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cam/stall/spray what gap?

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Old Aug 7, 2009 | 12:01 AM
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Default cam/stall/spray what gap?

i'm runing a dyno tune dry kit on my z and i put a set of colder plugs in and they were gapped at stock gap. im running a fm 14 on 114 lsa with a yank 3600 stall and 4.10 gears, 28" m/t slicks and i was wondering if i could gap the plugs around 42-45 for the all motor runs and still spray it with out having problems. i'm only looking to spray a 50/75 shot before i have a dyno tune, because right now its just mail tuned for the cam.
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Old Aug 7, 2009 | 10:16 AM
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Originally Posted by rob scott
i'm runing a dyno tune dry kit on my z and i put a set of colder plugs in and they were gapped at stock gap. im running a fm 14 on 114 lsa with a yank 3600 stall and 4.10 gears, 28" m/t slicks and i was wondering if i could gap the plugs around 42-45 for the all motor runs and still spray it with out having problems. i'm only looking to spray a 50/75 shot before i have a dyno tune, because right now its just mail tuned for the cam.
What plugs are they? Some of the non-projected tip'ed plugs don't like too much gap.

Nick
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Old Aug 7, 2009 | 10:18 AM
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.035 is as high as I would go on the jug.
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Old Aug 7, 2009 | 11:26 AM
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Chris@NitroDaves
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IF they are the TR6 plugs i'd go no higher than a .38 gap but it would be better to gap the plugs around the 33-35 range.

-Chris
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Old Aug 7, 2009 | 12:07 PM
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if i remember right i think they were bosch, but i will check to make sure. if i put tr6's in at .35 will that be ok to run without the spray or will i have to change plugs to run without the spray?
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Old Aug 7, 2009 | 12:11 PM
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You can run TR6's gapped at .035 all the time.
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Old Aug 7, 2009 | 01:13 PM
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i run tr6's gapped at .035 all the time with no issues!
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Old Aug 8, 2009 | 12:21 AM
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After seeing some of the pics of tr-6 becoming blow torches I run these: 7 NGK 3346 BR7EF Non-Projected 2 steps colder w/ NON-projected tip
Gapped at 28 with between 100-150 shot. 408 with 11.25 compression.
No problems running them on the street, no idle problems either.
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Old Aug 8, 2009 | 01:31 AM
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tr6 at .o35 and thats the highest for sure
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Old Aug 10, 2009 | 12:18 AM
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what gap would you run on stock motor with just a 100 shot and the AR94 autolites which is the TR7
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Old Aug 10, 2009 | 10:16 AM
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How much ET off the bottle do you think you would be giving up running on plugs for nitrous?
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