PClll USB Duel Map for superbike

[Mike931]

Has anyone had a duel map made for their PClll?

Let me preface...I know this is all hodge podge even risky behavior...

Since the PC has a few 748 maps available I tried a few piggybacked with my FIM091 since I can't find my original chip after my move. The duel map advanced 748S map made the bike respond very well and it surprised me how obvious it was.


Ok now the real question...If you have done a duel map what did the tuner require in order to get the job done. O2 sensors at each header pipe etc??? I want to get this done right and now with ported heads and such.

[749Seddie]

Mark @ the Ducshop did mine...PERFECT

[AM-A-Duc]

2 sensors and more cash

[Mike931]

Originally Posted by AM-A-Duc

2 sensors and more cash

I guess I need to clarify. Does the Dynojet have specific connections that I can duplicate when I weld in the O2 bungs and provide the sensors?

This way I ride up and the tuner connects..done

[mr-x]

you can use the small 10mm ega plugs on the head pipes if your exhaust has them one cyl at a time

[OldBaldy]

So I'm not sure I understand your question, but note that the PCIII is NOT an O2 sensor controller. You cannot simply add exhaust sensors and connect them somehow to the PCiii.

You need a separate WBO2 controller unit, with built-in data logging (preferable to the types which require a laptop to log the data, for motorcycle use, unless you're happy to ride down the street or track with a laptop strapped to your back! )

The PCiii needs a static pre-developed map loaded onto it, from somewhere else.

You need a wide-band O2 sensor controller with data logging capabilities, to log the motor's RPM, TPS and air-fuel mixture readings from the exhaust sensors - such as that provided by the wide-band commander or zeitronix or FJO or Innovate or one of many other universal wide-band O2 controllers with data logging capabilities - while you ride (if you want to build your own AF data while you're riding)

- or -

the direct air-fuel mapping facilities provided by dynojet's tuning module on their dynos, at any dynojet tuning shop.

[Mike931]

Originally Posted by OldBaldy

So I'm not sure I understand your question, but note that the PCIII is NOT an O2 sensor controller. You cannot simply add exhaust sensors and connect them somehow to the PCiii.

You need a separate WBO2 controller unit, with built-in data logging (preferable to the types which require a laptop to log the data, for motorcycle use, unless you're happy to ride down the street or track with a laptop strapped to your back! )

The PCiii needs a static pre-developed map loaded onto it, from somewhere else.

You need a wide-band O2 sensor controller with data logging capabilities, to log the motor's RPM, TPS and air-fuel mixture readings from the exhaust sensors - such as that provided by the wide-band commander or zeitronix or FJO or Innovate or one of many other universal wide-band O2 controllers with data logging capabilities - while you ride (if you want to build your own AF data while you're riding)

- or -

the direct air-fuel mapping facilities provided by dynojet's tuning module on their dynos, at any dynojet tuning shop.

Actually you understand my question exactly! I knew there were two ways to do this. With and Innovate Motorsports (I have one already for a car project) or other WideBand 02 controller and Data Logger with me riding and figuring stuff out or my question...

What fittings do I need to provide a dynojet facility at each headpipe or better said, how do they hook up to each head pipe. What is their fitting size? Is it as simple as providing a standard O2 Bung at each pipe?

This is only brought about since I discovered that a PClll USB is duel map capable. Prior to my purchase I had thought only FIM had this ability. One of the maps I downloaded from the Dynojet website had an "advanced" map for a 748S that had separate cylinder mapping. A different map for each cylinder. I recalled the reason I bought my FIM chip in the first place. They claimed to have separate maps for each cylinder to compensate for a Horz cylinder lean condition. Last summer I had my bike dynoed and the AFR was all over the place! Doing a single map isn't good enough for me now that I know the PClll can map each cylinder. Plus, over the winter early spring I noticed the different combustion conditions in my vertical and horiz head chamber and piston faces.

So my options are do it myself the way you describe or provide a dynojet facility a way to easily hook up my bike for individual cylinder mapping.

I bought the PClll used just to play since the price was so good. This is an added bonus to do both cylinders. I am also not afraid of anything..see my avatar that is my own head I am flycutting.

[OldBaldy]

Originally Posted by Mike931

What fittings do I need to provide a dynojet facility at each headpipe or better said, how do they hook up to each head pipe. What is their fitting size? Is it as simple as providing a standard O2 Bung at each pipe?

Besides the WBO2 controller and data logger, you will need to add standard automotive 18MM x 1.5MM bungs for the wide-band sensor in each header pipe. I am assuming you will be using the common Bosch or more expensive NTK WB sensors - they all fit the same bung as above.

The way I did it, as I had a common single-channel WB controller (i.e. not able to have 2 sensors with logging of both cylinders at the same time) - was to run the WB sensor in one cylinder at a time, and log that cylinder's AF/Lambda data with RPM and TPS positions, and build the map for that specific cylinder and load that map into the specific cylinder map of the PCiii. Obviously, you need to put a plug in the other bung that you are currently not using. You can use any old car drain plug that measures 18MM x 1.5MM thread, for this, from your local auto store.

You can save time, if you get a dual channel WB controller, with 2 Bosch WB sensors, and log both AF channels with the RPM and TPS values simultaneously, but these controllers are, of course, more expensive.

The alternative to the dual-channel controller, is to find a controller that has a user-define 0-5V range input port, and hook-up any cheap WB controller with sensor for the 2nd cylinder, and feed that AF output signal to the other controller - as the WB sensors simply output a voltage from 0 to 5 V, similar to the TPS.

You would then have on your data logger, a stream of data records with the RPM, the TPS , the one cylinder AF or Lambda value (usually selectable by the user), and the 2nd cylinder's WB voltage value.

You would need to convert the 2nd cylinder's voltage value to the AF value - a simple enough conversion in Excel or in a database system, when you know what voltage translates to what AF value (specified in the WB sensor specs). Once you have converted the voltage numbers to AF, you are ready to calculate the new map for both cylinders.

What I did was to build a "GOAL" map in Excel, with thesame RPM and TPS axis as the PCiii in Advanced mode, and have a second table with the downloaded actual AF values from the data logger, and then ran a macro which calculated the difference between the ACTUAL table and the GOAL table, and produced a new map in a 3rd table, for inputing into the PCiii itself.

It all worked pretty well - and a lot of fun.

Here are the pics of the sensor bungs I had welded to my 996 motor...

http://motodyn.com/996wbo2sensor/index/

[Miykl]

I'm curious if the Dynoject "Tuning Link" software supports advanced maps?

[Pinocchio]

Originally Posted by Miykl

I'm curious if the Dynoject "Tuning Link" software supports advanced maps?

Yes...