Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: 1981 18 Outrage Repower - 2016 Evinrude ETEC 150 HO

Posted by ClawFishing on 06/24/16 - 4:48 AM
#1

Just wanted to share some information for anyone who is repowering an older Outrage. I was between Yamaha and Evinrude and went Evinrude for two reasons. First, there is still a 89 lb weight difference and secondly the Yamaha XA and newer XB 150's do not have fly by wire throttle. So I went with a Evinrude 150 HO. I know guys have put 175's and even 200's but I did not want to exceed the maximum manufacturer HP.

For prop the mechanic went with a Rebel TBX with 19" pitch, not sure of diameter. The boat is going to be in saltwater and I was not really thrilled with putting on a bass boat prop such as the Raker. I want this boat to be versatile.

While I don't have fuel rates I can share speeds and can do further testing if anyone is interested.

Boat was tested with three grown men and about 1/4 tank of gas.

Planning speed was 13 mph
3,000 rpm approximately 30 mph
4,000 rpm approximately 40 mph
5,200 rpm produced a top speed of 48 mph. When I tried to raise the engine to get a couple more mph I started porpoising and lost a little speed.

I'll try to hit the 50 mph mark again with one person, I'm sure if I got more aggressive with the prop we could achieve it. It also had bottom paint on it.

I've only taken it out for an engine test run in freshwater, more information to follow once I get it in the slip.