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  25 foot hulls with twin 150s -- what fuel burn/GPH numbers do you get?

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Author Topic:   25 foot hulls with twin 150s -- what fuel burn/GPH numbers do you get?
Morocco posted 02-11-2003 06:52 PM ET (US)   Profile for Morocco   Send Email to Morocco  
Since my starboard engine incident coincided with the winter weather (such as it is here in Socal) I haven't been able to take a long enough trip to get good numbers on my 25' Revenge with twin 87 Johnson 150s.

Walt S., LHG, anyone else with a similar set up -- what numbers do you get running a set up like this? I'm more interested in being able to get general range/fuel burn per hour than speed.

Thanks in advance. I want to do a couple of Channel Islands/Catalina offshore trips this spring and summer and I wonder what the realistic range of this boat is. The previous owner is of no help.

lhg posted 02-11-2003 07:02 PM ET (US)     Profile for lhg    
I have no numbers for the 25 Revenge, nor OMC engines, but with my Outrage 25 I get the following:

With my previous 1989 Merc 200's, carburated, I got about 1.75miles/gallon, when conditions were reasonable. Lugging into a head sea was worse.

With my current 1997 Merc 200 EFI's, I get about 2.0 miles/gallon, same conditions.

For MPG at a given speed, I have found that HP ratings of the engines is less important than weight being pushed. I would not think the older OMC 150's would get any better mileage the my 1989 200's. For conservative calculations, I would use 1.5 mpg with your rig.

Morocco posted 02-11-2003 07:35 PM ET (US)     Profile for Morocco  Send Email to Morocco     
Thanks, Larry.
WhalerAce posted 02-11-2003 07:49 PM ET (US)     Profile for WhalerAce  Send Email to WhalerAce     
Morocco,

Ours was a 22 Outrage, but it had a huge Tower on it, so it was probably close to the weight and resistance of a Revenge. We had twin 120 Evinrudes (non CR). We got about 1.5 MPG, but figured about 1 MPG in estimating cruising range. Every so often conditions would worsen so that our mileage DID suffer, so it was nice to have the built-in reserve.

SSCH posted 02-11-2003 10:30 PM ET (US)     Profile for SSCH  Send Email to SSCH     
A little off topic but....

On my 25 Guardian with 200 HPDI Yamahas I get 2.2 mpg with full fuel (173 gal), a large and heavy T Top and two on board, in light chop, at 3400 RPM.

reelescape1 posted 02-12-2003 08:29 AM ET (US)     Profile for reelescape1  Send Email to reelescape1     
SSCH...that sounds like a nice boat, do you have any pictures??

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