What Spark Plugs?
Thread Starter
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From: Somers NY
What Spark Plugs?
I have an 05 its stock with only a CAI (Vararam) and a Tune... it has run a best of 12.08 @ 115 mph... that was when it had 11,000 miles on it..
I drive it a few times a week (no stop & go traffic) and Drag Race it app 2 times a month... I looked at the plugs & they looked ok...
Any suggestions as to what plug I should go to.. or even "should I put in new plugs yet" (it now has 19,000 miles on it (still original plugs)
If I get a new set should I go 1 range cooler ? or stay with Factory heat range ?
Thanks.. Oops ..I see the exact same question... Mods, if you want you can delete this one.. I'll try myself..
I drive it a few times a week (no stop & go traffic) and Drag Race it app 2 times a month... I looked at the plugs & they looked ok...
Any suggestions as to what plug I should go to.. or even "should I put in new plugs yet" (it now has 19,000 miles on it (still original plugs)
If I get a new set should I go 1 range cooler ? or stay with Factory heat range ?
Thanks.. Oops ..I see the exact same question... Mods, if you want you can delete this one.. I'll try myself..
Last edited by jpee; Apr 9, 2010 at 01:24 PM.
Safety Car
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From: shavertown Pa.
I would stay with the stock heat range and use your favorite plug type as long as it isn't champion you will be OK.
Plugs loose there ability to fire the fuel over time, I have changed them for people who say they notice a difference in power and fuel economy.
When I raced is super stock we ran champs for the 1/4 mile and changed them every run, they were a great 1 time plug but didn't last for everyday driving. IMHO
Plugs loose there ability to fire the fuel over time, I have changed them for people who say they notice a difference in power and fuel economy.
When I raced is super stock we ran champs for the 1/4 mile and changed them every run, they were a great 1 time plug but didn't last for everyday driving. IMHO
Former Vendor
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From: Lubbock Texas
Factory heat range will be fine. We run a lot of the NGK TR-55 on stock bottom-end cars without power adders. You can get the iridium plugs if you would like. Either one will be fine for what you are doing and a lot cheaper than something like a Delco plug.
Jon
Jon
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From: Somers NY
Thanks guys... I guess I'll stay with the stock heat range...you think there is any difference between NGK and AC Delco ?
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. . . and Gene has the best price on AC-Delco Iridium spark plugs, and they also are best at preventing the "Service Charging System" message on your DIC. 
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From: Reading PA
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From: Somers NY
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From: NJ..."the way I saw it, everyone takes a beating sometimes."
Possible stupid question but would you set the gap different if you have a H/C car as opposed to a bolt-on?
Thread Starter
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From: Somers NY
Same with the heat range...if racing you want a colder plug, if a lot of DD in traffic go to a Hotter plug...
Some racers even "index" the plugs that is when they tighten them the make sure they know which way the gap is located inside the cylender....
I'm not saying plugs are the MOST IMPORTANT thing in an engine, but having the right plug, & correct gap can make a difference... JMO
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From: Short Hills, NJ
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They're rated for 100k mile but yes, it might be time. 
Hmm then again, maybe ya shouldn't swap them out LOL. 
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From: Portland OR
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Originally Posted by Jon@Texas-Speed
We run a lot of the NGK TR-55 on stock bottom-end cars without power adders.
We run a lot of the NGK TR-55 on stock bottom-end cars without power adders.
Originally Posted by dennis50nj
JP... Julio recommended tr55 to me, have been running them ever since
JP... Julio recommended tr55 to me, have been running them ever since
We offer the best deal on the planet for NGK and MSD Supercondcutor wires.
Reason we like them so much, besides the lowest resistance in a helicoil wire they are multi angle and allow you to bend the wire away from the exhaust manifold or header.
The irdium plug will last a lot longer before needing to be checked or changed is the advantage to them. NGK offer a few different irdiums but the AC-Delco's are less money by a few a couple bucks/piece. We offer them as well.
