Semi O/T: Got a pickup... (now Evans coolant)

[mr.utility at highstream.net (David Utley)]

Exactly...

  David  Utley

Quoting Dan Smith <sad_rocc@yahoo.com>:

> I realize we're currently talking about NA high(er) compression cars, but
> what about FI cars? Allyn's quote from their website: "Due to the typical low
> compression ratios and horsepower of vintage, antique, and collector cars,
> NPG can be used in most cases without any modifications to existing cooling
> system components." makes me think that Evans coolant would be perfect to
> drop into an FI system. With the added cooling from the combustion chamber,
> you could concievably run slightly higher boost due to less knocking.
> Correct?
>  
> Dan
> 
> Mark <mardak@cogeco.ca> wrote:
> My take on their writeup is that the coolant will run a bit hotter than
> a traditional 50/50 mix, but that the heat transfer is greater/faster so
> that localized temperature of the combustion chamber is less.
> 
> Even though the overall coolant temps are higher (say measured at the
> rad) I would assume that the combustion chamber itself would run cooler
> because the Evans coolant "strips" the heat from the head faster than
> normal coolant. Make any sense? Something like this must be happening
> since the major advantage (supposedly anyways) of using the Evans
> coolant is to prevent knock, especially on knock-prone setups (ie: high
> c/r). Since a higher compression ratio would create even greater
> localized heat in the combustion chamber this stuff must be carrying
> that heat away quicker, even though it's heat capacity is less (but I'm
> no engineer, so that's just my unedu-mac-ated guess on this...) :)
> 
> I was planning on using this stuff in the future, so someone please help
> us clear this up - is this stuff all it's cracked up to be?
> 
> Mark.
> 75
> 80 S
> 81 S 2.0 ABA/JH/4K
> 
> 
> > -----Original Message-----
> > From: scirocco-l-bounces@scirocco.org [mailto:scirocco-l-
> > bounces@scirocco.org] On Behalf Of Allyn
> > Sent: March 11, 2004 2:18 PM
> > To: Daun Yeagley; mr.utility@highstream.net; Julie Macfarlane;
> Cheapass
> > Ron Pieper
> > Cc: scirocco-l@scirocco.org
> > Subject: Re: Semi O/T: Got a pickup with 2.0 16V, do I need Motronic?
> > 
> > > > I forgot to mention, I will also have Evans coolant,
> > > > which should help
> > > > things...
> > >
> > > Can't help ya there... I think da original Cheapass Ron
> > > (TM) was going to run something like that - talk to him.
> > 
> > you know, i was doing some reading up on that evans coolant stuff:
> > http://www.evanscooling.com/html/tech1.htm#ptbl1
> > 
> > then i noticed the glaring issue (which i feared): its heat capacity
> sucks
> > ass. its like 0.7, which is less than 50/50 water/antifreeze mix
> (0.8).
> > heck, i end up keeping the rieger running on like 20/80 mix (0.9) just
> to
> > keep temps reasonable. from my own observations/tests the rieger oil
> temp
> > runs at 120c constant with a 50/50 mix (compare with 95c constant pure
> > water). i couldnt imagine running it with this evans stuff. there may
> not
> > be
> > any local boiling in the head, but the overall engine temp would be so
> > high
> > that it would be knocking all over the place.
> > 
> > it may be nice that this stuff basically wont boil in an engine, but i
> > believe that is outweighed by the high heat output of the vw 16v
> engine,
> > and
> > cant simply be 'dropped in' without some major mods.
> > 
> > if you look here:
> > http://www.evanscooling.com/html/tech1.htm#outline2
> > 
> > you will see that evans sells special coolant pumps and radiators to
> use
> > on
> > modern cars. this is obviously to overcome the low heat capacity of
> their
> > coolant. then there is this line at the bottom of that section:
> > 
> > think back to those cars with tiny engines and huge-ass radiators (not
> our
> > case). those are the cars that you can simply drop this evans stuff
> into.
> > 
> > ...so ron, was this the stuff you were gonna use?
> > Al
> > 
> > 
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David Utley
-----------
Cable Volkswagen
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