omc 25hp

[Jfarrelly]

Where did you get, how'd you make the nose cone. Looks good

[MWhite]

Where did you get, how'd you make the nose cone. Looks good

The 20,25,30 35 or all 31.8 cubic in motors, the carb get bigger as u go up. We use to river race down here where we live with those motors, the guys that run them tryed lots of things to make them run better and ruined a few blocks because of porting on them,, if u ported on them it would kill it, a stock motor run better, so what they did was they cleaned up the reed block off a 35 and cleaned up the casting on the blocks, and put on a set of stacks, made by bob snider called hustler pipes, made just for that motor, and it made a big different with lots of gain. just saying.

[champ20B]

Some of you guys are talking about porting and mods and only getting 78+KPH? That is only about 48 or more MPH.....

I was able to achieve this with my 1997 25hp Johnson simply by using the bigger (35) carb, and a 17" pitch standard design aluminum prop. ( I bought the aluminum 15" pitch from the dealer then had it stripped, polished and pitched to 17" without any cup.) The boat I ran it on was a flat bottom mini cracker-box style runabout I thrown together that was 11' length and 48" wide at the bottom and weighed about 140+ pounds. I was 140lbs back then as well. The rig would just hit 51mph on a GPS with no trouble, and get there quick too.