Spark Plugs

[plaganis]

Hi All,

I know a lot of Skyline drivers out there use copper plugs as an alternative to platium and irridium plugs. Especially with modifications copper plugs are easier to tune and are less prone to misfiring.

However does anyone know how long these plugs will last (km's approx) with normal driving use. I don't mind using these plugs but changing them too often would be a pain.

Thanks,

Paul.

[plaganis]

Sorry, Model of car is R33 GTS-T Ser 1.

[MANWHOR3]

70 years

[TommO]

I'd be interested to know as well... i've had mine in my car for 15,000kms or so, and they "seem" ok.

[RB30-POWER]

This was asked a few days ago.

Coppers will do easy 40k, well before you should have any trouble due to the gap being larger then when first installed from the wear.

[siksII]

i had my last set in for less than 7000kms, changed them yesterday.

they were not completely stuffed but the car was idling rough for about the last 1000kms.

i changed them with another set of coppers and right away the idle is now perfect again, and at low revs there is less vibration. so i guess their life depends on how picky you are.

[RB30-POWER]

Thats the beauty isn't it.

Can change them as often as you want, they are only a few bucks each

I can understand iridium/platinum in motors such as the V6 in the magna that you have to actually remove the intake runners etc to change and replace gaskets etc in the process.

However RB20/25/26 are one of the easiest motors to change plugs on.

[siksII]

well i would say far from eaiest i mean most small 4cyl cars u pull off the coils or leads and there u go, with rb25 u have to pull a whole lot of crap off to get to them.

although i leave the coil cover off so i can get the coils and plugs out without touching the intake piping but still a squeeze!

[7yphon]

Yer I find it a bitch also and with the add or a Strut Brace makes it a little harder.

Hey also where do you buy these copper Plugs and how much are they ?

Edited December 23, 2005 by 7yphon

[_8OO5TED_]

i just fitted some ngk iridium plugs to my near stock (exhaust, pod) R33 GTS-t S1 and it runs perfect, I was told I should get around 30,000kms out of them.

[RB30-POWER]

Iridium should be like 80,000-100,000

Thats why you pay so much, because they are designed to last longer.

A standard copper plug will do 40,000 easy...

[mid life crisis]

so what plug should i be using in a standed gtst r33 in copper i prefer ngk brand does anyone have a actual plug number i can use?

[RB30-POWER]

bcpr6es (0.8mm gap)

bcpr6es-11 (1.1mm gap)

I run the -11 version in all my RB's with over 200rwkw without any spark issues what so ever.

If your coils are sus though, maybe take the 0.8mm gap plugs.