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Author
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Topic: Colder Plugs For GT40P heads
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racsirx
CAFords OG
Member # 1710
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posted
 
 
I am looking for help for two step colder NGK plug for GT40P heads, I running a Turbo with 15lbs, I went on Turbomustangs.com, it listed all kinds of options, but when I went to Monument Car Parts to double check the info I was getting different answers: this is what I found, which one is correct?
NGK BP7EFS
NGK 5724-8
NGK 5724-9
NGK TR6
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88 Saleen #564
88 GT 331 NOVI2000
88 Coupe TURBO 9.75@142
95 Cobra R #75-SOLD
06 F250
13 BMW AH3
17 GT350 #5556
GOD'S NOT DEAD
Posts: 20750 | From: Concord & Pittsburg, CA | Registered: Aug 2002
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GreyLX
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Member # 5601
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posted
15 + GT40 heads?! What compression ratio are you running?
![[Confused]](confused.gif)
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93GT DSS331 incon800tti
Posts: 337 | Registered: Apr 2005
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RED@7kVERT *8850GT*
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Member # 5909
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posted
i run TR6's in my 01 cobra. theyre 1 step colder than the stock plugs.....
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02 Z06-11.0 @ 132 1.9 60'
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Sold:05 CTS-V-13.1@114
Sold:01 Cobra Vert-12.0@119
Posts: 2432 | From: -916- | Registered: Aug 2005
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racsirx
CAFords OG
Member # 1710
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posted
9:1 compression, it is 15lbs with a turbo, I run nothing but race gas, track only car, thanks for the help but I ended up calling NGK and they said to use NGK 71IX.
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88 Saleen #564
88 GT 331 NOVI2000
88 Coupe TURBO 9.75@142
95 Cobra R #75-SOLD
06 F250
13 BMW AH3
17 GT350 #5556
GOD'S NOT DEAD
Posts: 20750 | From: Concord & Pittsburg, CA | Registered: Aug 2002
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