06-06-2013, 01:05 AM
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#1 (permalink)
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A True Z Fanatic
Join Date: Apr 2012
Location: San Diego CA
Posts: 1,103
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Quote:
Originally Posted by JARblue
I don't think this is necessarily true because the car seems to come from Nissan already running incredibly rich (probably to account for the higher compression as well as idiots who use regular gas with lower octane). Even with my R2C intakes, my tuner said I was running outrageously rich.
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if you were to straight pipe a stock 370z, it will spit flames because its super rich from the factory(heck if you listen for it, you can hear some popping on deceleration on a stock 370z sometimes but there are no flames because the exhaust has a cat, resonator, and muffler)
exhaust flames(aka backfire) comes from unburnt fuel passing through the exhaust and igniting inside the exhaust from the extreme heat
EDIT:
Just read through the entire thread, so it seems lean and rich will cause backfire, i never thought a lean condition would cause backfire
I learned something new today 
Last edited by luigi90210; 06-06-2013 at 01:08 AM.
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