Hello, I have a problem that i cant figure out. First off i have air ride on my Pontiac. I have (2) 5 gallon tanks and (2) 450cc Viair Compressors. It takes 6:45 to fill 0-80 PSI.  And 0-95 PSI with No Air filter in 6:45 (Only did it 1 time) Your website says it should take (1) 450cc Compressor to fill (1) 5 gallon air tank in 6:45. Is there something wrong with my setup? I wired the compressors together and ran it straight off the battery. My leader hose's are not leaking. What could be wrong if nothing?

cant say for sure but i wanna say it sounds like your not getting enough power to em. Possibly a bad ground thats not allowing optimal performance ? any out of the ordinary sounds?

actually just read the "i wired em togehter" part, what guage wiring are you running and is there any fuses, circuit break, any of the sort in the mix?

Im running 10g Wire with no fuses/CB's