Why do drag trucks/cars blow black smoke while spooling up? I thought a tuned diesel engine shouldn't have any visible fumes

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Comments

Anonymous

they don’t use particle filters i guess, to increase the flow in the exhaust

02/29/2016 - 12:58 |
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Anonymous

diesel does not ignite as easy as gasoline do! when drag trucks and cars blow black smoke it means that it has been getting too much diesel or it has been modded to increase fuel. the black smoke is just that the diesel is poorly ignited due to the engine being at too high rpm for the diesel to hang in with the rpm. all in all. too much fuel.

02/29/2016 - 13:00 |
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Matticus Finch

In reply to by Anonymous (not verified)

I was told that its too much fuel at low RPM. Once the turbo spools up to the billion PSI it gets enough air to burn all the fuel and then it clears up.

02/29/2016 - 13:29 |
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Anonymous

Well with no catalytic, straight muffler, and put higher pressure regulator to add more fuel for more power…thats why it causes the “running coal” phenomenon…

02/29/2016 - 14:16 |
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Brent Fabian [Tracker Guy] (#GMT190LivesMatter) (Natsuki)

The turbos have not spooled up yet, so the truck starts to run rich. once they spool, the air/fuel mixture is okay and not as much smoke its generated.

03/03/2016 - 01:01 |
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A-dree-N

I thought the phrase was “if she’s smoking, she’s healthy” in regards to diesels.

03/29/2016 - 00:08 |
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