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Konrad/Speedmaster IIIA conversion

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Old 12-12-2007, 07:05 PM
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Looks very straight forward. Kurt, thanks for the info. I now have 3" of spacer, so I think another inch might help getting on plane. The 5 blade Maximus prop is a Bravo prop? Smaller diamater and more pitch? I will take a good hard look @ Miami Boat Show.
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Old 12-12-2007, 07:50 PM
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Very nice! Looks to be as clean and simple as the other Konrad packages. From our experience I've found the Konrad kits to include everything and have explicit instructions for retro fit. This is no exception.
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Old 12-12-2007, 07:51 PM
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[QUOTE=f311fr1;2369745]Looks very straight forward. Kurt, thanks for the info. I now have 3" of spacer, so I think another inch might help getting on plane. The 5 blade Maximus prop is a Bravo prop? Smaller diamater and more pitch? I will take a good hard look @ Miami Boat Show.]

Yes, the Maximus is for a Bravo shaft. The Konrad unit runs a 1.25" prop shaft with an XR style hub kit.

See you in Miami!

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Old 12-12-2007, 08:08 PM
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Quote:
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The Konrad/SSMIII conversion drive is 2" higher than the III
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Kurt
How does this affect performance?
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Old 12-12-2007, 08:18 PM
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Kurt
How does this affect performance?
Ed
Running box stock 4 blade Powertech 28's, we gained almost 2 mph while reducing prop slip from 22% to 15%
Definetely more to be had with a labbed for the application prop.

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Old 12-12-2007, 08:39 PM
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f311fr1,
The Maximus Prop can be had in a 15 5/8 diameter.
I'm hoping Santa brings a pair this year since I didn't get them last year:-(.
I know they will work well with my Konrad conversion that Doller Offshore did on our boat two winters ago.
Hope this helps.

Last edited by NJSONIC; 12-12-2007 at 08:42 PM.
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Old 12-12-2007, 11:10 PM
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Thanks all.
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Old 12-13-2007, 08:21 AM
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Default steering wing plates and finished project

This boat started out with the propshaft 5.5" below the bottom of the boat. It is now 1.7" shorter, running 26 Hydromotive p5X's 74 MPH at 5400 RPM's.
The boat has great response getting on plane, and I will post the Stats with the Maximus as soon as we test. We estimate gaining another few MPH!
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Konrad/Speedmaster IIIA conversion-oso4.jpg   Konrad/Speedmaster IIIA conversion-oso5.jpg   Konrad/Speedmaster IIIA conversion-oso6.jpg  

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Old 12-13-2007, 10:33 AM
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Quote:
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What are the Konrads rated for with all the HD and HP parts?
In terms of torque and horsepower.
Looks like a nice conversion. What Comanche3Six asks is a good question. What are the strength (HP & Torque) differences between the Konrad 540 drive that replaces the Merc TRS and the Konrad drive that replaces the Merc SSMIII or are the Konrad drives rated the same between the two?
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Old 12-13-2007, 10:54 AM
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Kaama when I blow up the center picture above it says 540 on the drive so I assume that they are the same. I do know that Konrad does make a upgraded gear set that I did not opt for when I purchased mine but I think that they did use in these drives. I do not recall the upgrade increasing the rated HP/Torque but I could be wrong.
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