[REL] MAK-Corp Group C Community Update

Art_Pereira said:
Next, would it be possible to set the engines properly, WSC engine for WSC cars, and IMSA engine for IMSA cars. I never made a rF2 mod so I don´t know how to do this, but perhaps it would be easy to add and would improve how the cars look and drive in a more realistic way.
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Should be possible. However, having it open to choose is an advantage for online play imo.
 
7MeGZ5B.jpg

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We will finish off the rF2 year at RaceDepartment with a special event with the community mod the 29th of December. It will be the Shell Donington Trophy. And as a special event, it will be open for non-premium members, which means - free race :)
A good way to end the year: https://www.racedepartment.com/thre...-non-premium-incl-irl-race-watchalong.266704/
 
Hi boys and girls, it's been a while. As I am busy with a broken foot I thought it would be a good time to finaly pack the promised update and maybe help to bridge the time for the people suffering in anticipation of LMU. So the first post is updated with a DL link for version 1.3 of the Community-Update. Make sure to remove the old version before installing the new one. I also want to use the opportunity to forward a message from Petros that I recieved a while back on Racedepartement:
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Hello Tr1v1um.

I wanted to take a moment to thank you for your love and support to our team's Group C mod. I am Petros Mak the owner of MAK-Corp. I am simply contacting to say thank you for updating the mod and giving it continued life. If you would like, I'd be happy to replace the one on steam with your version and credit you guys for the update.

In any case, it's great to see people still enjoying our past work. Those were some very memorable days that the team and I had that pushed us into the commercial world. It's still a soft spot for all of us. It feels like the mod is still alive thanks to you and the guys you've brought in to help update it. Thank them also.

-Petros.
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In that sense I finaly also added my own Porsche skins to the rest of the Porsche pack to make it a bit easier to handle. I included the shader updates by @willyC. For them to work better I removed the baked AO-maps from the Sauber textures according to the development guidelines. I also inlcuded the windows files from @Art_Pereira for the Porsches and adjusted the LOD settings for all three cars with the hint from @Manfredk2. So thanks alot for your contribution. I will also send Petros a link to this version so that he can update the version on Steam workshop. Once that has been done I will add the link to Steam workshop to the OP. Have fun and stay safe. :)
 
@hitm4k3r I don't drive much "just for fun" anymore, so i don't have this installed and want to ask, if the Cars have working Wipers and Rain Effects on the Windows?
 
I thought I'd hop on here and mention the Green/Orange WSC Mazda's are coming up as unknown when joining a fixed setup server and topping out/max speed, a little over 300km/h down the Kyalami straight, versus 330-340km/h with the other Mazdas. I'm not sure if this was intentional, but it feels like a bug worth mentioning.

Besides this, it's a beautiful update to an already fantastic mod- see hot lap below!

 
Hello, first of all thanks for your interest in the mod and the updates. Sadly I haven't come around to do anything the last couple of months since I have been busy finishing university and working 40 hours a week infront of a PC. So I hope you can understand that I haven't spend alot of time at my PC. As said I won't promisse anything or give any time frames but I also won't say no to further updates. I have booted up my PC for the first time since December today so I hope that's a little step to get back in the loop :oops:
 
I understand, when you have the possibility I love this Mod!!, it will reflect improved mainly (AI), example for its braking when arriving at the stand... Le Mans, and maybe make an update to Steam... people are asking for it;)
 
Great mod BTW. But, we found that all the 962 cars have an issue with setting the Brake Map in the car set up. Whenever it is set to anything other than zero, the throttle takes off to max level as soon as you leave pits. We are leaving the 962 BM at zero for now because it's ok, but maybe the issue can be checked for future updates. Thanks
 
Peter Stefani said:
Great mod BTW. But, we found that all the 962 cars have an issue with setting the Brake Map in the car set up. Whenever it is set to anything other than zero, the throttle takes off to max level as soon as you leave pits. We are leaving the 962 BM at zero for now because it's ok, but maybe the issue can be checked for future updates. Thanks
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I found the problem, using Gemini AI. There are some errors in the engine files of the Porsche.
I replaced these lines :

RevLimitLogic=1
EngineBrakingParams=(3,250)
EngineBrakingLimit=(-28,-29,-33,-37.5,-41,-44.5,-48,-51.5,-55,-59.5,-63)
EngineBrakingMapRange=(0.0,0.025, 5.0)
EngineBrakingMapSetting=0
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with these:
RevLimitLogic=0
EngineBrakingParams=(2, 830)
EngineBrakingLimit=(-28,-29,-33,-37.5,-41,-44.5,-48,-51.5,-55,-59.5,-63)
EngineBrakingMapRange=(0.0, 0.015, 5)
EngineBrakingMapSetting=0
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I made Gemini compare the two engine files of the 962C with the engine file of the 787B and it suggested to use almost the same values of the Mazda in those lines. So now the engine brake works as in the Mazda. This is from Gemini:

Issue: Throttle Stuck at 100% when using Engine Braking Maps​

Affected Mod: Porsche 962C (Mak Corp Group C)

The Problem​

The issue was caused by a conflict between the EngineBrakingParams and the Turbo physics calculation in rFactor’s engine.
The original Porsche file used:EngineBrakingParams=(3, 250)The algorithm "3" is often used for turbocharged engines to calculate engine braking based on manifold pressure. However, in this specific mod, this calculation was broken. As soon as the user selected "Map 1" (or higher) in the garage, the physics engine would return an erroneous value, saturating the throttle input to 100% (full acceleration) even without touching the pedal.
Additionally, RevLimitLogic=1 was causing a feedback loop where the software-controlled limiter tried to fight the ghost-throttle, making the car completely uncontrollable.

The Solution​

To fix the bug without affecting the Turbo boost or the car's power delivery, we had to "decouple" the engine braking logic from the broken turbo-linked algorithm.
  1. Switching the Algorithm: Changed EngineBrakingParams to (2, 830). This uses the logic from the Mazda 787B (a rotary/naturally aspirated car in the mod), which calculates engine braking as a linear resistance rather than a turbo-pressure-dependent value.
  2. Disabling Rev Limit Logic: Changed RevLimitLogic to 0. This forces the engine to use a standard hard-cut limiter, preventing the physics engine from applying "maintenance throttle" that was interfering with the braking maps.
  3. Adjusting Map Scaling: The original 0.250 increment was a decimal error (25% throttle per step). We corrected it to 0.015 (1.5% throttle per step), which is the standard value to prevent rear-locking during downshifts without causing unintended acceleration.

Result: The car now retains its full Turbo characteristics (1.50 bar boost, lag, and power curve remain untouched), but the throttle mapping is now stable and the Engine Braking Maps work as intended.
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;)

I made a new package and I tried both the IMSA and WSC version of the 962C. No problems now.
Here's a link to the new rfcmp:
mega.nz

1.2 GB file on MEGA

mega.nz mega.nz

The folder has the same name/structure/number of the original. Give it a try and see if everything is working as supposed with the 962C.
Warning, I won't keep the file online forever.
I'll contact hitm4ker of course, so he can check and replace his package eventually.
 

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Last edited:
gianluca said:
I found the problem, using Gemini AI. There are some errors in the engine files of the Porsche.
I replaced these lines :


with these:


I made Gemini compare the two engine files of the 962C with the engine file of the 787B and it suggested to use almost the same values of the Mazda in those lines. So now the engine brake works as in the Mazda. This is from Gemini:


;)

I made a new package and I tried both the IMSA and WSC version of the 962C. No problems now.
Here's a link to the new rfcmp:
mega.nz

1.2 GB file on MEGA

mega.nz mega.nz

The folder has the same name/structure/number of the original. Give it a try and see if everything is working as supposed with the 962C.
Warning, I won't keep the file online forever.
I'll contact hitm4ker of course, so he can check and replace his package eventually.
Click to expand...
I replaced the ini files with in my own rfcmp file and the the mod seems to be working well. Thank you.
 
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