Automobilista 2 Custom Force Feedback - Overview & Recommendations

rFuktor ? experimental 3.9.9.9.9.8

* "center_full" at 0.5, as recommended by @Terry Ayers
* Dynamically blend in more damping at low speeds

Let me know if this causes any issues.
If not we are ready for the "?" reveal.

 

i have tlcm

 

you make best custom files for ams2 period.

 

With tlcm pedals, you can't control your brake and throttle curves via software. Regardless, I would still reduce the brake and throttle sensitivity on these pedals. However, you do have the option to adjust your brake pressure with different springs to suit your needs.

The files are simply another option for people who aren't satisfied with the defaults. There are many good alternatives from various people, so everyone can decide for themselves what they want and what they don't.

 

I'm dying to know what this infamous '?' means

 

Ahh, yes, THE REVEAL... HERE WE GO!


✨ The rFuktor ? Experimental Series – The Journey Ends Here ✨

Over the past months, you’ve seen a few unusual file names appear:

rFuktor ? Experimental 3.9.9.9.9.8
rFuktor ? Experimental 4.0.....
…and other variations with the mysterious “?”

The “?” was our way of keeping the final goal under wraps while we gathered feedback and explored new directions.

What you’ve been trying in those “?” versions has, at its core, been something quite different:
not just another tweak to the old file, but a full rewrite of the core — keeping the rFuktor spirit, but rebuilding the structure to allow more flexibility, smoother transitions, and a stronger connection to what’s happening in the car.

It’s been a community effort in the best sense.
Ideas have come from many people, tested and refined over countless laps.
Some features stayed, others were replaced, but each iteration brought us closer to a file that feels natural, responsive, and balanced across a wide range of cars and wheel bases.

Now, after all those steps, the “?” era has come to an end.

AND FINALLY, THE BIG REVEAL…
(continues in the next post)

 

THE REVEAL

The mystery is over.
The “?” has a name.

You might have guessed it… and of course, it had to be:

rFuktor2
- A tribute to Eddie de Beer & Friends (@Eddie de Beer)

Note: rFuktor2 is its own creation — the name is just for fun and does not indicate any connection to, or attempt to replicate, the force feedback feel of another sim.

This file is dedicated to Eddie de Beer, and, in spirit, every “Eddie” out there — those who pushed lap after lap until life called them out of the cockpit, but whose passion for racing never stopped.

It’s also a thank-you to the sim racing community — from curious newcomers to seasoned hardcore racers, from tuners and modders to setup sharers and race hosts. You’ve all helped make our virtual tracks come alive.

And thank you to those of you who helped, directly or indirectly, lifting this file to this level, you know who you are!

From Experimentals to rFuktor2
Across the “?” experimental series, we tried, tweaked, and tested countless ideas — discarding what didn’t work, refining what did.
What you have here in rFuktor2 is the result of that process: a completely rewritten core, with these developments carried forward and polished:

• Clearly separated force calculations for front and rear — improving clarity in how load and slip are communicated.
  
  
• Refined slip & grip logic with peak slip angle calculations for more accurate, progressive feedback at the limit.
  
  
• Much improved oversteering feel — smoother build-up, more controllable slides, and better sense of rear rotation.
  
  
• Weight-on-cornering feedback that scales naturally with load transfer, helping you judge balance mid-turn.
  
  
• Longitudinal and lateral weight transfer feedback that scales naturally with load transfer.

• Tire stretch modelling for both front and rear, adding a subtle “elastic” feel under heavy lateral forces.
  
  
• Sliders fully usable in the 0–100% range (LFB, FX, damping, gain) — offering real tuning freedom.
  
  
• New ABS effect for better braking feedback when anti-lock activates.
  
  
• New rolling tire effect using a multi-frequency pattern that responds dynamically to speed and steering.
  
  
• Improved load control for high-downforce cars so steering weight remains consistent at any speed.
  
  
• More detailed suspension sensation with both front and rear suspension modelled distinctly.
  
  
• Reduced response delay — forces now react faster to changes in grip, load, and steering inputs.

• Downforce-aware load scaling that keeps cornering feel sharp without making the rack too heavy at speed.
  
  
• Cleaner integration of FX (scrub, tear, engine, flatspots) so they blend naturally without spiking.
  
  
  It's been a lot of fun - again - thank you.
  
  
  (No explanation of the small addition that has been added to the final file)

(edit: re-uploaded the file as a slight last minute change caused a very minor bug, so if you downloaded when this message was not there, do it again.)

 

Is this rFuktor 2 V1.0 ????
Or V1.0.0.0.0.0 ?

 

WOW!! You, sir, have just taken ffb to a whole new level. Kudos!

 

close topic XD

 

only registered to say massive THANK YOU to Karsten Hvidberg. Ive been playing ams2 for the last year with moza r5, tried default, default+ and various custom files, since there was always something that felt off (some of it probably due to r5). i hate using inertia, frictions, and damping outside the game itself, as everything in my moza pithouse is max linear or turned off completely to not mess with the game ffb output. been testing all these 3.9.9.9.9.x versions recently and was surprised how good they felt with linear pithouse settings across different cars. i also have like autistic level of need to have it just perfect, so the adjustability in in-game ffb sliders are so much appreciated! cannot wait to try the last version today! btw i also spent much time with danielcart custom file, but without heavy adjusting in pithouse (natural inertia, FX equalizer) it was not drivable with my r5 (aggressive vibrations, clipping). Thanks once again, and for everyone involved!

 

Hi all. I post here my last big job on ffb custom for Alpha Evo 12. I wrote in the beginning of the file the settings need to be applicate in AMS2 to enjoy my file. Cheeers )

 

Dear friends. This is Eddie's wife and I shall be typing below verbatim his words to you. Briefly, from me, Eddie has been captivated by computer racing for more years than I can remember and, despite "never good enough to compete with Jim Clark and Jackie Stewart" (his childhood heroes), this "wonderful community" (his words) is a frequent point of discussion. He always talks admiringly of the joy that it brings to read the posts from so many people around the world, of the professional manner that Karsten displays, never becoming angry at those who are rude, having no idea how much time he puts into this. So, here is Eddie's message to you (forgive me any errors!).

"Dear Karsten. I am deeply touched by your kindness, and feel humbled to be mentioned by you, the wizard that makes this game so enjoyable to play. Ams2 has grown so much over the years but for so many of us, was never quite able to provide the force-feedback to compliment all its visual strengths. I therefore eagerly anticipated the ffb updates that you have provided for more than five years. Significant also, is the time you take to provide meticulous descriptions and change logs so that any-one could pick up where they had left off, or advice to an endless stream of new users, taking the time to direct them to the applicable point in this 500 page document, and even asking on their behalf for settings for their respective wheelbases. Amazing!

The joy that your tireless and generous contributions have provided can never be underestimated. I cannot begin to imagine how many hours you and so many others have sacrificed entirely for our benefit and enjoyment. My wife will be the first to thank you, honestly, for the good mood I was in after new improvements to the feel and feedback on my wheel .

The words "thank you" can never be enough. May you now have more time actually to race and enjoy your own creation, justifiably proud of the fruits of your labour. God bless and best wishes to you and everyone in this community. Eddie de Beer"

 

I tried this on a race last night and a couple of other cars quickly on time trial and was really impressed! Please could you share any detail on what attributes the FX slider is adjusting, and how the damping slider is working in this version? Is it "compressing" the signal amplitude or something else? Many thanks for your work

 

As the full range of all valuesis usable for your file, is the recommended starting point 50-50-50-50 and then adjust? Is there something you would start higher/lower with for a low-end wheel?

 

Here are the details for FX slider:

FX Slider | Engine Scale | Tear/Scrub Scale | Suspension Scale | Tire Scale | Engine FX Stops At
-----------------------------------------------------------------------------------------------
0.00 | 0.20 | 1.00 | 0.00 | 0.00 | 50 km/h
0.10 | 0.60 | 1.00 | 0.50 | 0.50 | 65 km/h
0.20 | 1.00 | 1.00 | 1.00 | 1.00 | 80 km/h
0.35 | ~1.05 | ~1.05 | ~1.15 | 1.00 | 80 km/h
0.50 | 1.10 | 1.10 | 1.30 | 1.00 | 80 km/h
0.75 | 1.20 | ~1.35 | ~1.45 | 1.00 | 80 km/h
1.00 | 1.30 | 1.60 | 1.60 | 1.00 | 80 km/h

The damping slider does not compress the signal. It is a regular dampener to fight oscillations, if you don't like them, at the cost of a slightly dampened steering, which can also feel nice.

The lfb slider adds lfb and will compress downforce(but only at very high lfb setting)
At lfb slider at 100%, it only does actual low force boost at 10%. However at that setting it restricts downforce cars severely. At 50% it will not impact high downforce cars by a whole lot.

Very high gain will still impact downforce compression as well.

 

My own settings are:

force: whatever feels good on the straight, driving fast, will depend on the strength of the wheel base.
fx: 10% (anything 0-20% feels ok on my base)
lfb: 15% (anything 0-100% feels ok on my base)
damping: 0% (I personally like it anywhere 0-15%)

For a low-end base, I would use:
LFB: at least 50%, likely try 75%.
FX: possibly 10%-50%.
Damping: I am not sure, so try 0% and try 30% and go from there.

 

After some break I returned to AMS2, to test latest custom files.
Trends seems to be not changing at all:
1. Simagic wheels still has a lot of noise and super exaggerated 'tire' effects. Which makes feeling ridiculous. Every corner with whatever speed/load/grip I bring into it - I catch myself with a thought 'what the hack it wants to simulate here with those vibrations?'
2. All custom profiles feels like they pretend to convert Logitech G25 into Simucube Ultimate. Forces are insanely boosted. For example I always run my base with 100% Gain and max torque in SimPro Manager, but adjust Gain in game. For Default+ profile I run around 28-30 gain in game. With this preset I stopped at 18... And is still wants to brake my wrists during snappy oversteer.

Anyway after few hours spend with testing I can recommend next settings for Simagic users.
# Tested at Donington GP with M4 GT4 and Cayman GT4.
In game settings:

Damping at 25 is the lowest setting that can finally handle insane oscillation that is happening on straight line with hands off the wheel.
FX - I tried going 10, 20, 30... More kurb details finally goes into the wheel, that feels a bit missing at 0, but counter steering effect tries to brake my wrists even more. So, FX 0 - this is the way (c)

SimPro Manager settings:

Friction at 2% seems wierd, yet it makes a difference. Going to 5% will ruin it.

The best thing about this custom profile is progression and control of the oversteer, if your wrists survived initial phase of it. It doesn't have unrealistic inertia of the steering wheel, that tends to over rotate. Makes power slide properly controllable and predictable.

 

Karsten, thanks for the V2.0 - it seems to be the best 'grand total/finale' of all the versions and bit and pieces of changes.

One issue that remains with AMS2 is how they ALLOW huge slip angles as the optimal and a driver needs some way to FEEL the use of that. With no (or very little) steering force reduction on rear wheel slide you lose the ability to feel and uttilise it fully/properly.... plus seeing the visuals are showing you clearly that there is a lot of rear slip angle, I guess your brain creates the overall outcome that 'something is wrong - visual versus feelings' and that is why you feel that the car is a 'hover car'. More so in the rear end than the front end. (probably not at all from the front end)
So that was why I always added a LOT of extra 'rear grip loss feel', to provide that missing FEEL for the rear end.
But in V2.0 the values, or names, are changed.... and after a bit of an investigation it did not seem that any of the given values (and tracking their use in formulas etc) achieve that same result.

So in TONS of ways the FFB information is very good - so many of the varied car situation/cases have information that seems quite well suited. Even with the rear grip loss feel missing, or is it just lacking(?).
The Front Grip Loss Feel is a variable that is never used.....

(oversteer_scale 1.0)
(oversteer_add_after_peaksa 1.5)
Seemed to be new values to do the rear grip loss feel(?), but even with very big numbers it doesn't seem to do much.
And the "peaksa" idea, to separate the low and high end of that feel seems a good idea - but where is it even used? I might have to dig deeper and look harder!

Some (most it seems?) people don't care about this, but it is impossible to drive a car in "REAL-TIME" without real-time DATA. Which in a sim mainly means FFB data (and X amount of visual data, and X amount of sound data - both which are lacking in full information transfer). So the only way to utilise the rear end slip angle is by PARROT FASHION.... just by repetition to learn what is OK or not. Not by truly KNOWING, via feeling, what the rear end is doing at all times then and there.

I will have to investigate more, to see what is exactly being done or not.....
If need be I can always patch in some V3.9.9.9.9.9.9.9.9.5.6.4.3 grip loss feel code to add that functionality, LOL.

 

Try setting engine scale to 0, tire scale to 0 and maybe you don't like tearing on understeer, so set the tear scale to 0 as well.
It would be good to know what is causing the weird buzzing you get.