Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 45 users online :: 4 registered, 0 hidden and 41 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Propane ratio

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

Propane ratio

Unread postAuthor: patchystar04 » Sun Oct 22, 2006 12:39 am

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 :D
  • 0


patchystar04
Private
Private
 
Posts: 9
Joined: Sat Oct 21, 2006 9:57 pm
Reputation: 0

Unread postAuthor: frankrede » Sun Oct 22, 2006 3:13 pm

About 10 seconds.
Your dad is not thinking right.
You need a ball valve atleast for a direct injection.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: MisterSteve124 » Sun Oct 22, 2006 3:32 pm

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.
  • 0

User avatar
MisterSteve124
Colonel
Colonel
 
Posts: 702
Joined: Sat Feb 11, 2006 10:11 pm
Location: West Chester, PA
Reputation: 0

Unread postAuthor: patchystar04 » Sun Oct 22, 2006 5:17 pm

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
  • 0


patchystar04
Private
Private
 
Posts: 9
Joined: Sat Oct 21, 2006 9:57 pm
Reputation: 0

Unread postAuthor: boilingleadbath » Sun Oct 22, 2006 8:31 pm

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).
  • 0

User avatar
boilingleadbath
Moderator
Moderator
 
Posts: 1642
Joined: Sat Mar 12, 2005 10:35 pm
Location: Pennsylvania, USA
Reputation: 0

Unread postAuthor: patchystar04 » Mon Oct 23, 2006 7:19 pm

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 ???
  • 0


patchystar04
Private
Private
 
Posts: 9
Joined: Sat Oct 21, 2006 9:57 pm
Reputation: 0

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'