DynoDojoTry it on the dyno
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Start hereVideo library
Getting started
The method: stock to finalYour first session, step by stepTroubleshooting
Engine & fuel
VE and speed-density fuellingLambda, AFR and target mixturesInjector scaling and dead timeFuel system capacityE85 and the stoich setting
Spark & knock
Ignition timing and MBTKnock, knock sensors and false knock
Boost, heat & limits
Boost control and wastegatesHeat: IAT, EGT, coolant and protectionMechanical limits
Reading results
Reading a dyno sheet and logCorrection factors and fair comparisons
Reference
Same concept, different namesWhat real software has that this does not (yet)
Reference

What real software has that this does not (yet)

The simulator keeps the fundamentals and leaves out features that would hide them. Expect these in real tools.

  • Variable valve timing: cam phasing tables that change the VE surface with cam angle. Core in OEM tuning; omitted here so VE stays a single surface.
  • Dead time vs battery voltage: a 2D injector latency table. Voltage is constant on a dyno, so it is a scalar here.
  • Flex-fuel: an ethanol content sensor blending between gasoline and E85 tables. Here E85 is a fixed blend with one stoich setting.
  • Boost compensations: real ECUs trim the boost target against intake air temperature, gear and coolant temperature. Here closed-loop boost exists (Scalars → Boost control) but the target is rpm-only, so a cold day has to be handled in the table.
  • Acceleration enrichment, closed-loop O₂ trims, per-cylinder trims, cold start, idle control, transient fuel film — all real, all deliberately left out.
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