jonsm114
Active Member
I think you are correct on the engines...mine are 340 MPIs, first year for them I think. 1996. The 380s also feature closed cooling. Later boats have westerbeak gen sets as I think the mercruiser units were out of production by then.
Sweet spot on my boat is 32-33 hundred at 20-21MPH....with supplied 20X21 3 blade props. Moving up to 4 blade Veem props in a week or two. Looking for idle maneuvering improvements and mid range RPM/Speed. 4400 is WOT and I am never there..
Got to WOT this week....4200+ with stock props, one dinged. I think with some trim adjustments could have gotten to 4400....but I know now I am very close. discovered on exam that I have velvet transmissions not Hurth like the sea ray people told me. Apparently my build sheet at Sea Ray is incorrect.....the sage continues...