SSM #5 drive intall
08-21-2013, 05:51 PM
#22
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Has anyone ever ran a 28 ' magnum style hull with a SSM#5 drive on a singe engine making big HP ? If so where do I start with the prop? The engine is a 540 ci BBC W/twin turbos running 10-15 lbs of boost. The prop shaft centerline to bottom of keel is 1 1/2" the boat is setup with K-Plane tabs and full hydraulic steering. Boat weighs in at 4,500 lbs and the engine is in the 1,100 hp range. drive ratio is 1.34 engine RPM is 5,800-6,000 with rev limit at 6,500 I have discovered that the props for this drive can get rather pricey so I'd like to see if anyone has a good idea of where to start. I'm going to try a merc 5 blade cleaver 16% rake 18" dia 31 pitch just to see what it does. Any impute here would be great thanks
For Bill's 30' Checkmate with the Twin Turbo 1,500 hp the 3 blade prop Runs the best.
Also as I said in the earlier post, lots and lots of testing,.....the drive kept getting lower
and lower and lower.
12" Stellings Extension Box
#6 Drive DrySump / LH Rotation
Bullet is about 4.5” below the bottom of the boat
1:24 Ratio
16.5” Dia.
28” Pitch
08-22-2013, 07:25 PM
#23
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Hey guys sorry been out of town but I read what you guys said here and I really would like to get together with you and pick your brains......
I will be out on the bay fri afternoon testing and if all looks good I will be out sat and run the fun run.
if testing doesn't go well I will be riding shotgun in my buddies 33' cougar so one way or the other I will be there.
as for the bullet mine is 1.5 below the keel now but I can add spacers to shim it lower. I'm already to install an extension box this winter too.
I will be out on the bay fri afternoon testing and if all looks good I will be out sat and run the fun run.
if testing doesn't go well I will be riding shotgun in my buddies 33' cougar so one way or the other I will be there.
as for the bullet mine is 1.5 below the keel now but I can add spacers to shim it lower. I'm already to install an extension box this winter too.
08-22-2013, 07:40 PM
#26
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Ok I picked up a 28x17 4 blade and a 31x163/4 4 blade I'm still looking for a 3 blade
I have a 1.34 ratio so I'm thinking the 28-31 pitch range will be a good starting point and I know the dia can be cut down
I have a 1.34 ratio so I'm thinking the 28-31 pitch range will be a good starting point and I know the dia can be cut down
08-23-2013, 08:40 AM
#27
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There are allot of things that are not normal about this prop to perform the way it does.
Dennis sorted it all out.
http://bblades.com/dennis-cavanaugh-tribute/
Brett Anderson paid close attention to this prop when designed and now has all the specs on it.
Brett has also re-tuned it a time or two over the seasons
09-11-2013, 02:32 PM
#28
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I remember it like yesterday. 1998. Dennis had a picture of that prop on his wall in his office.
We have done numerous similar builds over the years. Most have been 4 blade versions.
Thanks cougarman
Brett
We have done numerous similar builds over the years. Most have been 4 blade versions.
Thanks cougarman
Brett
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
09-27-2013, 01:53 PM
#29
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ive got a 29 pitch 17" 4 blade, your more than welcome to try, ive got a 28 ft cat with a #5, 930 horse dealing with the same issue, im down by cadillac so not ot far from ya,
