Black Plague

iTrader: (13)

Are the AC Delco Iridium plugs part# 41-985 pre gaped at .040 ok to use on a 150 shot?

JL ws-6

iTrader: (50)

probably not a good idea.

Brett H

iTrader: (2)

Isn't the Iridium a platinum plug? Platinum plugs and nitrous are a no-no.

ATVracr

iTrader: (5)

Why do you say that?

I dont know the heat range of the plug he posted but Iridium is fine for N20 use.

JL ws-6

iTrader: (50)

If I remember correctly, that plug is a stock heat range.

Black Plague

iTrader: (13)

So maybe for a 100 shot I should be good?

Black Plague

iTrader: (13)

Well hell ill probably just get some denso it-20 one step colder then.

JL ws-6

iTrader: (50)

Go at least one range colder to be safe. I don't know how a iridium plug and nitrous are gonna react, I know that platnium and nitrous are a bad combo, not 100% on the iridium....

But, for the $ that those cost, why not just get some cheap 2 dollar a piece tr6's and call it a day? You can buy quite a few of those for what it would cost ya for 8 iridium plugs FWIW

ATVracr

iTrader: (5)

Iridium's are fine for N20.

JL is right for 100-150 just throw some TR6's in it.

Black Plague

iTrader: (13)

I daily drive the car and I dont want to chang plugs often at all! I have TR55 in now and they need to be changed so I am going to try the Denso Iridium one range colder on a 150 hit dry! I am going to Simple Quick racing to get this thing tuned next month and see what it puts down N/A and on a 150 hit!