HP ratings

thurps

Chief Petty Officer
Joined
Jan 14, 2007
Messages
538
What year did OMC start rating there engine HP at the power heads?
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: HP ratings

1985 is generally considered the changeover date, Thurps, but I think some models changed before that and some after.
 

seahorse5

Rear Admiral
Joined
Jan 24, 2002
Messages
4,698
Re: HP ratings

By 1986, all the outboard manufacturers agreed to rate the hp at the propshaft using industry standard methods so that every company could duplicate each test.
 
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