Spark Plugs

[subie]

Hi guys,

just about to get my car service and thinking about getting plugs changed as well

well, the problm is.. after reading alot on the plugs topics.. lots of people here are recommend thing like .8 gap with 5 heat rate ..

but, i'm getting IRIDIUM BCPR5EIX-11 for my car

what you guys reckon about these plugs? will they be ok on my car with mods like.. pod, fmic, 3'haust and so on

and will they make any back fire? (at the moment, I have no problem with it)

Cheers

Edited April 22, 2008 by subie

[abu]

Get some BCPR6ES plugs man

NGK copper - they come gapped to 0.8mm (you'd double check of course)

Never had a problem with them running up to 15psi, thats whats currently in my car and hopefully it should see in excess of 18psi next week without any issues!

I've heard there is no extra gains to be seen with the IRIDIUM plugs plus the element is supposed to be quiet brittle which causes them to break after a short period of time

Plus there is no way I'd pay that much for spark plugs!

[R31Nismoid]

Dont get Iridi.

Just the normal coppers are cheaper and work no problem

If your running upped boost, you might need to gap the coppers down from 1.1 to say 1.0 or .9

Just see how you go

[Douse]

I am running iridiums in my RB20 and was having no problems till I upped the boost to about 12-14 psi

It then started misfiring at high RPM.

Took em out and they were gapped to 1.1mm, so reduced the gap to 0.8mm and have had not a problem since. The car runs great now.

Edited April 22, 2008 by Douse

[subie]

hey, my mechanic recomment me ngk BKR7E

what u guys reckon about this ones?

Cheers

[TTT]

hey, my mechanic recomment me ngk BKR7E

what u guys reckon about this ones?

Cheers

no..

you must have missed this before..

so

BCPR6ES

Edited April 23, 2008 by GTST

[subie]

Cheers mate

[abu]

no..

you must have missed this before..

so

BCPR6ES

lol

[subie]

I didn't missed but my mechanic just told me to get BKR7E and he said they are the same apart from BKR7E is colder

which is better than? but I think I wll stick with BCPR6ES as u guys recomment

Cheers

[r33cruiser]

i was always told by my reputable mechanic to "MAKE BLOODY SURE IT HAS A 7 IN THERE"..refers to heatrange im told :S

i just go into autobarn buy coppers with a heatrange of 7...thats all i know , and all i need to know.

[subie]

By the way,

can anyone tell me.. what's the difference between BCPR and BKR in NGK copper plugs????

cheers

Edited April 23, 2008 by subie

[limpus]

No one is going to tell you the difference because it does not matter...they have said before:

BCPR6ES

Or just to confuse you and give you a harder time...you can also use:

BCPR6E

[QWK32]

BC and BK is the thred type. they are both the same except the height from the gasket to the top terminal on the BK plug is 2.5mm shorter than on the BC plug. so if you use the BK plug you coils may not make a good contact wih the spark plug.

its all in this chart:

it wont let me upload my chart for some reason. i'll try again later.

anyway its sort of like this one, but the one i have has heaps more detail.

http://www.wakularacing.com/NGK%20CHART.gif

just use the BCPR6ES plugs, they are proven to be good. if you cant get them you can also use BCPR6ES-11 and regap to 0.8mm.

[subie]

QWK32,

thanks alots mate

I'll get BCPR6ES plugs for my 32

Cheers