I got this off of GameFAQs: (excuse the glaring spelling errors)
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TVR Touscan Speed 6
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Parts:
Full Customizeable Suspension
Sports Brakes
Brake Balence Controller
Raceing Muffler
Computer Chip
Na Tune Up Stage 3
Port&Polish
Full Engine Balencing
Full Raceing Transmission
Stage 2 Lightweight
Carbon Driveshaft
Limited Slip full customization
2 plate clutch
Raceing Flywheel
Spring Rate: (f)8.6 (r)7.5
Ride Height (f)69 (r)69
Shock Bound: (F)6 (r)6
Shock Rebound (f)6 (r)6
Camber Angle (f)2.0 (r)1.0
Toe Angle (f)0.0 (r)0.0
Stabilizers (f)4 (r)4
Brake Balence (f)9 (r)12
limited slip initial (f)0 (r)5
accel: (f)0 (r)30
decel (f)0 (r)30
Gear Ratio
1: 3.771
2: 2.587
3: 1.910
4: 1.477
5: 1.196
6: 1.014
7: -----
Final: 4.002
ASM: 12
TCS: 5
Or alternatively, try these settings - everything as above except for the
following (for better handling):
Suspension
Spring Rate (f)11.8 (r)10.8
Ride Height (f)55 (r)55
Shock Bound (f)10 (r)10
Shock Rebound (f)10 (r)10
Camber Angle (f)1.0 (r)1.0
Toe Angle (f)0.0 (r)0.0
Stabilizers (f)5 (r)5
TCS: 9
For even more better handling:
Suspension
Spring Rate (f)7.8 (r)5.8
Ride Height (f)101 (r)94
Shock Bound (f)7 (r)7
Shock Rebound (f)6 (r)6
Camber Angle (f)2.0 (r)1.3
Toe Angle (f)0.5 (r)1.0
Stabilizers (f)7 (r)7
Brake Balance (f)9 (r)8
Limited-Slip Initial (f)0 (r)49
Limited-Slip Accel (f)0 (r)41
Limited-Slip Decel (f)0 (r)17
Gear Ratios
1) 4.869
2) 3.238
3) 2.226
4) 1.691
5) 1.325
6) 1.091
7) -----
Final: 2.738
ASM: 20
TCS: 9
Tuned by Dark Cloud Freak
... I personally have used these settings, and trust me, they're great! In fact, most of the settings at GameFAQs by Dark Cloud Freak are really top-notch. Enjoy!