2 questions. I’m adjusting my motor high prop 24p fury 2019 z21 with pro xs 4 stroke. What water pressure is at safe full trim on top end? I’m running 66 top speed right now. I have 2 talons that’s really only thing add weight. What should be top speed on boat?
RPMs need to be around 6k. I am running a 23p Fury and sometimes struggle to get 6k. But by myself I normally see 70-71. I'm about 3.5 inches below pad. Might need to ask the water pressure question in the merc forum I have a hard time believing you can get wp below 20 psi with the new gen lower unit.Originally Posted by Jasoncableman
Bryan McDonough
2023 Nitro Z21 XL
Nitro Team
2019 Z21 w ProXS 250- 12" Atlas JP- I switched from 23 Fury 3 blade to a 4 blade Bravo 1 24 P- 35 gallons of fuel, plus partner, also 2 10ft Power Poles, and heavy tourney load- by myself 71 mph at 6000rpm, with partner 69.5 mph and basically same rpm. The beauty of the Bravo is how well it carries a heavy load- even with livewells full, 40 gal fuel, top end only drops to 68.5-69.0. Holeshot and handling are the other big advantages- 0 chinewalk. My 23 P Fury is my backup.
JP setting at takeoff is 5 (heavier loads I will go deeper), after planing move to 8-9 which is about 2.75-3.00 in PTP - 6000 rpm target- trim out until rooster tail is about 3/4 height of top of engine cowling.
Thanks
I have a z 20 2019 with 4stroke 250 merc running a 26 p beovo 1 and running 72.9 - 73.1at 5850 to 5900 rpm motor height at 2 3/4 in below pad best I can tell don't have atlas yet so hole shot is slow but not real bad always run with full tank to get a consistent run....have 2 10 foot talons that adds weight.
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