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  • Tech & Tuning
    • Engine ManagementReference articles on ECU calibration, air modelling and engine control. Car-agnostic technical writing: the maths, the measurements, and the failure modes. Applies to any standalone platform, not just the cars on this site.
  • Partners
    • Tuning
      • SRD Tuning
      • MK Auto Repairs and Tuning
      • Litchfield
    • Wheels
      • Vossen
      • Rays Wheels UK
    • Engine Parts
      • Emtron
      • Pulsar Turbo
      • Rajab Racing
    • Interior
      • Corbeau Seats
  • Car Clubs
    • JDM Heroes
  • Previous Cars
    • R34 GTR
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Home ยป torque model

Chart of permitted wheel slip against lateral G for three traction control settings, each forming a dome that peaks in a straight line and tapers as cornering load builds
Posted inEngine Management Mk4 Supra Tuning

Traction Control on 1,114 whp: Feedforward, PID, and Why It Never Cuts

1,114 whp, 880 lb ft, and a 295 section road tyre on the back. Traction control on this car is not a driver aid. It is the thing that makes…
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Schematic showing engine speed continuing to rise while measured output torque falls away, the signature of clutch slip inside a ZF 8HP70 during a dyno pull
Posted inEngine Management Mk4 Supra Tuning

Where the Stock ZF 8HP70 Gives Up: 901 lb ft, Measured

The ZF 8HP is the default answer for anyone putting an automatic behind a big power engine, and the question that follows it everywhere is the same: how much will…
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calibration dbw ecu emtron feedforward gtr injectors litchfield manifold nissan r34 r34 gtr r35 rajab racing skyline slap adventures supra traction control turbo upgrade

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