ACC In-game:
gain - 70%
min force - 0%
dynamic damp - 100%
road effects - 20%
These do look okay, although I don't really like the road effects higher than a few percent. They just add some noise into the ffb that seems like a generic noise, based on the surface category you're on. I prefer it as low as possible while still noticing when changing from one tarmac patch to the next with a slightly different roughness.
Gain at 70% is fine, ACC is pretty "clippy" at default so turning it down raises the dynamic, which I like with the CSW.
Dynamic damp is a cool thing. It helps getting closer to the real thing with a "beefier", "tighter" wheel on straights but as soon as you're becoming slower, the dampening will go away.
v2.5 wheel base:
Sen - 900
FFB - 100
Shock - 100
Abs - 90 (Just go easy on the brakes, the ABS WILL let you know you've activated it... Slowly come to a stop even after you're done with a session.)
Drift - Off
Force - 60
Spring - 50
Damper - 50
Brakeforce - (your own preference if you have v3 pedals or loadcell, I personally use 30)
F.EFF.INT - 20 (this is the most important one since the in game gain is set to 70% and your FFB is at 100, you only want this at 20, nothing more or less.)
Wow, yeah.. god awful, lol!
ABS: well it's just a vibration in your rim/v3 pedal at x-amount of brake input. I think 90% is okay, since you then get a vibration when close to 100% and lose the vibration when you went 10% down from the maximum.
Drift: off is just squishy. It's less resistance than a real car and you just can't drive cleanly due to NO basic resistance against turning.
I use -1 to -3.
Now it becomes awful:
force, spring, damper should ALWAYS be at 100!
If a game uses these direct inputs, you will 99,9% surely have a ingame setting to adjust it. Example: dynamic dampening, in AC and ACC hidden in the .ini files a "standing still damper" setting. In the Dirt games you have the "weight", which is part of the FFB!
force however is the direct input ffb, which is.. well it's the ffb. So lowering this is just the same as the ingame ffb.
Therefore, THESE TO 100 ALL THE TIME!
Brakeforce: yeah with a LC brake pedal, it's down to your own liking.
F.EFF.INT (FEI): I like it between 70-100 depending on the sim and the track. In ACC I mostly use 90 since 100 is pretty rough and feels too rough compared to AC, R3E, rF2 etc.
My normal setting (roughly, not home to check):
In-game:
gain - 80%
min force - 10%
dynamic damp - 100%
road effects - 50%
gain: it's okay, I personally use 65% to give more dynamic. At 80% you have a very saturated ffb without much headroom for little bumps during strong turns. Eau Rouge for example.
min Force: I'm not sure why you like this. 0-4%, I'm okay with. Some rattling on the straights, filling the "emptiness" etc. But at 10% I'm pretty sure you'll have a notch when passing the center position. Like a harsh border you hit, when doing a smooth chicane for example.
I would lower it to 4% and see if you can get happy with that.
It's to remove deadzones of wheels like the Logitech G27. Our CSW has no deadzone at all.
road effects: as I wrote above, I'd recommend staying below 10% to be able to distinguish between small bumps/grip details and the generic road noise.
v2.5 wheel base:
Sen - 900
FFB - 100
Shock - 100
Abs - 100
Drift - Off
Force - 100
Spring - 100
Damper - 100
Brakeforce - 100
F.EFF.INT - 100
Yep, that looks nice.
Although as I said, I'd recommend Drift at -1 to -3 to give some basic resistance you can "lean against" while turning in for example.
Without the resistance of the negative drift setting you might turn in too quickly into corners where you'd need to turn in slowly and carefully.
Your arms/hands simply have no resistance to turn against and therefore you don't "turn against something" but instead you "turn the wheel without resistance".
This means your body has to do a controlled movement in two ways. Turning the wheel and also slow down the turning if needed.
When you have drift mode at -1, your body will only have to do the turning. If your muscles stop to turn, the wheel will come to a halt automatically instead of your muscles having to slow down the wheel.
But if you set drift to -5 for example, the resistance will becomes too strong for fast chicanes where you do a lot of quick left/right.
So here are my exact settings:
In-game:
gain - 65%
min force - 3%
dynamic damp - 100%
road effects - 5%
v2.5 wheel base:
Sen - 900
FFB - 70 to 90 depending on track,car,dry or rain
Shock - mclaren rim, no schock
Abs - csl elite pedals without LC, no vibration
Drift - -1 to -3
Force - 100
Spring - 100
Damper - 100
Brakeforce - off, no LC pedal
F.EFF.INT - 90