Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
-
jjjd
- Specialist
- Posts: 117
- Joined: Wed Nov 29, 2006 12:39 pm
Sat Mar 24, 2007 10:04 pm
On burnt latke it says that a propane tank will sit at around 90, when i open me regulator all the way my presure guage goes to around 120 psi or more, i want to use my gun for a science fair project, test the fuel to air mixture...i know its alread been tested to work best at 4.03% but i still want to do it. just wondering if my guage could be right or if this project will requier something special
-
noname
- First Sergeant 4
- Posts: 2698
- Joined: Mon Apr 10, 2006 9:19 pm
- Location: Bay Area, CA
Sat Mar 24, 2007 10:20 pm
Your guage is fine. Propane liquifies at about 125 psi at room temperature, so if your tank is full, the guage should go to 120 or a little higher.
