Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: New prop for Merc 40 EFI

Posted by dougrohlman on 11/17/11 - 4:26 PM
#1

Hi. I want to improve he hole shot on my 2008 130 with a 14 pitch 3 blade Merc prop. Anybody try a 4 blade Spitfire 13 pitch?

Posted by Tom W Clark on 11/18/11 - 8:09 AM
#2

No, I have not tried a 13" Spitfire propeller, the latest aluminum four blade from Mercury nor do I know anybody who has.

If you want to improve the performance of your boat I recommend buying a well fit stainless steel propeller and, perhaps, raising the motor on the transom a bolt hole or two.

Posted by Phil T on 11/18/11 - 12:02 PM
#3

Doug -

Propeller pitch size across brands are not identical due to the blade design differences.

Another way to say it is a 14" 3 blade from Mercury may not perform the same (better or worse) than Stilletto or Spitfire etc.

Before investing $2-300 for a new prop, you should tell us the weight of passengers, gear, fuel on board.

At what height is the motor? How many empty holes are ther above the top set of bolts?