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Spark Plugs for High Compression
Hi, I woul like to know what is a best choice for spark plugs for a 1979 911 SC with 10:5.1 high compression pistons and EVO 2 camshafts profile. I'm asking about heat range. The brand does't matter, I woul prefer Bosch but NGK would be ok. Please if you have recomendations and opinions, please let me know. Thanks.
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1972 911T 1991 Mazda RX-7 Turbo II Are you car loosing power? When was last time you service your fuel injectors? Dirty fuel injectors? Why no try a complete fuel injector cleaning service and return the dignity to you car. Visit www.rennsportfuel.com and we will return your injectors back to life! |
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abit off center
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I am using the NGK dcpr6e 12mm plugs in a twin plug 3.2 10:5.1 dme engine, I dont think this is really that high of compression?
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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Do you have problems with that heat range, like detonation and flooding?
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1972 911T 1991 Mazda RX-7 Turbo II Are you car loosing power? When was last time you service your fuel injectors? Dirty fuel injectors? Why no try a complete fuel injector cleaning service and return the dignity to you car. Visit www.rennsportfuel.com and we will return your injectors back to life! |
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drag racing the short bus
Join Date: May 2002
Location: Location, Location...
Posts: 21,983
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Is 92 the highest octane fuel Puerto Rico has? How is your engine behaving?
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The Terror of Tiny Town |
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93 octane is available. The engine is totally rebuilt with brand new parts.
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1972 911T 1991 Mazda RX-7 Turbo II Are you car loosing power? When was last time you service your fuel injectors? Dirty fuel injectors? Why no try a complete fuel injector cleaning service and return the dignity to you car. Visit www.rennsportfuel.com and we will return your injectors back to life! Last edited by Nitrometano; 12-13-2005 at 05:16 PM.. |
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drag racing the short bus
Join Date: May 2002
Location: Location, Location...
Posts: 21,983
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Quote:
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The Terror of Tiny Town |
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The car is for street/strip.
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1972 911T 1991 Mazda RX-7 Turbo II Are you car loosing power? When was last time you service your fuel injectors? Dirty fuel injectors? Why no try a complete fuel injector cleaning service and return the dignity to you car. Visit www.rennsportfuel.com and we will return your injectors back to life! |
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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I'm using 7 range in my '80 3.2 , which is single plug, on 94 octane. The CR is somewhere between 10 and 10.5:1. No pinging in this climate.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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What are the stock spark plug heat range for a stock '79 911 SC 3.0?
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1972 911T 1991 Mazda RX-7 Turbo II Are you car loosing power? When was last time you service your fuel injectors? Dirty fuel injectors? Why no try a complete fuel injector cleaning service and return the dignity to you car. Visit www.rennsportfuel.com and we will return your injectors back to life! |
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