John
Keeping the heat in the manifold helps keep the engine compartment cooler
and in this way the engine make more power.
On the other hand the hotter the manifold temp the less power the engine
makes. As an example the inboard boat engines with water cooled manifold
make much more power than it otherwise would.

Bob Donalds
Boston Engine

----- Original Message -----
From: "John Rodgers" <inua@CHARTER.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, March 21, 2007 2:17 AM
Subject: ITC

> Anybody ever hear of this stuff being applied  externally to auto
> engines and exhaust manifolds? It's a sprayon product of incredible
> energy efficiency. use to coat industrial kilns for protection from
> heat. I have used it in ceramic work, but never seen it on a vehicle.
> Don't know why it would not work to retain heat in the engine and
> manifolds. Make engines more  efficient;.
>
> Regards.
>
> John Rodgers
> 88 GL Driver