Okay, now I understand. Thanks!
John D
--- Randall Young <ryoung@NAVCOMTECH.COM> wrote:
>
> John :
>
> I've no direct experience, but what Evans neglects
> to mention up front is
> that their coolant has a much lower heat capacity
> than water, so has to be
> circulated faster in order to keep the same
> temperature differential between
> the engine and radiator. (A modified water pump is
> the 'simple'
> modification they mention.) In effect, their
> coolant can only be used in
> engines designed to use it, or engines that are
> drastically over-cooled
> using pure water.
>
> Evans has agreed privately (to me) that our LBCs do
> not fall into either
> category, thus cannot use their coolant without
> modifications.
>
> I did once experiment (in desperation) with
> something similar in a TR3A,
> pure ethylene glycol (which has a much higher
> boiling point than water or
> water/antifreeze). Result : one very ruined engine.
>
> Randall
>
> john donohoe wrote :
> >
> > Does anyone use NPG (non-aqueous propylene glycol)
> > coolant as described at
> http://www.evanscooling.com?
> >
> > Sounds like a good thing if what they say about
> using
> > it in vintage cars is true... higher boiling
> point,
> > lower freezing point, more efficient and even
> cooling.
> >
> > Anyone with experience, I'd like to hear about it!
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