Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   Drives and Lower Units (https://www.offshoreonly.com/forums/drives-lower-units-217/)
-   -   Bravo or SSM III ?? only options (https://www.offshoreonly.com/forums/drives-lower-units/273195-bravo-ssm-iii-only-options.html)

Unlimited jd 03-27-2012 12:35 PM

Ideally I'd love to get rid of the 3s and put 5s on it but can't find a buyer for the 3s, it's not so much that Im trying to gain speed just reliability. I don't want to be rebuilding drives all the time. These baby blower motors combined with the weight of the boat is enough to destroy bravos and figured since the 3s are sitting here in my way I'll put them to use next year

Unlimited jd 03-27-2012 12:37 PM


Originally Posted by A.O. Razor (Post 3649821)
If you are at 18" with stock length Bravos, an x of 20.7/16" will put you at the same height. I would a least go with 23½"-24". You can always use a 3" spacer and get down to or close to current prop depth if needed, but 23½" will suface your IIIs and that is what they were meant to do. With the big cleavers, you may even be able to go higher. Next question is, do you have room under your hatch?

Plenty of room, has big blower scoops on the hatch

302Sport 03-27-2012 04:04 PM

to be honest i wish i had a hull to throw those on that was already set-up for arnesons

schmiddy 03-27-2012 04:16 PM

What do you want for the III's? They'll sell.....you just have to lower your price waaaay below what they're worth.....seems like that's the only way to sell something these days. It sucks.

Unlimited jd 03-27-2012 04:23 PM

Had them in swap shop drives and gimbles with trans for $8500 obo

45exc 03-27-2012 09:20 PM

X dimension
 

Originally Posted by A.O. Razor (Post 3649734)
Go for the SSM#3s and a high x-dim. Much stronger than a bravo and they run surface props. An interesting thing could be to see if you could in any way swap yor IIIs for Vs. The lower drive x-dim makes for easier and better installation. If you are running biggish power, your bravos are going through hel! on that boat and are on borrowed time anyway.

How to measure an x dimension?

A.O. Razor 03-28-2012 06:33 PM


Originally Posted by 45exc (Post 3650608)
How to measure an x dimension?

Measure perpendicular from the crank shaft or even more precise, input shaft centeline to the bottom of the boat. Keel or pad if it's a single and just the bottm if a twin. When I measure x, I use a straight edge on the bottom and then measure from the point where the input shaft centerline exits the transom. You don't want to get your transom angle involved. If you have boxes, you'll need to measure from the box and not the transom. Due to the transom angle on some boats, boxes will change the x, since the transom angle is not always the same as the box angle. Ie. a straight IMCO box with a 13* angle on a 15* transom will lower the x slightly and vice versa.

A.O. Razor 03-28-2012 06:52 PM

1 Attachment(s)
Just did a little drawing viewed from the side of a boat, it very rough, but gives a pretty good idea about how to measure. The red thing is a straight edge and the blue line, will it goes without saying. The circeled spots is where to measure.

Don't ever hire me as a graphic designer:D

Unlimited jd 03-30-2012 12:46 PM

looks like were going to see how this season goes, try to sell the bravo parts at the end of the year, rig it for the 3's and use the bravo money to replace the 174 blowers with 250's

dereknkathy 03-30-2012 08:43 PM

x-dim on twins. is it to lowest point of keel? or bottom directly below drive. note, the swivel up-down where trim indicators go is center of crank-upper driveshaft for measuring purposes.


All times are GMT -5. The time now is 03:55 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.