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

Mon Sep 15 18:41:24 EDT 2003

That is my belief Frederick.
I think they are just filled solid with something, and shut down after 4
seconds or so.
At upwards of 5000 HP I don't know that they could put a rad on it big
enough to allow any sustained driving.
Imagine having 5000 HP on the street. Life would be good, until you had to
fill her up.

Mark S
----- Original Message -----
From: "Frederic L'Huillier" <Frederic.L'Huillier at Siebel.com>
To: "Lewis, Gary M" <gary.m.lewis2 at boeing.com>; "Kenneth Hayes"
<abiglizard at worldnet.att.net>; <s-car-list at audifans.com>
Sent: Monday, September 15, 2003 2:47 PM
Subject: RE: [s-cars] Air to Liquid Intercoolers - Comments??

> Hi,
>
> Since we are talking about Drag race cars (I am talking about the
> monsters with V8 mit compressors which compete in NHRA)), is it correct
> that they do not have radiators because the time the motor is running is
> so short that cooling the engine is not necessary.
>
> Seems strange to me but after all we are talking about dragsters here !
> !
>
> Regards,
> Frederic
>
>
> -----Original Message-----
> From: Lewis, Gary M [mailto:gary.m.lewis2 at boeing.com]
> Sent: Monday, September 15, 2003 7:47 PM
> To: Kenneth Hayes; s-car-list at audifans.com
> Subject: RE: [s-cars] Air to Liquid Intercoolers - Comments??
>
>
> I know they are the hot ticket on air to liquid drag cars.  But the
> radiator sits in a bucket of ice.
>
> Also noticed that the Mercedes AMG XX55 500hp supercharged monster
> family is air to liquid intercooled.
>
> -----Original Message-----
> From: Kenneth Hayes [mailto:abiglizard at worldnet.att.net]
> Sent: Saturday, September 13, 2003 8:09 AM
> To: Lewis, Gary M; s-car-list at audifans.com
> Subject: RE: [s-cars] Air to Liquid Intercoolers - Comments??
>
>
> my random thoughts
>
> you could build a secondary system that was a liquid loop that went
> through a newly designed intercooler that utilized the liquid as a
> coolant for the turbo air, but you'd have to cool that secondary system
> with another heat exchanger that was air to liquid.  liquid is much more
> difficult to cool even though water is a great moderator which means I
> agree with your supposition on size.  It'd have to be much bigger to do
> an equivalent amount of cooling, but the consistency would be there.
>
> 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?
>
> Ken
>
>
>
> -----Original Message-----
> From: s-car-list-admin at audifans.com
> [mailto:s-car-list-admin at audifans.com]On
> Behalf Of Lewis, Gary M
> Sent: Friday, September 12, 2003 12:19 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] Air to Liquid Intercoolers - Comments??
>
> No one seems to talk about them on-list.  Seems like a great way to dial
> in boost/timing maps when intake temps are nearly certain, or at least
> in a tight range.
>
> My suppostitions...
>
> Downsides:
> Weight  - gotta add water and pipes
> Space/Package  - gotta be bigger than a air to air intercooler
> Throughput  - I'd think with the bigger packaging, you are sacrificing
> some IC size, and size equals density
>
> Upsides
> Packaging  - "But you just said..."  Yeah, but these keep the air cooler
> than the same size air to air.  If you can put in the same size core,
> you should have more density. Air Temp Certainty  - Should make software
> programming easier
>
> And of course, the twist.  Use an air to air intercoler, then water
> inject. I believe this is the best solution.  I nearly did this on the
> 200 TQA, but I found (and bought) the S6 TQA
>
> Comments welcome...
>
> Gary Lewis
>
> 1995.5 S6 Avant, Green/Ecru, RS2 MAF, RS2 Exhaust Manifold, RS2
> Injectors, Custom Turbo (K26 Turbine, Factory K26 Cold side (Audi Works
> '999' P/N) with 50mm intake and custom Innovative Turbo compressor
> wheel), Bilsteins, Eibachs, Big Reds.
>
> 1990 200TQW, K24 Turbo, 1991 TQ Intercooler, 1.8 bar, Bypass Valve,
> Euro's, Bilsteins, Redline in tranny and diffs, FOR SALE
>
>
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