Spark plugs.
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bosch plugs
Originally Posted by 91zxtt
Guys, I think the new guy will fit in well. He's already insulting FORD's! It only took 6 posts. That must be a record!
Anyways, please elaborate on the overall crapiness of BOSCH plugs. I don't mean the +2 or +4, because i agree with you there. Those are a joke. What's wrong with the standard Bosch Platinum? There's a study on this post that shows the Bosch out-performing the NGK.
Anyways, please elaborate on the overall crapiness of BOSCH plugs. I don't mean the +2 or +4, because i agree with you there. Those are a joke. What's wrong with the standard Bosch Platinum? There's a study on this post that shows the Bosch out-performing the NGK.
Registered User
Joined: Nov 2003
Posts: 3,672
From: Gerber, CA
Ok, I agree that the platinum surface area of the Bosch plugs is small when compared to the NGK, but one of the links listed previous showed that the Bosch out-performed the NGK's. I've had Bosch Platinums in my car for almost 5 years and I've never had a problem. Eventhough the Bosch don't look as good as the NGK, I'll take performance over looks anyday. Justun, do you have a link to a study, or anything else that supports the NGK perform better?
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plugs
Originally Posted by 91zxtt
Ok, I agree that the platinum surface area of the Bosch plugs is small when compared to the NGK, but one of the links listed previous showed that the Bosch out-performed the NGK's. I've had Bosch Platinums in my car for almost 5 years and I've never had a problem. Eventhough the Bosch don't look as good as the NGK, I'll take performance over looks anyday. Justun, do you have a link to a study, or anything else that supports the NGK perform better?
Registered User
Joined: Nov 2003
Posts: 3,672
From: Gerber, CA
Originally Posted by justun ross
ok, i was a rep for a couple of car parts groups (3m, bendix, wix, ngk, etc.) for a couple of years. when it comes to plugs or anything for that matter, use what YOU like. if it works for you,great.i'm just going by tests, schooling and so on. i also have a FIAT(ok thats enough laughing)and i usually use autolite plugs in it. but look, nissan could use ANY plug they wanted. they do not use bosch. the thing to really get your attention though is this, most european auto manufacturers don't use bosch either. by the way i represented for bosch too! they make great switches and relays and stuff. just not spark plugs. justun ross
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just a note
Originally Posted by emo236
all about the NGKs. And you have....hahahaha...a...hahahahaha....FIAT? hahaha, jk jk. You said that was enough laughing but I had to add more. Fiat's aren't that bad.
Thread Starter
confuzed member
Joined: Jul 2003
Posts: 3,074
From: Salinas, CA
I found this the other day. THIS is why NGK plugs work best in our cars!
http://twinturbo.net/net/viewmsg.asp...&msg_id=872173
http://twinturbo.net/net/viewmsg.asp...&msg_id=872173
Registered User
Joined: Nov 2003
Posts: 3,672
From: Gerber, CA
I stand very corrected. That makes perfect sense. Thanx EMO. You and Justun were right all along. That's why these forums are so great. We all get learn. You had mentioned earlier that we're supposed to use a #6 plug for stage 3+. Do you have a part #? I know, I'm lazy. Help a brotha out. I'm not looking forward to changing my plugs again. I don't know how Wreckere does it. 
Thread Starter
confuzed member
Joined: Jul 2003
Posts: 3,074
From: Salinas, CA
Dan's the Man
Joined: Apr 2004
Posts: 332
From: Peterborough, Ontario
The NGK's fit best, therefore work best.
I was considering the same thing recently. I read enough from everyone's post to stick with the NGK's. So, that's what went in. This is one of those areas where pretty much everyone has been of the same opinion.
I was considering the same thing recently. I read enough from everyone's post to stick with the NGK's. So, that's what went in. This is one of those areas where pretty much everyone has been of the same opinion.
Registered User
Joined: Apr 2004
Posts: 39
From: Omaha, NE
I'd like to give my 2 cents on some of the plug theories since no one has mentioned it.
First, the +2 and +4 plugs. Electricity takes the path of least resistance, the less resistance the stonger the spark. Giving the spark two or four optional paths increases the odds of the strongest spark possible.
Platinum/Iridium...look the Bosch is so small. The idea of using harder materials is so that the tip can be machined as small as possible. This lets the current sent to the plug to accumulate at the tip, which should help increase the odds of the strongest spark possible.
Notice I never said anything about increased hp, dont know how much these things help, dont care. All I do know is they should increase the odds of a stronger spark more often.
As far as the plugs not fitting into the chamber, well that would seem like a serious enough problem that none of these other points matter. And the whole fouling the Boschs because of the small tip, I would say you have other problems.
First, the +2 and +4 plugs. Electricity takes the path of least resistance, the less resistance the stonger the spark. Giving the spark two or four optional paths increases the odds of the strongest spark possible.
Platinum/Iridium...look the Bosch is so small. The idea of using harder materials is so that the tip can be machined as small as possible. This lets the current sent to the plug to accumulate at the tip, which should help increase the odds of the strongest spark possible.
Notice I never said anything about increased hp, dont know how much these things help, dont care. All I do know is they should increase the odds of a stronger spark more often.
As far as the plugs not fitting into the chamber, well that would seem like a serious enough problem that none of these other points matter. And the whole fouling the Boschs because of the small tip, I would say you have other problems.
Administrative Brown Guy
Joined: Jun 2003
Posts: 5,406
From: Ontario, Canada
Iridiums are really meant for high compression motors & NA cars and should not really be run a TT's, platinum should do the job fine, i tryed irdiums in my TT a long time ago, it made it ping like a **** under boost. I know a guy who runs iridiums in his NA, and seems to be doing pretty good with em, but be careful NOT to use the Denso ones, as they are too short for the 300zx head cylinders, that would cause the spark to get masked since it isnt long enough. Use the ones made by HKS or NGK...same ****. The reason i wouldnt want to run em, is that the iridium tips are extremely small and very easy to break off (0.4~0.7mm tip) under boost that would not be a good situation.
Final answer, they are OK to run in a NA, but not TT's, they claim better fuel milage, better overall performance, better acceleration, better idle qualities, but then again, dont all spark plug companies claim this crap on their plugs?
Final answer, they are OK to run in a NA, but not TT's, they claim better fuel milage, better overall performance, better acceleration, better idle qualities, but then again, dont all spark plug companies claim this crap on their plugs?
Registered User
Joined: Apr 2016
Posts: 7
Thanks for all the great input! I am about to change my plugs for the first time. Got the tools for the job. My Z is a 1991 300zx tt and the only mods I have going right now is 91 octane safe tune on ecu, and HKS cat back exhaust. Soon to have more later. but my question is, are there gaskets for the balance tube? Any problems using NgK platinum's?
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