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Do our cars give out any smoke when you floor it like older cars?? Or is ulev good enough.

 
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I've always heard that vtec engines give a puff of black smoke when WOT...I haven't ever noticed it with my car though..I think it has something to do with vtec burning a little oil. Not sure though

 
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oh okay i was just wonderin if anyone saw it from riding behind another civic. I think it looks bad like your car isn't tuned or something.

 
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a lot of performance cars are designed to burn oil at wot and near redline... e.g. porsches - turbo and non

 
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oil burns white, not black.

black smoke is often just carbon deposits and soot.

 
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well i'm just wondering if anything comes out the exhaust, cause I know on older accords and stuff I can tell when they're giving it gas and stuff puffs out.

 
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Its usually a sign of the car running rich as a precaution to keep it from blowing up. You'll see lots of evos with blackened bumpers because they throw more gas in than they need to to keep it from running lean under high boost.

 
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i know that when your low on oil then you will make some black smoke, and can anyone tell me what WOT means? im so lost. anyway, when you redline too much the oil gets eaten up and black smoke rolls out when you don't have enough in the pan.

 
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^^^ wide open throttle=WOT

 
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thanx!

 
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yea black means youre running a little rich
white is coolant
blueish gray is oil

 
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Yea my rear bumper has some soot built up as well. Do you think its because of my nitrous plugs and 94 octane gas when Im not spraying, or from spraying?

 
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lol majin listen to what people are saying. burning motor oil in your engine does not produce black smoke.

and not enough oil in the pan has nothing to do with any smoke coming from the engine.

 
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so in conclusion, nobody really knows the answer.

 
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well ok s2kman, just recallin what happened to friends rides. and yeah gearbox no one really knows the answer.

 
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2 guys I work with, one has a STi and one has a Eclipse Spyder and both of them have the black puff of smoke when they floor it..

makes me wish i had a quick car.. however with gas being 2.45 I love my civic

 
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black smoke can be produced by blow by, no?

 
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as people have said. black smoke is carbon deposits and/or signs of running a bit rich. (which many higher rpm cars or turbo cars are designed to do to prevent detonation)

white smoke is from coolant (i was wrong before)

and blue-ish gray smoke is oil.

 
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http://www.cardonationcharities.cc/smoke-black.html

the answer

 
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just to remind everyone, i want to know for a civic

 
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I doubt its going to change. I mean ivea already seen some civics with whitish blue smoke, because peopled didnt take care. So maybe not with them all at like 90000 miles no, but probably when you get up there it will start happining. ULEV just means ultra low emmsions vehicle doesnt mean its not subject to the wear and tear of a normal vehicle.

 
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I know that my boys gsr when it hits vtec hits mad black smoke just only when vtec hits but i have seen it happen to plenty of hondas when they hit vtec

 
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that's because hondas tend to run rich on the hi cam profile to prevent detonation. it's a fail-safe for the engine.

 
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hince why one day black smoke will come out of our cars in vtec