Prop Question

rock doc

Petty Officer 1st Class
Joined
May 29, 2011
Messages
241
I just installed a set of SLT10's on my 21 foot cuddy (2500Ibs dry) with a 4.3l merc. On the centre hole setting on the tabs I am getting too much stern lift, dropping my top speed by 4 mph and peak rpms by approx 400-500. I am going to try the outer holes and see if that is enough to correct the trim. They definitely work though!

I also have a turning point 19 pitch 4 bladed prop with a top speed of 40 mph.

Wondering if I should go to 3 blade now?
 
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rock doc

Petty Officer 1st Class
Joined
May 29, 2011
Messages
241
Sorry - I used the search function and I thought they were talking about Bennett Self Leveling tabs. My mistake....just trying to get the boat dialed back in after installing the tabs.
 
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