So as many of you most likely have realized how fh4 physics differ from fm7 and fh3. All of my tunes have either extreme oversteer or extreme understeer.
My current car im working on that ive had no success with is the Koenigsegg one:1 my tune was able to get quite high on leaderboard times on both fh3 and fm7 beating almost anyone in any car of similar standards. But in fh4 the car has horrid understeer. Anything over 150 mph and i have to fight with the car. Ive been reading the in game descriptions and using my previous tuning knowledge but its just not getting better.
So here are my 2 tune values ive been working on, 1st one is from fh3 and fm7 the second is my current attempt at remedying my issues
1ST tune
Tires
F 26.5
R 26.5
Gears are fine
Alignment
Camber
F -2.0
R -1.0
Toe
F 0.2
R 0.0
Caster 5.0
Arbs
F 15.75
R 22.37
Springs
F 644.3
R 998.1
Height
F 2.9
R 4.1
Damp
F 13.5
R 15.7
F 9.6
R 10.8
Aero
F 339
R 461
Brakes are fine
Diff
A 70
D 45
2ND tune
Tires
F 27.5
R 26.5
Gears are fine
Alignment
Camber
F -3.0
R -1.5
Toe
F 0.3
R 0.0
Caster 5.5
Arbs
F 39.95
R 49.47
Springs
F 812.8
R 1083.1
Height
F 2.7
R 4.0
Damp
F 7.0
R 17.5
F 5.0
R 16.0
Aero
Lowest setting for both
Brakes are fine
Diff zero for both
Are you sure the brakes are fine? Because in FH4 the slider is reversed from what is intuitive: Moving the slider to Rear, you’d think the bias was towards the rear brakes and help you break traction in a hard braking turn, but in FH4 this instead locks up the front brakes and causes understeer.
Brakes normally have equal stopping power. Turn off ABS and slam the brakes down hard, all four tires lock up and skid.
When you use Race brakes, you can adjust the pressure between the front and rear brakes so that one set will lock up while the other keeps rolling and providing traction. If you go hard on the brakes before making a turn, you may want to have the rear brakes lock up just a little so the rear end skids a bit to make the car turn faster.
On that first tune I would bring the caster up just a bit to help with the car turn in, also I would add a little bit of front spring to ensure the caster change would not make the back end snap around on you. Just my 2 cents worth.
From what I’ve seen on the first setup, no matter, what car it is, I expect the rear to be swinging left and right on higher speeds. You have a really stiff rear axle. Are you sure, that this is correct (so and so vs. not at all)?
I know what you mean by extreme oversteer and the car sliding this way and that way. I think the rear may be really stiff ( game says that a soft front and stiff rear should be really oversteer prone but its not). Lemme try softening the rear by alot.
Koenigsegg one:1
Controller
Essentially a goliath tune but i just needs good turn in and sharp cornering above 180 mph. In fh3 and fm7 i could make the thing take any corner i want. In fh4 it either doesnt turn and just plows through the corner or it turns but much slower then it should.
27
27
F camber-1.8
R camber-1.9
F toe 0.0
R toe -0.1
Caster 5.8
Arb 19.3
Arb 15.8
Springs f 352
Springs r 647
Rebound f 5.8
Rebound rear 7.1
Bump 3.2
Bump 6.1
Brakes however you like them everyones different
Diff 40%/10%
Diff 60%/10%
Split 60-65
This is a solid base tune give it a whirl might hate it or love it took me forever to type this lol
