Thread: Spark plug Question

Got a question, zzp says NGK TR55IX plugs should only be used on stock GTP's, and that they recommend TR6IX for around a 3.4 setup.On the safely modding thread, blue says the TR6 is 2 heat ranges cooler, and the TR55 should be used for around a 3.4 setup.Im only wanting 1 heat range cooler than stock for a GTP.

Which is one range cooler, TR55IX or TR6IX?

Not trying to bash the safely modding thread or anything, i just want to make shure b4 i buy.I would hate to have to send anything back to zzp.Ive had issues with there "customer service" b4.lol

Autolite 605's then.

No idea on NGKs.

well bud why do you want a cooler spark on a stock car?

3.4 MPS, 1.9 aluminum roller rockers,headers.You know this brandon.REED ME SIG!

I have no experience with ngk but I run al104's

Originally Posted by goldgp

3.4 MPS, 1.9 aluminum roller rockers,headers.You know this brandon.REED ME SIG!

Originally Posted by goldgp

Im only wanting 1 heat range cooler than stock for a GTP.

Lol yes I know that. But I was just going off of what ya said there. No sense in throwing in cooler plugs until you got the 3.4 setup going on. Unless that is you're just speaking futuristic there

Setup is going on brandon, besides, all i asked was which one is 1 step cooler.Regardless of what setup im running.I need to update sig

Sweet, need to get back up there and see these fine Pontiacs. And your company might be tolerated..

Just to close this thread out, i did get tr6IX's, they are 1 heat range cooler than stock for ngk.TR55IX is the stocker.