who makes a good spark plug?

realestdriver · 11-20-2009, 07:35 PM

I pulled three front plugs today, all of them were cracked. Going to buy new ones tomorrow, any suggestions?

Mike Jung · 11-20-2009, 07:40 PM

For what application ?

I would say NGK Iridium IX, part # TR55IX spark plugs.
It is what GM uses in the later model years GA's.

(GM had NGK make their iridium spark plugs.)

& replace the spark plug wires too, if it has been a while.
The AC Delco ones are ok/good enough.

alerored04 · 11-20-2009, 08:37 PM

Anything except bosch if it is a v6. the 3400's seem to hate Bosch's.

blario · 11-20-2009, 09:52 PM

x2 on NGK Iridium.
Great performance plus Iridium tips for long service intervals (don't know if you tried pulling the rear plugs yet but believe me, not something you want to do often).

BOOTMASTER · 11-20-2009, 10:01 PM

blair, that sig cartoon with MJ is awesome....

(not you mike jung

)

cardude007617 · 11-20-2009, 11:31 PM

cant lose with NGK, as they are a OE supplier for a few car companies

realestdriver · 11-21-2009, 09:25 AM

alright thanx
it was my ngk plantiums tht were cracked, back row was ok
replacing all and wires

MMGT1 · 11-21-2009, 09:47 AM

I use 'el cheepo copper plugs and replace every 20K. I have to run 2 ranges colder because of compression so I use Autolite 104's gapped at 50 tho instead of 60 tho.

IanGT99 · 11-21-2009, 12:14 PM

I had the Bosch +2's for nearly 4 years and I'm now running the Bosch platinum single tip plugs. I've seen no problems with them at all. Putting in the platinums actually erased some of the knocking problems I was having. NGK Iridiums are the best for the GA IMO, but anything with a single platinum tip is just fine if you're not running insane performance mods. As has been said, the rear plugs are a total b*tch to replace.

MMGT1 · 11-21-2009, 12:46 PM

I can do those rears in my sleep now, LOL. But that comes after many times using my wifes compac mirror to get that dam #5!! Thats the bish one

IanGT99 · 11-21-2009, 02:05 PM

Let me correct my original post... from reading many reports, the Autolite platinum plugs seem to not do so well in our cars. No one can really say why, but they seem to cause misfires. Stick with AC Delco, Bosch, or even Champion plugs.

Jake · 11-21-2009, 02:41 PM

I've always ran NGK's.

Never had a problem.

Malaclypse · 11-22-2009, 09:27 PM

Quote:

Originally Posted by IanGT99

I had the Bosch +2's for nearly 4 years and I'm now running the Bosch platinum single tip plugs. I've seen no problems with them at all. Putting in the platinums actually erased some of the knocking problems I was having. NGK Iridiums are the best for the GA IMO, but anything with a single platinum tip is just fine if you're not running insane performance mods. As has been said, the rear plugs are a total b*tch to replace.

Have you compared the size of the platinum tip in the Bosch plugs vs Delco? Its basically a pinprick. The material is going to wear down alot faster than it should.

I'd still reccomend sticking with Delco or NGK over anything else. Platinum works fine but Iridium does as well. At the price point (and my discount) I'll take platinum.

blario · 11-23-2009, 12:29 AM

All the more reason to use NGK Iridium.
A spark will more readily jump from a corner or a fine point on a plug.
The tip measures 0.6mm on an Iridium plug.
And the iridium has an extremely high melting point at 4471 deg F. Which is 1200 degrees more than platinum. <(thank you Wikipedia)

IanGT99 · 11-25-2009, 10:03 AM

Quote:

Originally Posted by Malaclypse

Have you compared the size of the platinum tip in the Bosch plugs vs Delco? Its basically a pinprick. The material is going to wear down alot faster than it should.

I'd still reccomend sticking with Delco or NGK over anything else. Platinum works fine but Iridium does as well. At the price point (and my discount) I'll take platinum.

You know, I got to thinking after I said I had the Bosch plugs and I don't. I'm running the Champion platinum plugs. They seem to work well and they were inexpensive.

SSRacer · 11-25-2009, 11:35 AM

I run AC Delco Iridiums....that are made by NKG...

ioseida · 11-30-2009, 01:13 AM

What about pulstar any one has tried those?? they go for about 15 bucks a piece dnt need a spark plug change yet but soon I will..pulstar says they got like 10times more watts and saves gas

AaronGTR · 11-30-2009, 06:57 AM

Yeah, they claim all kinds of things.... have yet to see any proof. No way I'd pay $15 a piece for some plugs. Even if they actually do make any gains, it wouldn't be a large enough difference to justify $78 for plugs.

Still, I'd love to see someone dyno test these some day. Problem is most aren't willing to spend the money.

IanGT99 · 11-30-2009, 10:35 AM

^^^ Just like electronics. When it first comes out, it's really expensive and not very widely used. However, if the technology is good enough, it will get less expensive to produce, less expensive to buy, and more widely accepted. (i.e. VCRs, DVDs, and now BluRay) If the Pulstars are really this radical new design concept which give all sorts of hp and mileage gains, they'll stick around and become more cost effective. They just aren't right now.

[ChaosweaveR] · 11-30-2009, 11:05 AM

Mags have tasted the Pulstar plugs and have seen WHP gains. I know Modified Mag did a test on them with a 350Z.

11-20-2009, 07:35 PM	#1
realestdriver 3500 AKA: MJ Join Date: Sep 2008 Location: Ruston, LA Posts: 273 Vehicle: 1999 Grand Am GT 2dr	who makes a good spark plug? I pulled three front plugs today, all of them were cracked. Going to buy new ones tomorrow, any suggestions? __________________ The Goods

11-20-2009, 07:40 PM	#2
Mike Jung 400 hp & 410 lb-ft AKA: Mike Join Date: Aug 2002 Location: Toronto, Ontario, Canada Posts: 4,671 Vehicle: '14 Camaro SS RS coupe	For what application ? I would say NGK Iridium IX, part # TR55IX spark plugs. It is what GM uses in the later model years GA's. (GM had NGK make their iridium spark plugs.) & replace the spark plug wires too, if it has been a while. The AC Delco ones are ok/good enough. Last edited by Mike Jung; 11-20-2009 at 07:42 PM.

11-20-2009, 08:37 PM	#3
alerored04 GAGT - Member AKA: Matt Join Date: Apr 2006 Location: New Prague, MN Age: 35 Posts: 702 Vehicle: 2001 Oldmobile Alero	Anything except bosch if it is a v6. the 3400's seem to hate Bosch's. __________________ Lots of mods cost lots of $$ http://www.cardomain.com/ride/2598719/1

11-20-2009, 09:52 PM	#4
blario Ubernoob AKA: Blair Join Date: Mar 2008 Location: British columbia Age: 44 Posts: 53 Vehicle: 1999 Grand Am SE	x2 on NGK Iridium. Great performance plus Iridium tips for long service intervals (don't know if you tried pulling the rear plugs yet but believe me, not something you want to do often). __________________

11-20-2009, 11:31 PM	#6
cardude007617 mmm turbo boost AKA: Paul Join Date: Dec 2006 Location: Milwaukee WI Age: 31 Posts: 4,870 Vehicle: 2005 WRX Sedan 5 Speed	cant lose with NGK, as they are a OE supplier for a few car companies __________________ http://www.cardomain.com/ride/2565053 -2005 World Rally Blue Subaru Impreza WRX Sedan: Tanabe Touring 3in catback, ERZ bellmouth catted downpipe, catless uppipe, SPT Pink springs, SPT short shifter, SPT intake, stereo, Cobb Accessport stage II, Prosport boost/oil temp/volt gauges, 35%, 17x8 Rota Torques, F/R strut braces It's what makes a Subaru, a Subaru.

11-20-2009, 10:01 PM	#5
BOOTMASTER i like JL AUDIO AKA: Bruce Join Date: Apr 2006 Location: Zion, IL Posts: 429 Vehicle: 2002 gt coupe	blair, that sig cartoon with MJ is awesome.... (not you mike jung )

11-21-2009, 09:25 AM	#7
realestdriver 3500 AKA: MJ Join Date: Sep 2008 Location: Ruston, LA Posts: 273 Vehicle: 1999 Grand Am GT 2dr	alright thanx it was my ngk plantiums tht were cracked, back row was ok replacing all and wires __________________ The Goods

11-21-2009, 09:47 AM	#8
MMGT1 GAGT - Member AKA: Paul Join Date: Oct 2005 Location: Canada Age: 49 Posts: 347 Vehicle: 2000 Firebird TA WS6	I use 'el cheepo copper plugs and replace every 20K. I have to run 2 ranges colder because of compression so I use Autolite 104's gapped at 50 tho instead of 60 tho.

11-21-2009, 12:14 PM	#9
IanGT99 GAGT - Senior Member AKA: Ian Join Date: Apr 2003 Location: Moon Township, PA Age: 38 Posts: 1,880 Vehicle: 07 Honda Ridgeline RTL	I had the Bosch +2's for nearly 4 years and I'm now running the Bosch platinum single tip plugs. I've seen no problems with them at all. Putting in the platinums actually erased some of the knocking problems I was having. NGK Iridiums are the best for the GA IMO, but anything with a single platinum tip is just fine if you're not running insane performance mods. As has been said, the rear plugs are a total b*tch to replace. __________________ Tire Size Calculator

11-21-2009, 12:46 PM	#10
MMGT1 GAGT - Member AKA: Paul Join Date: Oct 2005 Location: Canada Age: 49 Posts: 347 Vehicle: 2000 Firebird TA WS6	I can do those rears in my sleep now, LOL. But that comes after many times using my wifes compac mirror to get that dam #5!! Thats the bish one

11-21-2009, 02:05 PM	#11
IanGT99 GAGT - Senior Member AKA: Ian Join Date: Apr 2003 Location: Moon Township, PA Age: 38 Posts: 1,880 Vehicle: 07 Honda Ridgeline RTL	Let me correct my original post... from reading many reports, the Autolite platinum plugs seem to not do so well in our cars. No one can really say why, but they seem to cause misfires. Stick with AC Delco, Bosch, or even Champion plugs. __________________ Tire Size Calculator

11-21-2009, 02:41 PM	#12
Jake BRAAAPPP AKA: Jake Join Date: Feb 2007 Location: Cen Cal Age: 34 Posts: 3,725 Vehicle: Hellcat Challenger	I've always ran NGK's. Never had a problem.

11-23-2009, 12:29 AM	#14
blario Ubernoob AKA: Blair Join Date: Mar 2008 Location: British columbia Age: 44 Posts: 53 Vehicle: 1999 Grand Am SE	All the more reason to use NGK Iridium. A spark will more readily jump from a corner or a fine point on a plug. The tip measures 0.6mm on an Iridium plug. And the iridium has an extremely high melting point at 4471 deg F. Which is 1200 degrees more than platinum. <(thank you Wikipedia) __________________

11-25-2009, 11:35 AM	#16
SSRacer Speed Racer AKA: Sean Join Date: Mar 2003 Location: Somewhere Age: 43 Posts: 1,440 Vehicle: 2002 Grand Am GT Sedan	I run AC Delco Iridiums....that are made by NKG... __________________ 2002 Pontiac Grand Am GT1 http://cardomain.com/id/ssgohan Don't take life too seriously, you'll never get out alive. If it ain't broke, don't Microsoft it.

11-30-2009, 01:13 AM	#17
ioseida THE PREDATOR AKA: Ivan Join Date: Oct 2008 Location: Los Angeles CA Posts: 102 Vehicle: 2001 Grand Am GT1	What about pulstar any one has tried those?? they go for about 15 bucks a piece dnt need a spark plug change yet but soon I will..pulstar says they got like 10times more watts and saves gas

11-30-2009, 06:57 AM	#18
AaronGTR BlingWithBallz AKA: Aaron Join Date: Aug 2002 Location: Detroit area, MI Age: 43 Posts: 12,254 Vehicle: 2000 Grand Am GT1 2dr	Yeah, they claim all kinds of things.... have yet to see any proof. No way I'd pay $15 a piece for some plugs. Even if they actually do make any gains, it wouldn't be a large enough difference to justify $78 for plugs. Still, I'd love to see someone dyno test these some day. Problem is most aren't willing to spend the money. __________________ The few, the proud, the boosted! 13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011) See it here. the total package.

11-30-2009, 10:35 AM	#19
IanGT99 GAGT - Senior Member AKA: Ian Join Date: Apr 2003 Location: Moon Township, PA Age: 38 Posts: 1,880 Vehicle: 07 Honda Ridgeline RTL	^^^ Just like electronics. When it first comes out, it's really expensive and not very widely used. However, if the technology is good enough, it will get less expensive to produce, less expensive to buy, and more widely accepted. (i.e. VCRs, DVDs, and now BluRay) If the Pulstars are really this radical new design concept which give all sorts of hp and mileage gains, they'll stick around and become more cost effective. They just aren't right now. __________________ Tire Size Calculator

11-30-2009, 11:05 AM	#20
[ChaosweaveR] So that's Vtec... AKA: Chris Join Date: Jul 2007 Location: Medford, NY Age: 34 Posts: 6,783 Vehicle: ‘15 Honda Accord Sport	Mags have tasted the Pulstar plugs and have seen WHP gains. I know Modified Mag did a test on them with a 350Z. __________________ 2015 Honda Accord Sport Sedan: K24W 2003 Mitsubishi Galant ES: 4G64

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode