STOCK heat range* BKR6EGP NGK G power Platinum alloy stock heat range stock # 7092

NGK PFR6T-10G "Laser" Platinum *STOCK heat range* race plug

NGK BKR6EIX Iridium *STOCK heat range*


Autolite 3922 Copper Plug *One Range Colder*

NGK BK7RE Copper Plug *One Range Colder*

NGK BKR7E Iridium Plug *One Range Colder*



BKR7EIX NGK IRIDIUM one heat range colder stock # 6664 14 BUX Each in Canada

BKR7E NGK REGULAR V POWER? Stock number #6097 says to use 4644
Cheaper $

NGK BKR8E Iridium Plug *Two Ranges Colder*
NGK BKR9E Iridium Plug *Three Ranges Colder*

Denso Iridium IK24 *Two Ranges Colder*
Denso Iridium IK27 *Three Ranges Colder*


Stock Gap is 0.45"
PSi-Fi Pulley Kit Recommendation gap is 0.28"
Intense-Racing GM-MAF-T/42.5lbs Injectors/2.8" Pulley Gap recommendations is 0.45"
South Florida Pulley Headquarters suggested NGK BK7RE gap is 0.35"

For those of you running 2.8" or below. TWO RANGES COLDER IS RECOMMENDED.


http://www.ngk.com/

mrbelvedere

iTrader: (3)

what god said

Omnigear

iTrader: (4)

still havnt found something concrete that warrants a spark plug change ever other oil change.

mrbelvedere

iTrader: (3)

there is nothing concrete its just how alot of people do things because they run the bost up and they dont want to have any problems

Joe Schulte

iTrader: (16)

...and what I said what "every other" oil change, so roughly a 6-7k interval. I just want to go iridium and got a phone call that reassured that and the benefit of a wider range.

Omnigear

iTrader: (4)

A rule of thumb is, one heat range colder per modification or one heat range colder for every 75–100hp you increase. In identical spark plug types, the difference from one full heat range to the next is the ability to remove 70°C to 100°C from the combustion chamber.

http://www.ngk.com/charglossary.asp?kw=Heat+range

mrbelvedere

iTrader: (3)

good read

Omnigear

iTrader: (4)

but how can you tell if your spark plugs are done for?
misfires? kinda seem of a waste to change plugs if they
dont need to be changed.

Rodimus_Prime

iTrader: (3)

denso 5304 IK20

NGK IX 2667 BKR7EIX

Both of these are the iridium equivalents. I'm in the same boat, getting tired of changing out my BKR7E every few months and I'll be moving the NGK IX as soon as my next set is time to be replaced.

TOP TIP!
Sometimes when you go the auto parts store if you give them the part numbers they can't find them then they always ask for the type of car. DO NOT tell them cobalt SS and then say that your looking for a 1 stage colder plug because they will look at you dumbfounded. When they ask tell them 1994 Audi S4, the BRK7E is the OEM plug so pretty much anything for that car will be a one stage colder plug for our engine.

Joe Schulte

iTrader: (16)

Good looking out on this part, they of course asked what car, tried to explain, dumb-founded look followed.

SuperSilverSaturn

I'm currently trying the autolite dimonds. Interesting sparkplug. My kr is way down.

qwikredline

good advice. smarter people than you and I say thats the one, .032 is good and every oilchange is a little .....like why? I get a season out of spark plugs, absent engine nukes.

Frew

iTrader: (9)

i need something thats a little more resistent to meth, i gotta change those autolites every two- three months

Cefaln452

iTrader: (5)

so whats the iridium replacement????

qwikredline

did you not have a discussion with rodney at ais or someone about two large a nozzle for meth and to reduce the size? or am i wrong. And NGK is the plug to use imho...I have zero issues with meth and iridiums on tvs and high power levels on track...

Frew

iTrader: (9)

I dont think so? I only have 2-2gph nozzles, which ngks do you use at what gap? Im using those autolite 3922 gapped to .035"

mrbelvedere

iTrader: (3)

some people dont mind changing them every other oil change some do i change them when needed

Cefaln452

iTrader: (5)

??///

Bika

iTrader: (3)

There is no need to replace copper plugs that often even wtih meth. I have been running atleast 60% meth on my bkr7e's for 25k miles. they still look fine. I will replace them when I bring the car out this spring just because.

unless you are pushing about 400whp, you do not need 2 step colder either.

Rodimus_Prime

iTrader: (3)

NGK IX 2667 BKR7EIX

listed earlier in the thread........