I am just starting a complete restoration of an 1989 OUTRAGE 18. I already bought a Yamaha F150. I suspect that [the boat] will be fully operational by April 2017.
The reports I have read in regard to putting the 150-HP four-stroke-power-cycle engine on [a classic Boston Whaler OUTRAGE 18 boat] are [for a top boat speed of] 42 to 45-MPH. I couldn't find anything on [accelerating from a standing start at maximum throttle], but I did read about porpoising. I already bought a plate to jack up the height a bit, as [porpoising] is caused by the increased weight; I plan on moving battery forward to the console; it belongs there anyway.
Will keep you posted on progress.
[Separated from another thread on a re-power with an F150 but on a completely different model of Boston Whaler boat]
1989 OUTRAGE 18, Yamaha F150
Re: 1989 OUTRAGE 18, Yamaha F150
With the range of engine mounting height available using the standard BIA engine mount, you can raise the engine three-holes-up or 2.25-inches higher than mounting in the lowest position. It would be unusual to be able to run the engine much higher than this.
Typically a jack plate also gives some set back, which also helps to permit higher engine mounting heights. What is the set-back distance of the jack plate you bought?
Typically a jack plate also gives some set back, which also helps to permit higher engine mounting heights. What is the set-back distance of the jack plate you bought?
Re: 1989 OUTRAGE 18, Yamaha F150
FLDC001--I have a 1984 18 Outrage with a Honda BF150, and I have been running the Honda since 2004. Depending on how much weight you have [aboard the boat], I believe [the maximum boat speed should be] maybe 47 or 48-MPH. I have used a GPS and have registered 48-MPH--seemed like I was flying.
[My 1984 Boston Whaler OUTRAGE 18 does] not have a jack plate; the [static trim of the boat is within] about one inch--more or less--of where it [was] before re-power. The boat batteries are moved forward. The engine is mounted in [described a mounting position that was ambiguous--please use the method of describing engine mounting height in terms of the number of units of "holes" or 0.75-inch the engine mounting height has been raised from the lowest position].
I have not experienced any proposing or concerns about acceleration. Enjoy your boat--Joe
[My 1984 Boston Whaler OUTRAGE 18 does] not have a jack plate; the [static trim of the boat is within] about one inch--more or less--of where it [was] before re-power. The boat batteries are moved forward. The engine is mounted in [described a mounting position that was ambiguous--please use the method of describing engine mounting height in terms of the number of units of "holes" or 0.75-inch the engine mounting height has been raised from the lowest position].
I have not experienced any proposing or concerns about acceleration. Enjoy your boat--Joe
Re: 1989 OUTRAGE 18, Yamaha F150
Jackplates and setback increase the propensity for a boat to porpoise.
You should mount the motor without the jack plate and test the performance.
You should mount the motor without the jack plate and test the performance.
1992 Outrage 17
2019 E-TEC 90
2018 LoadRite 18280096VT
Member since 2003
2019 E-TEC 90
2018 LoadRite 18280096VT
Member since 2003