Is black smoke normal?
Well finally reached break-in mileage and took the car to ventura and did some spirited driving on the highway as well as some side roads, buddy that I was driving with in a GT350 (i know i know :smiling1:) said he noticed some puffs of black smoke coming from my tailpipes when going full throttle.....the car is basically stock aside from a throttle body and catback borla exhaust, is this normal to have black smoke coming out when going full throttle? Something I should keep my eye on?
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Yes, more obvious under WOT.
I notice it even more when traction control kicks in. Pretty sure they keep these engines on the rich side when under boost. |
normal for a little puff as these things run pretty rich...nothing to worry about. If you did it more than once, the smoke would likely be less.
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Probably a stupid question, but why would GM tune the car to run so rich?
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The engines are tuned pig rich to keep from blowing up. If it runs too lean then you get engine damage and or failure.
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Be very careful with this, as puffs of smoke may not be simply from running rich. This is a very common sign of detonation. Puffs would be bursts of black/greyish smoke. Common black smoke from running rich doesnt usually happen in puffs, unless its happening immediately going full throttle. If the puffs are under load and at WOT its very possible its detonation. |
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:happy0180: |
Black smoke normal, blue smoke death
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And no or high flow cats equal lots of black smoke
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