Im fixing to swap out Jackplates on my 1998 Tr18 and was checking to see what yalls PTP was on these model boats. There use to be a setup page on here that had this info but I guess it's gone. I do have a new 150 Pro xs 4 stroke but not sure if the ptp is different than a 2 stroke.
Recommend you start at about 2.75” ptp.
No personal experience, but most posts I have read here on BBC indicate that 200 & 250 hp 4S motors need about 2” less pitch than the equivalent 2S.
Not sure about a 4S 150 pro xs….they have a 2.08:1 gearcase. I believe the 150 opti has a 1.87:1 gearcase.
Lightning 6
2007 TR-196DC
It will depend alot on your boat setup. I have a TR-186 with a new 150 Pro XS 4 stroke and mine runs best at 3.75in below pad but I run multiple graphs up front as well as a heavy Ultrex trolling motor with all lithium batteries in the back. Every since I did the graph, lithium upgrades if I run it aany higher than that the prop will blow out and it gets really squirrelly and feels like the back end is on ice at WOT. Back when I was running AGM batteries in the back I ran the PTP higher...
2005 Triton TR-186
2024 Mercury Pro XS 150
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