What would cause a white foaming crap to build up in the tailpipe?

 

sounds like someone's been given that baby a little lovin'

I've never heard of white foamy crap in the exhaust otherwise. Is it a new exhaust system? How new is the cat? Have you ran any fuel additives recently? There are many things it could be, but you'll need to give some more info before any decent hypothesis can be given.

 

yeah, if it's new exhaust, some times if it's galvanized or aluminized, there's a film on the inside of the pipe that burns off, even on just new mufflers this happens some times, if not, tell your friends to quit ------- your car

 

Maybe your car has rabies? Better avoid driving it in the rain until you know for sure.

 

Actually it is more like sludge, maybe water and oil mixed. It all started when the head gasket blew out, but now there is a new one in there and it still does it. I never had this problem until I switched to a water cooled turbo. Any ideas, it goes to the dyno on Friday for the 4 time.

 

Bad head gasket would be the fault here.. but somehow I doubt that the water cooled turbo is injecting water past the seals into the intake stream.. you sure the current head gasket is legit?

 

Definetly a weird occurance. Same thing happened to my car when the seals in the turbo had on blew When I took the turbo off and drove for a day or two it went away. I drove NA for a couple of months and then went turbo again and it hasnt happened since. It's like a milky, straight white fluid right?