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i was hoping it wouldn't take that many welds, but now that i look at the bat i see that the combustion chamber must be shortened drastically. and it looks like the tailpipe may be too small. the bat i'm looking at would only seem to work if i cut off the combustion chamber on the level aprt of the ...

i found a few old baseball bats. i will start construction immediately, they look like the chinese valveless would work best. any thoughts?

so i made a few adjustments, and it works. i found a perfect diffuser, but i couldn't figure out how to attatch it. it was a cone made of aluminum. i was just rummaging around and i found a large thick washer that fit perfectly in the intake. i am amazed to report that it actually works. the thing i...

i borrowed my neighbors leaf blower, it makes much less airflow than the shop vac (the shop vac is as much bigger than my 36 inch tv). i am still getting a lot of flame though the front, i am using a stainless strainer as the flame holder, just like the one you used. my front end is actually pressur...

i am having a few problems keeping my ramjet running. most likely it is my ful setup, its a mix of gasoline fumes with a little liquid fuel. it burns so hot that the brass fuel injection gets red hot (changing the color of the flame to green). i will probably change to propane soon, but until then a...