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f 25 hardtop

Posted: Mon Mar 01, 2010 4:48 pm
by cclark75006
Hello Rodman:
I just bought a 1974 Trojan F25 with Hardtop. Last Saturday, first time to the water, she ran well (but slow) At 2000 rpm, GPS said we were doing 10 to 11 mph. Full trottle she would only do 15 mph at around 2500 rpm. She ran smooth at 2000 rpm, just slow. Is this normal for this boat with 225 HP (Merc ford)
I dont know what prop is on her, I will need to pull her out of the water to tell, but does anyone know what size prop should be on the boat?
Any information would be greatly appreciated.

Curtis

Re: f 25 hardtop

Posted: Mon Mar 01, 2010 5:00 pm
by Paul - SW Ontario
cclark75006 wrote:Hello Rodman:
I just bought a 1974 Trojan F25 with Hardtop. Last Saturday, first time to the water, she ran well (but slow) At 2000 rpm, GPS said we were doing 10 to 11 mph. Full trottle she would only do 15 mph at around 2500 rpm. She ran smooth at 2000 rpm, just slow. Is this normal for this boat with 225 HP (Merc ford)
I dont know what prop is on her, I will need to pull her out of the water to tell, but does anyone know what size prop should be on the boat?
Any information would be greatly appreciated.

Curtis
Should have a 14" x 10 pitch - cupped, or close to.
Should get around 16-17 mph at 2500rpm...23mph at 3000rpm or so.
Not sure what WOT should give you rpm wise, with the Ford.

Posted: Mon Mar 01, 2010 5:28 pm
by prowlersfish
14x10

Posted: Mon Mar 01, 2010 5:45 pm
by Rodman
I have someone coming to look at it for me tomorrow. A friend of mine that is a old motor head.