Can anyone help how many psi/cfm does the bus produce ???

[lapeer20m]

at idle a bus' compressor doesn't produce much air at all. At high rpm's the compressor is capable of making a lot more cfm. I have a truck air brake compressor in my barn connected to a 220 volt 5 hp electric motor and it'll knock the socks off the now deceased stock compressor.

the most simple solution for more cfm is to run the bus' engine faster. Swapping pullies isn't a good idea. If you were to swap pulleys to make the compressor spin faster it would have more wear and tear on the compressor components causing it to fail sooner.

[lapeer20m]

tanks are really easy to tap into. the drains are screwed in with common pipe thread.....like 1/4" or 3/8" npt. All you have to do is remove a drain, put in a tee reinstall the drain and a quick disconnect for an air hose. making sure to use proper thread sealant.