Plug Pics
03-15-2013, 11:25 PM
#1
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Plug Pics Attached are a couple of pics of my plugs on my N20 tune after driving around for about 100 miles. 70% 93 and 30% 110 fuel mix. 9* pulled Br8ef plug. 6 of them look fairly clean and #6 and #8 are the dirty ones. Why so rich on those two cylinders? Thanks..
03-16-2013, 10:16 PM
#2
sometimes the pressure on the fuel line can paint them a little after sitting a few days, but those two look like they are fouled. get rid of any that have that glazed over look.
What I do is put a new one in before crank off on the line, then pull it out at the end of the strip. This will give you a good estimate of the nitrous plug tune.
Can you get a better shot of the dry ones? Hard to see, but almost looks like too much spark and too rich when n/a. Ground strap looks like it heated pretty for towards the base and the ceramic, as dirty as is, looks like it has speckles on it.
btw, I would check static compression/leak down on those cylinders if you see that again.
What I do is put a new one in before crank off on the line, then pull it out at the end of the strip. This will give you a good estimate of the nitrous plug tune.
Can you get a better shot of the dry ones? Hard to see, but almost looks like too much spark and too rich when n/a. Ground strap looks like it heated pretty for towards the base and the ceramic, as dirty as is, looks like it has speckles on it.
btw, I would check static compression/leak down on those cylinders if you see that again.
03-17-2013, 07:59 AM
#4
sometimes the pressure on the fuel line can paint them a little after sitting a few days, but those two look like they are fouled. get rid of any that have that glazed over look.
What I do is put a new one in before crank off on the line, then pull it out at the end of the strip. This will give you a good estimate of the nitrous plug tune.
Can you get a better shot of the dry ones? Hard to see, but almost looks like too much spark and too rich when n/a. Ground strap looks like it heated pretty for towards the base and the ceramic, as dirty as is, looks like it has speckles on it.
btw, I would check static compression/leak down on those cylinders if you see that again.
What I do is put a new one in before crank off on the line, then pull it out at the end of the strip. This will give you a good estimate of the nitrous plug tune.
Can you get a better shot of the dry ones? Hard to see, but almost looks like too much spark and too rich when n/a. Ground strap looks like it heated pretty for towards the base and the ceramic, as dirty as is, looks like it has speckles on it.
btw, I would check static compression/leak down on those cylinders if you see that again.
