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irFFB

irFFB was created to experiment with the 360 Hz telemetry data that was recently made available by iRacing. The original intent was to feed the 360 Hz steering column torque data to a FFB steering wheel so that we could examine what benefits a higher FFB sampling rate might bring. The standard iRacing FFB output provides samples at 60 Hz, which is arguably not fast enough to generate an accurate (or pleasant) feel at the wheel. This is particularly noticeable with 'Direct Drive' wheels that output higher torques and have lower response times than gear or belt-driven equivalents.

Early versions of the app (< 1.3) include functionality that facilitates blind testing of different FFB types and a number of experimental FFB types that employ different forms of filtering and/or interpolation of the various data feeds we can acquire from iRacing.

In versions 1.3 and above, the blind testing functionality and some of the less useful experimental FFB types have been removed to simplify the app and the ability to mix in extra effects based on telemetry were added.

The FFB types available, and most of the technical details, are described in the FFB types page.