Suzuki factory prop to Merc Rev 4 results.

[a7ewizard]

This application is my '06 24 SS with a single Suzuki DF225.

I went from the stock 16x18.5, 3 blade SS prop to a Merc Rev 4. This is a 4 blade SS prop that is slightly smaller in diameter in a 21 inch pitch. I bought a Michigan Wheel hub kit to make this work.

The Zuke prop actually runs well. I wanted to try the Rev 4 with the hope/expectation of better cruise fuel economy and increased nose up when trimming the engine. While it is too soon to see any fuel economy increase (I don't have a meter and will have to compare fuel use vs hours vs GPS miles), I do think the nose trim has improved, and it has much better bite when whipping the kids around on the tube.

The numbers are very, very similiar along the RPM range. I lost a bit of top end speed (expected due to the drag increase of the 4 blade) and some RPM at WOT. Speed are in knots, similiar loading

 RPM                                                   Zuke                                            Rev4
3000                                                    12.7                                             13.2
3400                                                    17.5                                             18.5
3600                                                    19.6                                             20.2
4000                                                    24.0                                             24.0
4400                                                    27.3                                             27.9
4800                                                    30.0                                             30.8           
5000                                                                                                       32.2
5600 (WOT)                                          35.7
5400(WOT)                                                                                              35.3

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