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Triton TR-18
I have a 1998 Triton TR-18 with Mercury 150. It came with a Trophy 25P. 6" manual jack plate. 58mph @ 5400 rpm. Problem: Boat is VERY slow to plane with 1 livrwell full. It also will not load on trailer without bogging down and cutting off. I just assumed for years that it must be too much prop. After talking with several people I bought steepest 23P. Same results with plane and bogging. Top end speed decreased to 54mph @ 5200 rpm. I was told that this motor needed to be running at 6000 rpm to reach its full potential. Any help with this would greatly be appreciated.
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Might want to verify that 6000 rpm. Check the setups forum for the proper prop to pad measurement. Might try changing the vent plugs if you have a Tempest Plus.
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Sounds like you have motor issues. You should be able to spin that 23 to 5800 easily, and that boat should run 60-62 if set up right.