What kind of prop for ski/wake boat?

Question

i have 87 mastercraft prostar with the 240HP 351w nonpowerslot, 1:1 tranny. my old prop, the original OJ 13x13 LH is missing a big piece. what would be a good uprgrade from this prop? a 3 blade or 4 blade? i mainly wakeboard, not much skiing.

Answer 1

If you like the prop that was on it originally, some boat shops can send out yours to possibly have rebuitl, that way you can have a back-up when you need it.  It will depend on how much is actually missing, however.  If you are mostly wakeboarding, you may not want to go with a 4 bladed prop, more power, smaller wake.  If you want a larger wake, I would stay with a 3 bladed.  Check with some local marinas for the correct pitch for what you need.

Answer 2

First thing I would do is see if you can get a wider prop (longer blades). Measure the clearance b/w the tip of your prop blade now to the closest obstruction (on mine, its the trim zinc). I noticed on my old prop that I could easily get another inch out of a new prop. Next, I would experiment with a 4 blade prop, instead of a 3 blade. It should give you more power, torque, and top end speed. I would recommend aluminum, I feel its the best overall for the $. You may want to check your pitch, it affects pick-up versus top end speed.