atrick
Active Member
- Mar 4, 2017
- 550
- Boat Info
- 1998 400 Searay Sedan Bridge
1995 Searay 290 Sundancer
1990 21 maxum
2001 24' FlotBot Pontoon Boat
- Engines
- Twin 3116 Cats
Twin 4.3 mercrusers
305 chevy with a alpha one drive
Yamaha 90 HP Outboard
My three blade props were good for my wide open throttle rpm (4800)so I dropped 1" in pitch and my wide open rpm is still 4800 with a dirty bottom so it worked out good. Had 14" x 20 pitch 3 blade stainless replaced with 14 1/8" x 19 pitch 4 blade stainless. my motors are 4.3 LX which have a weber 4 barrell on them and are rated at 180 HP each so if your HP is different you might need to adjust a little. Best thing I did to that boat, low speed handling is greatly improved, gets on plane quicker, can run slower speed and still stay on plane and fuel usage has declined so over all am happy with switch and I ran these new props all summer so I put them thru the test.
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