I am fairly new to the MM world and have a few kwerstions. I had a 27 MB HD on a 15'6" Excel boat. I sold the motor once I did some research and bought a 35 GTR because the 27 HP just didn't do the trick.

I hunted this am with 3 guys (700 lbsish) a dog and all the gear including 6 dozen dekes. I know that's a lotta weight for that boat. I've had 3 guys in there before but today it would not get on plane and the highest I could get the RPMs were @ 3200-3300. It did ok in the mud but deep water it BLOWS. I was prolly topping out at @ 10 mph.

I took it out after I dropped the guys off and it ran like a scalded dog. I was thinking maybe the prop was damaged and that was the issue. By myself the RPMs would get to 3900-4000.

Any pointers/advice? Is the boat that much heavier than say a gt boat or is that just to much weight period?

Your hull probably has a lot to do with it I've had 6 guys plus hunting load so at least 1200lbs and still got on a plane in deep water I have a 35gtr on a 18:48

thats alot of weight did you try timming it up to gain rpms to try to gain speed did it seem like it was starving for fuel? might need to add a eletric fuel pump

Lose some weight or get a longer hull.

With a stock motor with that load in a good 18'boat you would see 24-26.

Nothing wrong with motor. Too much weight for that hull.

Yes

Been there... I could never carry a load with my Excel and 35GTR combo. I ditched the Excel and now am very happy.