04-22-2018, 04:47 PM
If your air system is reasonably tight and you are starting from 0 pressure, you should build up to normal engine off system pressure (around 70-90 psi) within 5-7 minutes. I have run my 120 volt air compressor for 10-12 minutes without it overheating when I had a significant air leak. The larger issue is not letting the air compressor run longer than it takes to get the pressure back up to about 90-95 psi. I understand that an unregulated 120 volt compressor can over inflate your air bags.