25 hp merc 4 stroke

[lilrezs]

could anyone tell me how the spitfire prop would work on the lund fury 1400 with a 25 hp merc four stroke thanks

 

[Yegboats]

spitfire works great on the 1400 fury. 25s on the 1400 Fury usually come with the 3 blade 9.75x9.50 People will often upgrade their props to the spitfire 4blade 8m8026650 9.3 x 9.5
When we put 30s on the 1400 fury we always put on the 11p spitfire instead of the 3 blade.

 

[Sea Rider]

To swap 3 blade props for 4 blades properly. Need to tach OB on a wot run as usually loaded on flat calm no wind water cond and check if at least running middle to max wot rpm factory range. You could be lugging or over reving OB which is bad, but that you don't know...

Happy Boating

 

[lilrezs]

thanks for the replies i was looking for test runs with that set up and cant seem to find any

 

[Sea Rider]

It's impossible to find that kind of test, boat and OB could be same, but sea cond, OB transom height, trim and weight makes all the difference. Without a tach that OB it's alreafy dead, that's if wanting to get all those 25 HP out of that OB.

Happy Boating

 

[lilrezs]

decided to go to either 30 hp merc or yamaha only thing is the yamaha doesnt have tilt and trim with tiller model