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suggestions, black smoke

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Old Jan 8, 2005 | 05:12 PM
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Default suggestions, black smoke

i was recently outside and i revved my TA up to 4.5k rpm and i noticed a cloud of black smoke flowing from my exhaust. i had my girlfriend rev up to 4.5k again and the black smoke seemed to start coming through my exhaust at 4k and up. am i running rich or is there another problem? any info will be greatly appreciated!
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Old Jan 8, 2005 | 05:50 PM
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black smoke= rich

any codes (probably a code for the 02's)

you need to log and see what is up. look at it this way, it isn't white or blue smoke being a little rich in the upper rpms never hurt anybody, just performance...
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Old Jan 8, 2005 | 06:07 PM
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thanks for the post sleeperstyle! what does the white and blue smoke mean?
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Old Jan 8, 2005 | 06:13 PM
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white= coolant (not all of the time but if the white smoke does not dissipate into the air good then it could be coolant)

blue = oil = VERY bad.
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Old Jan 8, 2005 | 06:49 PM
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thanks again for the info buddy!
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Old Jan 9, 2005 | 12:34 PM
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what causes a rich or a lean mixture?
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Old Jan 9, 2005 | 01:57 PM
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what engine mods do you have? I've read that headers make the car run a bit rich (black smoke) if its untuned.
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Old Jan 9, 2005 | 02:35 PM
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Ive been to a couple group dynos and id say about half the modded ls1's I see on the dyno will blow black smoke in the high rpms.
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Old Jan 9, 2005 | 06:13 PM
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no headers, stock manifolds. i have borla catback (open plate). i havnt gotten tuned scince i put the 3.73s on. i will get MTI (jayson) to install their custom computer soon, maybe he can find something out. the only mods i have are suspension parts, 160 thermastat, ripper shifter, MTI induction+K&N+smooth bellows, borla catback, and the 3.73s. thanks for the info guys!
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