Home electrical wiring help

i have no info but would like to see some... i can wire a car but my house wiring always is a fail

The wire is wrong. You need 3 wire (red, black & white) with ground and minimum 10 gauge. The circuit breaker doesn't look correct either. you need one that is usually double wide for the 240v. Red will go to one and the black to the other. The electrical box is 4x4 as the two standard 240v plug receptacles are for dryers and stoves. The plug you use on the compressor must match the blade configuration of the receptacle. If the wires from the service panel to the outlet box are going to be exposed in the garage you will also need to use specially wrapped conductor. I don't recall it's name but it's usually black and you will need the compression fittings where it connects to the box and panel and clips to hold it to the wall.

yea... its odd crap... i need the 240 for a powder coating oven :/

Yes the wire needs to be two phase conductors, neutral and a ground. The receptacle by amps and configuration needs to match the plug on the compressor, or you hard wire it. But if you hard wire it, you need a disconnect means with in sight or 25 ft, iirc. Also think you need a 30 amp breaker for a 30 amp circuit.

Also need to completely shut off the panel, and lock it out, when installing the breaker.

Also consider how you are going to get the wire to the box, ie, drilling and fishing through the wall. And cut a nice hole in the wall for the box.

I do most of my home electrical, but have a staff at work who can give detailed advice, and I have a bunch of books on wiring.