Engine Compartment Heat?

[ralph d. edelbach]

Would it be of any value in reducing engine compartment heat to wrap the exhaust
manifolds/down pipers with insulation material designed to withstand hi-temps? If
anyone has done this, where did you get the material? I suppose hotrod/racing
shops would have it but I haven't checked yet.

Someone suggested that would be enhance performance since the hotter gases would
improve engine breathing. Any thoughts? Thanks.

Ralph Edelbach, '74 Glacier

 

[heinz wittenbecher]

DON'T, especially if you've headers (Thorley). Voids the warranty and will
eventually make the headers rust and break apart.

First hand experience. Mind you, it took a few years but when I bought the
new replacement headers it had a page dedicated to the warning to NOT wrap.

The problem is that moisture collects during cooldown.

There are the benefits of cooler engine compartment... much cooler but as
rusted piped impeede travel mine are no longer wrapped.

I think next time I will go with the ceramic coating that has been
mentioned.

Heinz
http://www.bytedesigns.com/gmc

>Would it be of any value in reducing engine compartment heat to wrap the
exhaust
>manifolds/down pipers with insulation material designed to withstand
hi-temps? If
>anyone has done this, where did you get the material? I suppose
hotrod/racing
>shops would have it but I haven't checked yet.
>
>Someone suggested that would be enhance performance since the hotter gases
would
>improve engine breathing. Any thoughts? Thanks.
>
>Ralph Edelbach, '74 Glacier
>