Yes it is made of metal... Sorry to forget that fact.

I am mid way threw fabricating my chamber it will be 16" x 3" and the pipe will be 3/16" thick pipe wall.

I am planning on going as high as 6x.

Anyone see any problems?

I was going to use "crazzy carpet" you can pick them up for about 5 bucks and you could cut a couple hundered from one.

I gathered my information from SpudBlaster15 discussion on "Fuling Hybrid 101"

I am not measuring my mixture based on Atmospheric pressure "x" I am basing my measurement on Measured Propane Pressure and then adding an approperate amount of Compressed air.

The chart did not display well
i have an attached jpg

I am making a new Hybrid and i am going to use Measured propane with a Low pressure gauge, since if you add propane into a sealed chamber the pressure is bound to increase. and by knowing the mix ratios, you can come up with comprehensive measurement system. Has anyone measured there propane this wa...

This is a handy page to sort out how many PSI/Bar

http://www.ilpi.com/msds/ref/pressureunits.html

I have noticed many/most of the Hybrids are small in chamber volume. I was considering making one 3" x 14". Is this too big, what are the guidelines one should follow for hybrid chamber/barrel considerations, also looking to shoot golfballs a mile.

Oh yeah...

I will join his religion too.....

To answer an earlier question, I work at a demolition company, so i get loads of interesting stuff.....

I think It will be an 8" PVC with a propane moniter, I might shorten the chamber to about 10".. As for the chamber fan you are right it will be easy to mount.

Yes I have about 10' of 8" and about 10' of 5". I dont want to just make a big gun just to make a big gun, i want to make a big gun that i can have some serious fun with....

Has anyone tried an 8" combustion chamber, and reduced it down to 4" and then down to 2" for the barrel?

It sounds like fun. probably could get a hell of a blast.

How long would the barrel need to be with a 8" x 12" chamber

I use oust 95% of the time, i had challenges getting it to light and had to change it to using a camera flash ignighter, and I had less than 5% failure rate. I have tried others with out much sucess, i have also installed a small 1.5" fan and it also made a huge difference.

I think you guys are nuts for trying ace/o2 in any pvc or abs, i have mixed acedeline and ocygen in a baloon the size of a tennis ball, placed it in a cylender 4" x 14" (metal) and ignited it placing only cardboard on top.... It nealy bloew out my eardrums, and the cardboard had a perfect circle whe...