CLB
Well-Known Member
If I was to run a small boat (circa 20ft) with a single 4 cylinder Volvo petrol AQ131/151/171/250/251, at displacement river speeds, so I am guessing probably around 1500rpm, what sort of mpg or gph could I expect?
Running a four cylinder Volvo petrol at river speeds - what sort of consumption?
- Thread starter CLB
- Start date
BruceK
Well-Known Member
IIRC I used to get about 0.7 litre nm with a mercruiser 3.0 carb version at displacement speed in a 19 foot boat
CLB
Well-Known Member
That's useful. Thanks Bruce.
If I work to 1nm per litre I should be safe then.
If I work to 1nm per litre I should be safe then.
oldgit
Well-Known Member
Used to run a VP 151 (175HP V6 ? ) in Princess 25 with single 280 T leg.
From memory the the fuel burn on non tidal was minuscule.
From memory the the fuel burn on non tidal was minuscule.
Medway Mudlark
Well-Known Member
At those revs around 0.75g/hr. AQ 130C/270 leg. 20 ft Draco, around 1200kg. We used to run at around 1600 rpm / 4.5 knots
CLB
Well-Known Member
Thats useful. That confirms that if I work to 1nm per litre it should allow plenty of safety margin.
CLB
Well-Known Member
The 151 is a 146hp four cylinder, but if you used minuscule fuel on a 175hp V6, I should use even less
Leighb
Well-Known Member
Just for interest I had a look at the log for our trip on the Norfolk Broads last year. The trip up the coast from the Orwell and into the Waveney used 202 litres for 61 miles, about 3L\mile, during the next 3 weeks we did 156 miles and used 181 L about 1.1 L/mile. This is with twin 6cyl Turbo diesels.
