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#1
03-13-2006, 02:00 AM
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Plugs changed , lost power
What a job , My knees hurt ,my arms are scratched up , back and legs are sore . And it does not run as good . I thought the new Iridium plugs were the way to go , maybe I expected something that was not there . Maybe it will just increase my fuel mileage .
It feels like it has more torque ,but less power . The plug boots were literally glued on . I had had to use a 2 foot long torque wrench to break the old plugs free . That was scary . Anyone else have this happen ? Rob 
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2000 Trans Am six speed Blackbird .Fast enough stock! 2005 Grand Prix. 2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped! 1988 JEEP Cherokee: Lifted, Sons new toy. 
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#2
03-13-2006, 08:25 AM
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Re: Plugs changed , lost power
Go with AC Delco plugs.. not that iridium crap.
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#5
03-14-2006, 12:59 AM
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Re: Plugs changed , lost power
i went from iridiums to +4's and i lost power..i was planning on going back to iridiums.. is it because your 'birds not made for hot plugs? i heard the iridiums are good because they get pretty hot and thats good for getting rid of crud on it.. O_o
all i know is my old iridiums were totally clean..all burnt with nothing caked on..im plannign on going back to iridiums..
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Car:  1997 M6 SS Camaro [ white ] 285's in the back all else = STOCK.
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#6
03-14-2006, 02:21 AM
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Re: Plugs changed , lost power
I had 59K on thew factory AC delco plugs and the gap was nearly .080 " .My book says .060" .
More torque : when pulling off at an idle , letting the clutch out . It did not pull the idle down as much . I think that I have been used to driving in colder days and it always feels stronger in the cold . On my test drive , it was 80 degrees and low humidity. I work grave yard shift , and at night it feels better than before . Forgot about these things when I posted . Rob
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2000 Trans Am six speed Blackbird .Fast enough stock! 2005 Grand Prix. 2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped! 1988 JEEP Cherokee: Lifted, Sons new toy.
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#7
03-15-2006, 08:53 AM
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Re: Plugs changed , lost power
Quote:
over time ive tried new plugs. ive noticed that the +2 or even the +4s are a waste of money and ehres why i think so andc i may be wrong. obviously the distibutor/coilpacks will only put out so much power. only soo much power can run thrugh your plug wires meaning that you can only have so much spark coming out the plug end. sure split it up give it 4 differnt sparking points. but it has to split the power up to send it to 4 differnt ones giving you smaller spark from each post sometimes ive seen and heard only 3 out of the 4 are speaking depnding on the power going into the plug. id stick with the AC delco plugs single tipped plugs. dont waste your money on splitfires or platinums 2s or anything else. like i said all this is my opinion and may be wrong but it seems logical to me.
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#9
03-15-2006, 07:16 PM
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Re: Plugs changed , lost power
Quote:
Go with NGK TR55s. Friends run them in their stock/heads&cam/Nitrous cars with good results I run NGK TR6 for boost. I just think Iridium/+2/+4/Plats are a WASTE OF $$$$ Also, on your power loss, I'd check your plug gap and make sure you have them in there nice and snug.
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DarkblueTA GT70, FMIC, Alky-water injection, Hooker Cat back, 208/230 .549/.579 121LSA Cam, forged diamond pistons/eagle rods, LS6 block, Lakewood LCAs, BMR STB/PHRB/Sway Bars, poly torque arm bushing, Spec Stage 4i clutch, B&M Ripper Shifter, SLP Subframes, 60# injectors, KYB AGX shocks/struts, Moser 12 bolt(373 gears, 33 spline axles, posi, ta girdle/etc/etc/etc) and HPTuner kit 2007 Nissan Titan Daily Driver. 2* advance 
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#10
03-15-2006, 07:51 PM
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Re: Plugs changed , lost power
Well I guess I'm the only one here who actually likes the NGK iridiums. Since I've put them in my car, about 10k miles ago, it's ran great with no problems. They're the only spark plugs I ever recommend.
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- Jason 1995 Pontiac Firebird   User Guidelines | VB Codes Explained | AF Merchandise "Each of us, is in the scheme of things, insignificant. But millions of insignificant people, doing a tiny bit, can add up to be a very significant force."
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#11
03-15-2006, 08:54 PM
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Re: Plugs changed , lost power
i like iridiums, i just don't like the ones with more than one electrode.
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95 Z71 Silverado 4x4 ext. cab Mods- Flowmaster Exhaust,Intake
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#12
03-15-2006, 09:02 PM
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Re: Plugs changed , lost power
The NGK iridiums are no better than the regular NGK plugs.
They just last 3 times longer. But cost 4 times as much.
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1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#13
03-15-2006, 09:27 PM
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Re: Plugs changed , lost power
Well mine were $44.69 (for 6) and come with a 2 year warranty (yeah, I keep my receipts). So it really wan't too much out of my pocket for me to complain.
__________________
- Jason 1995 Pontiac Firebird User Guidelines | VB Codes Explained | AF Merchandise "Each of us, is in the scheme of things, insignificant. But millions of insignificant people, doing a tiny bit, can add up to be a very significant force."
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#15
03-15-2006, 09:42 PM
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Re: Plugs changed , lost power
I only run Delcos, I just wish they didnt cost 7 bucks a pop... I have nothing but problems running every other kind of plug in any of my cars.
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