Propane ratio

[patchystar04]

I have a new gun and I hate cleaning hairspray so i want to use propane My dad won't trust me with a metered system cuz then the tank is with the gun so i have to do manual injection (welding torch in chamber) so how long would i need to hold the thing in there (in seconds)if my chamber is 3''X13.5'' and the barrel is 1.5''X36'' help would be much appreciated

[frankrede]

About 10 seconds.
Your dad is not thinking right.
You need a ball valve atleast for a direct injection.

[MisterSteve124]

What he's trying to say is his dad doesn't want the propane tank to be attached to the gun incase his explodes which is reasonable.

[patchystar04]

absolutly Mr steve yup after a couple tries i found 6/7 seconds works perfect Way more powerful (and cleaner) than dumb old hairspray
PS i used a camppping type gas thingy and a valve from this little gas grill so if you used a real torch it may be different

[boilingleadbath]

I point out that you could build an off-boardp (detached) propane meter... many people have done so, as it can provide services to multiple launchers (thus saving money).

[patchystar04]

aahhhh idk this direct inject. works fine and i use it on my mini too so its fine are you talking about the thing with the shrader? valve on it?? i thought of that but don't wanna drill any more on it??? is it worth it ???