ive been running these plugs for over a year now, ive heard minimal good and alot of bad lately, anyone have ne input and should i jus go back to a normal ngk plug or something? suggestions?
i never liked them, alot of misfires
I tried the expensive plugs and they misfire with the best of them. I like my autolite platinum's alot, plus they are cheap.
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I have had nothing but good luck with the stocker Delco plugs.
Nothing but bad luck and crappy mileage with Bosch plugs. Even the expensive ones.
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1999 Pontiac Trans Am WS.6 #1747
Some blinker fluid and a couple muffler bearings.
i have them and no complaints yet... except that high-rev misfire under constant 5000-6000rpm use.
some say they suck, some say they dont. i like my NGK TR6 plugs
Im a Xbox 360 fanboy...and damn proud of it!!
Let me put it this way. Went to the part store and the guy behind the counter and some other guys into muscle cars and a guy there with a sport compact were there. they all said to stay away from them. Too many people have had problem and they are the most returned spark plug they have or those who have it replace them within a month or two. They are known not to be gapped properly and you can't gap them yourself. Eitherway electricty is going to take the short rout so you may still only have one electrode sparking.
2004 Grand Prix GTP (Competition Group)
SOLD-->1999 Z24 5M-#30 to register on JBO
"You can please some of the people some of the time but you can't please all the people'
all the time
I don't like bosch stick with delco.
good plugs? Denso is where the good plugs are at.
I was a retard, and now I'm permanently banned.
My Bosch plugs just planned sucked, got delco platinum now and runs 100% better.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
99redz24 wrote:some say they suck, some say they dont. i like my NGK TR6 plugs
are yours gapped same as factory?
I was a retard, and now I'm permanently banned.
Spotabee Racing wrote:good plugs? Denso is where the good plugs are at.
had a set of denso iridiums foul out on me in my cav, so i personally would have to disagree with ya there...never have had a prob with the AC plats though
thanks guys, wish i woulda found this out a year ago!!
boshe platinum 4's are no good. the guy who said the cashier that said they are bad WAS right. the same thing happened to me, the people behind the counter said stick to delcos and i went with boshe.
the technology involving 4 tips is a gag.
the spark can only goto one tip, so if you have 1 already, thats all you need.
the platinum on my boshce plugs were fried when i took them out. my car suffered from misfires, and poor idling at a stop. that was prollie due to the poor spark in the boshe plugs.
I put my stock plugs back in that originally had 40,000 miles on them and they ran way better and my idling problem stopped and i increased gas mileage again.
i hear densos are good, but unless your forced induction you should only use them. I hear they work best with those setups to have a colder spark. since heat control is an issue with forced induction.
thats my two cents,
also, dont you get more power from a hotter spark? ...
AkA joe m.
Ricer ELIMINATOR!
Spotabee Racing wrote:99redz24 wrote:some say they suck, some say they dont. i like my NGK TR6 plugs
are yours gapped same as factory?
mine are gapped at .039
Im a Xbox 360 fanboy...and damn proud of it!!
changed my plugs tnite to ngk g power, single tip, work so much better, cleaner idle and ive found lots more pick up
I have the AC Delcs. no problems here but then again my engine is mostly stock
Went to the Bosch +4s years ago. I just replaced them when I hit 70000 miles. I don't believe in a plug that will last for over 100000 miles. I have never had a problem with the Bosch +4. The Z runs fine and no misfires or any idle problems.
98 Z24
RIP Specks
i tried them, but stuck with ac delco.
