7-sins

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2449359640

This kit looks pretty nuts. I was thinking about the M2 large before but maybe this will be a better option. One main thing with a huge IC is the turbo lag... if you just have a tube to pass though there would be slim to none. They offer a larger water tube 6"x10" for more demanding applications and if you want to weld im sure it wouldnt be hard to fab. a longer one. The radiator they give you is smaller than the coolant radiator so it wouldn't block off all the air getting to the cooling system. Not to mention you could customize a nice water tank to fill with ice for track days, probably even up the pump so it will flow better. It's not as easy to setup as a SMIC but it does look interesting.

tmiked

POS

XSTransAm

water to air intercoolers are only efficient in 1/4 mile streches... they are horrible for daily driving due to heat soak... once they heat up they are doing more damage than good.

rallimike

iTrader: (1)

Don't you just love helpful contributions like "POS"?
How will it heat soak when the water is being circulated to a radiator? Put the radiator in front of the passenger wheel well, so it keeps the heat from exiting under the hood. Cooler engine compartment temps, no interference with the radiator, and much reduced lag. It will work

XSTransAm

im not speaking from speculation, ive used air to water intercoolers on a car, and had it mounted in the front, with a much bigger radiator and pump than that one is offering. It just dosent cool quick or efficient enough to keep the water cool.

However for a quarter mile it is AWESOME, you can even put ice in the thing to keep it extra cool. Alot of drag racers use these. Unfortunatly its just not a good street setup. IMO

FormerPorscheGuy

ZeroBanger

everything I read, all research I have done told me that air/water IC's are far superior to air to air, but the plumbing required is a PIA.

Redrotor

I have a2w intercooler in my FD.
It doesn't heat soak!!

well because you're sitting in the traffic the air before intercooler is not really hot because it's not compressed.
actually this air can keep water stay not so hot.
and as soon as you start moving water can cool down
really quick.
alos this kit has fan behind so it should be better.

don't ask me for actual intake temp but I keeep monitoring the water temp and it's good.

and also funny thing my car cools alot better with a2w
I think my stock intercooler was blocking the air passage.
also i got 1psi boost gain.

I used gmc typhoon intercooler core and 10*10*2 inch
heat exchanger.

I'll take some picture later.

XSTransAm

turbojeff

iTrader: (30)

Exactly. Air/water ICs give a more consistant intake temp but running a pump and another heat exchanger up front sucks. If you ditch the AC and convert the condensor to a cooler for the water (you will want some type of anti-freeze in it) in the IC 1/2 the system is already setup for you.

IIRC the early 90's Typhoon and Syclone turbo V6 used air/water ICs.

doncojones

At some point the Celica alltrac (awd turbo with the 3S-GTE 2.0 liter four, same engine as MR2 turbo) used an air-water intercooler.

InsaneGideon

Funny this subject should come up... Today, my father received a Ford SVT book (he has a Lightning, so they send him stuff periodically). Next to the picture of the new "500hp" engine, they describe: "The John Coletti - patented Super Cooler uses the air conditioning system to chill fluid for the intercooler"

I'm sure many have thought of such a thing before. I just never thought I'd see such a thing on a production auto. I have doubts that the A/C has the heat removal ability to cope with extended boosting conditions though.

badbu68

Him, if a2w ic don't work, I must really be a sucker then

http://cgi.ebay.com/ebaymotors/ws/eB...category=33742

MillSpeed

iTrader: (1)

I bought one of the 6x10" PWR chargecoolers for my abandoned VW Rabbit 16v turbo project (I got distacted by my RX7). It looks practically custom made to fit in the 7's engine bay plus it will drastically simplify (and shorten) the intake pipework, especially compared to some of the front mount kits I've seen. Planning to run it together with a Garret t04s (also salvaged from the dead rabbit). Using the IC heat exchanger should simplify things a great deal, plus its got quite a large core area (from what I can tell looking into the car's mouth!). Wrapping all of the water pipes in foil and putting the reservoir inside the car should help with the heat soak problem. It's worth a try, especially as I've already got most of the system ready to go.

KevinK2

Pics would be cool. Good A/L setup always has low pressure drop ... likely why u got more boost.

Key for street and dr-ed use is a real front rad, like a 1-1/4" scirroco 2 pass core .... custom end tanks for 3 or 4 pass would be better, in front of main rad or ac coil. No reservoir required. High pressure oil coolers and ac condensors are not great heat exchangers. Manual switch for stock fans would take care of heat soak in traffic, and the fan-mod timer would reduce heat soak after shout shutdown.

I would think the spearco types would plumb better in the FD, vs the pwr cylinders.

search net for air water intercooler rx7 and srmotorsports.

pomanferrari

iTrader: (1)

That was my reaction too when I saw the post. No supporting facts nothing, just a conclusion.

Air to Water I/C is more complex due to pumps and lines running all over the place but it's worth it if you have a really packed engine compartment. Since water is at least 3 times better at heat transfer, the size of the unit of the hot side would be reduced correspondingly in the engine compartment. Likewise for the heat exchanger unit on the cold side, its size would be reduced. Very stealthy.

I thought about doing this buying off the shelf Vortec A/W intercoolers but couldn't stomach another set of pumps/wiring switches sensors, coolants, as I got an Aquamist 2S (not completely hooked up); HID lights; fog lights; auxiliary electric water pump; stereos and so on.

Plus the M2 large is bad *** looking when you pop open the hood.

InsaneGideon

So how much more do these A/W IC's weigh when full?

big_wig_074

chargecoolers are good for cooling at lower speeds in my experience,however at higher speeds you are better off with a large intercooler,so charge coolers are great for 1/4 miles as they keep the charge air cool off the line where it really counts for acceleration!however,why not run it in conjunction with a large intercooler if your really serious about cooling?