I want to run a water to air intercoller on my Turbo NA project buit i don't know where to fiond one all i really nieed to find is the intercooler i plan on using the AC expantion side coils to cool the water, although i may go for something in front of the radiator to help cool better.......... Now for the question what if any cars came stock with a water to air intercooler and does anyone make an aftermarket unit that is not car specific?

 

Aftermarket http://www.pwr-performance.com/page867169.htm

 

a little more pricy than i wanted to spend for that much i'd go front mount. Any1 got a lower price alternative?

 

If you're clued up, it's not too hard to make one yourself. Air-air intercoolers can be enclosed in sheetmetal with the appropriate fitting attached, or you can use an off-the-shelf heat exhanger. The reservior can be bought or made. The pump needs to be carefully picked to get the right balance between flow and noise. An A/C core or small radiator can be mounted out the front. Then you just plumb it all up and figure out a way to control it.

Here's some links that might help you.

Info on how intercoolers work
Info on water-air intercoolers
DIY water-air intercooler on a WRX

 

Thanks NZConvertible, At first my plans were to make one on my own with sheet metal and an oil or tranny cooler, but if i can find one from a stock application or a cheap aftermarket one it would save me some time and some painful cuts that i always seem to get when i work with sheet metal

 

The construction of an air-air core and an air-liquid core are different. You can certainly use an air-air core to make a ghetto air-liquid intercooler, but it will not have the efficiency of a purpose-built air-liquid intercooler.

The same thing goes for your AC condenser, oil cooler, or other heat exchanger. While these may work, you would be better off with a small radiator that is designed to cool a water / ethylene glycol mixture.

Spearco universal air/liquid intercoolers here:
http://www.turboneticsinc.com/liquid.html

Air-liquid intercoolers are expensive. If you are just looking for something cheap, then you should use an air-air intercooler instead. Besides, an air-air intercooler is going to cool the air charge better than an air-liquid intercooler. The only way an air-liquid intercooler is going to work better is if you use a proper core and hook it up to an ice bucket.