anyone's exhaust spit flames?

forza370z · 06-05-2013, 09:48 PM

Quote:

Originally Posted by Sh0velMan

That's true as well! I guess the afterburner looking flames like the video had can be a lean condition and the crazy flame thrower style flames could be rich... Meh.

The conclusion is we were both correct.

SouthArk370Z · 06-05-2013, 10:13 PM

Quote:

Originally Posted by Sh0velMan

That's true as well! I guess the afterburner looking flames like the video had can be a lean condition and the crazy flame thrower style flames could be rich... Meh.

I'd say your guess is right. Most (if not all) hydrocarbons burn with a bluish-whiteish flame when in normal to lean conditions and burn yellowish-orangeish when rich.

luigi90210 · 06-06-2013, 01:05 AM

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.

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

AlexRaymond19 · 06-06-2013, 10:35 AM

Quote:

Originally Posted by FPenvy

someone hook up a gopro to mine. when i downshift at lights people back up and stay back sooooo maybe? i do hear plenty of gurgles and backfire when i'm driving so its possible?

People do that to me all the time, and i hear what sounds like a noise that would be made if flame was spitting out. Almost rally style

FPenvy · 06-06-2013, 10:40 AM

Quote:

Originally Posted by AlexRaymond19

People do that to me all the time, and i hear what sounds like a noise that would be made if flame was spitting out. Almost rally style

like i wanna believe mine does but i'm pretty sure i'm on a good enough tune where i should not be running lean or rich enough to cause it but who knows.

Leuz · 06-06-2013, 10:59 AM

Why did you open this thread?? Now I "NEED" my car to do that gosh

FPenvy · 06-06-2013, 11:02 AM

Quote:

Originally Posted by Leuz

Why did you open this thread?? Now I "NEED" my car to do that gosh

worst case go get this lol

Hot Licks Exhaust: Dual Exhaust Kit

Staples · 06-06-2013, 06:59 PM

My car... sorry for the chitty quality. Reduce timing and/or add fuel and this is what you end up with

This is during a tuning session.

McLovin2010 · 02-06-2016, 11:47 PM

long time since last post but my car does na with fast intentions LTH and catback exhaust, stillen gen 3 intakes and ported manifold and tb, with uprev tune.

06-06-2013, 10:59 AM	#51 (permalink)
Leuz Track Member Join Date: Nov 2012 Location: NorCal Posts: 555 Drives: Bunny Rep Power: 13	Why did you open this thread?? Now I "NEED" my car to do that gosh Miguel70Z likes this. __________________ 2013 PW 370Z Touring+Sport, NAV Tint 35% side, 18% back \| RJM clutch pedal \| ZSpeed SS lines \| Stillen Gen3 CAI \| Fast Intentions HFC and TDX 12'' CF CBE \| UpRev

06-06-2013, 06:59 PM	#53 (permalink)
Staples Track Member Join Date: Sep 2010 Location: Baltimore, MD Posts: 546 Drives: '08 Infiniti G37s Rep Power: 15	My car... sorry for the chitty quality. Reduce timing and/or add fuel and this is what you end up with This is during a tuning session. __________________ '08 Infiniti G37s - Forced Induction Fed

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02-06-2016, 11:47 PM	#54 (permalink)
McLovin2010 Base Member Join Date: Aug 2014 Location: Yorktown, VA Posts: 68 Drives: 15 370z white manual Rep Power: 39	long time since last post but my car does na with fast intentions LTH and catback exhaust, stillen gen 3 intakes and ported manifold and tb, with uprev tune.