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  #11  
Old 01-19-2011, 01:47 AM
eggsuckindog eggsuckindog is offline
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Join Date: Mar 2003
Location: Tampa
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Default Re: Repower could add too much weight?

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Thanks guys, plenty of ideas and advice to chew on. the weight is my biggest factor, not to jeopardise the ride. And will now consider putting a 115 on. Speed is not my main goal, but a quick plane is important. Fuel economy is obviously a big factor. I dont want to get into adding a bracket right now although the benefits are tempting. Just dont think it is absolutely necessary on the 20'. If anyone knows of a 115-150 good running motor give me a holler.
Big difference from 115 to 150 - 4cyl to 6 - once you get to 6 they all weigh the same 150 to 200. The 130 Etec in new maybe a very good option if inclined to going new, but I think it weighs in the same as a 200 EFI Merc at 400.
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  #12  
Old 01-19-2011, 10:05 PM
trooper2232 trooper2232 is offline
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Default Re: Repower could add too much weight?

In 17 years I Have had a 150 Black Max Merc 435 lbs. A 140 Suzuki 2 stroke 380 lbs. A 1998 150 Evinrude Intruder and now have a 2004 Johnson 175 380 lbs on my 1973 20' SeaCraft. I moved the batteries to the front of the console with the Suzuki. It planed at about half throttle compared to FULL throttle with the merc. These boats are Very sensative to weight as you know.

Performance with alum props:
150 Merc Black Max 45 MPH
140 Suzuli 2 stroke 41 MPH (smooth and efficient)
150 Evinrude Intruder 52 MPH (hot rod bass boat motor)MY FAV
175 BRP JOHNSON 46MPH (Gas Hog, but otherwise good)

I know I'll run out of those light 60 degree Evinrude/Johnson motors someday...

I hope this helps, R&D (blown motors) cost a lot of $$$
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  #13  
Old 01-19-2011, 10:07 PM
trooper2232 trooper2232 is offline
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Default Re: Repower could add too much weight?

Don't forget that these boats were made for STRAIGHT SIX Mercurys......about 275 lbs.
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