SpudFiles

just went through that phase from spray and pray to propane metered injection , inside fan , dual sparks and a rifled barrel but it is not totally done just needs to work out all the bugs. But you will need a fan to mix the propane and air and to vent the cannon if you don't your cannon will be ...

nice cannon i am just finishing up a propane combustion cannon, what kind of battery's do you use for your fan