Katsalas Labs

Free physics tools for car people. Each one is a physics model you can change and watch respond, so you can see why a car behaves the way it does.

Tools
Suspension kinematics

HardPoint

Set the pivot points for a double wishbone, MacPherson strut or multi-link corner. Turn a knob, roll the body, and watch camber, bump steer and the roll centre move.

  • Roll centre
  • Bump steer
  • Camber gain
  • Anti-dive
  • Body roll
Open HardPoint
Engine simulation

PowerBand

Describe an engine by its hardware: bore, stroke, cams, ports, runners, headers and boost. A crank-angle gas-dynamics model runs it and draws the power and torque curves.

  • Dyno curves
  • VE & MBT tables
  • Turbo matching
  • Cam phasing
  • Dyno compare
Open PowerBand