I can control the time between injection and ignition( pull trigger half way to inject gas, pull trigger all the way to ignite) this system allows me to do more than one injection of gas before ignition if I need to, where can I find plans on a fan system that will not be destroyed from firing ??? T...

hi i have just built a spud gun with a combustion chamber made of 50mm PVC and barrel 16mm aluminium, i have completely seal the end cap and installed a valve so that a fuel cell from a pasload nail gun injects a limited amount of gas into the chamber. As the trigger is pulled the gas is released th...