TuneEdit Mapping
The TuneEdit program is the most powerful program in the TuneBoy product as it allows you to fix all the problems with the
standard Triumph, Aprilia or Benelli maps. Many of the mapping problems are not due to poor mapping but rather as a result of ride by noise and emission
regulations. These intentional lean points in the maps can be fixed without needing to put the bike on a dyno.
The default mode for TuneEdit only shows two tables, these are the fuel trim table and ignition trim table.
This is done so that the first time user can get up to speed without being overwhelmed by all the things that can be changed.
The following is a list of some of the tables the TuneEdit program can change, for more information see the documentation.
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Fuel Map
The main fuel map is made up of a grid divided into 16 throttle points and 24 RPM points. The following screen shot shows the
fuel map for a 2002 Daytona with sports exhaust. With the TuneEdit program you can change any part of this map, this allows very
fine control over the fuel system and allows any changes to be catered for.
The Aprilia tunes have a map for each cylinder as the demands of the front and rear cylinders are very different
The fuel map can also be shown as a 3D Graph to make it easier to see areas that need work.
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Ignition Map
The ignition map is made up of a grid divided into 16 load points and 16 RPM points.
The following screen shot shows the ignition map for a 2002 Daytona with sports exhaust.
The values in the map are degree's before top dead centre.
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Fuel Trim Map
The Fuel Trim Map provides a way to adjust the Fuel Map by a percentage, the Fuel Trim Map has a location corresponding to
each location in the Fuel Map, the percentage adjustment for each trim map location is applied to the Fuel Map when you
download the map to the bike.
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Ignition Trim Map
The Ignition Trim Map provides a way to offset the Ignition Map by a number of degree's, the Ignition Trim Map has a location
corresponding to each location in the Ignition Map, the degree's adjustment for each trim map location is applied to the Ignition
Map when you download the map to the bike.
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A/F Map
The Air Fuel Target maps (A/F 1 and A/F 2) are used by the ECU to calculate the ratio to mix the air and fuel at, this provides
us with a way to adjust the bikes mapping without needing a dyno.
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The TuneEdit program can display the data in
table format or as a 3D surface graph.
3D Graph
Viewing the data graphically often highlights areas in the mapping that need adjustment.
This first graph is the fuel map from the latest sports pipe tune for the current model 955i Daytona. The axis for the graph are
throttle position and RPM.
You can see from this graph that the map is not very smooth and in fact has many areas that don't look quite right, for example
the point where the pink lines cross seems out of place with the surrounding points in the graph.
This next graph shows the same map after several runs on the dyno using TuneEdit to customize the
map. You can clearly see that the map has taken on a much smoother look and jagged points in the graph have been cleaned up.
Using Power Commander Maps Off The Internet.
Another useful feature of the TuneEdit program is the ability to use PowerCommander maps that have been developed using a PCIII.
The TuneEdit program allows you to apply a PCIII map to the Fuel Trim map, this has the same effect as having a PCIII with the map loaded,
without having the liability of another point of failure. The TuneEdit software makes the PCIII hardware redundant.
The TuneEdit program will always get a better result than the PCIII because TuneEdit allows far more adjustment to accomodate your
modifications.
Why add another point for failure by wiring in more hardware when you can make the same changes inside the bikes ECU.
For more info on the TuneEdit program you can
download the full documentation from the Download
area.
Check the
Makes and Models supported to see if your bike is supported and to download the latest tunes.