I have 04' 225hpdi. Running a 25T1 15 1/4" diameter. (I think that's the diameter) Right now WOT 5800-5900 rpm 68.5. Water temp is hot. Looking at trying a Mercury Tempest Plus 26 pitch 16" diameter. Any of you tried this setup. Wondering if the 26 would do me better on top end?
Thanks