barrel / air chamber ratio
Posted: Sun Oct 30, 2011 5:47 am
one of my past experiments had a 70cm copper barrel (10 mm inner diameter) and for the air chamber i had the same length copper tube but in 22 mm diameter.
I could only pump 110ish psi and becoming very difficult (using a bike pump)
power wasn't that great and pumping for a second time was was too tiring
why would this be?
I could only pump 110ish psi and becoming very difficult (using a bike pump)
power wasn't that great and pumping for a second time was was too tiring
why would this be?
