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I think you may be out of luck finding copper plugs. I don’t believe anyone makes them. I’m running nitrous on my 08 with the 370z plugs and have no problems. Courtesy parts is a good place to look for the 370z plugs.
I'm sorry, but I don't mean to attack anyone by this but it seems as though all I've heard about the 370z stock spark plugs working fine for nitrous has been straight out speculation of he said, she said... I dunno much on the subject, so I myself would rely on just that but there's no supportive information on any of these threads where it's stated that the 370z spark plugs could be used. I just want closure that the 370's spark plugs would definitely be better than just leaving my stock 350z plugs while running nitrous.
I'm sorry, but I don't mean to attack anyone by this but it seems as though all I've heard about the 370z stock spark plugs working fine for nitrous has been straight out speculation of he said, she said... I dunno much on the subject, so I myself would rely on just that but there's no supportive information on any of these threads where it's stated that the 370z spark plugs could be used. I just want closure that the 370's spark plugs would definitely be better than just leaving my stock 350z plugs while running nitrous.
I never ran nitrous on my Z with my stock plug only on 370z plugs, but after numerous track runs and 2 dyno sessions I have no fouled plugs or idling problems. I went through four bottles and then checked my plugs.
I never ran nitrous on my Z with my stock plug only on 370z plugs, but after numerous track runs and 2 dyno sessions I have no fouled plugs or idling problems. I went through four bottles and then checked my plugs.
Thanks for your input Guy, at least we know there isn't a negative affect running those spark plugs as of now.. but then again, I've read that 1 step colder plugs aren't really need until you step up to 100 shot.
Install is a little tricky, but by no means difficult. You will need to remove intakes of course and throttle bodies in order to get to the rear coil packs.
They are irridum plugs though, the 370 ones, correct? Still not a great idea with larger shots of nitrous. When I get around to doing it, i'll cross the stock plugs and find some coppers that work. There are hundreds of spark plugs out there, i'm sure I can find something that will physically work, 1-2 steps colder, in a copper plug. I'd bet it will be made by NGK as well
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Old car: 06 Cobalt SS ..... New car: 08 Nismo, #1456
One Step Colder Copper Spark Plugs for VQ35HR
