V2 Compressed Air Engine (INSANE PREFORMANCE)

This is a response to my bad V1 engine. This engine runs at 5000 rpm at 40rpm. It also sounds amazing! This engine is 2.2cc's and doesn't use pushrods. The build is also straight-forward and compact.

Check out my channel:
https://youtube.com/c/axeldayton

Links:
Engine Build: https://youtu.be/3rphVOjEvbU

Engine in action: https://youtu.be/CaItl07s53E

To build this engine, you will need:
8 M3x20 Screw (head and bottom end)
4 M3 Locknuts (Bottom end)
6 M5x25 Screw (flywheel)
1 M3x10 screw (piston)
1.5mm Rubber sheet (gaskets)
4.7mm ball bearing (for airtight seal)
2L Soda bottle
Tubeless presta valve (for bikes)
Bike pump or compressor
Silicone based lubricant (I used bike chain lubricant)
3.8mmID 5.2mmOD O-rings
CA glue (superglue)