iRacing 2021 Season 2 is here! This Release features the legendary Hockenheimring Baden-Württemberg, the 2021 Super Late Model, a new Sonoma Raceway config (IndyCar 2012-2018), Bark River International Raceway (a new Dirt Road track), and even more dirt racing content! We’ve added specialized dirt tires to classic asphalt oval machines, covered Bristol Motor Speedway in dirt, and welcome the addition of a new Circuit de Barcelona-Catalunya config (Rallycross). Our engineers have applied the New Damage Model to five more vehicles, brand new tires have been added to 14 more cars, and AI Racing with 17 more pieces of content is here. Be sure to also give the newly overhauled Paint Shop a try as you drive in to what iRacing 2021 Season 2 has to offer!
Season highlights include:
• Super Late Model (upgraded for 2021)
• Circuit de Barcelona-Catalunya – Rallycross
• Bark River International Raceway
• Bristol Motor Speedway – Dirt
• Hockenheimring Baden-Württemberg
• Sonoma Raceway – IndyCar 2012-2018
• Paint Shop Overhaul
• Stockcar Dirt Tires
• Smoke and Dust Volumetric and Lighting Updates
• Replay Audio Processing – Compression and Distortion DSP Effects
• A new Pace Car
• New Damage Model (Dallara iR-01, Formula Renault 2.0, NASCAR Chevrolet Monte Carlo – 1987, NASCAR Ford Thunderbird – 1987, and Street Stock)
• New Tires (Aston Martin DBR9 GT1, Audi 90 GTO, BMW M4 GT4, Chevrolet Corvette C6.R GT1, Ford GT GT2, Indy Pro 2000 PM-18, Porsche 718 Cayman GT4 Clubsport MR, Supercars Ford Mustang GT, Supercars Holden ZB Commodore, USF 2000, [Legacy] Riley MkXX Daytona Prototype – 2008, [Legacy] V8 Supercar Ford Falcon – 2009, [Legacy] V8 Supercar Ford FG Falcon – 2014, and [Legacy] V8 Supercar Holden VF Commodore – 2014)
• AI Racing Content (Audi R8 LMS, BMW M4 GT3, Ferrari 488 GT3, Ford GT GT2/GT3 – Ford GT GT3, Lamborghini Huracán GT3 EVO, McLaren MP4-12C GT3, Mercedes-AMG GT3, Auto Club Speedway – Oval, Hockenheimring Baden-Württemberg (ALL), Las Vegas Motor Speedway – Oval, New Hampshire Motor Speedway – Road Course with South Oval, and New Hampshire Motor Speedway – Oval)
Full 2021 Season 2 Release details are below.
iRACING UI:
General
– Fixed an issue where opening a second instance of the iRacing UI from the Membersite causes the first instance to visually lock-up.
– Fixed the behavior where the “X” button would not close the UI while the Simulator was up.
Paint Shop
– The Paint Shop has received an overhaul in both form and function!
– – The new design maximizes the available screen space, using the full width of the iRacing UI.
– – The 3D Model Viewer has been fully integrated into the Paint Shop, allowing you to directly manipulate your view of the model as you work.
– – Full helmet, suit, and driver customization is also available in the Paint Shop, and is fully integrated with the 3D Model Viewer.
– – Car model options have been organized for ease of use, especially for custom paints.
– – Paint Swatches and the color picker have been improved, for easy copying, pasting, and organizing your color schemes.
– – Driver characters are now fully animated in the 3D Model Viewer.
– Some new sponsors have been added to the Paint Shop including:
– – ButtKicker
– – Engine Ice
– – RYCO Motorsports
– Turn Racing’s logos have been updated.
3D Model Viewer
– Fixed an issue with the display of slanted numbers.
– Fixed an issue with the incorrect character encoding of driver names being painted on cars.
MEMBERSITE:
iRacers Online
– The count of iRacers Online has been made more accurate.
– – It now includes Members whom are connected to iRacing via the iRacing UI, and all Members in Sessions.
Declare Drivers
– A new data endpoint has been added for Broadcasters to get the list of Teams and their declared drivers.
– – This data endpoint is accessed through the URL: https://members.iracing.com/membersite/GetSubsessi…ms?subsessionid=<subsessionID>
– – The intended use for this data is so Broadcasters can know from the start of a Session who will be driving for each Team over the course of the Session.
– – – This data will not provide data for single driver sessions.
– – – The data for Team Sessions without Declared Drivers is no different than what can be obtained by tracking the in-Sim telemetry.
SIMULATION:
Race Servers
– Fixed an issue that would sometimes cause no Open Practice sessions to be available on race servers for popular series.
– Fixed an issue that could cause some teams in driver-swap series to not be assigned into an Open Practice before the Race was launched.
Race Control
– The method for calculating the race start pit exit delay and the missed start tow delay have been updated to account for situations in which the slower class may hang back to give themselves additional space at the start of a multi-class race.
Pace Car
– A new pace car, Sedan, has been added to iRacing!
– – This pace car is a sedan-style vehicle, not manufactured by any of the known names in cars. Our secretly created sedan provides no brand favoritism while maintaining a stylish and professional look on the track!
– – The Sedan is now the default pace car for asphalt oval events.
– – The Sedan may be selected for use, like our existing pace cars, while creating Hosted Sessions at asphalt ovals.
Opponent Cars
– Fixed some issue with a small variety of opponent cars including:
– – Opponent cars were heavily striking curbs at Long Beach Street Circuit.
– – Some stockcars appeared to be floating slightly at oval tracks.
Dynamic Track
– Track surface dynamics have been updated to react more realistically with tires of different compounds, such that softer tires will tend to produce a thicker layer of rubber than harder tires.
– Added the ability for the server to begin transmitting dynamic track data for the next session to clients, which is designed to make session transitions more accurate, and avoid large visual changes in the first few moments of a new session.
Team Racing
– Fixed a bug that prevented Race Control from properly enforcing the driver-swap rule where all declared drivers must drive a fair share if the same member was declared as a driver for multiple teams.
Dirt Racing
– Specialized dirt racing tires are now enabled on many NASCAR stockcar-type vehicles.
– – These tires load automatically when an appropriate vehicle is loaded onto a track with a dirt surface.
– – This change includes the following vehicles:
– – – ARCA Menards Chevrolet Impala
– – – NASCAR Chevrolet Monte Carlo – 1987
– – – NASCAR Cup Series Chevrolet Camaro ZL1
– – – NASCAR Cup Series Ford Mustang
– – – NASCAR Cup Series Toyota Camry
– – – NASCAR Ford Thunderbird – 1987
– – – NASCAR Gander Outdoors Chevrolet Silverado
– – – NASCAR Gander Outdoors Ford F150
– – – NASCAR Gander Outdoors Toyota Tundra
– – – NASCAR Xfinity Chevrolet Camaro
– – – NASCAR Xfinity Ford Mustang
– – – NASCAR Xfinity Toyota Supra
– – – [Legacy] NASCAR Cup Chevrolet Impala COT – 2009
– – – [Legacy] NASCAR Cup Chevrolet SS – 2013
– – – [Legacy] NASCAR Cup Ford Fusion – 2016
– – – [Legacy] NASCAR Nationwide Chevrolet Impala – 2012
– – – [Legacy] NASCAR Truck Chevrolet Silverado – 2008
– – – [Legacy] NASCAR Xfinity Chevrolet Camaro – 2014
– – – [Legacy] NASCAR Xfinity Ford Mustang – 2016
– – – [Legacy] NASCAR Xfinity Toyota Camry – 2015
AI Racing
– AI Racing is now available for the following additional vehicles:
– – Audi R8 LMS
– – BMW M4 GT3
– – Ferrari 488 GT3
– – Ford GT GT2/GT3 – Ford GT GT3
– – Lamborghini Huracán GT3 EVO
– – McLaren MP4-12C GT3
– – Mercedes-AMG GT3
– AI Racing is now available at the following additional tracks:
– – Auto Club Speedway – Oval
– – Hockenheimring Baden-Württemberg (ALL)
– – Las Vegas Motor Speedway – Oval
– – New Hampshire Motor Speedway – Oval
– – New Hampshire Motor Speedway – Road Course with South Oval
– AI Drivers have completed the following specialized training courses:
– – Maximum Handling at Maximum Speed
– – RACE-422 Avoidance Tactics during Deceleration
– – Nerves of Steel: Lessons on Pit Stall Deceleration from a Lollipop Veteran
– – Monitoring your Tire Traction (Level II)
– – What’s the Deal with Double-Row Restarts?
– – Eyes & Brain – Looking & Planning
– – The Ancient Art of Fly-Catching to Improve Your Reaction Time
– – Chicanes – A Thesis by Nigel Saunders
– – 360 degrees to Steering Recovery
– AI Drivers have improved their skills with the following cars:
– – BMW M4 GT4
– – Indy Pro 2000 PM-18
– – Porsche 718 Cayman GT4 Clubsport MR
– – USF 2000
– AI Drivers have received additional training at the following tracks:
– – Homestead Miami Speedway – Oval
– – Nürburgring Grand-Prix-Strecke – Grand Prix.
Race Series
– For the IMSA Racing Series, all included cars now load into the event with some IMSA-specific modifications.
– – The following vehicles are effected, and ONLY effected during IMSA Racing Series events:
– – – BMW M4 GT3
– – – BMW M8 GTE
– – – Chevrolet Corvette C8.R GTE
– – – Dallara P217
– – – Ferrari 488 GTE
– – – Lamborghini Huracán GT3 EVO
– – – Porsche 911 RSR
– – These cars have IMSA branding and number positions. This includes the windshield banner, number boards, etc.
– – These cars have white numbers in the number boards, and a rear number that can be color-changed in the paint shop.
– – Each car has Michelin tires except for the Lamborghini and the Ferrari, which have no tire branding.
– – Each car has IMSA leaderboards. These digital displays show the car’s position in its class. The digits on each display are the same color as it’s car class (red for GTLM, etc.).
– – For cars that have round position lights on the sides, they remain, but will not function by design.
New Damage Model
– The New Damage Model has been enabled on the following vehicles:
– – Dallara iR-01
– – Formula Renault 2.0
– – NASCAR Chevrolet Monte Carlo – 1987
– – NASCAR Ford Thunderbird – 1987
– – Street Stock
– The manner in which tires react to forces have been adjusted so they handle object impacts more consistently.
– – Tires handle forces from contact with anything other than the ground with a more simple algorithm that favors consistency. Forces acting on tires from objects will now much closer match those seen by opponents for all drivers. This should make wheel damage more consistent between player and opponent cars.
– – Tire impacts with a surface, such as the track, curbs, and off-road areas, will continue to use the original high-complexity tire force algorithm.
– – Wheel-on-wheel impacts should now damage both wheels appropriately, rather than one car seeming to always come out of the incident with more damage. In addition, these changes make future development easier as the forces involved are now much more consistent in repeat situations.
– The following parameters have been adjusted to improve the look and feel of crashes:
– – Reduced the torsion bar torque applied to vehicles that have had one or more tires removed.
– – Tire and rim colliders are now separate objects.
– – The wheel hyper-extending algorithm has been improved with more accurate force calculations.
– A variety of properties were adjusted to improve the appearance of crashing opponent vehicles, including:
– – Smoothed wheel reattachment forces power to reduce jitteriness.
– – Reduced the likelihood of force application spikes from wall collisions.
– – Optimized visual averaging of wheel stability to reduce visual hopping.
– – Wheel tethers have been tightened slightly and force damping has been increased.
– Fixed an issue with opponent car wheels could appear to detach in the wrong position.
– Fixed an issue where towing to the pits with minimal tire damage could cause additional damage to the car.
Qualification Conduct Scrutiny System
– Some additional adjustments have been made for the Qualification Conduct Scrutiny System particularly concerning braking, pit speeds, and optimal race line speeds. These adjustments will be more noticeable at higher levels of scrutiny.
Gridding
– Fixed an issue where custom grids for Hosted Team Sessions were sometimes ignored.
Hybrid Deployment System
– The automated hybrid deployment system has been re-written with some slight improvements on deployment strategy.
– – The following vehicles are affected:
– – – Audi R18
– – – McLaren MP4-30
– – – Porsche 919
– Fixed an issue with the manual deployment option for hybrid deployment systems where the offset was acting in the opposite direction.
Rendering
– The majority of the tiny pin-holes in the middle of the paved racing surfaces, where sky could show through from behind as bright speckles, has been fixed.
– Altered the non-VR driving camera’s near clip from 10cm to 2cm, to reduce the amount of clipping away of objects very near the camera. This now matches the settings that are used in VR.
Visual Effects
– Tire smoke and dust cloud effects have been substantially upgraded!
– – Smoke and dust now provide a greater sense of volume and density.
– – Lighting and shading of smoke and dust clouds has been improved.
– – The sizes and behaviors of dust and smoke clouds have been updated.
– – Dust puffs kicked-up by spinning tires have been updated.
– Spark effects have been updated.
– The particle system’s memory management has been optimized for improved performance.
Audio
– Audio levels for scrape sounds for all material types have been improved.
– Mild impact sounds for all material types have been improved.
XAudio2
– Replay Master Compressor, a new XAudio 2 option has been added to the XAudio2 sound options.
– – This is a multi-channel compressor/limiter that will work in surround, stereo and headsets.
– – – The effect can ONLY be used in replays to increase the volume of quieter sounds and mimics the dynamics used in TV Broadcasts.
– – – The compressor effect will give a perceived increase in overall volume but we have been careful not to allow the peak volume to exceed the levels obtained with the effect turned off.
– – The three options available for the Replay Master Compressor option are:
– – – None: Normal replay dynamics with zero effect.
– – – Mild: A noticeable compression of the dynamic range. The effect will boost the quieter sounds for a more consistent amplitude.
– – – Heavy: Simulates a higher level of audio compression similar to TV and radio broadcasts. The quieter sounds will be a lot louder.
– Replay Distortion: The replay cameras now have a microphone distortion setting for XAudio2 in the replay camera tool (CTRL+ F12). This digital sound processing was inspired by real-life TV broadcasts where track-side cameras exceed their sound pressure levels and start to distort.
– – This effect mimics a track-side microphone, usually with a lower SPL rating of around 100dB, picking up a loud car, such as a NASCAR at 140+SPL, whooshing past as though it were a mic mounted on the wall.
– – This setting allows you to configure a camera’s microphone to sound less clean and more crunchy. The setting choices are: None, Light or Heavy.
– – – The sounds need to be pretty loud to start getting into the distortion. For instance – very close to a track-side camera!
– – – Additionally, you can use the camera’s mic gain setting to push the sounds up into even more distortion.
– – – – A Word of Caution: Pushing a camera’s mic gain setting too far may distort the softer sounds and possibly drive your audio device too hard.
– – We have carefully made the distortion effect dynamic, and this will allow relatively clean audio until a vehicle reaches a threshold where it starts to saturate into a crunchy yet smooth distortion. It sounds most realistic when a loud car passes a camera very closely.
Controls
– Logic has been added to only trigger a toggle variable if the underlying value was changed.
– – This stops toggle variables from triggering if a user selects the same value from a dropdown or spin control without making an actual change.
– The virtual mirror can now be resized with a new variable, “VirtualMirrorSize”, in the [Drive Screen] section of the “app.ini” file.
– – You can set this variable to the following values:
– – – 0 = large
– – – 1 = medium (default)
– – – 2 = small
– – – 3 = extra small
– Support has been added for mapping a second throttle and brake input to match the second clutch input. This can be useful when using hand controls to gang two paddles together so both operate the brake or throttle. Or to combine a hand brake with an analog paddle on the wheel rim.
– – The hand brake, throttle2, brake2, and clutch2 control setup has been moved from the driving options tab to the control options tab.
– Fixed an issue where the “toggle selected control” hotkey was not working in black boxes.
Force Feedback
– A new force limiter has been implemented that reduces force feedback (FFB) generated when a strong vehicle crash or other extreme force event occurs. This system is designed to protect you from your wheel when it generates potentially dangerous levels of force.
– – A new limiter indicator on the ‘F’ meter illuminates when the limiter is engaged.
– – By default, this system is enabled. It may be disabled by setting the new “FFBUseForceLimiter=0” within the [Force Feedback] section of the “app.ini” file.
– – A new telemetry output, “SteeringWheelLimiter” has been added that indicates the force limit percentage being applied.
Cameras
– Live camera edits should no longer cause camera shake.
– Unused controls are now hidden during the camera joystick calibration.
– Scroll bars have been added to the camera tool config tab so dialog options fit better on the screen.
– Viewing distance is now prevented from going negative when setting up rendering.
– Fixed a bug that caused camera tool joystick calibration to fail in a Replay.
– Fixed several issues with blimp cameras.
Spectators
– An option for Spectators to be able to access the in-Sim “Start/Stop Spotting” user interface has been added.
– – This allows Spectators to view the live/extrapolated car positions in case they are spotting for a team that does not make them a team member. This might happen if the team does not want the potential spotter to see their car setup.
– – Spectator access to this interface is disabled by default, but can be enabled by hand-editing the “app.ini” file, and changing the newly-added “ShowSpotterUIForSpectators” setting in the “[spectator]” section from 0 to 1.
Telemetry
– A new flag, “irsdk_oilTempWarning”, has been added to the “EngineWarnings” variable that is set to 1 when the oil temperatures get above 125 C. Just like the “irsdk_waterTempWarning” flag, this is an approximate value; some cars can handle higher oil temperatures.
– A new switch, “irsdkLimitFileSize=0”, has been added to the “[Misc]” section of the “app.ini” file.
– – Setting this value to 1 automatically splits the .ibt telemetry files into 90 megabyte chunks that McLaren ATLAS can load.
– Fixed an error in telemetry logging of “CarIdxEstTime” that could cause the value to jump or report from a different car type.
CARS:
ARCA Menards Chevrolet Impala
– For the New Damage Model, the following adjustments have been made:
– – Adjusted the suspension system to prevent excessive hyper-extensions.
– – Wheel strengths have been upgraded; rear wheels should be tougher than front wheels to dissuade rear-endings.
– – Wheel tethers have been improved.
– iRacing setups have been updated.
Aston Martin DBR9 GT1
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – The range of possible front and rear suspension springs has been reduced.
– – Minimum front ride height has been increased.
– – Maximum possible negative camber settings have been reduced.
– iRacing setups have been updated.
Audi 90 GTO
– Tire spec has been updated.
– Fixed an issue with some backfire effects.
– iRacing setups have been updated.
Audi R18
– iRacing setups have been updated.
Audi R8 LMS
– Some vehicle parameters have been updated, including:
– – Aerodynamic downforce has been reduced slightly.
– – Toe adjustment increments and limits have been updated.
– iRacing setups have been updated.
Audi RS 3 LMS
– For the New Damage Model, nose strength has been improved.
– Fixed an issue with swaybar arm lengths.
BMW M4 GT3
– Toe adjustment increments and limits have been updated.
– iRacing setups have been updated.
BMW M4 GT4
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Tire compound and construction has been adjusted.
– – Various changes to better align with real-world IMSA PC specification. Ride height rules, camber limits, fuel burn rate, fuel tank size and fill rate, minimum tire pressures and pitstop procedures have all been adjusted.
– – Various suspension parameters have been adjusted.
– – Rear toe adjustment range has been reduced to positive values only with finer adjustment increments (0.1 mm).
– – Rear wing range has been adjusted.
– For the New Damage Model, the nose and rear are now more resistant to visual scrape effects.
– iRacing setups have been updated.
BMW Z4 GT3
– iRacing setups have been updated.
Chevrolet Corvette C6.R GT1
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Minimum front ride height has been increased.
– – The range of front and rear suspension springs has been reduced.
– – Maximum negative camber settings have been reduced.
– iRacing setups have been updated.
Chevrolet Corvette C7 Daytona Prototype
– Tire spec has been updated.
– Aerodynamic scaling has been adjusted.
– iRacing setups have been updated.
Chevrolet Monte Carlo SS
– Some vehicle parameters have been updated, including:
– – Aerodynamic model has been updated.
– – Tire temperatures and pressure limits have been adjusted.
– – Fueling rate has been increased from 2kg/s to 5.5kg/s.
– iRacing setups have been updated.
Dallara F3
– iRacing setups have been updated.
Dallara iR-01
– The New Damage Model has been enabled for this vehicle!
– Windshield mirrors have been adjusted.
– – The mirrors have been enlarged, and moved forward and up slightly. The mirror portals have also adjusted where the camera is generating the reflection from.
– Some vehicle parameters have been updated, including:
– – Single car and in-traffic aerodynamic profiles have been updated.
– – Aerodynamic offsets for wing positions have been updated.
– – Gear stack and shifting parameters have been updated.
– – Clutch plate thickness and slip temperatures have been updated.
– – Tire compounds have been updated.
– – Fuel tank capacity has been updated.
– – Pit scripts have been updated.
– Updated the exterior windshield models for some level-of-detail distances.
– iRacing setups have been updated.
Dallara IR-18
– For the New Damage Model, a variety of properties were adjusted to improve the appearance of crashing opponent vehicles, including:
– – Vehicle floor has been made slightly more flexible and smooth in order to reduce forces for curb impacts.
– – Tether angular stiffness for detached car parts has been reduced to mitigate jittering and snagging.
– Some vehicle parameters have been updated, including:
– – Black tire compound grip has been increased.
– – Overall tire grip at short ovals has been reduced.
– – Temperature control for tires while at speedways has been updated.
– While running at a Road course, wing numbers have been enlarged to match the 2021 rules.
– Backfires effects have been updated, and off-throttle effects have been added.
Dirt Late Model
– (ALL) – iRacing setups have been updated.
Dirt Midget
– iRacing setups have been updated.
Dirt Modified
– (ALL) – iRacing setups have been updated.
Dirt Sprint Car
– (ALL) – iRacing setups have been updated.
Dirt Sprint Car Non-Winged
– (ALL) – iRacing setups have been updated.
Dirt Street Stock
– iRacing setups have been updated.
Dirt UMP Modified
– Significant chassis, suspension, tire properties, and tire construction updates.
– – These are sweeping changes based on some of what we learned from creating other Dirt Oval cars.
– Center-of-gravity location has been updated slightly, and rear geometry has been adjusted slightly.
– iRacing setups have been updated.
Ferrari 488 GT3
– Toe adjustment increments and limits have been updated.
– iRacing setups have been updated.
Ferrari 488 GTE
– Some vehicle parameters have been updated, including:
– – Aerodynamic drag has been increased slightly.
– – Differential ramp angle options have been added to allow all GTE cars to have the same ramps available.
Ford GTE
– Some vehicle parameters have been updated, including:
– – Aerodynamic drag has been decreased slightly.
– – Differential ramp angle options have been added to allow all GTE cars to have the same ramps available.
Ford GT GT2/GT3
– (Ford GT GT2) – Tire spec has been updated.
– (Ford GT GT2) – Up-shift RPM lights have been updated to better match the engine power curve.
– (Ford GT GT2) – Fixed an issue where front tires would protrude through the fenders under heavy load. Also fixed an issue where the splitter suffered excessive track contact.
– – Allowable ride height ranges have been reset to reflect IMSA GT2 rules and common practice during the time this car was racing.
– (Ford GT GT3) – Toe adjustment increments and limits have been updated.
– (Ford GT GT3) – iRacing setups have been updated.
Ford Mustang FR500S
– iRacing setups have been updated.
Formula Renault 2.0
– The New Damage Model has been enabled for this vehicle!
HPD ARX-01c
– Tire spec has been updated.
– Aerodynamic scaling has been adjusted.
– iRacing setups have been updated.
Indy Pro 2000 PM-18
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Aerodynamic downforce has been significantly reduced.
– – Downforce loss in the draft has been adjusted to improve oval racing.
– – Minimum cold tire pressures have been increased to 20 psi.
– – Tire parameters have been adjusted slightly to reduce floatiness and sudden loss of rear grip when heavily loaded vertically and laterally.
– – Brake authority has been reduced.
– – Low speed suspension damping has been reduced for numerical stability.
– – Diff ramps have been updated to combinations that are more realistic.
– For the New Damage Model, suspension and car floors have been strengthened to prevent damage under regular driving conditions.
– iRacing setups have been updated.
Lamborghini Huracán GT3 EVO
– Toe adjustment increments and limits have been updated.
– Steering wheel logo has been updated.
– Rear ID light has been removed.
– iRacing setups have been updated.
McLaren MP4-12C GT3
– Some vehicle parameters have been updated, including:
– – Aerodynamic downforce has been reduced slightly.
– – Toe adjustment increments and limits have been updated.
– iRacing setups have been updated.
McLaren MP4-30
– iRacing setups have been updated.
Mercedes-AMG GT3
– Some vehicle parameters have been updated, including:
– – Engine braking has been reduced slightly to help settle the rear of car on trail braking.
– – High-speed suspension damping has been updated to improve grip and platform control for curb strikes and at bumpy circuits.
– – Toe adjustment increments and limits have been updated.
– – Fuel consumption rate has been increased and engine cooling has been decreased to compensate for a reduction in engine braking efficiency.
– – Differential preload range is now set to 50 to 200 N·m.
– iRacing setups have been updated.
Modified – SK
– (Modified – SK) – iRacing setups have been updated.
– (NASCAR Whelen Tour Modified) – iRacing setups have been updated.
NASCAR Chevrolet Monte Carlo – 1987
– The New Damage Model has been enabled for this vehicle!
– iRacing setups have been updated.
NASCAR Cup Series Chevrolet Camaro ZL1
– Drafting parameters for superspeedways have been updated.
– iRacing setups have been updated.
NASCAR Cup Series Ford Mustang
– Drafting parameters for superspeedways have been updated.
– iRacing setups have been updated.
NASCAR Cup Series Toyota Camry
– Drafting parameters for superspeedways have been updated.
– iRacing setups have been updated.
NASCAR Ford Thunderbird – 1987
– The New Damage Model has been enabled for this vehicle!
– iRacing setups have been updated.
NASCAR Gander Outdoors Chevrolet Silverado
– Some visual damage effects have been updated.
– iRacing setups have been updated.
NASCAR Gander Outdoors Ford F150
– Some visual damage effects have been updated.
– iRacing setups have been updated.
NASCAR Gander Outdoors Toyota Tundra
– Some visual damage effects have been updated.
– iRacing setups have been updated.
NASCAR Xfinity Chevrolet Camaro
– iRacing setups have been updated.
NASCAR Xfinity Ford Mustang
– iRacing setups have been updated.
NASCAR Xfinity Toyota Supra
– iRacing setups have been updated.
Nissan GTP ZXT
– Some vehicle parameters have been updated, including:
– – Front suspension has been updated.
– – The RPM at which the up-shift light illuminates has been reduced to prevent the chirp.
– Fixed an issue with off-throttle backfire effects.
– iRacing setups have been updated.
Porsche 718 Cayman GT4 Clubsport MR
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Tire compound and construction has been adjusted.
– – Various changes to better align with real-world IMSA PC specification. Ride height rules, camber limits, fuel burn rate, fuel tank size and fill rate, minimum tire pressures and pitstop procedures have all been adjusted.
– – Various suspension parameters have been adjusted.
– – Rear toe adjustment range has been reduced to positive values only with finer adjustment increments (0.1 mm).
– – Rear wing range has been adjusted.
– For the New Damage Model, the nose and rear are now more resistant to visual scrape effects.
– iRacing setups have been updated.
Porsche 911 GT3 Cup (991)
– Rear collision parameters have been improved to prevent tailing cars from driving underneath the vehicle.
– Anti-stall clutch has been removed.
Porsche 911 RSR
– Aerodynamic downforce has been reduced slightly.
Porsche 919
– iRacing setups have been updated.
Radical SR8
– Tire parameters have been updated.
– Some vehicle parameters have been updated, including:
– – Rear suspension geometry has been updated.
– – Diff plates have been reduced
– – Front suspension caster adjustment range has been increased.
– Fixed an issue with the orientation of some backfire effects.
– iRacing setups have been updated.
SCCA Spec Racer Ford
– iRacing setups have been updated.
Silver Crown
– Some vehicle parameters have been updated, including:
– – First gear and clutch pedal have been removed.
– – Rear ride-height limits have been reduced in order to limit over-extending the rear shocks.
– iRacing setups have been updated.
Sprint Car
– Opponent car properties have been updated to improve the look of front ride heights and spring stiffnesses, especially at on high banked tracks.
Street Stock
– The New Damage Model has been enabled for this car!
– iRacing setups have been updated.
Supercars Ford Mustang GT
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Properties have been updated for improved real-world correlation.
– – Aerodynamic downforce has been significantly reduced.
– – Minimum and maximum static ride heights have been adjusted to ensure the vehicle is run at an appropriate ride height based on the aerodynamic mapping.
– iRacing setups have been updated.
Supercars Holden ZB Commodore
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Properties have been updated for improved real-world correlation.
– – Aerodynamic downforce has been significantly reduced.
– – Minimum and maximum static ride heights have been adjusted to ensure the vehicle is run at an appropriate ride height based on the aerodynamic mapping.
– iRacing setups have been updated.
Super Late Model
– FULLY RE-BUILT VEHICLE!
– – The Super Late Model has been re-built, using the latest 2021 NASCAR model!
– – – The Super Late Model ranks among the fastest race cars to ever hit the short track. The 358 cub in V8 pumps-out more than 550 horsepower, but that’s just for starters. Weighing-in at 2800 lbs and featuring a fully adjustable rear suspension and the offset weight distribution of a straight rail chassis, the Super Late Model is a cross between a Modified and a NASCAR Nationwide car. Considering the huge amounts of downforce generated by its body and underbody, and the Super Late Model is capable of generating higher cornering speeds than a NASCAR Gen6 Chevy SS, Ford Fusion or Toyota Camry. For 2021 Season 2, the iRacing Super Late Model received a bodywork update reflecting the Next-Gen cars that have gradually been working their way into major promotions across the country.
– – Current owners receive this fully re-built vehicle free of charge, as it completely replaces the previous Super Late Model version.
– – Add the Super Late Model to your digital garage by purchasing it from the iRacing Store, here: https://members.iracing.com/membersite/member/CarDetail.do?carid=54
USF 2000
– Tire spec has been updated.
– Some vehicle parameters have been updated, including:
– – Aerodynamic side-force center of pressure has been moved rearward to mitigate snap oversteer.
– – Aerodynamic calculations have been added back into the garage.
– – Downforce loss in the draft as been adjusted with the aim to improve oval racing.
– – The number of available rear wing settings has been reduced to eliminate a number of options that have counter intuitive performance.
– – Brake system has been updated.
– – Low speed suspension damping has been reduced.
– For the New Damage Model, suspension and car floors have been strengthened to prevent damage under regular driving conditions.
– iRacing setups have been updated.
Williams FW31
– Rolling tire heat has been reduced to avoid overheating at high-speed tracks.
[Legacy] Riley MkXX Daytona Prototype – 2008
– Tire spec has been updated.
– Aerodynamic scaling has been adjusted.
– iRacing setups have been updated.
[Legacy] V8 Supercar Ford Falcon – 2009
– Tire spec has been updated.
[Legacy] V8 Supercar Ford FG Falcon – 2014
– Tire spec has been updated.
[Legacy] V8 Supercar Holden VF Commodore – 2014
– Tire spec has been updated.
TRACKS:
Atlanta Motor Speedway
– (Oval) – Track surface properties have been adjusted.
Autodromo Nazionale Monza
– (Autodromo Nazionale Monza – Grand Prix) – Camera set has been updated.
Auto Club Speedway
– (Oval) – Track surface properties have been updated.
Bark River International Raceway
– NEW TRACK!
– – A new Dirt Road track, Bark River International Raceway, is now available!
– – – The heritage of short course off-road racing has a uniquely midwestern flair to it, and the upper peninsula of Michigan features one of the sport’s premier tracks in Bark River International Raceway. Owned and operated by the Bark River Lions Club, the facility has hosted short course off-road racing for nearly half a century, with the sport’s top drivers heading to the track every August for one of the biggest race weekends of the year. The Bark River track layout is one of the most unique in short course racing. It features a tricky mix of sweeping and tight corners that force drivers to be precise in their inputs, as well as natural jumps and multiple fast straightaways that lead to full-throttle racing. Not everyone has what it takes to win at Bark River, and those who pull it off truly have to earn it.
– – Add Bark River International Raceway to your digital landscape by purchasing it from the iRacing Store, here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=396
Bristol Motor Speedway
– NEW TRACK CONFIGURATION!
– – A new Dirt Oval track configuration, Dirt, has been added to Bristol Motor Speedway!
– – – For the first time since 2001, and the first time for NASCAR Cup since 1970, dirt racing at Bristol is back! Thousands of digital truckloads of dirt have been brought in to fill in the banking down to an angle of 19 degrees. This track supports any of our existing dirt cars, as well as the addition of dirt tires on our top level NASCAR Cup car. Enjoy racing here ahead of the real-world event on March 28th.
– – Members who currently own this track have been granted access to this configuration for free.
– – Add Bristol Motor Speedway to your digital landscape by purchasing it from the iRacing Store, here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=101
Charlotte Motor Speedway
– (Charlotte Motor Speedway – Roval) – Camera set has been updated.
– (Oval – 2018) – Track surface properties have been updated.
Circuit des 24 Heures du Mans
– (Circuit des 24 Heures du Mans – 24 Heures du Man) – Camera set has been updated.
Circuit de Barcelona-Catalunya
– NEW TRACK CONFIGURATION!
– – A new Dirt Road track configuration, Rallycross, has been added to Circuit de Barcelona-Catalunya!
– – – iRacing Rallycross (iRX) returns with the addition of the real rallycross circuit at Circuit de Barcelona-Catalunya. This mixed surface RX course features a dirt section and jump as well as a paved Joker. Track surfaces utilize parts of the existing pavement course as well as two gravelly areas off-road.
– – Members who currently own this track have been granted access to this configuration for free.
– – Add Circuit de Barcelona-Catalunya to your digital landscape by purchasing it from the iRacing Store, here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=345
Circuit de Spa-Francorchamps
– (ALL) – Camera set has been updated.
Daytona International Speedway
– (ALL) – Gain-Time checkpoints have been added to pit exit where speed bumps were previously located.
– (Multiple) – The turtle curbs for the back-straight chicane have been updated.
– (Road Course) – Pit exit point has been adjusted to better match the current IMSA track layout.
Detroit Grand Prix at Belle Isle
– Water shaders have been improved with more accurate normal maps and coastal fading reflections.
Eldora Speedway
– Camera set has been updated.
Fairbury Speedway
– Fixed a course cut by cutting Turn 3 and Turn 4 through pit lane.
Hockenheimring Baden-Württemberg
– NEW TRACK!
– – A new Road track, Hockenheimring Baden-Württemberg, is now available!
– – – One of Europe’s premier racing circuits, the heritage of the Hockenheimring takes back to 1932, when it was called “Dreieckskurs” (or “triangle course”). The track has undergone multiple redesigns since then, most recently in 2002, when a dramatically shortened new layout eliminated the long straightaways through the forest that produced exciting racing, but were taxing on engines and difficult for fans to see. Although the redesign was divisive among drivers and teams who welcomed the changes and those who missed the challenges of the old track, it kept the German Grand Prix at the track for 2002 and beyond. The modern iteration of Hockenheim was designed by Hermann Tilke as one of his earliest major works. The full layout clocks in at just under three miles, with 17 turns that mix high-speed corners with tight and technical hairpins. Notable sections and corners include the Nordkurve, the fast right-hander that drivers see first after starting the race; the long, sweeping left-handed Parabolika that charges into the track’s tightest hairpin; and Sachs, another tight left-hander that makes up part of the stadium section in the latter stages of the lap. The Hockenheimring also features a number of shorter layouts for touring car and club racing, shortening the overall length to better suit these vehicles.
– – This track includes six configurations, including: Grand Prix, National A, National B, Outer, Short A, and Short B.
– – Add Hockenheimring Baden-Württemberg to your digital landscape by purchasing it from the iRacing Store, here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=390
Homestead Miami Speedway
– (Oval & Indy Oval) – Track surface properties have been updated.
Kansas Speedway
– (Oval) – Track surface properties have been updated.
Knoxville Raceway
– Camera set has been updated.
Michigan International Speedway
– Track surface properties have been updated.
Nashville Fairgrounds Speedway
– (Nashville Fairgrounds Speedway – Oval) – Camera set has been updated.
Okayama International Circuit
– (Okayama International Circuit – Full Course and Okayama International Circuit – Short) – Camera set has been updated.
Richmond Raceway
– Track surface properties have been updated.
Road America
– (Road America – Full) – Camera set has been updated.
Road Atlanta
– (Road Atlanta – Full Course) – Camera set has been updated.
– Track, off-track, and terrain surface textures have been updated.
– Wall textures have been updated.
Sebring International Raceway
– (Sebring International Raceway – International) – Camera set has been updated.
– Fixed some issues with pit walls and green cones.
Silverstone Circuit
– (Silverstone Circuit – Grand Prix) – Camera set has been updated.
Sonoma Raceway
– NEW TRACK CONFIGURATION!
– – A new Road track configuration, IndyCar 2012-2018, has been added to Sonoma Raceway!
– – – This new config is representative of what was raced by IndyCar in the years roughly between 2012 and 2018.
– – Members who currently own this track have been granted access to this configuration for free.
– – Add Sonoma Raceway to your digital landscape by purchasing it from the iRacing Store, here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=48
– Track configuration names have been updated to better reflect their real-world counterparts:
– – Cup
– – Cup Historic
– – IndyCar 2012-2018
– – IndyCar 2008-2011
– – IndyCar pre-2008
– – Rallycross
Summit Point Raceway
– (Summit Point Raceway – Summit Point Raceway) – Camera set has been updated.
WeatherTech Raceway at Laguna Seca
– (ALL) – Camera set has been updated.
Weedsport Speedway
– Camera set has been updated.
– Fixed an issue with a snagging wall on the inside of Turn 4.
[Legacy] Daytona International Speedway – 2008
– (Oval) – Fixed an issue with standing starts here.
