Hmm... just had a thought.
You know, since the only difference between the units is the amount of air space to compress, and the 3-Qt fits in the tunnel...what would prevent me from;
Buying the small 1-Qt system, mounting it next to the 3-Qt after removing the pistom from it, and using it to enlarge the air space on the other side of the 3-Qt system's piston? this would make the 3-Qt system into approximately a 5-Qt system. You could adjust the pressure to make it so at idle, the piston would be FULLY pushed against the far wall of the cylinder, (meaning thats a !FULL! 4.5x16" cylinder full of engine oil! thats damn near 5-Qt's) then the 1 Qt system, would house the air for the system. Doing it this way would eliminate the "fluctuating oil level" problem with any type of accumulators, because the piston would ALWAYS be in the same place-except when oil starvation occurs.
using basic calculations, if set up exactly right, (figuring approx 60PSI idle pressure)... the FULL 227 cubic inches of oil housed in the 3-Qt system should be fully evacuated into the engine, down to a MINIMUM of about 18 PSI, after figuring the 1-QT contains 100 cubic inches of air, and the oil cylinder would contain 227 cubic inches of oil (double the volume, half the pressure...empty volume would increase from 100 inches of air, to 327 inches of air, so a little more than divide by 3)
That is an OUTSTANDING volume, while retaining a pretty good margin of pressure... you could virtually NEVER utilize a system of that size.
It would offer about a 20% volume increase over the 3-Qt High Pressure System, while at the same time eliminating the hard-to-find location problem with a 22inch cylinder.
(PS- there is also enough room to put in a 2QT expansion tank rather than a 1-Qt, that would bump those numbers to like 35 PSI minimum, and a 50% increase over 3-Qt HP.)
What do you guys think?
(besides the fact I think WAY to much...damn engineer in me...)