CarX Builder
C3

Touge · RWD

Soarer C3 touge

TSR

by Shield · published on 16/09/2026 · 402 views

Use as a base

251

Power

1006

Weight

273

Max speed (aero drag)

Inputs

Values used for the calculation

The car data entered for this build. Enter the same values to get the same setup on your car.

Engine

Power (HP)
251
Rev limiter (rpm)
8655
Low torque (Nm)
309
Mid torque (Nm)
309
High torque (Nm)
252
Fuel
Sport
Peak power (HP)
251 @ 7066 rpm
Peak torque (Nm)
306 @ 4733 rpm
Powerband (dyno)
5899 – 8466 rpm

Chassis

Weight (kg)
1006
Front weight balance (%)
53
Center of mass height (inches)
15.5
Wheelbase (m)
2.715
Front track (m)
1.37
Rear track (m)
1.37
Front wheel spacer (cm)
33
Rear wheel spacer (cm)
33

Tires

Front tires
265/30 R18
Rear tires
265/30 R18
Front tire grip (index)
1.08
Rear tire grip (index)
1.08

Aero

Drag coefficient (Cx)
0.3
Air Resistance (Sx)
2.02
Front downforce (kg)
38
Rear downforce (kg)
38

Gearbox

Number of gears
6
Default final drive (ratio)
3.11
Default last gear (ratio)
0.8
Gear spacing
Standard

Spec sheet

Installed parts

Engine

S02

  • Block BLC [P] Prototype
  • Camshaft CSH [P] Prototype
  • Cylinder head HCE [P] Prototype
  • ECU ECU [P] Prototype
  • Exhaust EXS [P] Prototype
  • Exhaust manifold EXM [P] Prototype
  • Fuel system EFS [P] Prototype
  • Intake manifold INT [P] Prototype

Gearbox

T50S

  • Gearbox GBT [P] Prototype
  • Clutch CLH60 Ultimate
  • Differential Clutch [P] Prototype
  • Drivetrain RWD Ultimate

Body

CBW

  • Weight reduction Weight reduce [P] Prototype
  • Body strengthening Body strengthening ST5 Elite
  • Front aero Front aero [P] Prototype
  • Rear aero Rear aero ST5 Ultimate

Suspension

  • Front springs F_SS [P] Prototype
  • Rear springs R_SS [P] Prototype
  • Front shocks F_S [P] Prototype
  • Rear shocks R_S [P] Prototype
  • Front anti-roll bar F_SB [P] Prototype
  • Rear anti-roll bar R_SB [P] Prototype
  • Front arms F_ARM [P] Prototype
  • Rear arms R_ARM [P] Prototype
  • Brakes BR [P] Prototype

Wheels

  • Front rims 265/30 R18 Elite
  • Rear rims 265/30 R18 Elite
  • Front tires Racing Racing
  • Rear tires Racing Racing
01

Transmission

Final drive 4.497
Gear 1 4.06
Gear 2 2.3
Gear 3 1.6
Gear 4 1.25
Gear 5 1
Gear 6 0.8

Gearbox: T50S (declared by you, in the form or when sharing).

Your gearbox ratios are kept and only the final drive is adjusted, so the last gear reaches top speed at the top of the power band. This is not an optimal gearing: in our simulations on the game's tracks, no other rule does demonstrably better, whatever the discipline. Not validated in game.

Gearbox recalculated on 2026-09-25: corner exit speed and target top speed are no longer used, and the final drive stays within the game's slider range. The proposed ratios, and the differential that depends on them, may differ from those shown before.

02

Differential

Accel lock 0.6
Decel lock 0.3
Preload 56Nm

Values computed for your car and kept within the sliders of your differential (a Clutch 65 if none is declared).

Differential: Clutch [P] (declared).

Tyre compound not declared: rear lock computed for a Racing compound. With a less grippy compound (Street, Sport), the minimum is lower. Declare your compound in the form.

Stability first: the rear must never let go before the front. Preload keeps the inner wheel from spinning over a bump at the throttle you hold through a typical corner (computed from aero and tyre drag) and keeps the lock smooth between throttle and lift-off. Acceleration lock adds only what is still needed so the inner wheel doesn't spin up to 60 % of your lateral grip: on a rear-wheel drive car, more would push the rear out (in-game hint). Coast lock is half the acceleration lock (1.5-way), gentle so the car doesn't rotate when slowing down.

Acceleration lock: this is the minimum of your part (Clutch [P]). The calculation asked for less. Above the need, the car understeers more on throttle (in-game hint).

03

Suspension

Front

Stiffness 70.2kNm
Anti-roll bar 26.1kNm
Slow bump 7100
Fast bump 3500
Slow rebound 14300
Fast rebound 8900

Rear

Stiffness 76.3kNm
Anti-roll bar 15kNm
Slow bump 6300
Fast bump 3300
Slow rebound 13100
Fast rebound 11100
04

Steering, camber & toe

Caster 5.08°
Steering angle 50.35°
Ackermann 70.21%
Braking 80.8% AV
Front camber -2.11°
Rear camber -3.86°
Front toe 0.05°
Rear toe 0.109°
Calculation details & input data

Theoretical top speed

273.3 kph

Max speed (aero drag)

273.3 kph

Powerband

5899 → 8466 rpm

Gear 123456
Top speed per gear (km/h) 58102147188235273
Power
251 hp
Weight
1006 kg
Class
C3 (249.5 HP/t)
Front balance
53 %
Rev limiter (rpm)
8655
Wheelbase (m)
2.715 m
Center of mass height (inches)
15.5 inches
Front
265/30 R18 · 1.08
Rear
265/30 R18 · 1.08
Front/rear frequencies
2.5099800796022 / 2.7658633371879 Hz
Target roll gradient
0.063°/g · TLLTD 63.5 %
Curves extracted from the screenshot

You may also like

Full gallery →

Build your own setup

Gearbox, differential, suspension and alignment computed for your car and discipline. In under 2 minutes.

Create my account

Build Lab · New

Pick a car and a class. Get the whole build.

Engine, parts and every setting, computed for you from a class and a driving style. No dyno screenshot needed.

Build my car for free

One Build Lab build free on every account.

See how it works

CarX Street touge tune: gearbox, suspension and differential