rFactor 2 | Large GT3 BOP Update Released

Paul Jeffrey

RaceDepartment Editor-in-Chief
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Studio 397 yesterday evening released a new BOP update and physics tweak to the 13 GT3 cars available within the simulation.
  • BOP performance updates applied.
  • Tweaks to sliding behaviour.
  • Updates to aero draft issues
Studio 397 last night released a new updated for the full GT3 collection of cars within rFactor 2, adding a number of physics tweaks and balance of performance modifications to the category in a bid to further close up the performance differences between the cars, and address some balance issues that have been reported within the category in recent weeks.

As well as the usual BOP updates, the new builds also contain changes developed in order to resolve an issue where cars would lose excessive grip when following closely within the slipstream of another driver, and also changes have been made to reduce the ability for a driver to excessively slide the car in order to gain additional laptime advantage.

rF2 GT3 Middle.jpg


GT3 BOP Update Notes:

Aston Martin Vantage GT3 v1.87

  • BoP adjustments: +5kg weight penalty, -1% engine power.
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Default setup: -1 to rear wing.
  • Recalculated fuel consumption.
Audi R8 GT3 2018 v1.89
  • BoP adjustments: -20kg weight penalty.
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • P4 is new default the rear wing,
  • Adjusted drivetrain losses (resulting in slightly more engine power on the wheels).
  • Adjusted aero drag.
  • Default setup: P4 rear wing, +1 to front and rear ARB, +0.352deg to rear toe in, +2 to TC, +14 to differential preload, -0.5deg to rear camber, +1 rear springs.
  • Recalculated fuel consumption.
Audi R8 GT3 2019 v1.61
  • BoP adjustments: -20kg weight penalty.
  • Adjusted total inertia, tweaks to default setup to make the car more stable.
    New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • P4 is new default the rear wing.
  • Adjusted drivetrain losses (resulting in slightly more engine power on the wheels).
  • Adjusted aero drag.
  • Default setup: P4 rear wing, +1 to front and rear ARB, +0.352deg to rear toe in, +2 to TC, +14 to differential preload, -0.5deg to rear camber, +1 to rear springs.
  • Recalculated fuel consumption.
Bentley Continental GT3 2020 v1.23
  • BoP adjustments: -20kg weight penalty.
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Adjusted drivetrain losses (resulting in more engine power on the wheels).
  • Adjusted aero drag, about 0.5% forward aero balance shift.
  • Default setup: +1 to TC.
  • Recalculated fuel consumption.
Bentley Continental GT3 2017 v2.89
  • BoP adjustments: +2% engine power.
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Fixed damper travel to bump stops (15mm more on front and 11mm on rear).
  • Increased maximum packer stack to 40mm.
  • Tweaks to inertia and center of gravity.
  • Readjusted aero balance and drag.
  • Lower (slower) steering rack ratio.
  • Adjusted differential locking rates.
  • Default setup: brake bias F54.2%, differential preload 120Nm.
  • Recalculated fuel consumption.
BMW M6 GT3 v1.79
  • BoP adjustments: +10kg weight penalty.
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Adjusted drivetrain inertia (resulting in slightly less engine power on the wheels).
  • Adjusted aero drag.
  • Recalculated fuel consumption.

Callaway C7 GT3-R v3.01
  • BoP adjustments: +10kg weight penalty, -1% engine power.
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Default setup: +1 to default rear wing.
  • Recalculated fuel consumption.
Ferrari 488 GT3 v1.45
  • new values for draft lifts (FW, RW and diffuser).
  • modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (means, less speed gain when drafting).
  • Adjusted aero drag.
  • Recalculated fuel consumption.
McLaren 650S GT3 v2.85
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Adjusted drivetrain losses (resulting in more engine power on the wheels).
  • Rebalanced aero balance and drag.
  • Fixed incorrect damper travel to bump stops.
  • Default setup: P4 rear wing.
  • Recalculated fuel consumption.
McLaren 720S GT3 v1.75
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Adjusted drivetrain losses (resulting in more engine power on the wheels).
  • Adjusted aero drag.
  • Fixed incorrect damper travel to bump stops.
  • Recalculated fuel consumption.
Mercedes AMG GT3 v2.95
  • BoP adjustments: -10kg weight penalty,
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
    Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • adjusted drivetrain losses (resulting in more engine power on the wheels).
  • Rebalanced aero balance and drag.
  • Default setup: +1 to TC, P10 rear wing.
  • Recalculated fuel consumption.
Porsche 991 GT3 v1.75
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Adjusted drivetrain losses (resulting in less engine power on the wheels).
  • Rebalanced aero balance, drag and rear downforce between rear wing and diffuser.
  • Adjusted center of gravity height and chassis inertia.
  • Fixed issue with damper travel to bump stops.
  • Default setup: P11 rear wing, +1 to TC, +2 to front and rear ARB, 0.117deg to front toein, +0.352deg to rear toe-in.
  • Recalculated fuel consumption.
Radical RXC GT3 2017 v2.85
  • New values for draft lifts (FW, RW and diffuser).
  • Modifications to yaw aero response (affects sliding sideways).
  • Tweaks to diffuser stalling parameters (the car is less snappy now, when bottoming out).
  • Reduced slipstreaming effects on drag (lower speed gain when drafting).
  • Rebalanced aero balance and drag.
  • Recalculated fuel consumption.


Original Source; Studio 397

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rF2 GT3 Footer.jpg
 
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Well, this is good, but what about updating also the interior of the cars to match the superior
visuals quality of the Ferrari and the Bentley? There is a big difference among these 2 cars
and the old ones - an update should be addressed here.
 
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This! And how about fixing the missing stripe on the Porsche GT3 wheel that was reported as a bug over a year ago?
The stripe is not filled in as supplied by the factory. Individual teams place their own color of stripe, The cars supplied from the factory don't have the stripe and thus the photos used for detail don't show a stripe. Silly, I know, should have been addressed ages ago. Just like the continuing snafus with the two Aston's steering wheel numerals displaying incorrect information, or the right hand side American flag on the Two factory Corvettes being displayed backwards.
 
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The stripe is not filled in as supplied by the factory. Individual teams place their own color of stripe, The cars supplied from the factory don't have the stripe and thus the photos used for detail don't show a stripe. Silly, I know, should have been addressed ages ago. Just like the continuing snafus with the two Aston's steering wheel numerals displaying incorrect information, or the right hand side American flag on the Two factory Corvettes being displayed backwards.
The Flag apparently had to be flipped the way they are now during approval, dont ask me why, but that has been said by somebody from S397 on discord
 
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The stripe is not filled in as supplied by the factory. Individual teams place their own color of stripe, The cars supplied from the factory don't have the stripe and thus the photos used for detail don't show a stripe. Silly, I know, should have been addressed ages ago. Just like the continuing snafus with the two Aston's steering wheel numerals displaying incorrect information, or the right hand side American flag on the Two factory Corvettes being displayed backwards.

The right hand side of the American flag on the corvette is supposed to be displayed backwards or the stars of the American flag is to be facing forward of the car.

It is a customary for some American organisations to do so, like US military , NASA or even Corvette.

 
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The right hand side of the American flag on the corvette is supposed to be displayed backwards or the stars of the American flag is to be facing forward of the car.

It is a customary for some American organisations to do so, like US military , NASA or even Corvette.


I know its a bit off topic, but what if the flag was on a pole and the wind changed direction?...

On a more relevant note, excuse my ignorance, but does the BOP effect the GTE Class?
 
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I know its a bit off topic, but what if the flag was on a pole and the wind changed direction?...

On a more relevant note, excuse my ignorance, but does the BOP effect the GTE Class?
No, the similar BOP for GTE cars was done several weeks ago. The only reason we bring up the flag issue, is there is an entire Summer's worth of photos showing the actual cars racing with the stars facing forward at actual tracks during actual events.
 
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Considering how they are going with physics do you really think they should touch ISI cars? If they do let it be only graphics please....
clearly yes, S397 has made a big step forward on physics compared to isi, we have to put an end to the old cars made in isi that slide as if on ice in every corner...

really good update with GT3 nice job! :thumbsup:
 
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idk, the new updates weren't downloaded by steam for me...hmmm...any ideas how to force the upgrades? Thanks
same here, and I've used both the release candidate (intended for mass testing) and the full Web based UI that is the default now. I cleared out the Steam download cache, that did not help. (I also had to look up my Steam info to log back in.)

edit: I got the downloads to work by unsubscribing to all my GT3 DLC in Steam. Exit Steam, reload Steam, start rF2 and the downloads worked correctly.
 
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