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

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Old 03-29-2012, 11:59 PM   #1
usnavydoc
 
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High performance spark plugs?

A friend of mine recommended a mechanic to help me install any parts I need in my Camaro.

The mechanic said I should replace the stock spark plugs and wires with high performance ones, as the stock plugs are design to last 100K miles but not for performance. He said he could replace the spark plugs with high performance ones for $20.

Does a so called high performance spark plug really make any difference? $20 doesn't sound too bad.
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Old 03-30-2012, 01:50 AM   #2
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Wouldnt waste the money. Stock plugs are very good.
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Old 03-30-2012, 02:40 AM   #3
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I would only worry about plugs with forced induction, and that's only to play with gaps and temp ranges. Most of the crap they sell as "performance" is really just that...CRAP! If you are doing a track day you might run some copper plugs 1 heat range colder to fight knock, but it's not for horsepower gains. On the street that wouldn't make sense.
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Old 03-30-2012, 12:13 PM   #4
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Go ahead and replace them, this way you can waste your time and money trying to figure out why it runs like crap with new plugs.
High Performace plugs are B/S. You wont find a better performing spark plug for a stock engine than whats in it. Unless your boosted or using squeeze dont waste your time and money.
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Old 03-30-2012, 04:58 PM   #5
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Plug Wires

You are ok with the stock plugs, but a good wire will benefit your Camaro. Heat kills the effectiveness of plug wires causing them to have more resistance then when cold. So a well insulated wire can improve the performance and horsepower of your car. The materials used in the MTI Racing wires is the same insulating material used in the IRL racing series cars that regularly top 200mph and can generate massive amounts of heat. You will never see a thin uninsulated wire on these cars and why should you have them on your pride and joy. This is a mod any one can do themselves.

Check out the MTI Racing Wires here.



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Old 03-31-2012, 05:04 AM   #6
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i gone for Granatelli wires due to the heat effect here ( heat from headers and outside temperature).
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Old 04-01-2012, 06:11 PM   #7
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Thanks for all the replies. I am going to research what wires I should get...the headers I just installed are pretty hot.
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Old 04-01-2012, 07:31 PM   #8
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I did some research and decided to give the Granatellis a try. This video I found made me curious in trying them:



I will do my own dyno testing when I get a chance...my car isn't as modified as the Camaro in the video, which has twin turbos, so I don't expect to gain much hp, if any.
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Old 04-01-2012, 08:45 PM   #9
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I would actually go with an NGK plug before I'd bother with a new wire. I have found differences in knock tolerance depending on the plug I've run...the stock plugs are ok, but I have had more success tuning for NA power in my own car running NGK plugs. I average about 30K on the car between winters (when I put it away) and I throw a set of plugs at it once a year, it costs like $16 or something total, and these cars are so easy to work on, it takes about 15-20 minutes. If you care enough about the car to put headers on and tune it in the first place, I feel it's worth it.
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Old 04-02-2012, 10:25 PM   #10
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Been looking at these http://www.densott.com/ but i really dunno without any 3rd party testing if they actually work, anyone got a dyno i can borrow? lol
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Old 04-02-2012, 10:49 PM   #11
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I watched a episode of horsepower tv where they put these http://www.e3sparkplugs.com/ to the test and they outperformed the stock plugs.
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Old 04-03-2012, 01:03 AM   #12
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I watched a episode of horsepower tv where they put these http://www.e3sparkplugs.com/ to the test and they outperformed the stock plugs.
Gimmicky plugs are just that, gimmicky. They get you to pay $10+ for a spark plug and for your money, you get worse performance.
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Old 04-03-2012, 04:45 AM   #13
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I don't claim to be genius about plugs, but Jannetty is and he will tell you real quick that our stock plugs are very high quality and except in very rare circumstances do not need to be changed.
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Old 01-26-2014, 09:21 PM   #14
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Old 01-26-2014, 09:31 PM   #15
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Old 01-28-2014, 03:15 PM   #16
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Ive always been told, when it comes to spark plugs, always use what the vehicle came with. None of these new fangled triple fire, quad fire, diamond fire plugs are any better than what is already in your car. Now I did replace my plug wires with JBA power cables due to I was nervous that my headers may make the factory wires too hot, the JBA wires are rated at 1200°. Plus I just wanted red plug wires
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Old 01-28-2014, 04:24 PM   #17
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Quote:
Originally Posted by MikeOD View Post
I would actually go with an NGK plug before I'd bother with a new wire. I have found differences in knock tolerance depending on the plug I've run...the stock plugs are ok, but I have had more success tuning for NA power in my own car running NGK plugs. I average about 30K on the car between winters (when I put it away) and I throw a set of plugs at it once a year, it costs like $16 or something total, and these cars are so easy to work on, it takes about 15-20 minutes. If you care enough about the car to put headers on and tune it in the first place, I feel it's worth it.
This is how it should be done. 1 step colder is what lots of tuners recommend. 15-20 minutes and $20 a year will make the car idle better and reduce knock just like MikeOD says. Mine had plenty of KR on 91 and the stock tune. Keep your stock plugs and pull timing to eliminate the knock if that's what floats your boat.
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