Forza 2: tuning a RWD car

[Huffer]

Ok so I have this sweet little AE86 that's now an S-class car but I'm having trouble getting the rear to stay relatively planted coming out of a turn.

any tips or suggestions for suspension or tire pressure settings? I am running a softer setting on the RSB, and the rear camber is at -1.8, zero toe.

[)2edline]

what kind of power are you running, it must be alot to push S-class.

Some smaller cars just aren't meant for S-Class =\

Alot of Dampening on the rear perhaps?

[Mr. Sociable]

Unless the outsides of the rear tires are overheating, take out some of that rear camber. Also, I've found that to find a balance on some high powered lightweight cars, I almost have to run the rear full soft on everything because they weigh so little. That said, what feels balanced isn't always the fastest. :wink:

[ScaryFatKidGT]

Some smaller cars just aren't meant for S-Class =\
sadly this is true a lot of cars just don't offer big enough tire sizes for the power you can get out of them.

I'll tune a car up and post some more up later I'm not really familiar with that car in high HP.

but to start its not a Subaru or awd I would keep the RSB at defaults unless you have experimented around and got a setting you like. (don't just drop the rear stiffness down and think it will help a lot)

Also how the front and back alignment affect each other is more important than just the rears set up alone, don't run to much rear camber just make sure its like .2-.3 degrees more negative than the front. I'm assuming you have the max tire size and compound, what is your tire pressure at? I would drop the front to 29 and the back to 28 or 27 until they start to over heat then don't go lower. Increase the rear down force in comparison to the front down force (do this before the tire pressure because increased down force causes tires to heat more)

Main thing I can think of turn your rear diffs acceleration setting DOWN to like under 20 this will help a lot, you will lose a very little amount of acceleration right off the line but it will help the rear end from sliding out around corners and you will also have a little more warning before it slides out, when its set higher as soon as the "lock" of the diff kicks in the back end just takes off side ways.

In RWD's
under 200hp a LSD is not needed
200hp-around 450hp LSD helps a lot
450hp and more both wheels are going to spin regardless so as long as you have a LSD set somewhere between 5 and 20 its going to take off from a stop ok but the wheels will spin unless you hold back on the throttle. (exception to purpose built sports cars and ones with huge tires on the back like the the Porsche GT2 running 325's on the back stock)

[ScaryFatKidGT]

OK so the problems your back camber set it between -0.8 and -1.0

I put in the 3s-GTE I'm running 451hp and 430ld-ft torque on 225/30R17 race tire compound

29 psi front
28 psi back (could go 27)

GEARS
FD 3.30
1-2.9
2-1.99
3-1.52
4-1.22
5-1.02 (or 1.03)
6-.88 (depending on down force track and top speed desired)

ALIGNMENT
-0.6 front camber
-0.8 rear camber (tried running .9 and 1.0 but liked this the best)

0 front toe
-0.1 rear toe (helped a lot)

caster at stock setting

front anti-roll 9.07
left the rear stock

SPRINGS
front 317.7
all the rest stock (I tried lowering the front ride high but it affected turn in so i left it stock)

DAMPING
front 6.7
rear 5.9

bump stiffness
front 3.2
rear 2.8 (lowering helps from sliding if you bump the side of the track and max out your suspension travel)

AERO
I found either
90 front
110 back
or
95 front
120 back To be good but(mess with as desired

BRAKING
balance 51%-52% front
pressure stock

DIFF
rear
accel-25
decel-30

hope fully that helps I didn't do to much changing just a little in the right spots.

[Plays_with_Toys]

Some things that helped me tune my hatchi roku... Raise the car. If you have it slammed, bring the height up. Then soften the suspension. These super light cars need weight shift for stability.

If you set your rebound damping high in the rear, it'll help keep the tires planted as well, because the suspension won't want to raise back up. Lots of downforce. If as you start to soften the setup, the car loses its turn in, then just give the car some front toe out.