2000 M900ie mods - HC pistons, big bore, or swap for 1100ds motor?

[greenmonster]

MTS 1100 do not fit:
http://www.ducatimonsterforum.org/index.php?topic=71891.msg1327649#msg1327649

[koko64]

Hot up that 900

[koko64]

I think he will use a SSS conversion.

[M900GP]

Yes, ironically I'd mated up an MTS SSS to my M900 motor several years ago.  I just purchased an '08 1100DS motor with the hot Hyper race cams. I'll swap that in for the 900 motor.  So the SSS will simply connect back up to what it was originally paired with.

Just took delivery of the motor today.  Super clean and low miles.  Reading up on the dry clutch conversion.  Looking at powder coating the engine side casings as I've got a lighter flywheel to try anyway.  Also will powder coat the valve covers. 

Any recommendations on head/valve work on this motor, given the Hyper cams, or is it pretty good stock? 

[Duck-Stew]

Given that you have a LOT of conversion to do...  I'd hit up the heads later.  Remember:  You're going from a 900i.e. to an 1100 w/cams.  It's already a big improvement.

As far as the flywheel goes:  The only crankshaft I've liked with the aluminum race flywheel on it is the DS1000/1100 as it's SO massive that the flywheel has a smaller effect.

[stopintime]

Can the HM 1100 be used with the S2R swingarm? (I just can't remember) If not, can the machining be done on a complete engine or does it have to be split?

[Dirty Duc]

The S2R is set up like the "regular" Monster/ST arrangement.

[stopintime]

The S2R is set up like the "regular" Monster/ST arrangement.

I know - my question is about the cases on the HM 1100 engine - needing to be machined or not to fit the S2R swingarm (like with the MTS 1100)

[Dirty Duc]

The HM uses sbk width like the MTS.

[M900GP]

That's correct. I opted to carve on the MTS swingarm to fit the M900ie case.  It's wider than the SBK and MTS.

[koko64]

How is it going?