NGK's advice for MSP

[mspeedpro]

who cares, just replace the copper after a year, theyre $8....

 

[03BlkMicaSPD]

I will tell you that with the copper plugs, I get alot of fouling, at the track it almost stalled when I hit 2nd gear. when I was done running the idle would drop then come back up, drop then..... So I replaced my plugs and they were completely black, but not worn, and after I replaced my plugs it ran like a new car untill they fouled, I would hope that Iridium would help prevent fouling.

 

[03BlkMicaSPD]

Also, some of the hard starting is caused by the fouling of the plugs that our insanely rich cars causes. Put new plugs in it and notice how it fires up instantly.

 

[unwrittenLaw]

Yeah..I've read that the copper ones probably should be changed every 3 oil changes or so...guess it depends

 

[MSPDAVE125]

No plug fouling with the iridiums for me. Gapped to .030 and very clean after 6 months

 

[KyRaceFan]

I just put in bkr7e's. The car idles smoother, and it seems to be smoother up top. Im gonna try some denso iridiums next time i change the plugs.

 

[mazdadan]

What about glow plugs?

Nope, no glow plugs on a Cummins Diesel.....I've got a manifold grid heater. The Ford Powerstokes use glow plugs though.

 

[wicked]

if i wre you guys id listen to what NGK says
they have tested the sh*t out of there plugs,and i garuntee
they know more about plugs then any one in this forum
but its not my car

 

[Glowmunkey]

I'd worry about Iridiums acting as a hot-spot in the combustion chamber... Personally I'd rather run the risk of fouling copper plugs... sure, iridium and platinum may last longer, but platinum can create pre-ignition, iridium may as well. Obviously iridium won't be able to transfer heat as well as copper, that's just basic metalurgy...

And why would you take NGK's word for it? They're in the business to sell a product, what they say should be taken with a grain of salt. They're a good company, but I personally wouldn't use anything but copper plugs while running more than stock boost.

Just my $0.02

 

[Black Majik MSP]

I got rough idle when I installed my BKR7Es...I think I'll be switching to the BKR7EIX. Thanks for the info! (thumb)

 

[soupedmsp]

ok from what i know about plugs if the heat rating is the same than that iridium plug would be a better choice right? bkr7e vs.bkr7eix correct me if im wrong

 

[speedfrk]

rough idle did you gap them properly?

 

[unwrittenLaw]

I just pulled out my ngk coppers and put in the Denso iridium...
Haven't noticed any negative changes yet..seems smooth, etc.
I'm hoping they'll get a better burn, and maybe fix the pinging I get at higher rmp's...They're a little more expensive, but they should last longer...

 

[Black Majik MSP]

rough idle did you gap them properly?

Gapped to .32 (the # I got from researching on here) & I checked the install several times. Only had them in for about 400 miles before I got sick of the idle & put the stock plugs back.

 

[Glowmunkey]

I just pulled out my ngk coppers and put in the Denso iridium...
Haven't noticed any negative changes yet..seems smooth, etc.
I'm hoping they'll get a better burn, and maybe fix the pinging I get at higher rmp's...They're a little more expensive, but they should last longer...

They should actually make pinging worse... greater chance at pre-ignition...

 

[servoeyes]

or the pinging is being caused by fuel pooling due to the richness...turboge had this problem when tuning. he was getting detonation at overly rich levels (yes it's possible)...maybe the iridiums would actually help that out.

 

[robsir00]

I used the iridiums in My old 2000 Civic sir and found that the pinging at high rpm when using 89 octane gas in the winter went away . With 93 octane in the summer I found that alot less fumes were coming out of the exhaust with the iridiums buring the fuel more efficiantly . Theses are what im installing in my speed when I do my first oil change. Just my 2 cents.

They should actually make pinging worse... greater chance at pre-ignition...

 

[unwrittenLaw]

or the pinging is being caused by fuel pooling due to the richness...turboge had this problem when tuning. he was getting detonation at overly rich levels (yes it's possible)...maybe the iridiums would actually help that out.

this is why i'm trying them out

so far so good...no pinging.....when i pulled the ngk coppers out they were fairly black....

 

[phantom]

anyone knows where I can get NGK BKR7EIX for the best price? I got the ZFR6FIX-11 from the local store but I don't think that is the correct one right?

also, is denso better plug that NGK, if yes, what is the denso part # equivalent to BKR7EIX??

 

[Stormtrooper77]

IK22 (Denso)

ps. Good luck finding any of these plugs here. I asked if they can be specially ordered and their responses were "they don't even come up with a part number on file, how can we order them?"