Originally Posted by stype
can you tell me please what boat do you have and what is Your fuel consumption?
on suzuki website they say that displacement gives you more option when choosing the prop!they said: "no replacement for displacement"
We have a Ribcraft 5.3 running whatever prop it came in the box with.
Limited running so far, but on the first tank of fuel, measured brim full to brim full and using GPS data, we did 8.0mpg (29.4 litres/100km). Can't give you a litres/hr figure...haven't enough data as yet to be accurate and meaningful. Bear in mind this was low engine hours running...gentle warm up, some low speed (8mph) up and down an Estuary, couple of hours cruising at 3000-4000rpm (20-25mph), one short burst of full throttle (40mph+).
We're away in the boat all next week...I'll post updated fuel figures after then.
No replacement for displacement is true, in a sense, but all things are relative to technology. An American muscle car of the 1960's with a big 7 litre V8 can now be easily outperformed by some European family hatchbacks of 2 litres or less that use less fuel in the process