[rthouck]

After extensive research I found street cars should use air to air = track cars air to water but only with ice. Best explanation for all this garbage....

The heat has to be transferred to the air eventually if you do it through water thats just one more change it has to be make before being removed from your air. Basically your adding a step with air to water. So if your not going to use ice all the time - air to water is a waste. And its less efficient. I wish I kept the websites I researched this all from. I'll see if I can find them.