Well... it turns out the M5OD-R1HD shaft isnt HD enough for a hard launch.
I snapped the output shaft. The splines actually twisted a bit before it broke though.
I just had to put a new clutch master in two days ago, which btw the perfection clutch replacement it nice. Its all metal with a metal pushrod vs the old plastic design. The new MC came with a reservoir and everything. it bled a lot nicer than the old one too.
On another note. I did get around to testing out the York I picked up while back. Here is a terrible video of my test bench.lol I clamped an old 12V starter/generator from a Cub Cadet to my tailgate. then used a peice of scrap steel with two holes to bolt the York down to the gate. I then used an old belt from my V dub to connect the two. I used some jumper cables to run power to the motor, then some alligator clips to get power to the clutch.
I hooked it up to my OBA tank (not in the vid) and it fills it up from 0 psi in no time which tells me once its all wired up with the pressure control switch I have now it should be able to run small impact.
I plan to mount it all in the Ammo box if I can. I need to get a smalled pulley for the compressor to spin it a little faster. With the setup I have now, it only spins like 1000 rpm which is like 5 CFM. If I can get it colser to 2500 RPM I would be happy.