calibration - BlownByTwins

Block diagram of the Emtron KV12 cruise control path from speed error through the cruise PID, TMF and DBW to the engine, with front axle average speed as feedback

Tuning Cruise Control on a 1,000+ bhp Toyota Supra

How to read a cruise control log on a torque-based Emtron KV12: one sample log from a 2JZ Supra, six checks that derive what P, I, D and base torque are really doing, and the formulas to redo them for your own gearing.

Bar chart comparing raw wheel speed channels reading 2.8 percent apart against a corrected Drive Slip channel reading zero at steady cruise

Engine Management Mk4 Supra Tuning

Staggered Tyres and Traction Control: What the ECU Corrects, and What It Can’t

If you run staggered tyres and a standalone ECU with traction control, there is a field in your configuration that almost certainly matters more than you think it does. It…

Chart comparing the true geometric open area of an 82 mm butterfly throttle against a linear table, showing the real curve sitting far below the straight line across the lower range

Engine Management Mk4 Supra Tuning

Throttle Body Effective Flow Area: Building a Correct Area vs Position Table

Open any modern standalone ECU that runs a throttle-based air model and you'll find a table mapping throttle position to flow area. Open a dozen real calibrations and a good…