Offshoreonly.com - Bravo to surface drives

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- Drives and Lower Units (https://www.offshoreonly.com/forums/drives-lower-units-217/)

- - Bravo to surface drives (https://www.offshoreonly.com/forums/drives-lower-units/357458-bravo-surface-drives.html)

green lightning

11-02-2018 03:25 PM

Quote:

Originally Posted by Moorings4004 (Post 4657172)

I am in the process of converting from Bravos to Arnesons also. I am going through the same problem with finding props to test before I purchase. How were you able to solve your problem of finding props to test ?

What I did was found some cheaper 4 blade props to get idea on the pitch and then got set of 5 blades to help it get on plan

Tinkerer

11-02-2018 07:42 PM

Raised the engine 1 1/8 th inch and added -3 IMCO shorties.
Getting on plane with 4 blade Bravo props was impossible without a little Tinkering.
No problems now at all.
I am running a 26 Daytona that only weighs 4500 lbs.

Moorings4004

11-03-2018 07:13 AM

Thanks that sounds like a smart way to go about it. I am trying to get this done over the next few weeks before I put the boat away. I appreciate the suggestion.

splashandburn

11-03-2018 08:13 AM

Quote:

Originally Posted by Moorings4004 (Post 4657172)

what boat did you do the conversion in?

Padraig

11-03-2018 08:18 AM

There is a thread in the Velocity section where a Velocity 390 is be converted from XR to Arneson.

Padraig

kjm5125

11-03-2018 08:40 AM

Quote:

Originally Posted by Moorings4004 (Post 4657172)

I thought BBlades use to have a testing program. I did not use them and what worked best were 18x31-18. My first set of Herrings are my back up.

green lightning

11-03-2018 09:23 AM

Quote:

Originally Posted by kjm5125 (Post 4657284)

I thought BBlades use to have a testing program. I did not use them and what worked best were 18x31-18. My first set of Herrings are my back up.

When I was looking for test props he did not have many #6 props with a dia, larger than 17 the only one with a large selection was cobra and he wanted $9500 to get in the program .

splashandburn

11-03-2018 10:11 AM

I spoke with Bblades and they do not have anything available in the 18" diameter props for testing.

Moorings4004

11-03-2018 01:12 PM

I converted a Formula 400ss.

UrbanDisturbance38

11-05-2018 07:17 AM

Quote:

Originally Posted by splashandburn (Post 4656969)

Twin engine V bottom set up on a heavy hull.

I converted my 1994 38 foot Cigarette Top Gun with ASD7M drives, which is over 13000lbs with gas. If your boat weighs as much as mine, don't waste your money on 4 blades. I have Hering 5 blade, 18 Diameter, 18 Rake, 28 Pitch Props.with twin 610hp supercharged engines. They work pretty good. I am under pitched a little bit. I would love to try some 6 blades, but there are none to be found. You will most likely have to do what I did, which is purchase props and hope you get it right.

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