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-   -   B-Max (https://www.offshoreonly.com/forums/drives-lower-units/215670-b-max.html)

Mr Gadgets 09-15-2009 08:09 AM

I like to hear that John! How fast are you going?

Panther 09-15-2009 08:27 AM


Originally Posted by Duffer (Post 2952807)
Dean Now offers a 1.5 Ratio. I Ordered a new B - Max to replace my 1.5 ratio XR with a B-Max 1.5 Ratio and have no Speed Loss.:evilb:

Cool! I considered swapping to the 1.5 to get my speed back.. Maybe in due time! I had a 100% trouble free boating season this year and it was an abnormally rough summer on the open seas!

What kind of power are you running?

Please keep me posted!

Duffer 09-15-2009 09:12 AM


Originally Posted by Panther (Post 2952880)
Cool! I considered swapping to the 1.5 to get my speed back.. Maybe in due time! I had a 100% trouble free boating season this year and it was an abnormally rough summer on the open seas!

What kind of power are you running?

Please keep me posted!

I'm running 565 C.I. Merlin Tall Deck with M-3 Procharger - 900 H.P. - 26' Awesome Cat - 32 Pitch Maximus prop - 1.5 B-Max - 105 M.P.H. @ 5800 R.P.M. - Cruise @ 3000 R.P.M. 55 M.P.H.:drink:

Strip Poker 388 09-16-2009 06:08 PM

5 Attachment(s)

Originally Posted by dennis r (Post 2940159)
The xr was a standered and the b-max is there crescent lower

My lowers was the worst casting I have ever seen in anything,there wavy, grinding dips,some I cant get out there so deep,one had nose off ,there thick,skegs thick.

I have 2 lowers thats on the boat they were the same casting, the spare looks like they spent alittle more time on it.

I got the boat with the B max with a stock merc foot,the boat was a little off on speed,around 1-2mph,Thin i put the blower motors in it and had a base line, change to the crescent lowers,I sanded/cleaned them up some. I really didn't see much speed dif.I did notice it was not hook up as good at the stock bravo foot,no big deal,I'm babying them getting on plan anyway.I went up 6 prop sizes,now Ive cut the sh!t out of them,hours and hours of it,I just hate I cant get the porosity out of it,I keep grinding and more turn up,Ive thinned them a bunch,Dean said I couldn't grind too much,I think I can see oil thru those holes:drink:

Ive been busy polishing with out a boat all summer

looks at the thickness diff, with the torpedo being bigger and longer,more resistance

the Drive sits back 5/8's. so that puts the prop alittle deeper in the water.

hope this helps
Rob:drink:

Strip Poker 388 09-16-2009 06:17 PM

5 Attachment(s)
Ck out the water holes,must of been a heavy duty grinder.

Strip Poker 388 09-16-2009 07:57 PM

2 Attachment(s)
Hey Frank we got to do yours next:evilb::evilb: It has to slow it down:rolleyes::D


800 grit

Panther 09-17-2009 09:04 AM


Originally Posted by Strip Poker 388 (Post 2954240)
Hey Frank we got to do yours next:evilb::evilb: It has to slow it down:rolleyes::D


800 grit

The polishing actually slows ya down bro!! I remember at the marina they detailed a #6 boat and polished the lowers... the owner freaked out!!!:party-smiley-004:

I got an idea on the porosity you're seeing, West System 420 or 423... Never tried it but the 423 is an aluminum powder and the 423 is graphite...

Strip Poker 388 09-17-2009 12:56 PM


Originally Posted by Panther (Post 2954607)
The polishing actually slows ya down bro!! I remember at the marina they detailed a #6 boat and polished the lowers... the owner freaked out!!!:party-smiley-004:

I got an idea on the porosity you're seeing, West System 420 or 423... Never tried it but the 423 is an aluminum powder and the 423 is graphite...

yea I know, but atlest it will look good before the first ride,ital be some cool pictures,Frank I bet the bottom will hurt me also,its real slick.

I wonder if it will stay on? how do ya apply It?

Panther 09-17-2009 01:21 PM


Originally Posted by Strip Poker 388 (Post 2954781)
I wonder if it will stay on? how do ya apply It?

You mix it in with the west system epoxy resin.

Strip Poker 388 09-17-2009 04:09 PM


Originally Posted by Panther (Post 2954812)
You mix it in with the west system epoxy resin.



kinda like filler pudy,ya spread it on fill the holes and sand back smooth,I wonder if polishing will pull it out of the hole?


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