I ran into a guy at a saturday night street race a while back who installed an air/water I/C on a mustang SVO. It`s just a little turbo 4. I cannot verify the numbers, but he claimed a 275 degree drop in air charge temp. I rode in the car and he was boosting over 20 PSI with no discernable detonation. You never know what level of truth you are getting at street races, but he seemed straightforward. I have been contemplating what it might take to invent that type of set up, but like so many other good ideas it sits idle at this point.