**Help needed: 1100 engine into 796 frame**

[ungeheuer]

Hmm, interesting.  So the 1100 non-evo engine swap idea may not be dead.  Just plug the spark plug hole one the timing belt side and put in a single spark ignition coil.  Seems like I would need:

- M1100 non-evo engine
- M 1100 race ecu
- single dual spark ignition coils
- spark plug hole plug (or just a normal spark plug in the hole)two spark plugs per DS head
- M1100 Termi Full System exhaust headers

^^ Fixed  

[SpikeC]

 I have an 1100DS ECU available, but it would need to be reflashed for the full exhaust system I suspect.

[He Man]

i shoved an m1100 evo motor into the older ST style frames. worked just fine. so it was atleast backwards compatible.

[Yogi]

^^ Not sure I agree with much of that.

If you're gonna do it, just use the correct coils for the motor you're gonna install.

Agree or not I',m a mechanic, auto electrician and engineer by trade.....not a hobby mechanic (Rolls Royce trained to name but one). What do you do?

If the design was so good why have they not continued with it?

M1100 Evo -  According to Ducati project manager Giuseppe Caprara, “The additional power comes from the revised cylinder head,” which features revised inlet ports and an altered combustion chamber shape. Additional alterations include a five-percent increase in intake valve lift and four-percent increase in exhaust valve lift. The engine also runs reshaped pistons that bump compression from 10.7:1 to 11.3:1 and are spun by a crankshaft featuring a lighter, Ducati 848 EVO-inspired flywheel. And while the previous generation's Vacural crankcases, which significantly reduce overall weight, went untouched, changes were made to the cylinder heads' cooling system to provide better cooling performance.

[Howie]

Can't say in this case, but today dual spark is usually used to clean up tail pipe emissions.  Yep, design a better combustion chamber and the dual spark becomes obsolete.

[ungeheuer]

Agree or not

Thanks  .  I didn't. 

Still don't.  Despite your oh-so awesome credentials.

If the design was so good why have they not continued with it?

Cost modification. 

[caperix]

I have a set of EVO heads & can photo and measure if you want to determine if the exhaust port location changed any.  I do know the intake port got larger.  If you do use the DS engine, I do think staying with the 2 plugs and swaping the dual output coils would be the way to go.  The combustion chamber was desiged around 2 flame fronts so eliminating 1 would not be good for power or fuel milage.  If I remember from Hemans swap the main issue he ran into with the evo engine was swapping the layshaft gear so the crank sensor would read properly, after that he was able to get it to run on a flashed MM ECU.

[hnracing]

Based on the engine comversions i have done i would recommend as option 1 to go for the M1100 EVO engine. It really is a good engine with good power. Even if it has a wet clutch ;-) Then reflash the ecu with a suitable map. Preferable with the exhaust valve and lambda sensors switched off.  Option 2 would be the Monster 1100DS engine. Not the same power but it has a dry clutch. Just change the coils. And a suitable reflash of the ecu. When the engine is in the frame you can start worry about the headers. Either they fit or you make them fit ;-)  .  You really do not have any other alternative apart from M696 & M796 engines. For example a S2R 1000DS would require a special one off timing gear to be made in order to run on the Siemens Ecu..
BR
Henrik
Monster -96 with a M1100 DS engine
1000SS -03 with a M1100 EVO engine

[ungeheuer]

Based on the engine comversions i have done i would recommve a dry clutchend as option 1 to go for the M1100 EVO engine. It really is a good engine with good power. Even if it has a wet clutch ;-) Then reflash the ecu with a suitable map. Preferable with the exhaust valve and lambda sensors switched off.  Option 2 would be the Monster 1100DS engine. Not the same power but it has a dry clutch. Just change the coils. And a suitable reflash of the ecu. When the engine is in the frame you can start worry about the headers. Either they fit or you make them fit ;-)  .  You really do not have any other alternative apart from M696 & M796 engines. For example a S2R 1000DS would require a special one off timing gear to be made in order to run on the Siemens Ecu..
BR
Henrik
Monster -96 with a M1100 DS engine
1000SS -03 with a M1100 EVO engine

My irrational (dry clutch) preference defers to Henrik's perfect sense (although +/- 5hp stock is neither here nor there IMO) 

[hnracing]

My personal Idea of a Monster is 2V aircooled dry clutch and loud 😀 and with the complete kit of TPO Beast R spagettisystem DP cam and Pistal HC Pistons the power is also there to beat the EVO 😀.

[koko64]

My HM1100Evo has a dry clutch.
A thread should be started on the differences between the 1100Evo and 1100DS in detail. You can feel the very light flywheel, timing gears, primary gears, and light crank. Requires throttle control.
While the hotter cams give the Evo about 5 more peak hp, it is at the expense of less midrange torque from the dyno charts Ive seen; not that its lacking! The DS must be an absolute grunter!

[Raux]

Hm is a narrow case isnt it?

[Gaijinsamadesu]

I'm thinking the best option is to go with the  M1100DS with a M1100 race ecu, and change to a dual spark coil and run two spark plugs per cylinder.  I won't need to change the injectors, and many other parts are the same.

[Gaijinsamadesu]

Based on 2-Skinny's part number comparison between the M696 and the M1100 non-evo.

[koko64]

Hm is a narrow case isnt it?

Not sure. I'd have to search for it. I'll start another thread.
Good luck.