Variant 1
ECU- Catalog engine
- 6700 220HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 220 HP
JCB · CM850 ECU
JCB FASTRAC CM850 tuning files
The JCB FASTRAC on the CM850, mapped from stock file to finished result. The matched variants sit between 170 and 220 HP from the factory. 5 distinct variants are catalogued here. For this platform the dependable path begins with Stage 1 and Stage 2. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Applicable work for the CM850 on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
5 distinct variants for the JCB FASTRAC on the CM850 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 6200 170HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 170 HP
Variant 3
ECU- Catalog engine
- 6200 170HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 170 HP
- ECU SW
- Z90655.04
- ECU HW
- 4921776
Variant 4
ECU- Catalog engine
- 6700 170HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 170 HP
- ECU SW
- Z90230.09
- ECU HW
- 4921776
Variant 5
ECU- Catalog engine
- 6700 170HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 170 HP
- ECU SW
- Z90366.07
- ECU HW
- 4921776
Related vehicles
Other vehicles built on the CM850 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the JCB FASTRAC on the CM850?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the CM850 ECU software on this model?
Yes — the JCB FASTRAC on the CM850 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.