We sell U-flex hydaulic steering
systems where I work
. The capaity of the ram should be marked on it, divide that number by the capicity of the helm to determine the amount of turns lock to lock. Hydraulic helms and rams are fairly interchangeable (unless you have an air assisted helm, such as Hynautics). Want to decrease the amount of turns? Increase the capacity of the helm to obtain the ratio you desire. By the way, the U-Flex components (made in Italy) are very reasonably priced, and the best quality I have come across.
L S/V Eva Luna