Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

Aluminum brackets are lighter than fiberglass. I have an armstrong bracket with the wide body and a 175 hp Mercury Optimax on the back, which in my unqualified opinion is the most weight I'd put back there. Your ocean runner should be lighter.

Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

Thanks for all that info y'all!. I had hoped to get a better idea of the pros of a glass bracket. I have a week off- held up by slow concrete contractor- so I plan on starting a mold for a glass bracket. I have digested some of the posts like "Here we go again" by Strick but I have questions about the over all dimensions of an effective design: over all width? length from existing transom? height at motor mount from V to top of mount? I'm sure I'll have more ?'s once I get going. Thanks in advance!

Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

30" setback is standard so the motor gets full tilt. One major pro of a glass bracket is it will not corrode and since you are designing and fabricating your own you can build it with the max floatation possible. If you build it right it will be far superior to any aluminum you can buy.:D

Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

I concur sir.
That OMC is @365#`s dry. Nice n light, and a great match for that hull.

Enjoy,
GFS

Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

i have an armstrong came with the boat, i'd go hermco all the way myself. pretty sure you get flotation not due to weight but space within and displacement (but others know).

if you can go 30" engine, its almost 3 feet back with a bracket and nicer to get motor up outta the wa-wa.

Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

You are correct, but when running, which is when weight REALLY comes into play, the floatation chamber does nothing.

To the OP regarding set-back, I'd go as short as is necessary to fully tilt your engine up. Since you're building your own, you have this option. Yes, 30" is standard but I bet you can get away with a 25-26" setback, maybe shorter. Not too big of a deal but every little bit helps.

I also think it looks more proportional with a shorter set-back.

Re: A bracket for 25\" 150hp on 20' CC- Pros & Cons
 

Thanks for that Zach & Hermco. I'm starting to lay out the mould now. I bought 5/8" MDF and 1/8" MDF to build the mould with. I'm a contractor and this is REAL challenging compared to my day job! A friend mentioned there is a ratio of setback length to bracket transom height. Any thoughts?.....I'll have pics soon to illustrate my layout process. Forgive my ignorance, but how do I up load pics on this site? Instant UBB code what? I've started a mock up out of card board for the mould parts. I hope all y'all bare with me on this...God knows if it was easy, every one would do it!