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-   -   2005 new 2.5 merc efi o/b (https://www.offshoreonly.com/forums/general-boating-discussion/228004-2005-new-2-5-merc-efi-o-b.html)

firebaseball 04-08-2010 07:06 PM

2005 new 2.5 merc efi o/b
 
any one know fuel burn on a 30 ft twin sport boat

firebaseball 04-08-2010 07:07 PM

with this motor set up twin 2,5 merc outboard racing motors

Ryan Beckley 04-08-2010 07:37 PM

1-2 gallons per mile - per motor at WOT

crazyfast 04-09-2010 09:15 AM

Fire...u need to really look at my PowerPlay

Kanookstr 04-09-2010 02:04 PM

I own twin 2004 2.5 efi (280 HP each) on a 4500 lbs boat and I can tell you that they use a lot more gas than my 32' sunsation 7000lbs += with twin 496 HO (425 HP each)

stirling 04-10-2010 10:33 AM

fuel burn
 
Around 28 gallon/hour full throttle

Toffen 04-13-2010 11:56 AM

Hi!

I have two Merc 2.5 EFI SS 280 hp engines with PCU's which helps a lot on the fuel consumption. I use approx. 75 litre / 20 gallon per hour running 4,000 rpms at 52 mph. My boat is 25 feet offshore hull with weight of approx. 3,000 lbs. When I ran a single Promax 300 3 litre the fuel consumption was 55 litre / 15 gallon an hour at the same speed and rpm. So I am pleased with the two Merc's, although Brucato PCU is vital for these numbers.

Cheeers and good luck, Toffen


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