I have a 15.5' starcraft with a 70 hp chrysler O/B. I get around 2.75
mpg. Is this typical? Thanks.

Yes, but no one buys a boat for fuel economy.


There are a few of us who use our boats for several hundred hours a year who do
pay attention to economy.

About typical. Really depends on how you run the engine. If you keep it
under 3500 you will get better. Over 4000 and you start to drink. Over
4500 and you are inhaling.

--
Tony
My boats and autos - http://t.thomas.home.mchsi.com



"Dan Thompson" wrote in message
news
I have a 15.5' starcraft with a 70 hp chrysler O/B. I get around 2.75
mpg. Is this typical? Thanks.

About typical. Really depends on how you run the engine. If you keep it
under 3500 you will get better. Over 4000 and you start to drink. Over
4500 and you are inhaling.

--
Tony
My boats and autos - http://t.thomas.home.mchsi.com



"Dan Thompson" wrote in message
news
I have a 15.5' starcraft with a 70 hp chrysler O/B. I get around 2.75
mpg. Is this typical? Thanks.

I can't imagine anyone worrying about it with an outboard. A sterndrive
would pay for itself in just a few hundred hours.

--
Steve (here to have fun) Barker


=======================
Remove the not dot from my address to abuse my email box
"Gfretwell" wrote in message
...
Yes, but no one buys a boat for fuel economy.


There are a few of us who use our boats for several hundred hours a year
who do
pay attention to economy.

Not true. 2 stroke and 4 stroke work the same way. Throttle plate and
timing are both adjusted as you increase and decrease throttle (assuming it
is a carb). EFI adjusts air thru the plate and timing and fuel.

As for the fuel savings, little difference between a 4 stroke efi and a new
2 stroke efi (not talking DFI which is even better).

--
Tony
my boats and autos - http://t.thomas.home.mchsi.com


"Gfretwell" wrote in message
...
I can't imagine anyone worrying about it with an outboard.

I guess you don't think about economy on an outboard until you actually
see
some. The difference was striking when I went from an old 2 stroke to a 4
stroke. Part of the savings is in the ability to run smoothly at slower
speeds
(manatee mandated) but I see a significant savings overall.
Running at slow speed my 60hp merc doesn't seem to use any fuel at all. My
old
2 stroke seemed to use as much at 700-800RPM as it did at 2300. Not
surprising
if you look at the respective throttle openings tho.
2 strokes slow down by retarding the timing, not throttling the carb.

Not true. 2 stroke and 4 stroke work the same way.

I am not sure what kind of 2 stroke you have but my 75 didn't start opening the
throttle until the advance had moved quite a way.

On Thu, 14 Aug 2003 17:36:00 -0400, "Woodchuck"
wrote:

Yes, but no one buys a boat for fuel economy.

Except those of us who are sailors. Well, for that and other reasons.
But fuel economy is a big one.

Steve