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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 12-10-2011, 10:05 AM   #1
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Best SPARK PLUGS for performance

Hey guys I was told to put NGK TR-55 or NGK-TR-6 on my engine for cooler performance capabilities. What's your take. Also do anyone have a different spark plug recommendation.
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Old 12-10-2011, 10:30 AM   #2
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Above plugs are good, Bosch +4 work well too

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Old 12-10-2011, 05:50 PM   #3
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yea thats my question too.
for which one do i go???
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Old 12-10-2011, 08:57 PM   #4
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Anybody try Brisk?
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Old 12-10-2011, 10:01 PM   #5
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Stock GM plugs for a NA car or the GM ZR1 plug on a boosted car.
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Old 12-10-2011, 10:22 PM   #6
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AC Delco plugs are actually some bad ass plugs, on my turbo SS Cobalt I was running the stock AC Delco plug on E85 at 23psi with a little bit tighter gap than factory(0.030) and was still getting about 20,000 miles out of them... which for a boosted car at that kind of psi, is great and even at 20,000 miles they still looked pretty good(but changing them was literally a 10 minute job on it)
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Old 12-10-2011, 11:28 PM   #7
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Stock GM plugs for a NA car or the GM ZR1 plug on a boosted car.
Please do not use the ls9/ls7 plug in a boosted car. You are asking for serious problems running a projected tip plug that heat range in an engine with a power adder.

BTW if you tuner requires you to install a stock plug into your engine for driveability reasons you should find another tuner.
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Old 12-11-2011, 07:28 AM   #8
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So here`s a question similar in nature ... I read somewhere a while back that you can noticeably increase the responsiveness of the engine by going 1 step hotter BUT also going up on the octane of your gas. In the example, the guy was going from reg to premiun so that`s a 4 point increase (87 to 91).

Anyone heard of that before ... on a NA engine only.
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Old 12-11-2011, 07:41 AM   #9
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I've got full bolt ons on my LS3 and am about 100 HP over stock with my most recent tune. What's the best plug for my setup??
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Old 12-11-2011, 08:33 AM   #10
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Denso Iridiums are what I generally have run in all my boosted vehicles. (98 TT cobra, 05 Saleen SC, 06 Lotus Exige SC.)

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Old 12-11-2011, 09:38 AM   #11
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I've got full bolt ons on my LS3 and am about 100 HP over stock with my most recent tune. What's the best plug for my setup??
I would run the NGK TR6's. One colder range.
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Old 12-11-2011, 10:19 AM   #12
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I use NGK TR6 plugs in my S/C LS3.
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Old 12-11-2011, 10:30 AM   #13
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We run the TR6 spark plugs on our Formula D race cars and have had no issues with them all season.
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Old 12-11-2011, 10:30 AM   #14
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We run the TR6 spark plugs on our Formula D race cars and have had no issues with them all season.
+1 for TR6 plugs
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Old 12-11-2011, 10:53 AM   #15
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Are you boosted?

I tried to run the NGK Iridium's when I first installed my SC. I had serious KR with them no matter what we did with the
AFR etc.

This was on a 3.6 pulley @ 8psi. Went with the TR6's and all the KR went away without even adjusting the AFR. HP increased by 20 after regaining the timing.

A little further down the road I am on a 3.4 pulley now with a blower cam @ 9psi on 91 only (Cali!) and still 0 KR running the same TR6's...

For a non-boosted car the Iridium's should be awesome, I use them in my bikes and truck with great results and they last forever.
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Old 12-11-2011, 12:04 PM   #16
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in a NA car we always run a TR-55, in a boosted car we always run a TR-6, you can do what u like.
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Old 12-11-2011, 03:33 PM   #17
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Quote:
Originally Posted by Sam88gta1 View Post
Please do not use the ls9/ls7 plug in a boosted car. You are asking for serious problems running a projected tip plug that heat range in an engine with a power adder.

BTW if you tuner requires you to install a stock plug into your engine for driveability reasons you should find another tuner.
What's your reason for not liking a projected tip plug such as the la9/ls7?


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Old 12-11-2011, 09:00 PM   #18
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What's your reason for not liking a projected tip plug such as the la9/ls7?


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Those plugs were installed in the stock engines for longevity reasons. The LS7/LS9 plug was first introduced in the LS7 engines and are well known for causing preignition in STOCK applications. They were then used in the LS9 and also cause the same problems when making power. Some make the argument that the LS9 sparkplug was engineered for a boosted application when in fact it is the same plug used in the ls7. It lives in the LS9 under boost due to the ls9 cylinder head intake port design and the piston having oil squirting jets keeping them cool at all times. This is not a plug that should be considered for any application that is under boost.
If you have to run a hotter projected tip plug for a stable idle or as a cure for driveability issues you simply need a new tuner.
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Old 12-11-2011, 09:19 PM   #19
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I just placed my order for TR6's from texas speed. $18 for 8, not bad...
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Old 12-11-2011, 09:58 PM   #20
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Quote:
Originally Posted by Sam88gta1 View Post
Those plugs were installed in the stock engines for longevity reasons. The LS7/LS9 plug was first introduced in the LS7 engines and are well known for causing preignition in STOCK applications. They were then used in the LS9 and also cause the same problems when making power. Some make the argument that the LS9 sparkplug was engineered for a boosted application when in fact it is the same plug used in the ls7. It lives in the LS9 under boost due to the ls9 cylinder head intake port design and the piston having oil squirting jets keeping them cool at all times. This is not a plug that should be considered for any application that is under boost.
If you have to run a hotter projected tip plug for a stable idle or as a cure for driveability issues you simply need a new tuner.
Good info. That is what I am running in my single turbo setup from from my tuner but was not required. He is well know and had a long thread on here about plugs. With a LS3 single turbo what would you recommend?


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Old 12-11-2011, 10:17 PM   #21
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Good info. That is what I am running in my single turbo setup from from my tuner but was not required. He is well know and had a long thread on here about plugs. With a LS3 single turbo what would you recommend?


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Depends on the compression ,boost ,fuel used and power output.
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Old 12-11-2011, 10:18 PM   #22
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why are u guys talkin "boosted"?
i think he doesnt have a "boosted car"
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Old 12-11-2011, 10:23 PM   #23
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Originally Posted by L99CAMA2011 View Post
Hey guys I was told to put NGK TR-55 or NGK-TR-6 on my engine for cooler performance capabilities. What's your take. Also do anyone have a different spark plug recommendation.
I will start the thread over for him.
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Old 12-11-2011, 10:38 PM   #24
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Sorry for the thread jack!



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Old 12-12-2011, 12:02 AM   #25
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You folks are talking about the - NGK TR6 V Power, not the iridium's correct?
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