1123cc Big Bore Piston Kit for 1000DS

[DRKWNG]

 

[koko64]

Peak torque of 82 ft lbs at only 5000rpm and holds 90+ hp from 5800-7800rpm.
That's a fierce motor. 

[Travman]

I just wanted to mention three items which really added to the benefits of he engine work before wrapping up this thread.  After the engine work was complete the bike ran great.  Then I heard about the accelerator pump utility program for the Power Commander III from Drunken Monkey. Basically even more gas is dumped into the system when the throttle is twisted aggressively.  It is a free download from the Power Commander website and there are no drawbacks to drivability since it doesn't do anything with normal throttle inputs, only when you feel like getting on it.  Often you will hear about the great throttle response that FCR flatside carburetors provide. Well this is the fuel injected equivalent. Very satisfying.  Here is a link to some links about the utility. It is surprising that you don't hear more about more people using it.  I highly recommend this to anyone with a fuel injected bike with a PCIII.

http://www.ducatimonsterforum.org/index.php?topic=46558.0Kd

[Travman]

I also wanted to mention the addition of the Ducati Performance Spaghetti headers a few months after the engine work.  The design was intended to equalize the flow from each cylinder to the mufflers.  These definitely helped the engine feel smoother and rev faster. With the extra power the engine needed the increased exhaust flow.  You can see what the headers looked like here.
http://www.ducatimonsterforum.org/index.php?topic=49061.0

[Travman]

Finally, I did add a Lithium ion battery.  With the extra compression the bike does have some trouble starting mainly in the cold weather.  My Monster never was a good starter in the cold. It was worse with the compression bumped up to about 12:1.  This battery has increased cold starting capabilities and weighs a lot less than a regular battery.  Also upgraded the starter wires and ground wire. The jury is still out on this one. I think it is a success, but i haven't had a chance to test it out for very long.  Over Christmas I did have trouble starting it again at about 32 degrees F. However I was able to hook up the fast charger and start the bike 15 minutes later.

[Curmudgeon]

Which battery did you use? My 796 is a dodgy cold starter and @ 11.5:1 I believe I have a CCA issue with the stock battery. When I leave it on the charger a while, cold starting definitely improves. Which cables too BTW?

[Travman]

Which battery did you use? My 796 is a dodgy cold starter and @ 11.5:1 I believe I have a CCA issue with the stock battery. When I leave it on the charger a while, cold starting definitely improves. Which cables too BTW?

It is a Full Spectrum Power.  I think it was a Pulse P3.  I didn't do a bit of research on this purchase.  I trusted my parts guy on this one (Nate at DucPond, Winchester, VA).    http://fullspectrumpower.com/products_pulse.html

The cables were just fabbed up with larger wire and better contacts.  They do this for lots of their Ducatis.  Evidently we aren't the only two with cold starting problems.

[Curmudgeon]

Thanks for the recommendation!

If I'm able to confirm my diagnosis, I'll take this route. Better start buying lottery tickets.  Agreed, Nate is very helpful and I'd trust his input. He's already come through for me twice and is pretty reasonable. Wish he and Donnie weren't 140 miles from me! DNA wants Donnie to take a bunch of readings stone cold and for that I'd need to borrow a trailer again. Grrr... I'd just as soon he pull the bodywork off this beast too. More fasteners than a 777 to get to that battery!

[Raux]

Thanks for the recommendation!

If I'm able to confirm my diagnosis, I'll take this route. Better start buying lottery tickets.  Agreed, Nate is very helpful and I'd trust his input. He's already come through for me twice and is pretty reasonable. Wish he and Donnie weren't 140 miles from me! DNA wants Donnie to take a bunch of readings stone cold and for that I'd need to borrow a trailer again. Grrr... I'd just as soon he pull the bodywork off this beast too. More fasteners than a 777 to get to that battery!

did you read the tech section about oil level solving the cold start problem?

[Curmudgeon]

did you read the tech section about oil level solving the cold start problem?

Thanks, Raux,

For what it's worth, my oil level is in the middle of the sight glass. This isn't my first Ducati. 

Tried to explain to the newbie that a 796 has almost zip to do with a 696. The cold start strategy in the ECU is apparently completely different. There is no fast idle lever, the compression is almost 1.3:1 higher, and the starter circuit will not permit you to crank the bike if it doesn't fire immediately. In the case of mine, some parameter isn't being reached based on either cranking speed or voltage or...

It would appear, but remains to be confirmed with more cycles, that the 215 CCA Yuasa battery will start the bike first try if the battery is charged for ~ 1/2 past full charge on the tender and the tender is left attached when first starting. Otherwise, the tricks for the M1100 seem to mostly work.

BTW, I have two V8's in the garage, one with a Bosch and one with a SAGEM ecu and neither will fire unless the cranking speed is ~ <700 RPM for 3-5 seconds after which the injectors are allowed to fire. My issue is something similar with the 796. (Not my first dance with ECU's, including Siemens. Sold $$$ vehicles for 40 years before retiring 3 years ago.)

PS - Hope the kid's 696 was just his oil level. He needs to put some miles on that thing. I got the impression he thinks it's a iPhone!

Regards,

[Ohm3d]

Great thread.!

[motolocopat]

Real nice job there Travman!  You should post up some photos of the bike.

What piston options are there for going 1123cc+ now days on a DS