Cressida — Stage 2 ECU Tune
- High boost capability with upgraded internals and head studs
- Enhanced fuel delivery with 1650cc injectors and Walbro 525 pump
- Optimized ignition timing with R35 coil kit and adjustable cam gears
- Improved turbocharger response with Turbosmart 6466 and 6Boost manifold
- Precise air-fuel ratio control via Elite 750 ECU with wideband sensor
This Cressida runs a properly built 1JZ—forged pistons, H-beam rods, ARP2000 head studs, and Kelford 264/272 cams with upgraded valve springs. The bottom end and head are set up for higher cylinder pressure, which the turbo and fueling took full advantage of. A medium-frame turbo with 0.83 A/R housing feeds the engine through a dedicated manifold and 50mm wastegate, while 1650cc injectors and a belt-driven fuel pump handle the supply side.
The Elite 750 gave us the resolution needed to manage cam timing, closed-loop wideband feedback, and boost control via the 3-port solenoid. Final result was 328.1 kW at the wheels and 621 Nm, recorded on the workshop dyno after calibration. The twin-plate clutch keeps the driveline together under load. Intended for closed-circuit competition use.
What ECU platform was used for this calibration?
The Elite 750 standalone ECU. It offers the I/O and processing headroom needed for individual coil control, cam timing, wideband closed-loop, and electronic boost control on a built 1JZ.
Is this file suitable for street use?
This is a Stage 2 build producing 328 kW at the wheels with a medium-frame turbo and forged internals. It's intended for off-road and closed-circuit competition use.
What fuel was the tune calibrated for?
Petrol. The file and supporting hardware are matched to the fuel type specified by the workshop during calibration.
This calibration was developed for a workshop like yours
The Toyota Cressida above was calibrated by Protunes for a partner workshop — they did the vehicle work and kept their customer; we did the calibration engineering on the Elite 750. Add professional ECU and TCU calibration to your workshop without employing a calibration engineer.
Apply for Workshop Access