[s-cars] Air to Liquid Intercoolers - Comments??

[Kenneth Hayes]

My question was rhetorical.  "not much gain for the effort"   is what I
wrote in response to a simpler system than I created.  We can think up many
different ways to cool air (or whatever) and they can get very elaborate.
However, simpler and reliable (or lighter) seem to win out proven on the
track or rallye roads.  And these teams have the money to sort out what
works and what doesn't.   So when we look to improve our cars, I believe,
looking at what's been done on purpose built cars is where we'll find our
answers.  Sure some racing improvements are not drivable (suspension, cams
set to work best at 2500-8000 rpm, etc) but at least we can temper these
'upgrades' with how the car is being used.  But to create something that
isn't being used in racing is to create something usually not worth the
effort.

my 2 cents, sorry if I threw you guys.  maybe I should have kept
typing...."not much gain for the effort".  whether it is weight, system
complexity, desired improvement, or need.

Ken


-----Original Message-----
From: s-car-list-admin at audifans.com [mailto:s-car-list-admin at audifans.com]On
Behalf Of Robert Myers
Sent: Saturday, September 13, 2003 10:03 AM
To: Kenneth Hayes; Lewis, Gary M; s-car-list at audifans.com
Subject: RE: [s-cars] Air to Liquid Intercoolers - Comments??

--
[ Picked text/plain from multipart/alternative ]
At 11:08 AM 9/13/2003, Kenneth Hayes wrote:

>so if we jumped to purpose built race cars why aren't they doing something
>like this?  not much gain for the effort maybe.  But how about an electric
>a/c pump & system (closed loop) that keeps the setup air to air and
utilized
>an a/c type system to standardize the temp of the heat exchange?  this
could
>be used down stream of the normal intercooler to allow the normal crossflow
>of air to cool the turbo air then further cool it by the second heat
>exchanger.  Not only bringing the temp down, but also standardizing the
>temp.  So why aren't they doing this in purpose built race cars?

Weight penally?  This setup would require a compressor, a condenser (an
evaporator also but it is already present as the secondary cooler in the
system you described), an electric motor to run the compressor and some
parasitic power from the engine in the form of electricity from the
alternator to run the electric motor.  Of course additional weight for
brackets, etc., would also be needed.  That strikes me as potentially a
rather large amount of extra weight to carry around just to provide some
extra cooling for the incoming air charge.

_____
The Shrub is losing popularity.  Looks like it's time for another
invasion.  Oklahoma this time?

Bob
*****
  Robert L. Myers 304-574-2372
  Rt. 4, Box 57, Fayetteville, WV 25840 USA WV tag Q SHIP
  '95 urS6 Cashmere Grey - der Wunderwagen  ICQ 22170244
  http://www.cob-net.org/church/pvcob.htm
*****
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