[Z06] Best plug to use.
Thread Starter
Instructor
Joined: Jan 2007
Posts: 163
Likes: 0
From: Frisco Texas
Best plug to use.
I read all the threads and know this could bring on a lot of opinions......But I have never liked bosch plugs,too gimicky and the laws of phisics dont support more than one ground(least path of resistance).I just purchased an 02Z and it has those platinum 4 ground plugs.I have a high rpm missfire a lot like a rev limiter.I suspect the bosch.They dont seem to look bad,but who the heck can tell.Do I just **** can the bosch and go with stock?
Advanced
Joined: Jan 2009
Posts: 70
Likes: 0
From: Columbus Ohio
it could be the plugs
I agree with you on the bosch. There is no reason why you need more than one ground. A big waste a money. Also you can't gap them even though they say they don't need it. If the gap is to far away it won't spark right. If it's to close your going to fry the plugs in no time and there won't be a ground. Go with the NGK. For a few $$ a piece you might solve your issue or learn you need to dig deeper. You go look at anybody who races anything. Motorcross, Go-karts, Sprint cars to top fuel dragsters. Single ground correctly gapped and almost always NGK. Now I'm not saying bosch is bad because its not. It's a spark plug. But multiple grounds is a just a sales pitch someone threw out to bring in addition $$$. I guess that part worked.
Instructor
Joined: May 2006
Posts: 160
Likes: 0
Not sure if I would go this way with my Z06, but this is my experience with the Bosch 4 ground plugs.
Several years ago I bought a 94 Nissan Pathfinder with about 35k miles on it. Right after purchase I installed the Bosch 4 ground plugs. I now have 201k miles on the odometer and have not changed the plugs since then. Last December it passed smog here in California with flying colors.
I'm quite happy with them.
When it comes time for me to change the plugs in the Z06 I of course will do some reading before purchasing/installing. I would like to know what, if any, real difference people have experienced with various plugs. Any dyno charts?
Darryl
Several years ago I bought a 94 Nissan Pathfinder with about 35k miles on it. Right after purchase I installed the Bosch 4 ground plugs. I now have 201k miles on the odometer and have not changed the plugs since then. Last December it passed smog here in California with flying colors.
I'm quite happy with them.
When it comes time for me to change the plugs in the Z06 I of course will do some reading before purchasing/installing. I would like to know what, if any, real difference people have experienced with various plugs. Any dyno charts?
Darryl
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Racer
Joined: Feb 2008
Posts: 290
Likes: 0
From: Sammamish WA
When an auto/mechanical engineer spends a lot of time, months, poring over heaps of data to come up with a decision to use a plug on a flagship GM product, in a company that has been building vehicles (with internal combustion engines) for longer than most on this forum are alive, there is a very good reason. Value/performance/field safety/durability of effectiveness etc. An aftermarket product (not including OEM suppliers) who is not subjected to the totures of mfg tests, cant hold a candle to the OEMs.
I would say stick with the OEMs. You wont get any more complete burn etc, if it is stock.
If it is modded, and i dont mean LED/exhaust mods, it is a different story.
I would say stick with the OEMs. You wont get any more complete burn etc, if it is stock.
If it is modded, and i dont mean LED/exhaust mods, it is a different story.
