Originally Posted by Matt 05'FX4

I can't see using your A/C to provide cool air for the intake very energy effecient at all. The power gained will be lost turning the A/C compressor anyway so in that case it takes power to make power. Using an injection method as mentioned earlier is a good idea, alcohol and water injection is usually a cheap easy way to get cooler air. I have this kit sitting in my garage waiting for the release of the Roush intercooler. It is a neat idea using CO2 sprayed onto the intercooler to increase its effeciency by as much as 50% they claim. And I do believe it will help a lot because CO2 is VERY cold when sprayed onto stuff. Plus CO2 is really cheap, like 80 cents a pound from a welding shop vs N2O which is a LOT more. It would be neat on race day to freeze the intercooler right before a run. When I get this hooked up, I will do a run without it and with it, and I can look at charge air temps with my X2 and laptop to see if it is really working. Here's a few pics of what I am talking about...