White smoke at idle - Ford Mustang Forum
 
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post #1 of 7 (permalink) Old 11-30-2012 Thread Starter
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White smoke at idle

So after I installed my lethal o/r x and bama 93 performance tune and I noticed now that there's a lot of white smoke coming from the exhaust even after its up to operating temps the weather has been cold but I don't think it's Sopossed to do that even after its warm and driven for more than 10 miles

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post #2 of 7 (permalink) Old 11-30-2012
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Cold + no cats = a lot of steam from the exhaust.

Roush vs. Hushpower on 2011 Mustang GTCS.wmv - YouTube

See 2:25

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post #3 of 7 (permalink) Old 11-30-2012
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At colder temps the water vapor in the exhaust condenses with the appearance of smoke. Same with your breath. When you remove the cats the amount of water vapor increases.
 
post #4 of 7 (permalink) Old 11-30-2012
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What the others have said is 100% true you are seeing steam comming out of the exhaust. OP if you had true white smoke your exhaust would smell like burnt sugar and you would be loosing coolant like crazy. Catless your exhaust will smell like a normal no catted 4 stroke engine.
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post #5 of 7 (permalink) Old 11-30-2012
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Quote:
Originally Posted by xcakez72 View Post
So after I installed my lethal o/r x and bama 93 performance tune and I noticed now that there's a lot of white smoke coming from the exhaust even after its up to operating temps the weather has been cold but I don't think it's Sopossed to do that even after its warm and driven for more than 10 miles
Quote:
Originally Posted by Grimace427 View Post
At colder temps the water vapor in the exhaust condenses with the appearance of smoke. Same with your breath. When you remove the cats the amount of water vapor increases.
Hey Cakez,

These guys definitely provided you with the correct information! Grimace said it perfectly with that analogy. It's exactly like your breath in the cold weather! When you remove the cats your call will let a lot more water vapors pass by, causing this "smoke".

I hope this helps. Let me know if you have any questions!

-Dan

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post #6 of 7 (permalink) Old 11-30-2012 Thread Starter
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thank you all for the help and it doesnt have a sweet smell just smells like a mr softee exhaust from when i was little haha
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post #7 of 7 (permalink) Old 12-04-2012
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Just to add to what others said. Besides the cold weather if you just installed the pipe and are seeing smoke it's most likely oil that's used for cutting the pipes or the coating used to protect the pipes from rusting that's burning off. That will eventually go away once it's been driven a few times and see's a few heat cycles.

Let me know if you have any other questions.

Jared

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