BMW M3 GT4 car feels broken, can setup fix it?

[sotti]

So this car I do not understand.

Every other car when you come into a corner with a little too much speed you get understeer. Which is what I want. If I push too hard I want the front end to wash away.

With this car when I turn in, if I have too much speed I just flip ends. It's not even trail braking I can get to neutral throttle holding a line through a longer corner and if I dial in a little more steering angle, poof spin. It also tends to snap oversteer with too much throttle on exit, but at least with that I have a point of reference trying to modulate the throttle a little better.



I've tried maxing out the front springs, stiffen up the front ARB, removing the rear ARB, recalced the shocks with Jussi's calculator. This thing still feels like it's trying to kill me and I don't understand why.

[blinkngone]

So this car I do not understand.

Every other car when you come into a corner with a little too much speed you get understeer. Which is what I want. If I push too hard I want the front end to wash away.

With this car when I turn in, if I have too much speed I just flip ends. It's not even trail braking I can get to neutral throttle holding a line through a longer corner and if I dial in a little more steering angle, poof spin. It also tends to snap oversteer with too much throttle on exit, but at least with that I have a point of reference trying to modulate the throttle a little better.



I've tried maxing out the front springs, stiffen up the front ARB, removing the rear ARB, recalced the shocks with Jussi's calculator. This thing still feels like it's trying to kill me and I don't understand why.

Hey, you are not showing what platform you are on but I am assuming you are on console. Start with the Default Stable setup and make the changes to the LSD I have in this screenshot.

[sotti]

I'll give that a whirl, thank you.

Didn't know that platform mattered, but I am on PC using a Fanatec CSWv2.5. I've tried both the RAW FFB as well as the Jack Spade custom FFB. Both feel similar in regards to the issue I'm facing.

[blinkngone]

I'll give that a whirl, thank you.

Didn't know that platform mattered, but I am on PC using a Fanatec CSWv2.5. I've tried both the RAW FFB as well as the Jack Spade custom FFB. Both feel similar in regards to the issue I'm facing.

Ok, since you are on PC have you already tried the setups other people use for this car in Time Trial? That LSD I gave you is for lessening the oversteer on corner exit.

I have the same wheel as you with the V3 pedals. Normally you should be using Default Loose with a wheel but since you seemed to have more than 1 issue I suggested starting with Default Stable. You can use the same LSD settings on Default Loose.

[cpcdem]

I am not sure if I understood correctly, are you getting oversteer also on corner entry? If yes, I think it's when downshifting, right? Try putting the engine braking to 10, also give it some throttle while downshifting (it's an H-pattern shift car), or just use auto clutch on. For during the corner, I think blink's suggestion will do and of course as you said you need to modulate the throttle.

As for why this car is different to other GT4, that's because if I am not mistaken, it's a front engined car, so much weight in the front side, not so much in the rear, so it is easier for the rear tires to break loose..

[blinkngone]

I am not sure if I understood correctly, are you getting oversteer also on corner entry? If yes, I think it's when downshifting, right? Try putting the engine braking to 10, also give it some throttle while downshifting (it's an H-pattern shift car), or just use auto clutch on. For during the corner, I think blink's suggestion will do and of course as you said you need to modulate the throttle.

As for why this car is different to other GT4, that's because if I am not mistaken, it's a front engined car, so much weight in the front side, not so much in the rear, so it is easier for the rear tires to break loose..

In GT4 the only rear engine cars are the Cayman and X-Bow. You didn't drive it back when we running GT4s in the beginning at SilNat, I drove it once. Default Loose Engine Braking is at 5, 7 for Stable, it can go to 10 as you suggested. Using Default jammerjoh has a good recent run with it.

[cpcdem]

In GT4 the only rear engine cars are the Cayman and X-Bow.

Oops, good point
Thx, had not realized that.

Edit: I just run it now, I see what you guys mean about power oversteer, it's massive. Higher Power Ramp should take care of it indeed.

Edit2: Nah, put it to 90 degrees, but did not make a noticeable difference. But then I additionally lowered the rear height to minimum, and that has helped, made the rear much more predictable. @sotti, give this a try, change rear ride height to minimum, it should help a bit.

[Shepard2603]

You could also soften the rear as much as possible (ARB and springs) and then stiffen the front to get the understeer back.

[Bealdor]

You could also soften the rear as much as possible (ARB and springs) and then stiffen the front to get the understeer back.

The M3 GT4's default setups are already very US biased, suspension wise.
I wouldn't recommend to unbalance that even more to get rid of issues that are rooted somewhere else.

[blinkngone]

Oops, good point
Thx, had not realized that.

Edit: I just run it now, I see what you guys mean about power oversteer, it's massive. Higher Power Ramp should take care of it indeed.

Edit2: Nah, put it to 90 degrees, but did not make a noticeable difference. But then I additionally lowered the rear height to minimum, and that has helped, made the rear much more predictable. @sotti, give this a try, change rear ride height to minimum, it should help a bit.

Hey, lowering the rear would make the setup similar to the 320 TC which you used to race a while back. Good run with your adjustments.
320 TC ride height.