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Propane gun build

Last post by jimmy101 « Sat Jun 27, 2026 3:40 pm
Posted in Combustion Cannons
Replies: 1
by Mb01 » Sun Jun 21, 2026 7:27 pm » in Combustion Cannons

First post

Before I build I want to see if my calculations are correct. If I start with the 1.5:1 ratio, I will have a 4 inch x 18 inch chamber and a 2 inch by...

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The propane should be 4%, so about 148cc.

Your chamber is 50% bigger than it needs to be. Might as well scale everything so that the fueling is a...

1 Replies

736 Views

Last post by jimmy101
Sat Jun 27, 2026 3:40 pm
Boyles Law / Burnt Latkes Fuel Metering Calculation

Last post by Ratguy « Wed Jun 24, 2026 2:49 pm
Posted in Combustion Cannons

by Ratguy » Wed Jun 24, 2026 2:49 pm » in Combustion Cannons

This is more of an informational post for people who are starting out and are not familiar with Boyles law. I decided to post this because I was...

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497 Views

Last post by Ratguy
Wed Jun 24, 2026 2:49 pm

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