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View Full Version : 89 Z25 532BBf/OMC dog clutch drive prop question



eldridge173
08-29-2017, 10:31 AM
so my new aluminum headed 532 BBF is nearing completion, we are trying to dumb it down under 600hp and 5500rpms or less and im starting to think Prop selection. so my boat does have the dreaded OMC Dog clutch drive, honestly it hasn't been too bad of a drive for me. i need to change this prop, the previous owner used this boat for slalom skiing believe it or not and he re propped it to do so and it had no where near the top speed it should have. can anyone give me a good starting point for a prop? i would like to have this boat capable of 70mph if possible, but i dont want cause an early destruction of my drive.

Ghost
08-29-2017, 10:44 AM
What's your drive ratio? (Is it a king cobra?)

eldridge173
08-29-2017, 10:57 AM
it is a 21:17, it is the drive know as the Baby King, take a look on the link below, it show the different OMC drives
http://www.allamericandriveservice.com/OMCCobra.html