Pulsar GTiR — Stage 2 ECU Tune
- Modernized engine management system
- Improved turbocharger efficiency
- Enhanced engine responsiveness
The GTiR platform responds well to a plug-and-play Link ECU and a modern ball bearing turbo swap. This 1992 example was fitted with an S15 ball bearing unit and a suite of bolt-on supporting modifications, then calibrated to 139 kW at the wheels with 290 Nm of torque. Intended for closed-circuit competition use, the Link ECU offered the resolution needed to manage the updated turbo and supporting hardware without compromising drivability.
The calibration focused on transient response and torque delivery across the usable range, taking advantage of the improved spool characteristics from the ball bearing centre. Fuelling and ignition maps were tailored to suit the turbo upgrade and allow safe operation under load. A solid result for a thirty-year-old platform that still sees plenty of track time.
Why the Link ECU for this GTiR build?
The plug-and-play Link unit replaces the factory ECU and provides full control over fuel, ignition, and boost without needing to patch into the original loom. It's a clean solution for builds moving beyond factory boost levels.
What does the S15 ball bearing turbo offer over the factory unit?
Modern ball bearing turbos spool faster and run cooler than the factory journal bearing unit. The S15 turbo is a popular choice for its response and mid-range torque, well suited to circuit and sprint work.
Is this calibration suitable for street use?
This Stage 2 calibration is framed for closed-circuit competition use. Drivability was preserved during calibration, but the build sits outside typical street compliance parameters.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Link ECU.
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