alfie
New member
Can anyone help with fuel consumption figures for Mercruiser Alpha 1. Engine is 260 HP petrol GM 350ci V8. Any info greatly appreciated.
Cruising Range
- Thread starter alfie
- Start date
kimhollamby
Active member
For 260hp petrol four-stroke work on something in the region of maximum consumption 18 imp gallons (83 litres) per hour at wide open throttle if propped properly and developing full power. What happens at lower speeds will depend on hull, weight and so on but cruising speeds typically half to two-thirds that amount. V8s tend to be thirsty motors, so I doubt you'll get much change out of this.
For fuel consumption rules of thumb see 'Any one with a Day Angler 21' a few threads below this one.
Associate Publisher ybw.com websites kim_hollamby@ipcmedia.com
For fuel consumption rules of thumb see 'Any one with a Day Angler 21' a few threads below this one.
Associate Publisher ybw.com websites kim_hollamby@ipcmedia.com
D
Deleted User YDKXO
Guest
Once had a Searay 268 with one of those in and I used to reckon on 1.5-2.0 nautical miles per gallon at planing speed. Lovely motor but depressing watching the fuel guage
ArthurWood
New member
Think yourself lucky, Mike; I have 2 x Merc 454s and together they do 1.7US gal(1.4 Imp)/nm at cruise. Yes, gal/mile.
longjohnsilver
Well-known member
Not fair
At least over there gas is cheaper than water, not liquid gold as sold here!
At least over there gas is cheaper than water, not liquid gold as sold here!
ArthurWood
New member
Re: True
especially that bottled stuff.
especially that bottled stuff.
BarryD
New member
Hi Alfie - last year we managed about 17gph on a 260HP Mercruiser 5.7 mated to an alpha one outdrive. This was a lot of slam-bang stuff and tides / wind rubbish that brough the cruise down to 17 t o18kts so with a better riding boat (or better conditions) I'd hope to be nearer 15gph at 20kts.
For the moment I'm assuming that my engine will be burning go-juice at the rate of a gallon a mile on the plane and about 2/3rd pottering elsewhere. I hope to be pleasently suprised but the only one that is likely to be is the owner of the fuel barge!
Barry D
For the moment I'm assuming that my engine will be burning go-juice at the rate of a gallon a mile on the plane and about 2/3rd pottering elsewhere. I hope to be pleasently suprised but the only one that is likely to be is the owner of the fuel barge!
Barry D