another spark plug question
05-30-2011, 11:27 PM
#1
Pro
Thread Starter
another spark plug question
I was using NGK TR6 with 125 shot of nitrous, but just bumped it up to 150. Do I keep the same plug or go up to thr TR7s? What's the gap for the TR7s if that's what I need? Thanks
05-31-2011, 11:04 AM
#2
Run the TR7's @.035 and pull a minimum of 5* timing to be safe. The TR6's have the extended tip...not recommended for nitrous applications.
05-31-2011, 06:29 PM
#4
05-31-2011, 10:22 PM
#5
Tech Contributor
I learned the best way to choose a plug is to go with the coldest plug that doesn't cause you problems as opposed to the most aggressive plug you can get away with.
The non-projected tip #7 (3346) are the way to go with any significant boost or nitrous with a #8 (1049) in the #7 cylinder position for good measure.
06-01-2011, 10:23 PM
#6
Melting Slicks
Member Since: Mar 2008
Location: Houston/Dayton Texas
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Getting away with it and it being a wise decision to do are 2 totally different things. Not trying to be a smart @ss, but trying to get my point across.
I learned the best way to choose a plug is to go with the coldest plug that doesn't cause you problems as opposed to the most aggressive plug you can get away with.
The non-projected tip #7 (3346) are the way to go with any significant boost or nitrous with a #8 (1049) in the #7 cylinder position for good measure.
I learned the best way to choose a plug is to go with the coldest plug that doesn't cause you problems as opposed to the most aggressive plug you can get away with.
The non-projected tip #7 (3346) are the way to go with any significant boost or nitrous with a #8 (1049) in the #7 cylinder position for good measure.
06-08-2011, 03:07 PM
#8
Pro
Getting away with it and it being a wise decision to do are 2 totally different things. Not trying to be a smart @ss, but trying to get my point across.
I learned the best way to choose a plug is to go with the coldest plug that doesn't cause you problems as opposed to the most aggressive plug you can get away with.
The non-projected tip #7 (3346) are the way to go with any significant boost or nitrous with a #8 (1049) in the #7 cylinder position for good measure.
I learned the best way to choose a plug is to go with the coldest plug that doesn't cause you problems as opposed to the most aggressive plug you can get away with.
The non-projected tip #7 (3346) are the way to go with any significant boost or nitrous with a #8 (1049) in the #7 cylinder position for good measure.
06-08-2011, 05:44 PM
#10
Tech Contributor
It runs safer. This is only catering to high-boost motors that need to play it conservative with the hot #7 cylinder. It's a known fact that #7 is this way. I would run all 8's but they foul much more easily due to the lack of heat, so I keep one in #7 only and the rest get 7's.
06-08-2011, 06:05 PM
#11
Pro
It runs safer. This is only catering to high-boost motors that need to play it conservative with the hot #7 cylinder. It's a known fact that #7 is this way. I would run all 8's but they foul much more easily due to the lack of heat, so I keep one in #7 only and the rest get 7's.
06-08-2011, 06:10 PM
#12
Tech Contributor
If you properly read your plugs using a magnifier and see any signs of detonation whatsoever on #7, then buy an 8 plug and stick it in there. I don't really think it's necessary on a 150 shot, but if you get froggy and jump to a 250, don't even bother asking. 
06-08-2011, 06:56 PM
#13
Pro
i dont see 250 in my near future....maybe 175...
