[Es2] That Evens stuff, was things that tend to break...

Kenneth Keith auditude at gmail.com
Sun Jun 18 02:40:03 EDT 2006

Hey Bernie,

What are your thoughts about Redline's Water Wetter product?  It's
reputed to reduce the surface tension of water, and therefore improve
heat transfer.

Here's a link to some product info:




On 6/17/06, Bernie Benz <b.benz at charter.net> wrote:
> Mark, thanks for your response and the link. Understanding that you are
> trying to repeat your understanding of the Evens coolant, and not wanting to
> put you down at all, only this hype. IMO:
> 1. Apparently the Evens is 100% PG, not an H2O mixture. Inasmuch as H2O has
> the highest specific heat of any substance on this planet, the heat transfer
> capabilities of PG are maybe half that of H20. Further, with its
> considerably higher viscosity the same pumping loop system will have a
> substantually lower flow rate. Both factors contributing to a lesser heat
> transfer from the engine.
> 2. Cavitation is not a factor in heat transfer to the fluid. It does not
> exist on the wetted heat source surfaces. The surface coefficient of heat
> transfer from a source surface is greatly increased by turbulent rather than
> laminar flow across the surface, requiring the maximumizing of flow
> velocities and minimumizing of fluid viscosities.
> 3. The vaporization of liquid in micro bubbles on the source surface further
> increases the heat transfer to the fluid. Inasmuch as H2O has the highest
> heat of vaporization of any fluid, it is again the best heat transfer fluid
> on the planet. Additives to H20 are necessary only for corrosion protection.
> Pressurization increases the boiling point of water to extend its heat
> transfer capabilities. When you want maximum cooling, use a mixture of only
> 10 or 20% EG.
> Bernie
> > From: "Mark Wetzel" <mark.wetzel at verizon.net>
> >
> > Evans is Propylene Glycol as opposed to Ethylene Glycol.
> >
> > It's got a much  higher boiling point so there's no cavitation against the
> > cylinder walls, so there's better heat transfer.
> >
> > It's not a new black magic potion, but it is more expensive therefore not
> > very popular.
> >
> > http://www.evanscooling.com/index2.html
> >
> > Regards,
> > Mark
> > M.Wetzel's Racing Products LLC
> >
> > -----Original Message-----
> > From: es2-bounces at audifans.com [mailto:es2-bounces at audifans.com]On
> > Behalf Of Bernie Benz
> >
> > Hi Brandon,
> >>
> >> -----Original Message-----
> >> From: es2-bounces at audifans.com [mailto:es2-bounces at audifans.com] On
> >> Behalf Of Brandon Hull
> >>
> >> Wow a thread with some life!  Well I once broke most everything from the
> >> cowl forward at the track but I guess that's not what you mean.  I never
> >> had cooling issues but from day one I ran Evans zero pressure coolant
> >> which I continue to think is a great idea in turbo engines, I don't know
> >> why everyone doesn't do it...
> > And just what is Evans zero pressure coolant?? Sounds flakey to me.

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