37 knots trimmed in so it's stable and it should do around the same the new Yam 70 4 stroke...[/QUOTE]
If you can get through/ handle the chine walk theres anothe 5 knots there but thats in flat conditions.
I agree that the best engine is a Yammie 70 BETOL 2 Stroke which is what I have on mine
We have an F70 on another boat and I am mightily impressed with it
its very frugal as much torgue as the 2 stroe in fact we are swinging a big prop on it and still cant hit WOT as and only 10 kg heavier so I should think there would be 40 knots in it.
But you could cruise at 25 to 30 knots for next to nothing
Im a reasonably When I have the time I want to put the F70 on my 4.7 and find out exactly what it can do before brittle bone disease sets in cos its going to be Lairy
My first proper Rib was a noo 4.7 with y 70 BETOL and I did hundred of hours on it and loved every second of it. Go for it
Here it comes again, I don't stand a chance
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