1974 Noresman DC Crestliner Re-Engine Project

[coastalcruiser]

Re: 1974 Noresman DC Crestliner Re-Engine Project

see how the bottom of the hull lines up with the drive?
lets see a photo of yours
i'm sure your cavitation is because the prop is catching air.

 

[reavesga]

Re: 1974 Noresman DC Crestliner Re-Engine Project

Ok. I will get a photo from the side. I put a straight edge across the bottom and use a tape to measure. I am fairly certain the drive is higher than prefered

On the good side of the equation, I mounted the Solas Amita 4 Blade 14x19 on her and headed to the lake today. She performed very well. Very flat deck angle. I am sure that the drive being too high is affecting how much up trim I can use. However I was able to trim the bow up a little and get 34 knots out of her which is faster than she has ever gone. The old OMC drive with the same engine would only run about 28 knots wide open. Entered prop data at
http://forums.iboats.com/showthread.php?t=447642

 

[reavesga]

Re: 1974 Noresman DC Crestliner Re-Engine Project



Side shot showing the drive to hull relationship



Tried to take this one looking right down the ant-cavitation plate.