MS 3 Sport 996 GT3 Cup Kit
Quick Start Manual

V1.0 10/11/2013

Table of Contents

Table of Contents
1 Before you begin ................................................................................................................................................. 3
1.1 Software Installation ...................................................................................................................................................................... 3
1.2 Hardware Checklist ......................................................................................................................................................................... 3
1.3 Hardware Installation ..................................................................................................................................................................... 3
2 Tools: Modas Sport ............................................................................................................................................. 4
2.1 Modas Sport Calibration Tool Installation and Use ........................................................................................................... 4
2.2 Loading the workbase ................................................................................................................................................................... 4
2.3 Connecting to the ECU .................................................................................................................................................................. 6
2.4 Measurements .................................................................................................................................................................................. 7
2.5 Calibration Changes with Working Page (WP) and Reference Page (RP) ................................................................. 7
2.6 Reading Data Sets from ECU and Writing Data Sets to ECU ......................................................................................... 9
2.7 Editing the work base .................................................................................................................................................................. 10
3 Tools: WinDCP and WinDarab ......................................................................................................................... 13
3.1 Data Logging .................................................................................................................................................................................. 13
4 Calibration .......................................................................................................................................................... 14
4.1 Starting the Calibration Process .............................................................................................................................................. 14
4.2 Variant Coding ............................................................................................................................................................................... 14
4.3 The Function Description - Your Calibration Reference ................................................................................................ 17

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1 Before you begin
1.1 Software Installation
In addition to the Quick Start guide, the USB Drive included with your ECU includes the software needed to interface with the ECU as well as data analysis
software and important reference documents. The following are included:▪ Modas Sport with MS 3 Sport GT3 Cup workbase – Calibration interface software▪ MSA Box II Driver▪ WinDarab V7 Free – Data analysis software. If you plan on keeping an existing WinDarab V6 installation, create a separate install for WinDarab V7 Free.
WinDarab upgrade options can be provided by authorized Bosch Motorsport
dealers.
▪ WinDCP – Compact Flash card configuration software for use with GT3 Cup C
5 Datalogger▪ Function Description – MS 3 Sport ECU software manual▪ Bosch Motorsport Catalog
Run the installation executable file to install all programs on your laptop. Software updates for all tools are available on the Bosch Motorsport website.

1.2 Hardware Checklist▪ MS 3 Sport GT3 Cup ECU▪ MSA Box II Calibration Interface▪ Laptop▪ Installation USB Drive

1.3 Hardware Installation
The MS 3.1 GT3 Cup ECU can be removed and directly replaced with the MS 3
Sport GT3 Cup ECU. Take care when removing and reattaching the plastic ECU
header connectors.

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2 | Tools: Modas Sport

2 Tools: Modas Sport
2.1 Modas Sport Calibration Tool Installationand UseThe ModasSport operation and calibration software allows users to access thecontrol variables and engine maps on Bosch Motorsport control units and thenmake changes to them. It can also record measurements.
To work with ModasSport, you need a computer, preferably a laptop so you canbe more flexible.

The computer must have a USB port to connect the MSA Box. The MSA Box isthe communication link between the computer and the diagnosis connector plugin the vehicle's wiring harness, in most cases located on the passenger side Bpillar.

Before using the MSA Box, your computer must have the MSA Box driver installed.

2.2 Loading the workbase
After running the installation routine, open Modas Sport.
Select the starter project file (.mxprj extension). Once loaded, double-click on the
newly created project:

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You will notice that many windows pop up and display calibration values fromthe ECU:

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2 | Tools: Modas Sport

2.3 Connecting to the ECU
When opened, ModasSport switches to measuring and calibration mode for the
new workbase. The ECU status light is green if connec-tion to the control unit has
been established. If it does not, please ensure that the MSA Box is plugged into
the vehicle and laptop and verify that no MSA Box errors are present. The ECU
status light is red if connection to the control unit has failed or if the ECU does
not have the power switched on. Any errors will be displayed in the Output Window as shown in the botton left corner of the screenshot below.

If you are working from a new ECU and the workbase supplied by Bosch, the ECU
should not be different from the calibration on the laptop. This will result in nodifferences being reported in the ‘Diff.’ tab.

When the connection light and both WP and RP are illuminated green and 0 differences are shown, everything between the laptop and the ECU has synchedcorrectly.

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2.4 Measurements
After a connection has been established, you can start and stop online measurements of ECU variables by clicking "Measurement". If the computer is connectedto the control unit, the oscilloscope and measurement window display the current values. Click "Record" to create measurement files that you can then open
and analyze with WinDarab or WinDarab-Free (download on the bosch-motorsport website). The measurement file stores all the values shown in the worksheet.

If too many variables are on the same measurement page, the measured data
may be slow to refresh. To prevent this from happening and to provide more
space for measureable variables, additional sheets can be created by right clicking the lower menu bar and selection “New”. A new sheet will be inserted at theend of the row.

2.5 Calibration Changes with Working Page (WP)and Reference Page (RP)Modas Sport has two data memories: a temporary RAM memory, to which theuser can write directly, and a non-temporary, indirectly programmable Flashmemory. Each data memory contains one dataset: the RAM dataset is called"Work page WP"; the Flash memory dataset is called "Reference page RP".
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2 | Tools: Modas Sport

Changes to the Calibration can only be made in the Working Page (WP). Whenthese changes are to be saved permanently, the user copies the work page to thereference page. The ECU will complete a power cycle and the data will be saved
to the reference page.

Making changes to the calibration requires the following steps:
1. Select WP to change parameters

2. Change parameters by selecting the calibratable parameter, typing the desired value, and hitting ‘Enter’. Note the changed values with arrows indicating the direction of the change in comparison to the reference page.

3. If you would like to keep the changes, copy WP to RP. See the screenshot below.

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If you do not want to revert to the dataset before the changes were made, simply
copy in the other direction.

2.6 Reading Data Sets from ECU and Writing
Data Sets to ECU
You will notice that when you plug into the ECU and establish a connection, the
WP and RP will either be colored Green or Red.
▪ If the WP/RP are GREEN, it means that the ECU and laptop have the same data sets and it’s OK to start working on them
▪ If the WP/RP are RED, it means that the data sets are different between ECU
and laptop and one of the following steps must be taken
You now have the choice of working with the computer dataset or the control
unit dataset. If you have amended data on the computer, you will want to continue working on this updated dataset. In this case, you can upload this updated
dataset to the control unit by clicking "Write data to ECU". See the screenshot
below:

If the data on the ECU is the desired data set, you can read out the control unit
dataset and edit it on the computer. To do this, click "Read data from ECU". See
the screenshot below:

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2 | Tools: Modas Sport

NoticeIf the data on the ECU and laptop are unknown, save the data
set on the laptop first before reading data from the ECU. Afterdata is loaded from the ECU to the laptop, save the data fromthe WP to a new file.
Compare datasets from the computer and from the control unit every time theconnection between the two is made. If they differ, decide which dataset you
want to continue working on.
Should you want to save your parameter changes as a new hex file or load a previously saved revision, click on the arrow under the “Working Page WP” tab. A
menu will appear, as shown in the screenshot below. Enter the desired file nameand click ‘OK’.

2.7 Editing the work base
A basic work base is provided with the MS3 Sport kit, however, the user can customize the work base if desired.
New worksheets can be created by right clicking on the bar at the bottom of thescreen and selecting ‘New’. This will create a totally blank screen on which variable viewing windows and oscilloscopes can be placed. Variables can be draggedfrom the Variables List directly into the work page. These values will be displayed
numerically by default.

Variables can also be viewed using the oscilloscope function. To view variables inthis window, simply right click on the desired variable and select “New oscilloscope” as shown below.

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MS 3 Sport 996 GT3 Cup Kit

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Right clicking on the variable names in the window and choosing the “settings”
option will bring up the window where scaling and color can be adjusted.
After entering your data offline on the computer and online on the control unit,
you can start fine-tuning (applying) with the engine running. You can change
your calibration values on the work page WP. Press the F2 key to show/hide thelist of variables.
You can filter the lists by measurement (- ALL MEASUREMENTS) and tuning values (- ALL CHARACTERISTICS).
You can filter the tuning values again, by:▪ * Single values (- values)▪ * Curves (- curves)▪ * Engine maps (- maps)▪ * Text fields (- text)

You can also filter by function, as shown below.

The functions in the function filter go by the same names and categories as described in the functional framework. When you filter by function, the screen
shows only those measurements and calibration values that are required in or influence the function.

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2 | Tools: Modas SportYou can also obtain information on the variables by right-clicking the variables in
the label list. In the measurement window, calibration values on the work pageare shown in white (only these are editable) and measurements are shown ingrey. This allows you to differentiate between the two.

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3 Tools: WinDCP and WinDarab
3.1 Data Logging
The MS3 Sport supports the same Bosch Cardmemory protocol as the MS3.1,
permitting the use of the C5 Data Logger that the Porsche GT3 Cup was originally equipped with. However, some changes are needed in WinDCP to configure
the memory cards. To set up WinDCP to log data to the C5, the following steps
need to be taken:▪ Place the MS3 Sport a2l file in the same location as your other a2l files▪ Load this a2l file into WinDCP by clicking the MS3 button and finding the
new a2l file:▪ You can then create a new DCP configuration and flash the configuration todata cards using the same method as used with the MS3.1▪ WinDarab Free can be downloaded from the website to analyse the C5 data
output.

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4 | Calibration

4 Calibration
4.1 Starting the Calibration Process
The Bosch Motorsport MS3 Sport for GT3 Cup cars does come with a base calibration flashed to the ECU but it is critically im-portant to perform the following
process before the car encounters track use.
▪ Set the throttle using the ‘Set Throttle’ Macro in ModasSport. The lower stop
value should be written with the throttle plate com-pletely closed (ie back off
the idle screw until throttle is shut)▪ Verify all sensor values and enter in correct sensor calibration curves, offsets,
slopes, etc for your particular sensors. The kit in-cludes base values for common sensors but by no means does this encompass all variants. It is your responsibility to ensure that sensor values read correctly.
▪ Enter in the correct ECU pinning as determined by the variant matrix in thesection below.
▪ Verfiy correct trigger wheel offset and timing output by putting a timing lighton cylinder #1. The advance value on the timing light should exactly equal
the ign_1 value. If not, adjust IGN_OFFS to obtain identical timing between
ign_1 and timing light.
▪ When changing the injection, ignition, and lambda setpoint values, keep inmind that the maps correspond to the map switch with the DEF maps corresponding to mappos 2.

4.2 Variant Coding
The Porsche GT3 Cup came in many different ECU pinout variations. The MS3
Sport ECU is designed to compensate for these pinout changes without requiring
modifications to the engine or chassis harness.
For the sake of simplicity, each of the 996 GT3 Cup versions is considered a variant:Variant 1: Formerly MS3.1 SW Versions 310P301P-R ->SW_VAR_CW = 1
Variant 2: Formerly MS3.1 SW Versions 310P302B-E-> SW_VAR_CW = 2
Variant 3: Formerly MS3.1 SW Versions 310P302F-K ->SW_VAR_CW = 3
To set the pinout of the ECU, simply change the variable SW_VAR_CW to correspond with the correct car variant and ECU pin location.

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Calibration | 4

SW_VAR_CW

0

1

2

3

Acc X

custom

-

-

M08

Acc Y

custom--M56

Clutch Pressure custom

-

-

-

Crank Pressure custom

-

-

-

EGT1

custom

F05

F05

F08

EGT2

custom

F40

F40

F05

Exhaust Flap

custom---Fuel Temp

custom

F21

F21

-

Gear Cutcustom

F08

F08

F40

Gearbox temp custom

-

-

F21

Intake Flap 2

custom---Laptrigger

custom

F60

F60

F60

Map Sw. Input custom
2

F41

F41

F41

Oil Temp

custom

M08

M08

F22

TC Sw.

custom

-

-

F38

M41

M41

-

Water Pressure custom

Fig 1. – ECU functions and pins as a function of car variant number SW_VAR_CW
For cars that are a hybrid using components from different generations of GT3
Cup cars, a different table exists. In order to use this table to select the ECU pin
for each of the name functions, the parameter SW_VAR_CW must be set to 0 before the following codeword can be used.
If the pinout of the chassis and engine harnesses is unknown, simply monitor thechannel signal values and change the PIN_XXXX_CW value for each of the functions until a reasonable value appears.

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4 | Calibration

Custom Pins

0

1

2

PIN_ACCX_CW

-

M08

-

PIN_ACCY_CW

-

M56

-

PIN_PCLUTCH_CW -

F05

F21

PIN_PCRANK_CW

-

F08

-

PIN_TEX1_CW

-

F05

F08

PIN_TEX2_CW

-

F05

F40

PIN_EXFLAP_CW

-

M04

-

PIN_TFUEL_CW

-

F21

M08

PIN_GEARCUT_CW -

F08

F40

PIN_TGEAR_CW

-

F21

F38

PIN_RESFLAP2_CW -F34-

PIN_LAP_CW

-

F26

F60

PIN_MAPSW2_CW -

F27

F41

PIN_TOIL_CW

-

F22

M08

PIN_TCSW_CW

-

F38

-

Fig 2. – Custom pin codewords
Example: 2005 GT3 Cup car (Variant 3) with a chassis harness from a 2002 GT3Cup (Variant 1):

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SW_VAR_CW

0

1

2

3

Acc X

custom

-

-

M08

Acc Y

custom--M56

Clutch Pressure custom

-

-

-

Crank Pressure custom

-

-

-

EGT1

custom

F05

F05

F08

EGT2

custom

F40

F40

F05

Exhaust Flap

custom---Fuel Temp

custom

F21

F21

-

Gear Cutcustom

F08

F08

F40

Gearbox temp custom

-

-

F21

Intake Flap 2

custom---Laptrigger

custom

F60

F60

F60

Map Sw. Input custom
2

F41

F41

F41

Oil Temp

custom

M08

M08

F22

TC Sw.

custom--F38

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Calibration | 4

Custom Pins

0

1

2

PIN_ACCX_CW

-

M08

-

PIN_ACCY_CW

-

M56

-

PIN_PCLUTCH_CW -

F05

F21

PIN_PCRANK_CW

-

F08

-

PIN_TEX1_CW

-

F05

F08

PIN_TEX2_CW

-

F05

F40

PIN_EXFLAP_CW

-

M04

-

PIN_TFUEL_CW

-

F21

M08

PIN_GEARCUT_CW -

F08

F40

PIN_TGEAR_CW

-

F21

F38

PIN_RESFLAP2_CW -F34-

PIN_LAP_CW

-

F26

F60

PIN_MAPSW2_CW -

F27

F41

PIN_TOIL_CW

F22

M08

-

Note: The Oil Temp input does not have a destination pin in this particular appli‐
cation.

4.3 The Function Description - Your Calibration
Reference
Provided on your installation USB drive is a PDF document that details the innerworkings of the software. This document is intended to be your reference forquestions beyond the scope of the Quick Start guide. Please reference this extremely valuable resource for any questions you have during the calibration
process.

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Contact
US Dealers:
East Coast:
Mech Tronic
Bill Rothmech-tronic@verizon.net
631-423-0523
323 Coolidge Dr.
Centerport, NY 11721
West Coast:
Sakata Motorsport Electronics
Brian Sakata
brian@sakatamotorsport.com
714-446-9473
1217 N. Patt St.
Anaheim, CA 92801
Bosch:
Europe:Bosch Engineering GmbH
Motorsport
Robert-Bosch-Allee 174232 AbstattGermany
Tel. +49 7062 911 79101
Fax +49 7062 911 79104
North and South America:
Bosch Engineering North America
Motorsports
38000 Hills Tech Drive
Farmington Hills, MI 48331-3417
United States of America
Tel. +1 248 876 2977
Fax +1 248 876 7373
Asia Pacific:
Bosch Engineering K.K.
Motorsport Department
18F Queen’s Tower C, 2-3-5 Minato Mirai
Nishi-ku, Yokohama-shi
Kanagawa 220-6218
Japan
Tel. +81 45 650 5610
Fax +81 45 650 5611
E-Mail: motorsport@bosch.com
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All rights such as copying and forwarding through us.
Modifications reserved.