how are the sport /9.5 etc detuned?

twisty · Post by **twisty** » 03 May 2009 23:11

How are these bikes detuned to give less power than say the corsaro?

corsaro chris · Post by **corsaro chris** » 05 May 2009 10:38

The 9.5 engine and its platform mates (Sport, Scrambler) have the same bore / stroke as the Corsaro range (despite what it says in the MCN "All 2009 Bikes" in last weeks supplement!). However, the heads are very different with smaller valves and spacing. There was a very good picture in the 2008 MRC calender of the piston crown cut outs...

The non-Corsaros also have simpler front suspension, which is noticably softer - this can lead to some unpleasant see-sawing when riding two up and using the front brake hard. They also lack the oil cooler.

CC

twisty · Post by **twisty** » 05 May 2009 17:41

So ecu aside the heads on a corsaro could be swapped over and an oil cooler /exhaust fitted and you would end up with a standard corsaro engine?

V-Fun · Post by **V-Fun** » 06 May 2009 08:13

Twisty,
I don't know if the ECU mapping is different between the bikes?
Should be easy to find out.

And maybe the gearing/sprocket sizes?

I suppose you wouldn't HAVE to have the Oil Cooler - Or at least initially while you splash-out on the new cylinder heads?!

Would be interested to know if you take this forward...

Regards
Stephen R

twisty · Post by **twisty** » 06 May 2009 11:18

I think the engine internals are the same apart from the heads, as all the specs seem to read identical, same bore/stroke/intake size etc.
Internal gear ratios also seem to be the same.

I don't see the factory using drastically different components as it would increase their cost base.
The radiator on the morinis looks as if it is a ducati monster s4 item which seems to indicate a lot of the parts are probably ducati e.g rectifier etc.
The pencil coils are ducati items.

corsaro chris · Post by **corsaro chris** » 06 May 2009 11:27

This from the article on the clubs' visit to Bologna in 2007 - there are still a few spaces left for this years visit in early October...

"Along the line we are able to examine individual items in detail. Sander and David pick up cylinder liners and pistons; the latter displaying flat crowns with valve cut outs and residual skirts providing little more than ring grounds and support for gudgeon pins. For those of us more used to 62mm pistons the bore is colossal at 107mm, and a photo of one is sure to make it into next yearâ€™s calendar. Although most parts are sourced in Italy, Morini use other component suppliers where required â€“ the pistons are from America, the oil cooler on the Corsaro from Austria (as used for KTM), flywheel and some similar components from Japan."

Ducati and Ducati Electronica are different companies (as I am sure you know)...

CC

Sander · Post by **Sander** » 06 May 2009 18:25

My pictures from the factory visit are still online.

This is the first picture of the visit.

twisty · Post by **twisty** » 06 May 2009 19:44

like a kid in a toy shop looking at the factory pics

brilliant

V-Fun · Post by **V-Fun** » 06 May 2009 20:53

Hey Sander
The photos are awesome! and I'm going to have a good look at them all tomorrow...Well done!

I'm like a kid looking at the ultimate toy shop!!

Thanks for the link.

Regards
Stephen R