Releases: thogue95/irFFB2026
Release list
irFFB2026 1.2.1
irFFB2026 — Release Notes
!!All of the SimHub files in v1.0.3 have not changed. Only irFFB2026 executable has been updated.
What's New
This release focuses on stability, reliability, and a smarter AutoTune. If you've experienced
the wheel feeling weaker than expected after getting in the car, or AutoTune not quite finding
the right level — this update addresses both.
The Wheel Feels Right From the Moment You Get In
The most reported issue — forces occasionally feeling weaker than expected right after getting
in the car or after a USB hiccup — has been resolved. Several small timing issues in the
way irFFB2026 hands off control to your wheel have been corrected. The result is that the
wheel should feel consistent and correct from the very first corner of every session.
AutoTune Now Works in Both Directions
Previously, AutoTune would only increase Max Force to prevent clipping. This meant that if
you hit a wall and the force spiked, AutoTune would raise Max Force to handle the spike —
but it would never come back down, leaving your forces weaker than optimal for the rest of
the session.
AutoTune now recovers automatically:
- Finds the optimal level during the first few laps as before
- Recovers after incidents — if a wall hit causes a temporary spike and raise, AutoTune
recognizes the incident is over and restores Max Force to the pre-incident level once
you're driving cleanly again - Adapts to tire degradation — over a long fuel run, as tires lose grip and forces
naturally weaken, AutoTune gradually lowers Max Force to keep the wheel feeling strong
and communicative through the entire stint
Settings Save Reliably
A bug that caused settings to occasionally not load correctly for a specific car and track
has been fixed. Your per-car, per-track settings will now load consistently every session.
Under the Hood
For the technically curious — a significant amount of work went into thread safety,
correct memory ordering, and latency in the force output path. None of this changes
how the wheel feels during normal driving, but it makes the application more robust
across different operating systems, hardware configurations, and session types.
Upgrade Notes
Your existing settings file works without any changes. AutoTune re-learns the optimal
Max Force at the start of each session — this is intentional, as conditions vary between
sessions.
1.0.3
I had great feedback on the initial release of irFFB2026 that I incorporated into improvements and adjustments in this update. As part of this release, I also made an update to the irFFB2026 SimHub connector. The overlays did not change, but I am including them in the assets below for consistency. At a minimum, use the irFFB2026.exe and the Toms.irFFB2026Connector.dll files going forward. You can now easily check for updates from within the irFFB2026 user interface.
Fixes in this release:
Added the damper telemetry for Trucks.
Fixed the shaking of the wheel when in a light car and excessively bumpy track combination.
Increased the effectiveness of the slider values to feel the effects of the slider changes.
Removed a bug that made the feel inconsistent when establishing connection to the wheel.
Improved the FFB effects for short wheel based cars.
Added a version update check.
Updated iRacing app.ini setting recommendations.
Fixes in SimHub irFFB Connector:
Fixed a bug in tracking updates between irFFB2026 and SimHub
1.0.2
irFFB2026
Initial public release of irFFB2026 1.0.1
Disclaimer:
irFFB2026 is an experimental iRacing FFB enhancement tool provided AS-IS with no warranty. It may cause wheel oscillation, hardware stress, or unexpected behavior. Test carefully in practice sessions, start with conservative settings, and calibrate your wheel in iRacing. The author(s) assume no liability for any damage or issues arising from its use.
irFFB2026 is an enhanced Force Feedback (FFB) tool for iRacing inspired by Grok and is a significant rewrite of irFFB2022. The original irFFB that is found at github/nlp80’s repository gave a great start at producing enhanced FFB effects that gave us the “Seat of Pants” feel. irFFB2022 did not change the core calculations for FFB. irFFB2026 is a major redesign and replacement of those core calculations. The irFFB2026 user interface (UI) may look and feel similar, but the experience of the FFB effects is significantly better. If you want to learn more, just ask @grok about the Pacejka Magic Formula and about irFFB2026 use of the formula.
irFFB2026 uses the famous Pacejka Magic Formula — a proven physics model used by real car manufacturers — to create exceptionally realistic force feedback. It accurately calculates self-aligning torque (SAT), the natural force that tries to straighten the front tires when cornering, giving you clear feedback about grip, oversteer, and understeer. What’s making an even bigger difference for many drivers is the vertical component of the formula, which models how up-and-down forces and changing tire loads affect steering feel. This allows you to feel weight transfer, suspension movement, and body roll in a very natural way. The combination of SAT and these vertical effects results in a much richer and more immersive steering experience that connects you better to the car.
The irFFB2026 user interface still keeps the original look at feel but the configuration is significantly reduced. Quick Tips replace the numerous sliders so that people should almost be able to launch and go. We all know iRacers just want to race and not deal with complex software.
The irFFB2026 SimHub integration has been updated as well with a new SimHub Connector DLL and SimHub Overlays. The SimHub Connector provides for three new properties of AutoTune, OversteerIntensity and UndersteerIntensity. OversteerIntensity and UndersteerIntensity properties can be used to drive the LFE Haptics (Shakers) for front and rear indication of oversteer and understeer conditions. The AutoTune property is for future overlay development.
The Connector DLL adds a new button binding control that allows for the toggling of the AutoTune function. This allows the user to disable the AutoTune function while the car is on the track. The NextFFB button binding control replaces the two buttons used to select the FFB mode to reduce the number of button bindings.
The irFFB Dash and Status overlays have been updated as well. The Status Overlay has been updated to include the status of AutoTune. Red is off and Green is on.
The irFFB Status overlay has been updated to include a Clipping Indicator next to the Max Force Value. If it is red, the FFB is clipping and green indicates no clipping.
