[EricH]

Originally Posted by sethw

It will certainly depend on the flow rate into the cylinder, but in my experience the additional force provided by the larger bore cause the piston to accelerate more rapidly, and hence extend in a shorter time. However, the systems I was working with when I made those observations were a good bit larger than those we're working with in FIRST (especially the tubing). If the flow rates are low enough here to counteract the greater force of the cylinder, I stand corrected. I haven't tried it yet with these components.

I still don't get what you are trying to say. A large bore cylinder has more volume to fill, so at a constant flow rate, it will take longer to fire. Operating pressure here is 60PSI.

Now, if you are referring to the tubing, yes, larger tubing will fire faster. Operating pressure here is 60PSI.