White Smoke When Rev'ing Engine Hard

[derek1800]

There is a small amount of white smoke that comes out of the exhaust when rev'ing the engine to 4-5k rpm when the car is in neutral. Is it possible that an off road pipe with no cats could cause this?

 

[trinity_gt]

What was the outside air temperature? How humid was it? How hot was the engine and exhaust?

 

[derek1800]

about 65 degrees outside. Not that humid at all. Engine and exhaust were warm from already driving the car.

 

[trinity_gt]

I'm suspecting you're just seeing a bit of water vapor in the exhaust condensing as it hits the cooler air outside the tailpipe.

If you're worried, keep tabs on the coolant level.

 

[derek1800]

All of the gauges for oil, temp, etc look normal. I guess I can keep an eye on the coolants. Any reason to think it might be something else?