CarX Builder
C3

Touge · RWD

LFL C3 touge

LFL (Lexus LFA)

by Shield · published on 11/11/2026 · 5 views

Use as a base

259

Power

1041

Weight

282

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)
259
Rev limiter (rpm)
8012
Low torque (Nm)
281
Mid torque (Nm)
294
High torque (Nm)
261
Fuel
Sport
Peak power (HP)
259 @ 7250 rpm
Peak torque (Nm)
296 @ 5000 rpm
Powerband (dyno)
5750 – 8012 rpm

Chassis

Weight (kg)
1041
Front weight balance (%)
50
Center of mass height (inches)
10.4
Wheelbase (m)
2.6
Front track (m)
1.58
Rear track (m)
1.58

Tires

Front tires
265/25 R19
Rear tires
265/25 R19
Front tire grip (index)
1.08
Rear tire grip (index)
1.08

Aero

Drag coefficient (Cx)
0.28
Air Resistance (Sx)
2.04
Front downforce (kg)
49
Rear downforce (kg)
55

Gearbox

Number of gears
6
Default final drive (ratio)
3.7
Default last gear (ratio)
0.8
Gear spacing
Standard

Spec sheet

Installed parts

Engine

S02

  • Block BLC [P] Low torque : 281 N·m Prototype
  • Camshaft CSH3_high High torque : 261 N·m Racing
  • Cylinder head HCE4_high Mid torque : 294 N·m Ultimate
  • ECU ECU [P] Rev limiter : 8012 rpm Turbo pressure : 0.56 bar Prototype
  • Exhaust EXS [P] Prototype
  • Exhaust manifold EXM3 Racing
  • Fuel system Leave stock Stock
  • Intake manifold INT [P] Peak RPM : 8169 rpm Prototype
  • Turbo Leave stock Stock

Gearbox

T50S

  • Gearbox Leave stock Stock
  • Clutch CLH [P] Prototype
  • Differential Leave stock Stock
  • Drivetrain Leave stock Stock

Body

Stage 4

  • Weight reduction Weight reduce [P] Prototype
  • Body strengthening Body strengthening ST5 Elite
  • Front aero Front aero [P] Prototype
  • Rear aero Rear aero [P] Prototype
  • Fuel tank Leave stock Stock

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 265/25 R19 Ultimate
  • Rear rims 265/25 R19 Ultimate
  • Front tires Racing Racing
  • Rear tires Racing Racing
  • Front spacers Leave stock Stock
  • Rear spacers Leave stock Stock
  • Tyre compound Racing+ Racing
01

Transmission

Final drive 3.17
Gear 1 3.33
Gear 2 2.32
Gear 3 1.93
Gear 4 1.61
Gear 5 1.34
Gear 6 1.12

Gear ratios and final drive calculated by the Build Lab for this discipline.

02

Differential

Accel lock 0.6
Decel lock 0.55
Preload 75Nm

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

Differential part not declared: values computed and bounded for a Clutch 65 (locks 0 to 1, preload 0 to 520 Nm). With a Clutch [P], sliders go from 0.6 to 1 (acceleration), 0.3 to 1 (coast) and 0 to 100 Nm. With a Clutch 45, from 0.2 to 0.8 and 0 to 315 Nm. Ranges with every tuning step purchased. Declare your part in the form for values you can surely set.

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.

03

Suspension

Front

Stiffness 81.5kNm
Suspension travel 91.6mm
Anti-roll bar 57kNm
Slow bump 6489
Fast bump 3244
Slow rebound 9144
Fast rebound 4608

Rear

Stiffness 98.4kNm
Suspension travel 100.8mm
Anti-roll bar 37.4kNm
Slow bump 7125
Fast bump 3534
Slow rebound 10133
Fast rebound 5080
04

Steering, camber & toe

Caster 5.05°
Steering angle 52.75°
Ackermann 67.33%
Braking 64% AV
Front camber under load estimated -4.37°

Car resting on its wheels, standing still (static load, no roll or load transfer). In game, set -6.62° in the garage.

Front camber (garage setting) -6.62°
Rear camber under load estimated -1.22°

Car resting on its wheels, standing still (static load, no roll or load transfer). In game, set -4.17° in the garage.

Rear camber (garage setting) -4.17°
Front toe 0°
Rear toe 0°
05

Aerodynamics and weight reduction

Front downforce 49kg
Rear downforce 55kg
Drag coefficient (Cx) 0.28
Frontal area (Sx) 2.04m²
Mass towards the front 50.22%
Mass height 15.97%
Body mass 765kg
06

Brakes and tyres

Max brake torque 8550N·m
Front tyre pressure 3bar
Rear tyre pressure 3bar
07

Gearbox: extras

Reverse gear 3.58
Shift delay 0.04s
Transmission loss 0.02
Calculation details & input data

Theoretical top speed

274.7 kph

Max speed (aero drag)

281.8 kph

Powerband

5750 → 8012 rpm

Gear 123456
Top speed per gear (km/h) 92133159191230275
Power
259 hp
Weight
1041 kg
Class
C3 (248.8 HP/t)
Front balance
50 %
Rev limiter (rpm)
8012
Wheelbase (m)
2.6 m
Center of mass height (inches)
10.4 inches
Front
265/25 R19 · 1.08
Rear
265/25 R19 · 1.08
Front/rear frequencies
2.7068673497282 / 2.9585970132095 Hz
Target roll gradient
0.049°/g · TLLTD 60.4 %
Engine curves

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