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Spark Plug Question

Old Nov 4, 2010 | 07:35 AM
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On another forum the question was asked on what spark plug to run in our SC engines. I was always told NGK TR6's, and that's what I got.

Someone over there is saying he heard that you can get 20-40 more hp out of a copper plug since it runs cooler.

I really just don't see it or believe it. When I did a quick google search all I really found was that the coppers wear out in about a year. I thought the TR6's were a cooler running plug anyway.

Anyone have any insight on this? I mean if you can really get 40 more hp out of a plug, hell I may change em every year for that...

Thanks in advance.
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Old Nov 4, 2010 | 08:20 AM
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I just swapped from the TR6's to the BR7EF's and i swear my butt-o-meter felt the difference.... I had approx 2k street miles on the 6's and I changed them because i'm about to dyno with high boost next week and i've read this is a good plug to go with.... Last time i dyno'd, i was fighting kr so the 7's might have helped my kr issue. Best of luck.
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Old Nov 4, 2010 | 09:03 AM
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interresting.
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Old Nov 4, 2010 | 11:23 AM
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d1sc car i just sold , used br7ef's. i liked it because of the non projected tip.
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Old Nov 4, 2010 | 11:38 AM
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ran 7s for awhile, went back to 6s, motor blew up (not becuase of spark) but will be going back to 7s next week.
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Old Nov 4, 2010 | 07:13 PM
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TR6 is a copper plug.


Originally Posted by Domsz06
On another forum the question was asked on what spark plug to run in our SC engines. I was always told NGK TR6's, and that's what I got.

Someone over there is saying he heard that you can get 20-40 more hp out of a copper plug since it runs cooler.

I really just don't see it or believe it. When I did a quick google search all I really found was that the coppers wear out in about a year. I thought the TR6's were a cooler running plug anyway.

Anyone have any insight on this? I mean if you can really get 40 more hp out of a plug, hell I may change em every year for that...

Thanks in advance.
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Old Nov 4, 2010 | 08:18 PM
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i had 6's in mine at 15 psi on 93 octane and never had a problem
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Old Nov 4, 2010 | 08:52 PM
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Originally Posted by onfire
TR6 is a copper plug.
Well technically yes,... but the "tr6" is also available in platinum (tr6gp and ptr6d-13) and iridium (tr6ix).

Yes i googled... sorry lol
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