What speed should I expect????????

K

kshelly

Petty Officer 2nd Class
Joined
Mar 9, 2004
Messages
124
I know speed doesn't necessarily indicate proper performance of your boat/motor combo, but generally, what speed should I expect to get in a 19' fiberglass bow rider with a 115 hp johnson O/B? I'm currently doing about 27MPH at 4900 RPM. That's with 1 adult, 2 children and basic equipment.
 
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,525
Re: What speed should I expect????????

You ain't doing Too Bad.......<br />RPMs Sounds a Little Low..........<br />You Might have a couple more left in it.......
 
K

kshelly

Petty Officer 2nd Class
Joined
Mar 9, 2004
Messages
124
Re: What speed should I expect????????

Yeah, I know I'm on the low end of recommended RPM. I went from a 19 pitch prop, to a 17 and now run a 15. Time for a 13???
 
Y

youngboater

Petty Officer 1st Class
Joined
Jan 31, 2004
Messages
247
Re: What speed should I expect????????

If it won't cost you anything why not go for it.<br />Just be careful and watch the tach. I run a 19incher on a 75 HP 17' aluminum and get about 35MPH (4,900 RPMs smack in the recommended range for me) Let us know what happens.
 
S

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
Re: What speed should I expect????????

I suspect that your motor is not up to snuff if you are only getting 4900 rpm with a 15" prop.
 
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