Quote Originally Posted by knucklesson View Post
Coming from the mid engine car world I can chime in...if you can get good air to an A/A I'd go with it. Air to water is great. It just adds a few more failure points to a boosted motor (pump and hoses). Both of which could lead to catastrophic engine failure. An air to air failure (hoses-same as A/W btw) gives you no boost. To give you an idea, most of the big horsepower MR2 owners opt for a trunk mounted (that's right trunk!) air to air in lieu of the air to water. Keep it simple if you can. Haven said all that I have all the parts for a A/W system. Just need to figure out how to mount the heat exchanger.
If failure occurs with a pump system, it's likely you would know before any catastrophic damage occurs. So, you blow a line out. What's the worse that could happen.....IATs drop? Get an IAT gauge to monitor that.

My question is could you possibly convert your P/S pump to pump water or "coolant" through the system? I doubt it because of bearings or something of the nature but was wondering that all day.