Eisboch wrote:
"Wayne.B" wrote in message
...
On Mon, 05 Nov 2007 17:07:41 -0500, HK wrote:

Absolutely, although 700 hp is about the norm for an offshore sportfish
boat of that size. The engines will be about $18,000 each through
Parker, I would guess. That would be the fully rigged price. $36,000 for
the pair. I wonder what a pair of new 350 hp diesels, fully rigged,
with transmissions, goes for these days? Let's say...$80,000+, or a
$44,000 difference. It's going to take a hell of a lot of diesel
efficiency to make that up!
Well, lets run the numbers just for the fun of it. Your price
estimate is in the ball park so let's figure out what the payback is
over 5 years or so. Assuming the diesels will return 50% of their
extra cost on resale, the number to meet is $22,000.

With the pair of big OBs the boat will burn about 50 gph, 25 gph with
diesels. Gas at the marina is about $4, diesel about $3, cost per
hour $200 gas, $75 diesel, $125 delta.

$22,000 divided by $125 is 176 hours. That is the break even point.
If you use the boat more than 176 hours you are money ahead on
operating costs alone. Factor in the reliability and longevity of
diesels and you are way ahead if you use the boat regularly.


My first thought was that by the time the Yamahas are due for their first
rebuild, the diesels will just about be nicely broken in.

Besides, at 35' a proper boat should have inboards. With fixed props. And
rudders.
A boaty-boat.

Eisboch

Eisboch



I tend to agree regarding the inboards, but...what if one of those
diesels blows a tranny? :}

I have a six year warranty on my new Yamaha. Ergo, I will have no repair
costs, just a couple of hundred a year on routine maintenance.