rFactor 2

rFactor 2

205 ratings
Group C Mod v1.1
File Size
810.792 MB
Dec 23, 2015 @ 11:37pm
Feb 7 @ 5:25pm
5 Change Notes ( view )

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Group C Mod v1.1

The 1991 Group C mod includes the Mazda 787B, Porsche 962C and the Sauber C11 in the latest version of the mod for rFactor 2. Featuring unique realistic physics for each vehicle as well as different tire compounds, this is your chance to get behind the wheel of the three most iconic racing cars in the history of Group C racing.


- 1991 Mazda 787B
- 1991 Porsche 962C
- 1991 Sauber C11
- Unique physics for each vehicle
- Unique engine sounds for each vehicle

Mod Resources

Templates: Download Click HERE[www.mak-corp.com.au]
MOD PDF MANUAL: Download Click HERE[www.mak-corp.com.au]


Join the MAK-Corp Steam Group Here
Visit our Website Here[www.mak-corp.com.au]


MAK-Corp Group C Mod v1.1
- Removed inside double skin 3d mesh for all cars bonnet glass - with new shaders since last update, is no longer needed.
- Fixed dark side windows on 787b, now looks like other cars.
- Animated wipers added to 962c and C11.
- All wipers are fully operational and clean glass etc.
- All windows for all cars re-exported with new uv for rain.
- Rain on all car bodies/banner has been added and water direction movement configured as well.
- Re-exported all car liveries with removed wiper shadows inside them because they now move and look wrong.
- Edited and re-saved the Templates pack with all car changes if templates are wanted by you guys.
- All cars have new backfire instead of old backfire - thanks s397.
- RPM light added to 787b.
- Lods made and added for all cars.
- Improved mirror mapping on all cars

Rain racing - Please disable reflections in-game when racing in rain due to reflections in wet weather not working correctly on windscreen areas outside of the wiper clean area and because these windscreens have a lot of non wiper area compared to most due to windscreen shape, therefore making it more visible.

Apologies for another template change, it was un-avoidable and had to be done to accomodate rain support properly.

Manual Documentation updated to v1.1.

All Cars - Added aerodynamic upgrades to force AI run different setups on certain tracks

Mazda 787B
- Revised slick tyre's grip loss on rain
- Revised heating of wet tyres on dry condition
- Revised clutch torque on shifter to avoid abuse on downshifts
- Revised grip on AI front tyres
- Revised FFB options on upgrades
- Removed blip sound while using shifter (again)

Porsche 962
- Modified WSC turbo hitch for better handling
- Revised fuel consumption for each turbo step on both engines
- Revised slick tyre's grip loss on rain
- Revised heating of wet tyres on dry condition
- Revised clutch torque on shifter to avoid abuse on downshifts
- Revised FFB options on upgrades
- Rob Wollek added to car #86

Sauber C11
- Increased drag and fuel consumption
- Reduced engine life and increased damage when revving over 7000rpm
- Increased dry tyres grip in the wet to be balanced against the other cars
- Improved AI drivers suspension and performance on different track conditions
- Revised FFB options on upgrades

- Improved interior engine sound L/R balance
- Updated Porsche 962 turbo sounds
- There are 4 exterior engine sound variants for Porsche 962 (1 for WSC, 3 for IMSA)


- Mod Production Manager: Petros Mak
- Mazda 787B 3D Vehicle by: Ionut Nicolaescu
- Mazda 787B 3D Vehicle Updates by: Dmitriy Barishev
- Porsche 962C 3D Vehicle by: Dmitriy Barishev
- UV Mapping Mazda 787B by: 1st set by: Bernd Boehm. Re-Mapped by: Lukasz Kacprzykowski
- UV Mapping Porsche 962C by: Juandi Sanchez
- 2D Textures by: Doug Parker, Nigel Phelan
- New Skins from v0.95 by: Arturo Pereira, Damian Baldi, Daniel Gomez
- In-Game Specialist: Liquid4653
- rFactor 2 Physics 787B, 962C by: Damian Baldi
- rFactor 2 Physics C11 by: Alvaro Perez
- Sounds by: Alvaro Perez


All vehicle brands, series brands, team and driver logos, liveries and other replications placed in this mod from the real season are proprietary property of their respective owners. All rights reserved. MAK-Corp does not have nor claim to have any affiliation with any brands, teams or drivers that are represented within this mod unless stated otherwise.

All aspects of this mod are copyrighted material of MAK-Corp and should not be used in any way, shape or form without express prior written permission from MAK-Corp Management. If you wish to use this mod for any reason, please contact us at accounts@mak-corp.com.au
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Wolke Feb 20 @ 3:31am 
not hotlapping, race. AI has clearly more grip. I am not the only one complaining :steamsad:
And its no matter of Turbo, i have read the (funtastic) manual ;), i am simply to slow :steamhappy:
opteron Feb 20 @ 3:16am 
For hotlaps make sure mixture or turbo boost is set to max. Anyway AI is very fast
Wolke Feb 14 @ 9:05am 
hm, what are you're laptimes in spa ? i am 4-6 secs off pace, AI/100% does 2:01, i always get caught in the corners.
ArthurFox Feb 11 @ 9:51am 
@Liquid4653 - many thanks for taking the time to check this out and report it.
Liquid4653 Feb 8 @ 1:10pm 
@ArthurFox - I can now conclude this is a bug, I will report this to Studio 397, thanks for bringing this to my attention Arthur;)
Liquid4653 Feb 8 @ 12:40pm 
@ArthurFox - no need to send me files, i have seen the behaviour you describe here despite the fact that the parts are correct, i think this is a bug in rF2, I have some other tests to confirm this, but thought I would update you asap
Liquid4653 Feb 8 @ 11:10am 
@ArthurFox - The rims and covers are identical on all the tyres types, the same part, for both rimA and rimB, the only thing changing graphically when you change tyre, is the tyre.

Are you talking about the tyre? I see you reference extra302 so know is rims but i have checked the animation stages for rims and covers and they are correct.

i presume you make for your own car skin, please pass me your 3x extra3 and wheelcap files to inspect please, and also, can you move this to the rfactor 2 forum thread rather than sort this out here;)
ArthurFox Feb 8 @ 7:43am 
(same with the wheel covers too - just tested) - with R500s/Yoko Dry, all three files are used. With any other tyres (R600/wets), only the 100/300 low-speed files are used.
ArthurFox Feb 8 @ 7:33am 
Hi there - many thanks for this...

I've noticed a minor issue with the wheel rims (962C Rim A no cover)...

The high speed .DDS file(s) (Extra302 in particular) only get activated with the default dry tyre choice (R500 or Yokohama). If I select either R600, Wet or Yoko Rain, the fast-blur files don't seem to load (I can tell as I've painted them different colours for now....)

Can you help?
[ODS]CedricH Feb 8 @ 6:51am 
Thanks for the update !
About the C11 engine, so there is no change except the engine wear?