Whats quicker?

[Csail]

A 16' dory with a merc 90hp or a normal 13' speedboat with a 60hp..?

 

[ccscott49]

Probably depends on what prop is fitted???

 

[Channel Ribs]

Dories are quick and take over-sized engines well, I think that would get my bet.

 

[landlockedpirate]

Difficult to say without more info. Both should do about 40kts, but will depend on weight and wether the engines have power trim.

And as mentioned the choice of prop can give a 3 or 4 kt variation.

 

[JasB]

a kwik-fit fitter?