Chamber Diameter

[ChunKy]

Can anyone recommend a diameter for my Combustion CHamber, i'm having a dilemma.

ChunKy

[matthouse357]

try a 3 inch chamber

[Pete Zaria]

4". It's the biggest size non-celular-core pipe you can get easily. The next jump up is really 6", which is expensive, and finding 6" fittings is quite hard.

I'd go with a 4" chamber, reducer from 4"-2", and then a 2" female adapter. This way you can screw in 2" barrels, or screw in a reducer down to 1.5" or even 1".

My cannon has a 4"x 18" chamber, which works really well for me. Also, if you can afford it, try a 2" ball valve on the back end of the cannon for venting between shots. That way you don't have to take off a cap between each shot

Peace,
Pete Zaria.