665 inch BBC for LaveyCraft NuEra29 build
11-17-2016 | 12:17 PM
#132
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Joined: Jul 2011
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From: Ft. Worth TX
Yes with the Merc twin shafts for the current 6 and up. Cost is not cheap either. I understand the SC lower is not that strong either. If I recall I think the Merc 6 is rated up to 1100 hp and a full SCX what is 900 or 1000 hp ? I know its 900 hp max or 1000 hp max if I recall correctly for a full SCX.
11-17-2016 | 12:30 PM
#133
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Joined: Jul 2004
Posts: 11,332
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From: chicago
Yes with the Merc twin shafts for the current 6 and up. Cost is not cheap either. I understand the SC lower is not that strong either. If I recall I think the Merc 6 is rated up to 1100 hp and a full SCX what is 900 or 1000 hp ? I know its 900 hp max or 1000 hp max if I recall correctly for a full SCX.
I'm not to up to speed on the scx/sc lower combo as far as long term reliability with a torque engine package in a big single. It might hold up, my gut says probably not though.
900ft lb stump puller build, in a big single engine hull, prob gonna be tough on the gears. imco states MAXIMUM idle speed to be 800RPM for the scx. The drive holds 4.5 quarts of lube. A wet sump #6, held 20 quarts. A SSM V, held about 8 quarts, and an old 3A, about 10 quarts.
11-17-2016 | 01:24 PM
#136
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Joined: Apr 2015
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Yes with the Merc twin shafts for the current 6 and up. Cost is not cheap either. I understand the SC lower is not that strong either. If I recall I think the Merc 6 is rated up to 1100 hp and a full SCX what is 900 or 1000 hp ? I know its 900 hp max or 1000 hp max if I recall correctly for a full SCX.
Like the guy stated earlier a little too much fuel getting on plane and boom.
Why arent u looking at the ssm8?
Last edited by iliveonanisland; 11-17-2016 at 01:28 PM.
11-17-2016 | 01:30 PM
#137
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11-17-2016 | 01:36 PM
#138
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Joined: Oct 2013
Posts: 1,953
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From: rock Island wa
What about the x power drive? I know someone on here just bought a cat with those but haven't heard much. This boat is to be a trailblazer of sorts, so why not if starting from scratch.
Always easier helping others spend their money.
great build and thanks for sharing.
Always easier helping others spend their money.
great build and thanks for sharing.
Last edited by buck35; 11-17-2016 at 02:19 PM.
11-17-2016 | 02:03 PM
#139
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Joined: Dec 2004
Posts: 222
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From: Newbury Park Ca
I think someone was blowing smoke your way. The big benefit of a SSM 6, is having dual vertical shafts, with dual gearsets in the lower. Properly setup, each gear and shaft, has to withstand 50% of the torque load. Not 100%. Benefit? You can run smaller diameter gears, and a more efficient lower case. The uppers gears and shafts are plenty big to handle the power. Its a design thats been around for several decades now, and race proven. It was used in the SSM 3,4,5,6, and now 8. Mercury never had a cone clutched drive that successfully handled power that you will be making.
Personally, I think you'll be chunking those standard SC lower gears, especially if you run hard in anything other than flat water. Either way, awesome build, looking forward to the results.
Personally, I think you'll be chunking those standard SC lower gears, especially if you run hard in anything other than flat water. Either way, awesome build, looking forward to the results.
