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spark plugs for high boost

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Old Jun 22, 2008 | 07:16 PM
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Default spark plugs for high boost
as in my sig i need to know what spark plugs are you high hp boost guys are using and what gap. did try to use the search but only found answer to nos motors.
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Old Jun 22, 2008 | 08:11 PM
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NGK tr8 would be the most common.
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Old Jun 22, 2008 | 10:21 PM
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Originally Posted by black98ws6ta
NGK tr8 would be the most common.
No such thing as a TR-8 Maybe an NGK 8 but the box denotes nothing of the such of TR anything, anywhere on it.

Generally the folks are using R5671A-8's, 9's, or 10's depending on fuel and power level you are looking for. One of these days, people will figure out the denotation of tr only pertains the 5's, 55's, and 6's...As in TR-55, etc.
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Old Jun 22, 2008 | 10:44 PM
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I just said that because I didnt have the time to type all that out. Good job on knowing you part numbers.
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Old Jun 23, 2008 | 01:02 PM
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NGK TR8's gapped between .025 and .035.
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Old Jun 23, 2008 | 01:05 PM
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Autolite Racing Plugs
AR3934. These work well also.
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Old Jun 23, 2008 | 02:51 PM
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Originally Posted by Pro Stock John
NGK TR8's gapped between .025 and .035.
you have a part number?
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Old Jun 23, 2008 | 02:53 PM
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I think they've been posted a few times I have a few boxes of plugs somewhere in the garage.
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Old Jun 23, 2008 | 06:45 PM
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well thanks alot guys. hey hunter how is your car comming? when you gonna bring that monster to one of our chi town street car kaos? Lets make some money lol
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Old Jun 23, 2008 | 06:58 PM
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Originally Posted by bumpin_records
well thanks alot guys. hey hunter how is your car comming? when you gonna bring that monster to one of our chi town street car kaos? Lets make some money lol
LOL!! It's coming along. Just waiting on a few parts to arrive. After that, I am going for some 8.50's or a little quicker.
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Old Jun 23, 2008 | 08:27 PM
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Originally Posted by HUNTER02SS
Autolite Racing Plugs
AR3934. These work well also.
these are what i have also
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Old Jun 24, 2008 | 08:58 PM
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autolite 103 iridium .035 gap 8psi woking great
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Old Jun 24, 2008 | 08:59 PM
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NGK-8's stock # is 7317

David
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Old Jun 24, 2008 | 09:04 PM
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I guess I am not running high boost.. TR6's gapped at .035
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Old Jun 25, 2008 | 12:44 PM
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I have made over 750 to the tires many times on 6's. More then that I run 8's though.
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Old Jun 25, 2008 | 01:39 PM
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Vince you should run TR8's not TR6's.
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Old Jun 25, 2008 | 01:41 PM
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Autolite 3911s! Way better than NGK Tr5,6,7,8. I can run them @ .025 and idles great.
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Old Jun 25, 2008 | 02:04 PM
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I've run Autolite 3911's too, good plug.
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Old Jun 25, 2008 | 06:32 PM
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Originally Posted by Pro Stock John
Vince you should run TR8's not TR6's.
Well per the instructions that come with my kit it says TR6's. I will investigate.
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Old Jun 26, 2008 | 08:41 AM
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NGK 10's with F2 blower, 25-30psi, gapped at .018, 1200+rwhp
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