Help un-understeer my S4

[gibson]

My Audi S4 won't over steer, it just keeps going strait when i want it to turn. settings are as follows:
Race exhauste
s2's
Race brakes
brake controller set to 6 at front and 10 at rear
race suspention set to:
10.9/12.0-spring rate
99/110-ride height
3/4-bound
5/4-rebound
0.0/0.0-camber
0/0-toe
7/7-swaybars
3 plate clutch
no aids
F/C LSD set to
25/20-initial torque
40/15-accel
30/30-brake

any help to get it to be oversteery, but not too oversteery would be awesome.

 

[mafia_boy]

Is that the '98 or the '03 S4??

If it's the '98 version, here's a tune courtesy of MFT. Apply to your car and have fun.

MFT Audi S4R tune!!

Otherwise, looking at your current settings the main problem is that you're transmitting too much power bias to the front wheels. I'd say go along these lines to soften the car up and get it a bit that rear end a bit more snappy first.

Spring Rate: 7.3/6.8
Ride Height: 100/100
Damper Bound: 3/2
Damper Rebound: 5/4
Camber: 1.7/1.2
Toe Angle: 0/-2
Stabilisers: 4/4

LSD: F: 10/14/12 R: 16/20/18

That should help get you some more tail action, and then finetune from there. So you have two options......MFT's proven tune & my on the spot Grease Monkey tune-up. Have a play and see how you go.

Oh, and change the tyres to S3's for that cornering improvement.

 

[gibson]

I'm saving for S3's, I drift best with them.

Edit: Tried your settings, and I still understeer. Should I just cut my losses and buy a FR?

 

[Rotary Junkie]

Try this, but keep in mind it's entirely off the top of my head with no real grounding so it may just make everything worse. It'll either screw you over or make you happier, one of the two...

Spring Rate: 9.5/5.0
Ride Height: 120/100
Damper Bound: 3/2
Damper Rebound: 7/7
Camber: 2.3/0.0
Toe Angle: 0/0
Stabilizers: 5/1


Dunno about the diffs but start with Mafs' stuff and maybe crank the front accel-side up a bit if you have issues with the inside front lighting up (and with the added camber that's probably going to be somewhat likely).

Also, under the weight balance/ballast tab...

Balance: 50
Ballast: 0

Theoretically this should get the car to overload the rears and incite a bit of oversteer. If not it'll just make it more of a pig.

 

[Leonidae]

ooh, free commercials! S4R should be good for power over. if you really want the rear-end to snap around, raise the rear ride height on level or above the front.

 

[gibson]

The question is, will the 360 hp I have and your suspention, LSD, and brake tune for the '98 work on the '03 the way i want?

 

[Leonidae]

they're pretty similar to each other. I tested this myself, and it does work really well.

 

[gibson]

Thanks, I'll have to try it out, now if only I could find my gameshark dish.
EDIT-It's a ton and a half better, but still can't beat the lap times of my old under powered FD, my best on special stage 5 in this was about 1:43 in this and 1:39 in the FD

 

[mafia_boy]

I'm saving for S3's, I drift best with them.

Edit: Tried your settings, and I still understeer. Should I just cut my losses and buy a FR?

Was the understeer worse or better though?? And another thing is your driving style may have something to do with it too. Just a suggestion. Also, how did the RRV on the spot tune go??

Leo - I'm always happy to give you all plugs depending on your weapon of choice. I'm just churning away developing my little garage before it's release inbetween the 400km/h challenge. One person, Two Divisions, 20 cars.......you work out how much tuning work I've been doing.

 

[gibson]

Same. I switched to MFT's S4 tune, and the car feels really neutral, so i lowered the front to 120 and rear to 127, and i has a little tail drag, but nothing else. I'm hitting all the apexes like I should be, and the car will take it if you don't hammer it. Now if you hammer it, it feels almost spongy, it refuses to over steer or under steer, it hits its marks, but not as well as a FR.

 

[Leonidae]

you should leave the fron as it was and just raise the rear end. lowering the front end in a car that has engine in the front will cause more understeer. since it sort of shifts the CoG forwards.

 

[sukerkin]

Leo, isn't it more that dropping the nose raises the roll stiffness of the front-end and moves the Centre-of-Rotation?

Raising the rear-end is certainly a way of inducing oversteer by drawing up the rear roll-centre.

Looking at the OP set-up tho', my first impressions are that I'm not surprised it understeers. Zero camber, too stiff stabalisers (both ends but especially the front), dampers too soft, front diff too stiff ...

The IS4 I have has a VCD set to 23 which helps a good deal and the LSD is 6/18/12 || 12/30/26 but she also has the Chassis Stiffness modification which makes direct comparisons a bit tricky .

 

[mafia_boy]

Oh 🤬, that's what I forgot....the VCD. Been too busy on tuning FR's & FF's so no need for VCD's with them.

sukerin's 23 is fair enough. I'd even go less.....somewhere between 15-20 should do the trick. 👍

 

[gibson]

I doesn't understeer with my ride height, its neutral, it only understeers when I don't have the tires warmed up

 

[Parnelli Bone]

My Audi S4 won't over steer, it just keeps going strait when i want it to turn. settings are as follows:
Race exhauste
s2's
Race brakes
brake controller set to 6 at front and 10 at rear
race suspention set to:
10.9/12.0-spring rate
99/110-ride height
3/4-bound
5/4-rebound
0.0/0.0-camber
0/0-toe
7/7-swaybars
3 plate clutch
no aids
F/C LSD set to
25/20-initial torque
40/15-accel
30/30-brake

any help to get it to be oversteery, but not too oversteery would be awesome.

Simple. Get rid of the limited-slip. Put harder tires in the rear. Get a VCD and give it as full a rear-drive bias as you can. You shouldn't need LSD at all unless you're off-road, or using lots of power. Other than this, you can experiment with settings others have posted already. But trust me: you don't need a limited-slip with this car (or many other AWD cars in GT4) and a combo of S2's (front) and S1's (rear) will start you in the right direction.

The real-life Audi S4 has its engine mounted transversely as though it's a front-drive car; the quattro is based on the front-drive version of the A4. So it'll be very hard to get oversteerish action (especially under power) but you can try to get it sideways by flinging it into corners hard. I've done this.

Overall, if you want more oversteer in GT4, you'll have to eventually switch to a rear-drive car.

 

[Leonidae]

Actually, both S4's use real Torsen AWD's, just like the Passat of that gen since they're based on same platform, and the engines are LONGITUDINALLY mounted. Even in the Passat.

 

[Parnelli Bone]

Actually, both S4's use real Torsen AWD's, just like the Passat of that gen since they're based on same platform, and the engines are LONGITUDINALLY mounted. Even in the Passat.

Yup, you're right. I just looked it up at Carfolio.com like i should have last nite. Longitudinally mounted they are.

 

[mafia_boy]

I doesn't understeer with my ride height, its neutral, it only understeers when I don't have the tires warmed up

Ummm.......that's BECAUSE the tyres aren't warmed up yet. You never see any car get perfect handling on cold tyres and if they get good handling on cold they usually get worse from that point on which means the settings will be off!!

 

[gibson]

now how do i get it to oversteer?

 

[mafia_boy]

Umm........read Parnelli's post 5 post's up. Combo of tyres for a start. Go for N2's &/or N3's for drifting IMO. Fit VCD and turn it down to a minimum. Use the same settings Rotary Junkie or I posted up earlier and try again!!

 

[Parnelli Bone]

now how do i get it to oversteer?

I don't think you can, other than a few moments where you force it by flinging your car into turns. Of course, there may be some extreme drifter here who will prove me wrong, but he or she will be a God...an exception to the rule.

All i've ever been able to do in an S4 is (as i said) a few moments of forced, sideways motions.

 

[Parnelli Bone]

Then again, check out what i wrote about the S4:

In GT4 on the other hand, the Audi S4 (the lesser A4 got dropped) feels a bit less manageable than it does in earlier games, especially on any of the normal tires. Here, the S4 is prone to slipping, oversteer, and can easily spin as weight gets transferred from rear to front. The brakes in this game are extremely effective (almost too effective) so the brake controller is recommended earlier on in the 4th game.

Apparently, i was talking about oversteer with normal tires, tho...not sports. And it also sounds like weight transfer is needed to initiate oversteer...which is what i was saying earlier about "throwing the S4 into corners."

 

[veyron1001]

My Audi S4 won't over steer, it just keeps going strait when i want it to turn. settings are as follows:
Race exhauste
s2's
Race brakes
brake controller set to 6 at front and 10 at rear
race suspention set to:
9.0/12.0-spring rate
105/110-ride height
3/6-bound
1/8-rebound
1.5/0.3-camber
-2/1-toe
2/6-swaybars
3 plate clutch
no aids
F/C LSD set to
5/10-initial torque
lowest/10-accel
lowest/15-brake

any help to get it to be oversteery, but not too oversteery would be awesome.

try the settings that I have changed