[jrocket567]

lets see if im thinkin right... if the motors in fact do heat up the air inside, which will raise the pressure to above 120psi.. the compressor will (should) cut off, and the valves will release the extra pressure.. the now heated air (higher pressure) would allow less 'fresh' air in.. right?
now that youve heated the air up, there are fewer molecules of air in there.. and fewer molecules can fit into the tank before hitting 120psi... isnt that sorta opposite of what your goal was? if anything, id attempt to cool off the tanks as much as possible..and increased tank pressure doesnt mean jack squat on working pressure..
its been a long day so my logic might be a little confusing/wrong- let me know
j