
Posts: 3511
Location: Elk River, Minnesota | Hiya,
If you go 4 blade, you probably will not see any increase in speed due to the extra blade in the water. That extra blade would require you to lower the pitch further than just a couple of inches in order to turn it.
A good stainless will help some. The move to stainless will give you a performance edge in that the blades will not flex anywhere near as much as aluminum, and with the various designs that can be cast and forged into a steel prop, you can really dial in the rig.
I do have a thought, though, if the holeshot is really good, I would see about having the tach tested to ensure it is accurate. When holeshot is extremely quick, that is a great feature, but it also usually means the top end RPM is too high. If the tach is off and the boat runs full speed, it could greatly shorten the life of the motor. I do know there are many 2 strokes out there that have rev limiters on them, although I don't know if that particular motor has one on it.
To be safe, I would have him check the accuracy of the tach, and if it is off, get it adjusted and do a water test. A good baseline will be huge and if that tach is off, it could affect your decision on what to try..
Steve |