iridium sparkplug sizes

[pr0nix]

Hey guys hows it going? I jst brought an 89 Exa and ive been readin the posts about the iridium sparkplugs cause im about to have a full tune and service. Does anybody know the model number for Iridium NGK plugs to suit the standard CA 18 De?
Thankz

[EXRace]

Try NGK's website. Otherwise go to your local Auto shop and they can tell you.

[EXRace]

From NGK australia -


1987 - on Nissan EXA Twin Cam CA18DE

Recommended Plug PFR6A-11 GAP 1.1
Iridium Option BCPR6EIX-11 GAP 1.1

Recommended Plug would be platinum I pretty sure. RRP from AutoOne is $30 each. Iridium I have no Idea

[pr0nix]

thanks for thoes sizes. Ive orderd in a set thru discount auto's for $112, i'll keep u posted on how thier goin one i drop them in

thankz

[dirtrace49]

Do those plugs realy make that much of a differnce? I've been useing the Bosch Platinum plug and I've never had a prob with them. They last longer then the NGK's but in power, I don't see a diff.I've had them last me 129000k miles and when I took them out they looked just like the new ones I bought.

[Lonx]

I've bought two sets of NGK Platinum's for around $68-73/set from Autopro. I think Nissan only sell them for about $80/set.

The iridium's will work just as well if not better as Iridium has less electrical resistance than Platinum. Their 'rated' life may be about 10 - 20 thousand k's less but your car will certainly not lose power with them. They have been proven to provide a very small gain (like 3-4kw on a 200 - 300kw car) over platinum but its nothing worth raving about.

[dirtrace49]

Thanks for the reply Dude.:)