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View Full Version : After cooler pictures? Cut-outs?



Carzzi
04-23-2002, 04:09 PM
Could anyone here please post a pic of their water-air aftercooler from their SC'd sixes? I'd like to know how large it is. Since water has a much higher specific gravity than air, it must be pretty darn small, compared with an air to air IC.

Does the aftercooler use a hookup to the cooling system or is independently irrigated? If independent, what kind of recirculation system does it use? Does it have another heat exchanger to dump the heat absorbed from the compressed air charge? How about a fan?

I'm forming evil ideas of force-feeding my Z3 2.8 after jan 2003 (CPO warranty expires). I'm thinking: Lysolm + water-air IC :evil2:

///MCubed
04-23-2002, 06:10 PM
here is a pic, not much help, but give you an idea (doesn't show the heat exchanger or the plumbing):

http://www.racemarque.com/Default_files/aftercooler_image.gif

jcarp
04-23-2002, 06:37 PM
Here's a picture of the intercooler radiator with a SPAL push fan attached. The system is self-contained and separate from from the engine cooling system.

psk145
04-23-2002, 06:59 PM
here's a pic of my system when it was new and on my 2.5

psk145
04-23-2002, 07:00 PM
pic from RMS

paul e
04-23-2002, 08:09 PM
Psk,

Alot of people refer to the heat exchanger as the part that sits in the nose of the car, ie, that part I always used to call the 'core'...What then is that black powder coated geometric shaped item in front of the TB? On a water/air system, is that a second heat exchanger?

psk145
04-24-2002, 12:53 AM
thats the actual aftercooler. Thats what cools the compressed air. The water used to cool the fins are then pumped to the heat exchanger to "cool off"

paul e
04-24-2002, 08:17 AM
Thats what cools the compressed air

Right...so why isnt That called the heat exchanger, instead of the core, which I find almost everybody calls the heat exchanger...It think its cause people confuse air to air, where the core IS the heat exchanger, and water to air , where it isnt!

CSBM5
04-24-2002, 12:42 PM
Technically, speaking from a thermal engineering standpoint, both the "aftercooler" element in the intake path and the "core" in front of the radiator are both called heat exchangers. All these distinctions don't exist in the engineering world where a horse is called a horse:) .

Chuck

psk145
04-24-2002, 01:03 PM
Originally posted by paul e


Right...so why isnt That called the heat exchanger, instead of the core, which I find almost everybody calls the heat exchanger...It think its cause people confuse air to air, where the core IS the heat exchanger, and water to air , where it isnt!

dont know, never got myself too concerned about why things are called what. I know what it does, and thats all IM concerned about. They can call it a strawberry for all I care.

RichP
04-24-2002, 01:17 PM
they are both heat exchangers, although not applicable in terms of using water, evaporator and condensor would be more appropriate for which one is doing what.

paul e
04-24-2002, 10:27 PM
dont know, never got myself too concerned about why things are called what

Uh, pSK, ever try and communicate with anybody? Kind of difficult unless people agree on basic language, isnt it?

SilverStreak
04-24-2002, 11:50 PM
I know what you mean, terminology can get in the way, especially online, in email, etc.

Honestly, I describe stuff by it's location, function, shape, size, color, etc, cuz one company calls it X, another one calls it Y, and most other people agree to call it Z....

psk145
04-25-2002, 01:24 AM
uhh yeah paul I've communicated with people. Thanks for asking

Oh, and I can also communicate in different languages as well. But you dont necessarily have to speak the same laguage in order to convey a message

paul e
04-25-2002, 08:28 AM
uhh yeah paul I've communicated with people. Thanks for asking

Dont get hot PSK....Ive actually enjoyed your posts...I was just commenting, rather snidely I might add (sorry), about your rather dismissive comment about language...With your multilingual skills, I see the comment was ill founded...Accept my apologies.

Carzzi
04-25-2002, 09:54 AM
..is... awww, fuhgeddit ;)

Hey guys, thanks for all the photographs! It's nice to know that a proper aftercooler is available. What kind of pump (flow rate) does the water/coolant circulate through?

I wonder if anyone has used it on their turbo-setup. Water, having a higher specific heat capacity than air, whould cool air better, for a given volume of charge. But I guess space, complexity and cost restrictions would preclude the adaptation of a large enough water/air system for a turbo, correct? Oh, and water, due to its high SpecHeatCap, would also be harder to cool down to ambient thanks to the high "duty cycles" that turbos typically run at, vs CF SCs...

So here's another question, what is the difference in charge temperatures before and after the w/a RMS aftercooler system for a given boost level (say 7.5 psi), vs. an air/air IC, say the one provided on ActiveAutowerke setups (@ say, 7.5psi)?

Oh I've got a bad cough... coughgetblowncough :biglaughb

psk145
04-25-2002, 01:07 PM
paul: I also apologize for my smart ass remark. I just took your post kind of offensively and gave you lip right back.