First one up as promised, hope you enjoy -
Audi R18 TDI (Audi Sport Team Joest) '11
Tyres
Racing Hard
Suspension
Ride Height - 60/60
Spring Rate - 18.64/19.28
Compression - 4/4
Extension - 3/3
ARB - 4/7
Camber - 1.0/0.5
Toe - -0.05/+0.55
BB - 3/0
Gearbox
Top Speed - 211 mph (Geared long)
Limited Slip Differential
Initial Torque - ~/12
Acceleration Sensitivity - ~/26
Braking Sensitivity - ~/16
Downforce
Full downforce both ends (don't know the exact figure, not by my PS3 right now).
Unlike other tuners on GTP, for every setup I post, I will tell you exactly how I came to it. I started off with the knowledge that LMP's are twitchy buggers, no matter what you do to them, so my first job was to get rid of the snap oversteer. The usual fix for this is the 'understeer setup' - harder on the front, and softer on the rear, with some toe-in added at the back. After working with these settings for a while, I felt that it was constantly on the edge of spinning. It continued to find grip, yet it felt too unstable for my liking at high speed. I upped the rear toe to +0.50, as I felt this was not affecting understeer too much and could be increased. As it still felt too prone to letting go, I thought I would try to work an 'oversteer setup' onto the car, as I thought an overly soft rear end would cause too much of an imbalance through high speed sections. This reduced low speed grip slightly, yet increased the high speed grip and stability hugely. The settings listed above are what I concluded at the end of this test.
A hard rear ARB is the immediate fix for a snappy rear end, this is because the soft spring settings, whilst generating grip, are affected too much by quick movements. The hard roll bar prevents the quick weight distribution from becoming too pronounced upon the springs. I decide to run full downforce on all my cars, as I feel it aids cornering stability and lap times more than a high speed setup would. The naturally low top speed of the R18 also means reducing the downforce would not affect straight line speed compared to other cars. The brake balance was settled on after I discovered a large amount of the cornering instability was caused on entry, because of the rear brake balance. I decided to remove all rear brakes, and the car now enters corners with confidence.
As always with LMP's, steady throttle control and is required to keep it from spinning. This setup is primarily designed for high speed tracks, but a steady right foot (or thumb) will prevent most problems.
