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Meisndj
Joined: 11 Jul 2011
Posts: 9
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 Posted: Sun Aug 28, 2011 6:22 pm Post subject: 240 sport jet fuel economy |
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| What is the fuel economy expected in a 240 sport jet running in an 18' outlaw bobcat or Alicraft? What is the performance of this engine like? What kind of difference does the high skew impeller make? I am researching this as I am looking to buy a jet boat, but have never owned one before. Thanks for any advise...
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sturgeonhound
Joined: 17 Jul 2010
Posts: 12
Location: North of Edmonton/Calgary
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| Posted: Sun Aug 28, 2011 8:14 pm Post subject: 240 SJ fuel consumption |
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I have a 2006 240 SJ in an 18 foot harbercraft whitewater. Dry boat weight is about 1808 lbs. Here is my data for fuel consumption tested at a lake about 1000 ft above sea level. I used my GPS for speed and my smartcraft for the RPM and fuel consumption. Hope this helps.
SH
Motor RPM MPH Gallons Per hour (US) MPG (US)
3870 26.4 7.32 3.61
4000 28.5 7.93 3.60
4200 30.5 9.09 3.36
4650 37.2 13.26 2.81
5600 47 22.24 2.11
5780 49.4 23.30 2.12
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sturgeonhound
Joined: 17 Jul 2010
Posts: 12
Location: North of Edmonton/Calgary
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| Posted: Sun Aug 28, 2011 8:15 pm Post subject: fuel |
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| I forgot to mention this was with a SS 4 blade high skew impellor and wear ring.
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Medicine Man
Joined: 02 Dec 2010
Posts: 66
Location: Medicine River, AB
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| Posted: Sun Aug 28, 2011 8:45 pm Post subject: |
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| I have a 2002 240 sport jet with high scew , I find if I keep it under 4800 rpm it is pretty descent, mileage goes all to "sheet" running it up over 5000.
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Rivernut
Joined: 16 Aug 2009
Posts: 34
Location: Massachusetts
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| Posted: Sun Aug 28, 2011 8:54 pm Post subject: |
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My carbed SBC 350 in a 20' 6 degree Eagle does a little worse (3 MPG) at cruise and a little better (2.5) at WOT with two guys and full livewell and full fuel tank.
_________________
Real boats don't have propellers!
-- Rivernut
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Medicine Man
Joined: 02 Dec 2010
Posts: 66
Location: Medicine River, AB
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| Posted: Tue Sep 13, 2011 10:25 pm Post subject: 240 SJ |
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On last Saturday at the Brazue Boat Rally I did 86 miles on 100 litre's of fuel in a 16 ft 20 degree Eagle Sport 240 SJ. 2 guys in boat, plus 2 coolers, full tank of gas (35 gallon) and a 5 gallon jerry can full in boat, Average RPM was 4800. It's the yellow boat in picture. So it's pretty good if you keep your foot out of it. It has new style big screw impellor.
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the goat
Joined: 14 Oct 2011
Posts: 13
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| Posted: Thu Jan 19, 2012 8:15 am Post subject: |
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| wow i have a 1978 marathion with a 502 and i get 5.2 mpg at 3400 rpm at 32.0 mph what do you say about that
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blen
Joined: 31 Oct 2006
Posts: 53
Location: Vancouver
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| Posted: Thu Jan 19, 2012 6:54 pm Post subject: |
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| Probably tops out at 90 and runs in a inch and a half too!
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blen
Joined: 31 Oct 2006
Posts: 53
Location: Vancouver
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| Posted: Thu Jan 19, 2012 6:54 pm Post subject: |
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| Probably tops out at 90 and runs in a inch and a half too!
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