1988 17 Montauk with 2011 Mercury 90 FOURSTROKE
Posted: Fri Aug 06, 2021 9:47 am
I have a 1988 Montauk 17 that has a 2011 Mercury 90 FOURSTROKE engine. The boat is very clean. The engine only has 250 hours. The hull floats with the [engine splash well] drains just at or above the water line with no one onboard. The engine is mounted one-hole-up. The current propeller is an aluminum 13.25 x17.
PERFORMANCE OBSERVATIONS
[The Mercury 90 FOURSTROKE engine at full-throttle can only accelerate to] 5,000-RPM.
The maximum boat is about 30-MPH.
EXPECTATIONS
I believe the boat speed should be higher, based on reading other reports.
QUESTIONS
[Survey question deleted. Please do ask for information in the form of a survey. If you are seeking particular information, just ask for that information--Moderator]
Q1: Should [the engine mounting height be increased to two-holes up] or higher?
Q2: Should the propeller pitch be decreased to 15-pitch from 17-pitch?
Thanks for any insight--Chris
PERFORMANCE OBSERVATIONS
[The Mercury 90 FOURSTROKE engine at full-throttle can only accelerate to] 5,000-RPM.
The maximum boat is about 30-MPH.
EXPECTATIONS
I believe the boat speed should be higher, based on reading other reports.
QUESTIONS
[Survey question deleted. Please do ask for information in the form of a survey. If you are seeking particular information, just ask for that information--Moderator]
Q1: Should [the engine mounting height be increased to two-holes up] or higher?
Q2: Should the propeller pitch be decreased to 15-pitch from 17-pitch?
Thanks for any insight--Chris