Horse power

[Waterman]

just looked at a GREAT 1989 v20 yesterday boat was in excellent shape and even ran great but it had a 140 hp johnson on it and was very slow could barely get it to plane off at full speed at 5500rpms at a cruise 4000rpms boat only got to about 18mph I ve heard you guys say a 150hp was minium but does 10hp make that much of a difference? and what hp should i be lookin for on the next one?......... really hated to let that one go

[Seacrets]

Something ain't right. Way too slow. Prop, water in hull, trim, motor height for starters.

[willy]

What Seacrets said, I had a 140 Johnson on my previous V and saw 35 fully loaded. Something is very wrong there

[THEFERMANATOR]

NYMACK66 has a 140 on his V and has much better numbers than those. You may want to check and see if somebody put a V-6 lower unit on it. The different gear ratio will kill the V-4's performance. And that 140 is propshaft rated and is every bit as strong as many of the older 150's that many run on there V's.

[reelapeelin]

Go take another look...SEVERAL members here run 140s and get good numbers...agree it's wrong prop or something...if ya like the boat, go find out whassamatter :head:

[shicks007]

I had a 1985 140 Evinrude on my 76' and it was a very good match.

[turbinedoctor]

I have a 90 hp that does better then those numbers, I would check to make sure you have the right prop. I'm running a 13.25 x 17 and get 27 to 29 MPH at 4600 rpm's

Turbo

[Waterman]

tough to get back there and research, boat is 150 miles away