Ranger — Stage 3 ECU Tune
- 38% increase in power output
- 50% increase in torque delivery
- Enhanced airflow management via upgraded intercooler
- Improved boost control and pressure delivery
- Superior fuel atomization with upgraded injector nozzles
- Optimized power and torque mapping for diesel performance
This build tackled the common ask: how far can you take a 3.2 Duratorq on the factory ECU before you run out of headroom. The workshop supplied a full hard parts list—Gen 2 turbo, uprated injectors with larger nozzles, Harrop intercooler, high pressure fuel pump, and boost control solenoids—all intended for off-road and competition use.
The dyno sheet came back with 152 kW at the wheels and 618 Nm, up from 110 kW and 412 Nm stock. That's 42 kW gained, with most of the midrange torque curve reshaped to suit the bigger turbo's characteristics. Fuel and timing tables were reworked to keep EGTs sensible under sustained load.
Calibration centred on injector pulse width scaling, turbo spool control, and rail pressure mapping to match the new nozzle flow. Not a simple flash—this one required iterative fuel trims and load-site adjustments to keep it stable across the operating range.
What ECU platform was used for this Stage 3 tune?
Factory ECU. The stock calibration was modified to accommodate the upgraded turbo, injectors, and fuelling hardware without needing a standalone.
Is this build streetable or competition-only?
This is a full Stage 3 build intended for off-road and closed-circuit competition use, given the extent of forced induction and fuelling changes.
What was the main challenge calibrating the upgraded injectors?
Scaling injector pulse width and rail pressure maps to suit the +30 nozzles, then dialling in fuel trims across the load sites to prevent overfuelling at part throttle.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.
Apply for Workshop Access