Bracket shape

[wattaway2]

Had an interesting conversation withe a buddy that just redid a 21 Mako about flat bottom vs V bottom brackets. My 23 has a flat bottom Stainless marine bracket and his is a custom V bracket. He noted that he gets a lot of water spray off his bracket where as my flat bottom has none any one else notice Any peculiarities in the two designs? Wonder if the flat bottom allows the motor to be raised higher vs the V type would have to recheck but I think I’m about 5 3/4” up from the keel.

[JohnC]

I don't believe there is usually any bracket in the water when your on plane so my guess is that the hull features/angle of attack would be the driving factor there. Something that isn't touching the water should not be causing spray. Just my $0.02.

[wattaway2]

Would agree in the most part as when he is on plane it is greatly reduced but still there until he is really flying 38 mph or higher before the transom wash clears the pod. Starting to wonder if the flat bottom is acting like a bit of a 2nd pad

[workinpr0gress]

Do the corners of your bracket almost touch the trailing edge of the running surface of the hull?

[wattaway2]

Yes pretty much. I picked up a used double engine bracket for the extra flotation then got with Stainless marine about the install . They gave me measurements that allowed for some latitude in height. I installed at there lowest for max flotation . In hind site might have raised it 1”-1 1/2 as my motor is raised up as far as I can but works well and don’t think I’d raise it any higher. Interesting the top bolt spread from the two engines was only 1/16-1/8” off the width needed for the single so we slightly elongated them ,welded the other hole and redrilled for the bottom holes.Then had to cut access holes in the two plates in the bracket to reach the bolts— hardest damn aluminum I’ve ever cut ! Would have thought it was stainless steel!

[Ed]

The v bottom brackets give slightly more buoyancy due to more displacement below water line. They should have no spray at all as the lowest point in the water is the keel. Only spray should be from trim tabs or transducer.

[strick]

No spray should be coming off the bracket if mounted properly..as noted it should be out of the water when on plane...so either the bracket is mounted too low or the motor is too low and the spray is coming from the anti cavitation plate...my guess

strick

[wattaway2]

Would tend to agree with your assessment Stric. He has it mounted really low - noe the chances of getting him to move it up………..

[workinpr0gress]

It could be mounted to low for the shape and width of the bracket because someone was trying get as much submerged volume out of the chamber as possible. In my mind the bracket chamber is the wrong shape for a twin engine bracket on that hull . The corner of the chamber should not meet the edge of the running surface. There shouldn’t be any spray when up on plane.

[Capt Chuck]

It appears via the picture that the bracket would cause extreme " Squatting" on a hole shot coupled with flat surface running plane. I had one of the original Potter Brackets I purchased personally from Bill . It's V bottom in alignment with the dead rise kept the stern in line with the running surface of the main hull See the pictures.
I would have too ride this hull to ensure performance
before purchase