D4 260 : With or Without A Supercharger ?

[beejay190]

Chatting with friends who own a Prestige 32 on shafts - they tell me that their 2 x D4 260s do not have a supercharger ( or perhaps compressor
is the preferred technical term ).

My Nimbus 27 on an outdrive has a single D4 260 with a supercharger.

This seems a bit odd to us. Can anyone explain please ?

 

[Chris_d]

The outdrive version has a compressor but the inboard shaft version doesn't, perhaps those with shafts don't need the extra acceleration as the
compressor shuts down at higher revs.

 

[[2068]]

The difference is in the lower part of the rev range, where the outdrive version with the Kompressor produces a lot more torque below 2500rpm.
Above 2500rpm the curves are pretty much the same.

Maybe the idea of rocketship acceleration on a flybridge, where everyone up top tumbles off the back was thought not to be needed.

 

[AdeOlly]

Maybe the idea of rocketship acceleration on a flybridge, where everyone up top tumbles off the back was thought not to be needed.

Though that would make a really good boat fail video.