Black soot on exhaust?

bmwarg · 02-11-2015, 11:26 AM

I have the JB4 tune and BMW pump gas flash. Is it normal with this tune to have black soot in exhaust or is this indicative of a problem with the engine timing?

CHECKERED · 02-11-2015, 11:48 AM

Totally normal on a car with DP

335NJ · 02-11-2015, 11:55 AM

Quote:

Originally Posted by CHECKERED

Totally normal on a car with DP

+1

Normal no matter what, every car has soot on the exhaust.

gtaccord · 02-11-2015, 09:29 PM

Normal

bmwarg · 02-12-2015, 09:19 PM

Thanks. Wasn't sure.

Socket · 02-13-2015, 01:50 AM

Soot is an indication that you are running your engine and allowing exhaust gases to expel through the tail pipes. Disconnecting the muffler and tailpipes will prevent soot build up

02-11-2015, 11:26 AM	#1
bmwarg Lieutenant 62 Rep 460 Posts Drives: 2008 E90 335i, 2012 E70 50i Join Date: Jun 2013 Location: Chicago, IL iTrader: (0)	Black soot on exhaust? I have the JB4 tune and BMW pump gas flash. Is it normal with this tune to have black soot in exhaust or is this indicative of a problem with the engine timing? __________________ 2008 E90 335i: JB4 G5 ISO \| BMS Pump Gas Backend Flash \| ER Charge Pipe \| n54Tuning DPs \| ETS FMIC
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02-11-2015, 11:48 AM	#2
CHECKERED ex deus machina 124 Rep 968 Posts Drives: G30, F15, Audi S4 Join Date: Oct 2012 Location: Southern NH iTrader: (12)	Totally normal on a car with DP __________________ Daily: G30 M550i, Bluestone, JB4, 1 step colder plugs, 6WB retrofit Winter Beast: Audi S4 4.2L V8, Supercharger, brakes, suspension & exhaust mods Wifes': F15 M50d clone, DUDMD tune, WMI, MPBK Gone: E92 335i N54 468rwtq
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02-11-2015, 09:29 PM	#4
gtaccord Major 56 Rep 1,464 Posts Drives: 2009 BMW 335xi Join Date: Feb 2012 Location: Maryland iTrader: (7) Garage List 2009 BMW 335i xdrive [0.00]	Normal
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02-12-2015, 09:19 PM	#5
bmwarg Lieutenant 62 Rep 460 Posts Drives: 2008 E90 335i, 2012 E70 50i Join Date: Jun 2013 Location: Chicago, IL iTrader: (0)	Thanks. Wasn't sure. __________________ 2008 E90 335i: JB4 G5 ISO \| BMS Pump Gas Backend Flash \| ER Charge Pipe \| n54Tuning DPs \| ETS FMIC
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02-13-2015, 01:50 AM	#6
Socket Lieutenant General 4542 Rep 11,903 Posts Drives: 335i Join Date: Nov 2014 Location: Australia iTrader: (4) Garage List 2008 BMW E92 [0.00]	Soot is an indication that you are running your engine and allowing exhaust gases to expel through the tail pipes. Disconnecting the muffler and tailpipes will prevent soot build up
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