Dick Gregory wrote:

Has anyone tried using Evans NPG coolant? You don't mix water with it and

it

doesn't boil until 370F. Evans recommends 0-7 psi cap since engine

hotspots

won't cause local boiling. They claim no oxidation or corrosion for metal
parts, and histories of hundreds of thousands of miles in trucks.

Just wondering if anyone has positive or negative experience with it.

Dick Gregory
LongEZ N613NC (Soon to be 13B powered)

Ken Welter is running it now and so far so good. However he is not measuring
the temp down near the base of the spark plug so who knows. Unless we start
doing that we will never really know what is going on in our engines cooling
wise. The metal temps are the very bottom line.
The water temp can be anything but who knows what the metal temperature is.

Paul Lamar

"Bass, Jerry" wrote:

Does anyone know where to get the NPG cocktail?

 How about heat pipes.  Can we bolt onto the engine small heat pipes that
would move the hop spots out away from the combustion chamber. Put radiating
fins on the heat pipes to convect the heat away.
Jerry Bass

I would use caution on this. I would install thermocouples  near 
the combustion chamber before I used it. There are a lot of issues
in regard to using NPG. You could crack or warp your rotor housings.
Boiling temperature alone is not necessarily the bottom line.

http://www.evanscooling.com

Paul Lamar
 
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