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Old 07 May 2011, 18:41   #1
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Maximum motorweight for Ribcraft 4.8 ?

Hello everybody,
does anybody know what's the maximum motorweight for that boat ?
Can't find that on the Ribcraft site, they only say 60 hp should be the maximum power on it.(I don't think so).
I have now 109kg at the transom, and I think it could have 15-20hp more with nearly the same weight at the stern. Is that possible with an older 2 stroke or not ?
Cheers
Eric
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Old 07 May 2011, 22:56   #2
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they only say 60 hp should be the maximum power on it.(I don't think so).
They build it. They know better than you.
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Old 08 May 2011, 02:27   #3
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im sure it was something like 160 or 165 max weight.
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Old 08 May 2011, 03:04   #4
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Suggest forgetting the guesswork and conjecture...and ask Ribcraft directly
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Old 08 May 2011, 05:23   #5
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They are rated to 60hp max, but Ribcraft have rigged some with 75hp E-tecs, as the weight of these motors is acceptable. As said earlier though, best to ask Ribcraft before fitting a motor above 60hp.
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Old 08 May 2011, 12:43   #6
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i had a suzook 70 f/s on mine and that came in at 160
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Old 08 May 2011, 15:30   #7
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Thanks,
with 160kg at the transom it might be a little bit sternheavy.

I would ask Ribcraft direcly, if the telephon call from Germany wouldn't be so expensive.

Thank you all.

Cheers
Eric
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Old 08 May 2011, 15:32   #8
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I would ask Ribcraft direcly, if the telephon call from Germany wouldn't be so expensive.
Far cheaper than buying the wrong motor
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Old 08 May 2011, 15:34   #9
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They build it. They know better than you.
I guess this recommention is made only to be on the sure side in the factory.
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Old 08 May 2011, 15:36   #10
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I guess this recommention is made only to be on the sure side in the factory.
Nope its all part of the CE plating process which is a EU legal requirement for all vessels built for the leisure market and over 2.6m LOA !!
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Old 08 May 2011, 15:38   #11
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Far cheaper than buying the wrong motor
To true! We have a customer who wanted his twin 60's replaced by a single ETCH 90 he supplied the motor, but is a SS Rib takes Long !!! expensive lesson for him !!!!
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Old 08 May 2011, 18:34   #12
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I know Ribcraft weren't keen on fitting the first generation Soozook DF60, due to its excessive weight, despite being within the hp limit of the RC4.8.
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Old 08 May 2011, 19:34   #13
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They are rated to 60hp max, but Ribcraft have rigged some with 75hp E-tecs, as the weight of these motors is acceptable. As said earlier though, best to ask Ribcraft before fitting a motor above 60hp.
And the insurance co...
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Old 09 May 2011, 01:23   #14
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mine was very stern happy, max weight for even balance that i would recommend is 135 tops
never mind what it will take!!
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Old 10 May 2011, 13:00   #15
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a few weeks ago there was another RC4.8 sold with an 75hp Mariner 2Stroke, i saw the selling photos and i wondered how heavy she looked at the stern.

That was why i did that question.

I mean 160 kg might be a little heavy, too.

Thank you all

Eric
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