Ducati Monster Forum

I'm looking for feedback, preferably detailed information, regarding the use, configuration, pros and cons of this ECU by Rapid Bike. Their part number for the Sr@ 1000 is KRB3036. If you have used this or know someone that has and is willing to post up some details, please advise. Thanks!
  be::

Hate to refer anyone "there" but this had been discussed at length on the old board.  You can find it here http://www.ducatimonster.org/forums/showthread.php?t=163735 (http://www.ducatimonster.org/forums/showthread.php?t=163735).  Regardless of what we think of the place, there is a good amount of knowledge there.  Just a shame VS profits from it  :P

Edit: seems we have started a thread on the same here, in the Acc. and Mods. forum, its stickied at the top.  Hopefully that thread will grow with new developments...

Here it is and I am still maintaining it for updates.  The one at TOB is no longer maintained by me/anyone
http://ducatimonsterworldwide.org/index.php?topic=655.0

legrena,
What type of bike and what exhaust/air box do you have?

I have a 2007 Monster S2R 1000. Presently the bike has the stock ecu and airbox, but I have a set of CF Arrow's (full system) ready to be installed and was looking to add the Rapid module in the event I disliked the performance using the stock ecu/airbox with the new Arrow.

Legera,

Just installed the Rapidbike last night and will be able to provide my results to the board as i get in some test rides/dyno. For me the main advantage was availability.  There is currently no PCIII for the 2006/7/8 S2R1000.  The other advantage is that it is
more tunable.  The PCIII simply adds or subtracts fuel at some RPM ranges, but due to the o2 sensor on many bikes these days, cannot add
fuel at all rpm ranges.  The RB3 unit can add/subtract fuel at all ranges, eliminate the O2 sensor and closed loop system, retard and
advance spark, raise RPM limiter, and can hold two maps that can be activated by a handlebar switch (sold separately).  You can also
install a quick shifter kit.    Hope this helps,

you'll probably dislike the performance with the stock ecu and arrows, i have an 06 s2r1k w/ ti arrows and went the rapidbike route

pros: -it works
         -you can adjust your advance as well (w/ rb3)
         - you can use the rb on other bikes w/ the appropriate harness

cons: -install takes a little time
         -it doesnt use the stepper motor, so you have to *help* it start w/ the throttle
         -a bunch more wires, so its hard to keep an uncluttered look

* you may or may not need to do some additional tuning on your bike if the canned map doesnt work perfectly for you, in my case I have some *hiccups* around 5-6k I need to fix, thinking about getting wideband controller for this unless someone in L.A. has one and wants to do some tuning !!!

Dave M

I'm very sure that Full Arrows and open airbox won't work on a stock ECU.  I don't know about Full Arrows and a closed airbox.  Keep us posted!

Inka,
I thought the RB3 units these days replaces the stock O2 with an RBO2 emulator and not eliminate it?

that is just the O2 emulator.

RB1 is the piggy back unit
RB2 is the piggy back unit + Limiter removal and Ignition management
RB3 is the piggy back unit + limiter removal and ignition management + Multi map feature

You need to purchase the O2 emulator separately

You are correct, I misspoke.  I put on both the RB3 and O2 emulator.  I have removed the O2 sensor from the exhaust and will see how that goes.  If no issues, then I'll remove it entirely from the bike at the harness.  I'm not entirely clear if the O2 emulator needs the O2 sensor to be in place to work.  I'll see what happens and let everyone know

I think you will need both the emulator and the RB3.  The emulator tricks the stock ECU into "open" mode then the RB3 can do its job. Good luck and keep us posted.

Technically, we are a dealer for the rapid bike, but I've been waiting to offer them until I got more feedback.

fwiw, full Arrows on an otherwise stock bike works fine. S2R800 or 1000.

:) Chris

Inka,
yeah from Al at Moto4us helping me with the install, you need the emulator, also you can plug the hole and take the o2 sensor out because its not connected to the ecu, its just extra weight at that point.

I dont know about other guys bikes, but my 06 S2R1k stock with full ti arrow system ran too lean, would die sometimes etc etc. runs fine now w/ the rb3

I have a 2006 with the exact setup described and it runs great as is with stock ECU. I, like you figured that I'd change ( though I would have gone DP ECU route ) if it didn't run well, but its does. So next comes suspension goodies.

Great feedback. I'll go stock for now and see how the bike feels. Can always add the RB3 or DP ECU down the road if deemed necessary.

It may seem to run well, but have you put it on a dyno?   My suggestion is to make the mods that you want, but always check the results on a dyno.  Once you start modding, be prepared to back-out the mods if the AFR is wrong, or spend more and upgrade the fueling with the unit of your choice (DP ECU, RB3, whatever applies).

I thought mine was running well when I had just an open udder.  When it was dyno'd, I learned that the AFR was off the chart lean.  Had no problems with stalling or overheating.  Now that its fixed, there is a huge improvement in how it runs, an improvement that I would not have thought possible.  These engines are all way different, so I would place zero faith on what other people with the same bike have experienced

finally somebody with common sense...
who said: stock ecu + full exhaust no problems...not in my world

Now about w or w/o O2 sensor: with - on '07 up using the new RBO2, w/o - on '06 with older O2 simulator

for you guys that are describing performance with full arrow systems, are you talking baffles in or removed? iv'e currently got s2r1000 full arrow ti with baffles in, stock airbox and stock ecu. performance seems fine. not much different from stock.

Yeah, thats the thing, when people say they're bike is running fine with the stock ecu, they mean its not stuttering, stalling etc. That doesnt mean it has a good a/f ratio for the longevity of the motor or that it has the best performance, just that its not fuc*ed up.

check your plugs , if they're bone white, you're too lean. too lean means reduced engine life (possible overheating, valve damage, etc etc ) and less power.

We're on board with Rapid Bike now and are getting ready to start some extensive testing on our dyno. I've got a test kit on the way and a 749R that is running way too rich (strange problem to have huh!?)... I plan to test functionality, practicality, etc... and if all is well we will start offering them individually or at a reduced cost with an exhaust, air filter and air box lid for models that benefit from it. We'll be offering custom tunes as well as sharing all the maps.

I'm stoked to get going with them as we've needed a solution for a while and this seems to be it, but the support just hasn't been there. I believe this problem is cured now.

Installed the Arrow CF full system. Bike on Dyno with some minor tweaks, O2 sensor is in-place - getting 85.3 with stock airbox to the ground. Bike feels and sounds great thus far. Will revise after some riding time.

What is the A/F ratio throughout the rev range? Can you post the graph?

Thanks,

Anthony Creek

 [laugh] I had that 749/999 problem 2 years ago, good luck...let us know if you can figure it out without calling somebody who knows about that problem from same person...
BTW how you cured the support problem?!