Prop info

[nickmo]

2001 SeaRay 210 Bowrider, 2008 5.0 liter Mercruiser TKS 2 bbl. carbed motor, Alpa 1 Gen 2 drive. Current prop is Power Tech SS 14 1/2x21 3 blade.

At WOT Tach reads 4400 rpm. Speed 42 MPH.

Bottom is fairly clean 2 people 1/2 tank of gas and minimal gear.

Does it sound like I'm over propped?

Suggestions?

 

[alldodge]

Assuming this is a carb motor

Maybe just a tad, 4400 isn't that bad, recommended is 4400-4800. Serial number 0L012052 - 0M599999

Or if your motor serial number is above 0M600000 then your WOT would be 4400-5000

So going to a 19 pitch should be fine, and more so if you run the boat a bit heavier at times and IF (the big if) your Tachometer is accurate

 

[nickmo]

I believe serial # is 1A329525. Don't know if tach is accurate.

 

[Silvertip]

Remember that when changing props, two supposedly identical props from two different manufacturers may and likely will perform differently. Do your research carefully and look for test results.

 

[alldodge]

I believe serial # is 1A329525. Don't know if tach is accurate.

The serial number is for a MPI motor not a TKS and WOT would be 4600-5000

 

[NHGuy]

My brother has that exact boat with an EFI 5.0 and it does almost 60. Have your raised the trim to get max speed?

 

[nickmo]

Raised trim till it cavitates. Not sure what's going on with the serial #, but my motor is carbed. Speed at WOT is 42 by GPS and the tach reads 4400. Might be time for some new plugs and wires too.