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TR7/TR8 what gap?

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Old 03-30-2009, 03:58 AM
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Default TR7/TR8 what gap?

Stock compression, 175 shot, just under 600rwhp

I'm running TR6's right now and they have been fine for the last year through 10 second passes an all. However, I'm upping the spray from 150 to 175 and figured I would play it safe and go colder.

I only spray the car once every month at private track events so I'm thinking the 7's and a somewhat conservative tune would work (not sure if the 8's would fowl under normal driving and garage queening ). To be honest I will probably try them both. My main concern is what i should gap them too.


After searching I have found conflicting info and am hoping to get some solid advice...

Last edited by xxtheonlyxx; 03-30-2009 at 04:03 AM.
Old 03-30-2009, 09:28 AM
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You'll never find a definate answer because not all combos are going to like the same set up. I would start them out wide and work your way tighter. I think that the 8's are overkill for your combo.

Nick


Originally Posted by xxtheonlyxx
Stock compression, 175 shot, just under 600rwhp

I'm running TR6's right now and they have been fine for the last year through 10 second passes an all. However, I'm upping the spray from 150 to 175 and figured I would play it safe and go colder.

I only spray the car once every month at private track events so I'm thinking the 7's and a somewhat conservative tune would work (not sure if the 8's would fowl under normal driving and garage queening ). To be honest I will probably try them both. My main concern is what i should gap them too.


After searching I have found conflicting info and am hoping to get some solid advice...
Old 03-30-2009, 10:16 AM
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I would agree with 8's being overkill. I would start with the 6's still and pull a few plugs after a pass to see how they look.
Old 03-30-2009, 10:32 AM
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Do you intend to do any tuning on the vehicle when you go from a 150 to 175?

-Will
Old 03-30-2009, 03:46 PM
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Cam swap and tune next week... along with possibly changing to the 7s. Im looking for a good starting gap to work from. My tr6's are fine. If they can handle more spray Ill just stay with them.
Old 03-30-2009, 04:42 PM
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I run mine around .030-.035 I think they are about .032 gaps.
Old 03-30-2009, 07:46 PM
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Cool, thanks. I have my 6's at 34. Ill start there and work my way down.
Old 03-31-2009, 11:42 AM
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i have done 0.035 for both my 6's and 7's
Old 04-01-2009, 01:44 PM
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.032

I run tr8's in my cam only LS1. runs fine just cruising around the streets.
Have Tr9's in it atm. doesn't run as smooth as the 8's.



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