flaming exhaust

dirtmaster666 · 06-13-2013, 07:58 PM

I am fbo with Vishnu pwm meth system, and also full cattless with muffler delete. installed vibrant 1792 resonators in place of secondary cats. so my question is does anybody else shoot flames out exhaust after wot pull? weird thing is, is that I only get flames out of my driver side pipe and not passenger side. I think the driver side exhaust is for bank one but I am not sure. could I have a problem with the bank that is shooting exhaust? or is this related to the meth?

thanks

psmitty95 · 06-13-2013, 08:03 PM

Quote:

Originally Posted by dirtmaster666

I am fbo with Vishnu pwm meth system, and also full cattless with muffler delete. installed vibrant 1792 resonators in place of secondary cats. so my question is does anybody else shoot flames out exhaust after wot pull? weird thing is, is that I only get flames out of my driver side pipe and not passenger side. I think the driver side exhaust is for bank one but I am not sure. could I have a problem with the bank that is shooting exhaust? or is this related to the meth?

thanks

I've only shot flames once as far as I know and my friend behind me said he saw it only out of one pipe

dirtmaster666 · 06-13-2013, 08:07 PM

Hmm. Not sure if this is normal

CoralRed335XI · 06-13-2013, 08:10 PM

I wish I had a flame. 2 would be orgasmic

Jeff@TopGearSolutions · 06-13-2013, 08:23 PM

I've seen flames on all my cars in the past 5 or 6 years. (Well friends have).

My vote is normal. Especially on catless.

My z06 does it and it has stock cats. It is tuned with a muffler delete though.

j1gilles · 06-13-2013, 08:43 PM

Completely normal... My GNX does it and it occurs because of unburned hydrocarbons exiting the combustion chamber and then entering the exhaust and igniting. More common in cars that use extra fueling ie meth. Cats usually burn them off (unburned hydrocarbons) before they make it to the tailpipe. In the case of my GNX it is because of a tune that makes it run rich during shifts which is when the flames occur (most common time)..

135Hoser · 06-13-2013, 09:05 PM

Catless + richer tune up top = flames.

My STi had some serious maf issues when I first got it built, if I jabbed the gas then let off it would shoot a solid flame every time. I scared the crap out of a couple old ladies at night with it, or would use the mini explosion to set off car alarms in parkades.

If you're worried, do some data logging, and make sure you aren't running horribly rich. However a little flame out the back is to be expected.

With no cats you have nothing to handle any unburnt fuel in your exhaust, so hot unburnt fuel + hot everything = EXPLOSIONSSSSS! and fire out the back, just fyi.

onebadmofo · 06-13-2013, 09:07 PM

Quite normal. When I had my car at its full power I actually saw flashes in the mirror or light reflecting off things.

infidel335 · 06-13-2013, 09:21 PM

Do you have an X pipe?

E90Company · 06-13-2013, 11:24 PM

You need logs of both banks to double check and make sure your AFR's are in check.

335xi Kevo · 06-14-2013, 08:11 AM

Wish I shot flames.....

dirtmaster666 · 06-14-2013, 08:40 AM

I posted logs last week. Under title proceed meth log I thing. Could check them out if u want. But they look perfect

E90Company · 06-14-2013, 08:48 AM

If the AFR's are in check then its just normal. My car does it now and then and I have perfect AFR in both banks.

mrbillytalent · 06-14-2013, 09:49 AM

Ever since my secondary cat delete and NLS/2step kit from BMS I've been popping flames pretty regularly. Either on a redlined NLS or during a 2 step. I've even found that if its too cold my LPFP can't keep up with the e85 and it'll cut out at ~6k rpm... and when it does it ROLLS flames out the back. Sounds like a machine gun. Guess it's pretty cool...

mrbillytalent · 06-14-2013, 09:49 AM

In a matter of fact here it is:

HurtsMyWorld · 06-14-2013, 11:05 AM

Flames make you go faster

FrozenM3nace · 06-16-2013, 01:25 AM

Quote:

Originally Posted by mrbillytalent

In a matter of fact here it is:

Holy shit!!! What's your exhaust setup?

Jeff@TopGearSolutions · 06-16-2013, 11:01 PM

Quote:

Originally Posted by mrbillytalent

In a matter of fact here it is:

Reminds me of this guy

mrbillytalent · 06-17-2013, 06:59 AM

Quote:

Originally Posted by Jeff@TopGearSolutions

Reminds me of this guy

I'm working on the fart can and holey bumper mod. I'll get back with you guys afterwards.

Current exhaust mods:
ar design no meow dp's
custom cut secondary meowers
stock exhaust other wise.

-jb4 g5
-NLS/2 step module

techwhiz · 06-17-2013, 08:56 AM

Quote:

Originally Posted by 335xi Kevo

Wish I shot flames.....

Eat beans, light the fart.......

06-13-2013, 07:58 PM	#1
dirtmaster666 "J" BONE 24 Rep 578 Posts Drives: 2007 335i Join Date: Jan 2010 Location: edmonton iTrader: (0)	flaming exhaust I am fbo with Vishnu pwm meth system, and also full cattless with muffler delete. installed vibrant 1792 resonators in place of secondary cats. so my question is does anybody else shoot flames out exhaust after wot pull? weird thing is, is that I only get flames out of my driver side pipe and not passenger side. I think the driver side exhaust is for bank one but I am not sure. could I have a problem with the bank that is shooting exhaust? or is this related to the meth? thanks __________________ procede v5 rev3, afe dual cone intake, full catless exhaust with muffler delete, hm style carbon fibre lip, 235/35/19,275/30/19 satin black linea corse818, H&R sport springs, Vishnu charge pipe with forged diverter valves, matte black kidneys, mtec superwhite angel eyes and fogs, bms cdv ER fmic, VRSF coated DP. Vishnu pwm meth kit
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06-13-2013, 08:07 PM	#3
dirtmaster666 "J" BONE 24 Rep 578 Posts Drives: 2007 335i Join Date: Jan 2010 Location: edmonton iTrader: (0)	Hmm. Not sure if this is normal __________________ procede v5 rev3, afe dual cone intake, full catless exhaust with muffler delete, hm style carbon fibre lip, 235/35/19,275/30/19 satin black linea corse818, H&R sport springs, Vishnu charge pipe with forged diverter valves, matte black kidneys, mtec superwhite angel eyes and fogs, bms cdv ER fmic, VRSF coated DP. Vishnu pwm meth kit
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06-13-2013, 08:10 PM	#4
CoralRed335XI Captain 98 Rep 646 Posts Drives: 2008 E92 335XI Coupe Join Date: Aug 2011 Location: NJ,VA iTrader: (4) Garage List 2008 BMW 335XI [3.66]	I wish I had a flame. 2 would be orgasmic __________________ 2008 E92 335XI, Space Gray on Coral/Fox Red Hybrid M3 seats, Premium, Cold Weather, Comfort Access, iPod. Mods: Fox Red M3 seats up front, KW V1, ER CP + TIAL BOV.
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06-13-2013, 08:23 PM	#5
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	I've seen flames on all my cars in the past 5 or 6 years. (Well friends have). My vote is normal. Especially on catless. My z06 does it and it has stock cats. It is tuned with a muffler delete though.
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06-13-2013, 08:43 PM	#6
j1gilles Captain 51 Rep 719 Posts Drives: 2009 335xi Join Date: Feb 2013 Location: Chicago iTrader: (0)	Completely normal... My GNX does it and it occurs because of unburned hydrocarbons exiting the combustion chamber and then entering the exhaust and igniting. More common in cars that use extra fueling ie meth. Cats usually burn them off (unburned hydrocarbons) before they make it to the tailpipe. In the case of my GNX it is because of a tune that makes it run rich during shifts which is when the flames occur (most common time).. __________________ ASE master tech (many moons ago)335xi- JB4 G5 iso/e50 custom flash/Custom meth/Borla mids/Custom x-pipe/DCI/ER charge pipe/Dual Ebay BOV's/Alpina B3 flash/Paddle shifter retro fit
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06-13-2013, 09:05 PM	#7
135Hoser Banned 39 Rep 315 Posts Drives: '16 m4 zcp Join Date: Jul 2011 Location: Canada, Eh iTrader: (0)	Catless + richer tune up top = flames. My STi had some serious maf issues when I first got it built, if I jabbed the gas then let off it would shoot a solid flame every time. I scared the crap out of a couple old ladies at night with it, or would use the mini explosion to set off car alarms in parkades. If you're worried, do some data logging, and make sure you aren't running horribly rich. However a little flame out the back is to be expected. With no cats you have nothing to handle any unburnt fuel in your exhaust, so hot unburnt fuel + hot everything = EXPLOSIONSSSSS! and fire out the back, just fyi.
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06-13-2013, 09:07 PM	#8
onebadmofo Colonel 346 Rep 2,396 Posts Drives: 2008 E90 M3 Join Date: Aug 2010 Location: Central NJ iTrader: (14)	Quite normal. When I had my car at its full power I actually saw flashes in the mirror or light reflecting off things.
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06-13-2013, 09:21 PM	#9
infidel335 Lieutenant 29 Rep 454 Posts Drives: 2009 335xi Join Date: May 2012 Location: NoVA iTrader: (0)	Do you have an X pipe? __________________ 335xi: JB4 G5 \| KW V1s \| muffler delete \| BMS DCI \| VRSF 7" FMIC \| VMR v703 18x8 \| and your mom
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06-13-2013, 11:24 PM	#10
E90Company Major General 194 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	You need logs of both banks to double check and make sure your AFR's are in check.
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06-14-2013, 08:11 AM	#11
335xi Kevo Lieutenant 26 Rep 497 Posts Drives: 2008 335xi Join Date: Jan 2012 Location: CT iTrader: (3)	Wish I shot flames..... __________________ 08' 335xi 6MT Space Metallic Grey Premium, Nav, Cold weather, Sport Procede 2.5, DCI, Forge DV, PWM, Scoops, KW V1, ETS 5" FMIC, VRSF Downpipes, M3 Skirts
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06-14-2013, 08:40 AM	#12
dirtmaster666 "J" BONE 24 Rep 578 Posts Drives: 2007 335i Join Date: Jan 2010 Location: edmonton iTrader: (0)	I posted logs last week. Under title proceed meth log I thing. Could check them out if u want. But they look perfect __________________ procede v5 rev3, afe dual cone intake, full catless exhaust with muffler delete, hm style carbon fibre lip, 235/35/19,275/30/19 satin black linea corse818, H&R sport springs, Vishnu charge pipe with forged diverter valves, matte black kidneys, mtec superwhite angel eyes and fogs, bms cdv ER fmic, VRSF coated DP. Vishnu pwm meth kit
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06-14-2013, 08:48 AM	#13
E90Company Major General 194 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	If the AFR's are in check then its just normal. My car does it now and then and I have perfect AFR in both banks.
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06-14-2013, 09:49 AM	#14
mrbillytalent Lieutenant 17 Rep 575 Posts Drives: '99 e46 323i & '07 e90 335i Join Date: May 2012 Location: Toledo OH iTrader: (1)	Ever since my secondary cat delete and NLS/2step kit from BMS I've been popping flames pretty regularly. Either on a redlined NLS or during a 2 step. I've even found that if its too cold my LPFP can't keep up with the e85 and it'll cut out at ~6k rpm... and when it does it ROLLS flames out the back. Sounds like a machine gun. Guess it's pretty cool...
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06-14-2013, 11:05 AM	#16
HurtsMyWorld Lieutenant 6 Rep 448 Posts Drives: Black 07 335i Coupe Join Date: Apr 2010 Location: Richmond VA iTrader: (2)	Flames make you go faster __________________ Procede, AFE Intake, AA BOV, Black Out Tail Lights, Black Grills, Black side reflectors, VMR V715s 19", VSRF Catless-DownPipes and FMIC. Coming soon - Metch rear bumper,, Oil Catch Can, and much more.
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