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Dec 30th, 2023
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 Re: Mercury 250 Pro XS 4 Stroke...on my 2018 Ranger Z521c first look
[Re: Ken A.]
#12772766
05/29/18 11:48 AM
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Joined: Jul 2006
Posts: 3,605
James Biggs
TFF Team Angler
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TFF Team Angler
Joined: Jul 2006
Posts: 3,605 |
Check out Mercury Prop Slip calculate (just google that term it will pull up) and see what going from say 7-10% prop slip difference makes on speed. If you have a fixed jack plate, getting motor height is really important as well, and changes over the seasons. Per Ken A. to get absolute minimum prop slip you want your prop shaft spinning at an angle as parallel to water line as possible (Ken correct me if Im saying this wrong). Therefore you need to get motor height where you can get lift to get boat up, but keep shaft as level as possible. That is correct Ken. The problem with bassboats is once we get them loaded down we have to start trimming the motor higher to get the prop to lift the hull free of the water to reduce drag. As you change the angle of the propshaft you begin to lose efficiency. Unfortunately the fastest hulls are not necessarily the best fishing platforms. Ken A, Give me the speed!!! 
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Re: Mercury 250 Pro XS 4 Stroke...on my 2018 Ranger Z521c first look
[Re: KenTx1962]
#12800875
06/21/18 08:53 PM
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Joined: Mar 2012
Posts: 11,008
BigDozer66
TFF Guru
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TFF Guru
Joined: Mar 2012
Posts: 11,008 |
Very nice Ken! 
2016 Ranger RT188 Charcoal Metallic Dual Console 2017 Yamaha 115 VMAX SHO (VF115LA) SS Prop Minn Kota Ultrex i-Pilot Link 45" 80 lb. Humminbird Helix 10 Mega SI BalZout Console Humminbird Helix 10 Mega SI BBT Bow Mount Trick Step ![[Linked Image]](http://img.photobucket.com/albums/v373/BigDozer66/Boating/Ranger%20Boats%2050%20Years_zpsqe1kjywq.jpg)
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