exhaust wrapp

[Tom Cloud]

>>I've wrapped exhaust systems over the years from the headers down to the 
>>muffler, where the heat isn't so bad, not so much to prevent/encourage 
>>rust, but to keep the engine compartment cooler for better performance. 
>> Its been my experience that the exhaust wrapping (from JC Whitney) wears 
>>out much faster than the exhaust (typically a year if driven daily), and 
>>can't really comment on the rust issue.  Its worked for me with good 
>>results.  I've heard that they speed up rust, as well as slowing the 
>>process down, slowing it because the inside of the pipes stay hotter longer 
>>(since the wrapping is an insulator) thus more of the H2O byproduct of 
>>gasoline burning remains as steam and exists.
>>
>>Not sure how valid that is or not.

the instructions with my new BBK ceramic headers says to NOT
wrap them !

>thanks- I was looking into that stuff from JC, but I was concerned with 
>rust and the possibility of the fiberglass catching and holding any stray 
>oil, and in effect acting like a wick. The exhaust pipes are under the 
>cylinders and run horizontally. My engines do not leak oil,but the 
>possibility exists for a very hazzardous condition. I wouldn't like to

I'd think any oil would just smoke and burn off (not burn
as flame)

Tom Cloud <cloud at peaches.ph.utexas.edu>