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Author Topic:   Mercury Sea Pro 25 for Sport 11
rbruce posted 05-03-2004 10:41 PM ET (US)   Profile for rbruce   Send Email to rbruce  
I found a used 1998 Mercury Sea Pro 25 short shaft with alternator and rectifier (so I can operate the lights of my boat), to replace my recently overheated 1969 Chrysler 20 HP. On the last leg of the trip in the channels of the Atlantic Region of Costa Rica, my Chrysler made the Sport 11 feel like a speed boat, but on the return it overheated after 40 minutes of 3/4 gas, perhaps due to my inexperience.

I still have the project of finding out what overheated my beloved Chrysler 20 HP but don't be misslead by the age of the motor as I had brought it from 25 years of oblivion in our garage and that my father only used for less than 10 hours, but I can use your pieces of advise to cope with this new temptation.

Although the maximum HP for my Sport 11 is 20 HP I would like to consider this upgrade for the value of it. This SeaPro motor with tiller is priced at $1,100 as is. One blade of the propeller is scratched, the Skeg is in the aluminum and there is corrosion in the hood lock. I long for electric start as my Chrysler takes so hard to start (not this one), that is plus the electric start kit $300, plus controls $300, that adds up to $1,700.

A brand new 2005 Mercury Classic 25 electric start (30 cc less displacement than the SeaPro 25) with controls costs $2,500 including 13% sales tax. That is less than $1,000 difference and comes with a 1 year warranty...but I only use my boat 4 or 6 times during the year. Also spending this much money will make the boat very difficult to sell as I have already sunk $5,000 into the boat including the restoration, bimini-top, teak-wood console, teleflex, lights, decals, trailer and spare parts for my 1969 Chrysler.

Has any of you used a 25 HP in a Sport 11? We don't have the USCG operating in Costa Rica, nor there is much concern about boaters, only to tax our boats and trailers, but will the boat swing around with these extra 5 HP? Does $1,000 difference makes sense?



ryanwhaler posted 05-04-2004 10:16 PM ET (US)     Profile for ryanwhaler  Send Email to ryanwhaler     
I have never used a 25hp on my eleven, but Iím sure the hull will handle the extra power.

The only difference between the 20 and 25 may be the .carb size, if so the weight may be the same as the 20. I've seen eleven's powered with motors as large as 35 hp.

Any advise here?

ryanwhaler posted 05-04-2004 10:17 PM ET (US)     Profile for ryanwhaler  Send Email to ryanwhaler     

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