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fuel consumption on 2002 22 cruiser w 100 HP yamaha

 
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John Nousaine



Joined: 12 May 2019
Posts: 3
City/Region: SUPERIOR
State or Province: WI
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: pulled the pin
PostPosted: Tue May 14, 2019 6:54 pm    Post subject: fuel consumption on 2002 22 cruiser w 100 HP yamaha Reply with quote

just bought a 2002 22' CRUISER w a 100 HP Yamaha and a 9.9 kicker, wondering what kind of range I can get w 46 gallons of fuel. I was told there was a chart here or on the c-dory site but I can;t find anything. any ideas on how I can ball park economy?
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colbysmith



Joined: 02 Oct 2011
Posts: 2559
City/Region: Madison
State or Province: WI
C-Dory Year: 2007
C-Dory Model: 22 Cruiser
Vessel Name: Midnight Flyer
Photos: Midnight Flyer
PostPosted: Tue May 14, 2019 7:33 pm    Post subject: Reply with quote

I have a 22 Cruiser with the Mercury 115 HP 4 stroke EFI. On Plane, I get about 2.9mpg-3.1mpg. At hull speed (5 mph), about 6mpg. Colby
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thataway



Joined: 02 Nov 2003
Posts: 16663
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Tue May 14, 2019 7:59 pm    Post subject: Reply with quote

A lot depends on how you run the boat, and load you have. Colby's numbers seem a little low, on mpg. There have been several performance reviews such as Boat Test.com. These have also been used for the factory brochures and web sites in the past. However these are optimistic, since it usually a new boat, no bottom paint, no water, two persons aboard, and only partial fuel load. Also most of the fuel flow studies are with 2 stroke 70 or 4 stroke 90 hp.

The current brochure gives up to 250 mile range. That would have to be a light boat, and some displacement speed. Figure that you only probably have 22 to 24 gallons usable in each tank. Then add in a 10% factor for "safety". Assume 4 miles per gallon (may be closer to 3.5?)..Lets say a respectable 4 miles per gallon, and 44 gallons usable. That would give 176 mile range less 10%, or about 160 miles. There have been times on long trips, where I have dropped down to displacement speed where you can get over 5 miles per gallon. That would give you about 200 mile range.

This is why I have had fuel flow meters on my C Dorys. Most will give MPG and amount used. They can be quite accurate when calibrated.

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Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
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CaptMac



Joined: 01 Mar 2005
Posts: 165
City/Region: Amelia Island
State or Province: FL
C-Dory Year: 2009
C-Dory Model: 19 Angler
Vessel Name: Blue Moon
Photos: Blue Manatee
PostPosted: Tue May 14, 2019 8:27 pm    Post subject: fuel consumption 22 cruiser Reply with quote

You should average about 3.5 - 4 mpg depending on weight in boat, speed, prop pitch, hydrofoil and/or trim tabs.

Here's a chart from a similar thread:


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ssobol



Joined: 27 Oct 2012
Posts: 1647
City/Region: Leesburg
State or Province: VA
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
PostPosted: Tue May 14, 2019 9:54 pm    Post subject: Reply with quote

With my Honda BF90D I plan on 3 smpg at cruising speed. The actual mileage is a bit more than that, but by planning for 3 mpg, a reserve gets built in.

Boat loading makes a difference. This is not just weight, but distribution. Having a lot of tab out to get the ride right will cut the mileage (and top speed) a noticeable amount.

The Boat Test numbers posted are for a minimally loaded boat and are optimistic compared to my boat.
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C-Val



Joined: 15 Sep 2012
Posts: 233
City/Region: White Rock
State or Province: BC
C-Dory Year: 1988
C-Dory Model: 22 Angler
Vessel Name: Seaduced
Photos: C-Val
PostPosted: Tue May 14, 2019 10:10 pm    Post subject: Reply with quote

This does not help you very much but up here in Canada mine works out to 1 1 litre per 1 nautical mile

Very easy for my brain to calculate - 20 nm to gulf islands = 20 litre jug!

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Sea Wolf



Joined: 01 Nov 2003
Posts: 8542
City/Region: Redding
State or Province: CA
C-Dory Year: 1987
C-Dory Model: 22 Cruiser
Vessel Name: Sea Wolf
Photos: Sea Wolf
PostPosted: Wed May 15, 2019 4:57 am    Post subject: Reply with quote

C-Val wrote:
This does not help you very much but up here in Canada mine works out to 1 1 litre per 1 nautical mile

Very easy for my brain to calculate - 20 nm to gulf islands = 20 litre jug!


So:

How would 1 liter per nautical mile compare with 1 statue mile per quart?

Simplification: 1 liter per nautical mile equals (~) 1 gallon per 4 statue miles, or

= 3.5 nautical miles per gallon. (Full Circle)

As usual, your mileage may vary! Laughing

Joe. Teeth Thumbs Up

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"Most of my money I spent on boats and women. The rest I squandered'. " -Annonymous
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jennykatz



Joined: 15 Dec 2003
Posts: 1549
City/Region: naples
State or Province: FL
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: Jennykatz
Photos: Jennykatz
PostPosted: Wed May 15, 2019 7:46 am    Post subject: Mpg Reply with quote

We have the cc-23 venture with a 115 ct Mercury At cruise 3500 rpm (16mph)we get over 4mpg at 4000 rpm (20mph) about 3.8 or so and the best is at 1500rpm (6mph)and 6mpg In 3 years of running we average out to 3gallons per 1 hour of engine use The venture is about 800lb more then the cd 22.

BTW we had aCD22 with a 90 Hp Suzuki and we would get similar return

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John Nousaine



Joined: 12 May 2019
Posts: 3
City/Region: SUPERIOR
State or Province: WI
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: pulled the pin
PostPosted: Wed May 15, 2019 8:41 am    Post subject: Reply with quote

thanks everyone. it'll be nice to go to Isle Royal and not have to haul gas cans and sweat it out
:D
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colbysmith



Joined: 02 Oct 2011
Posts: 2559
City/Region: Madison
State or Province: WI
C-Dory Year: 2007
C-Dory Model: 22 Cruiser
Vessel Name: Midnight Flyer
Photos: Midnight Flyer
PostPosted: Wed May 15, 2019 6:52 pm    Post subject: Reply with quote

Just remember, there are only places to get fuel in Isle Royale. I've been up there the last two years with a small group of C-Brats, and if I leave Grand Portage full, I can get around the island to Rock Harbor and top off, then make it back. (Wendigo Ranger Station is the only other place to get fuel on the Island.) Colby
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John Nousaine



Joined: 12 May 2019
Posts: 3
City/Region: SUPERIOR
State or Province: WI
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: pulled the pin
PostPosted: Thu May 16, 2019 7:28 am    Post subject: Reply with quote

yup very familiar with the Isle Royale.. fish and or dive it every year. look for "pulled the pin" when your up there. maybe we'll connect
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colbysmith



Joined: 02 Oct 2011
Posts: 2559
City/Region: Madison
State or Province: WI
C-Dory Year: 2007
C-Dory Model: 22 Cruiser
Vessel Name: Midnight Flyer
Photos: Midnight Flyer
PostPosted: Thu May 16, 2019 7:48 pm    Post subject: Reply with quote

John, if you are around there in July, I believe Tom on C-Otter and some others will be up there soon after the 4th. He loves to fish, and is also a scuba diver. I'll miss out this year, but hope to be back the following year. Colby
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cgypsy



Joined: 02 Mar 2015
Posts: 147
City/Region: Vancouver Island
State or Province: BC
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: C Gypsy
Photos: C Gypsy
PostPosted: Thu May 16, 2019 11:57 pm    Post subject: Reply with quote

Quote:
in Canada mine works out to 1 1 litre per 1 nautical mile


That is exactly how I calculate it and my tanks hold 85 litres each. I'm not sure how much is usable.

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