WOULD SOMEBODY EXPLAIN THIS
PROP TO PAD
WOULD SOMEBODY EXPLAIN THIS
Level the lowests portion of the hull (pad) a 3-4 ft level would be best. Level the motor so the prop shaft is level...most people put a small level on the cavitation plate.
Measure from the lowest portion of the pad to the ground.
Measure from the center of the prop shaft to the ground.
Subtract center of prop shaft to the ground from the distance from the pad to the ground distance and this will be your prop to pad distance...see A and B in the diagram.
How do you know what that distance should be for your set-up?
Trial and testing. Most "regular" bass boats, 3.5" is a good starting point. Too little distance prop to pad will result in low water pressure and prop blowout in turns. Sometimes even decreased lift. Too much distance can result it less top end speed, poor holeshot and sometimes even excessive chine walking (if your boat runs that fast). Try it in 1/8" increments until you find the sweet spot (best handling with good water pressure and maximized top end speed).Originally Posted by skipdog
1998 Ranger R93
1998 Mercury 200 EFI
"Life, liberty, and the pursuit of happiness."
Make sure the ground or pavement your measuring to is level too.
Thanks guys, bought a boat last spring and haven't completely dialed it in yet. Hope to figure it out if spring ever shows up here
If your boat doesn't have a jack plate 3.5" is too high and you'll probably end up at 4.25" under.
It has a manual jack plate. Came with a 26 tempest plus but was a dog out of the hole with a full load. Switched to a fury and now I need to dial in the plate.
26" tempest aren't very good out of the box but you may have needed to adjust the PVS holes in the prop for hole shot. A fury may hole shot better but they don't carry a heavy load as well as a tempest. Try the prop at the same height the motor is set now with all holes open on the fury and you'll have a better idea if it's too high. Your shooting for 3500-4000 rpm's at take off.
Boat came with 1 hole open and 2 reducer plugs(think they were mediums) when I pulled one more it blew out climbing out of the hole
You probably needed to put a large plug in the hole you pulled the plug out of. You might end up with all large plugs or one large, one medium, two large or any combination.
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