Prop selection 101

[Will5150]

Bought a used boat and motor. How do I know what prop I SHOULD be running ? Thanks

[21XDC]

If you post what motor, boat, propeller, pitch, RPMs, speed, etc. and tell us what it’s doing or not doing. Then you can get some recommendations. But not until then.

[wmitch2]

I have the same question !! 2002 Ranger 205vx 225 Optimax Trophy 25 1/2 Plugs best I can get is 53@5200. 6” Hyd Jack Plate. Works fine except at Clear Lake, Ca where it “Blows Out as it starts to break over even lowering the plate. Clear Lake is mostly shallow 2-15’, but it still happens in deeper water too. Clear Lake is 1400 elevation, but works fine at 1087 on the highest I normally fish. Could the extra 300 feet make that much difference ??

[21XDC]

Many of the big block motors on heavy boats and loads don't like a small diameter prop, small tube, and without a flared barrel.... Like a trophy plus.

[wmitch2]

Many of the big block motors on heavy boats and loads don't like a small diameter prop, small tube, and without a flared barrel.... Like a trophy plus.

What would be your suggestion ? It seems to run ok with a Tempest 25 as far as getting up on plane, but still only around 54 at 5300

[skennedy]

You guys that run in higher elevations need to prop your boat for horse power it makes at those altitudes . A 25 pitch woulD be fine At low elevations . But your basically running less than what the sticker is on the motor . Drop down a pitch or two and get the motor in the correct rpm range .