Dirty Howie

I have been noticing I get a lot of moisture, even water puddles from my exhasut in the morning. My wife actually called to tell me oil was leaking from the back of my car. It was actually just water mixed with exhaust soot. Mostly the water is just below the exhaust tips but puddles are also forming just forward of the mufflers???? Why would that be????


DH

capn37

The water is probably coming out before the mufflers because of a slight exhaust leak. At least that would be my guess.

Frenchican

Howie... dude... you're killing me...

Z11409

What is the average humity where you live?

Katech_Zach

NOx + CO —› N2 + CO2
NOx + H2 —› H2O + N2

H2 + O2 —› H2O
HC + O2 —› CO2 + H2O

Dirty Howie

I know you have had your car for a looooooooooooong time Tommy.

So you have probably chased all the water out of it.

This is way more than my C5 which had a 416 engine, so I'm just askin.

But if you have any thing constructive to add, please do.


DH

Lank

My 08 Z is stock and does the same thing your's is doing. I've only got 3300 miles on it.

It definitely makes much more water than my 03 Coupe ever did.

There are puddles under it after it runs for just a few minutes when warming up.

Lank

Dirty Howie

Jason

I actually took chemistry classes before you were born

Maybe you can tell me why I can't see the CO2 puddles as well

Seriously, I'm just lookin for some reasurance that everybody sees condensation puddles. These cars may produce more for some reason.......LIKE THE OIL TEMP REARLY GETS TO 200 DEGREES!!!!

I know you have a lot of knowledge and what would be normally expected. How about a condensation puddle forward of the exhaust tip (around or before mufflers) ...... is this normal????


DH

Dirty Howie

Its been variable but the exhaust condensation is always there......


DH

Dirty Howie

THANK YOU !!!!!!!!!!!!!!!!!!!!!!!

I had a stock motor, then heads and cam on it, then two different forged motors and I never had water puddles under the car.

I have a feeling its because our oil never gets over 200*.....but it would nice to hear form some experts !!!!!!!!!


DH

Katech_Zach

Just checkin' if you were paying attention. What you're seeing is completely normal. During warm up emissions are higher than normal so the catalyst is working hard turning NOx and HC into H2O. The puddle you are seeing before the muffler tip is from the weep hole in the muffler that is designed to let condensed water out of the muffler.

allanlaw

Easy Howdie, it's perfectly normal - mine does it all the time.

Katech_Zach

It has nothing to do with the oil temp. It may have something to do with your exhaust system's temperature. If you're making a lot of short trips water vapor from start up is condensing in the exhaust system and sitting there. If you never get the system hot enough to turn that water back into vapor and out the tailpipe it may collect more in the mufflers.

The LS7's cam profile is a little aggressive for a stock car, so it probably has really efficient converters to pass emissions, therefore converting a lot of NOx and HC to H2O and creating more water vapor.

OneSickZ06

Truer words have never been spoken.

OneSickZ06

Man can't wait to get the time together to get some stuff form you. Probably a knowledgable converstion!

Torched

Dirty Howie

THANK YOU VERY MUCH !!!!

See, that little bit of knowledge regarding the weep hole is going to let me sleep like a baby tonight!!! And I will bet most guys didn't know that either.

So, do you think Z06 creates more water puddles than other Vettes?? I only have my last car to compare to. And I never in 4 years had water puddles


DH

Dirty Howie

OOOOPS ....... didn't see this explanation before my last post.

Thanks, that makes sense to me....I feel a lot better now.


DH

tjwong

Mine does the same thing with a larger than stock cam. It emits a considerable amount of water vapor and condensate, not particularly any more than any other C6 Z or LS2, and it is also a little dependent on the ambient conditions.

El Puto

Ohh, he's just being a post *****