CarX Builder
C4

Touge · AWD

34R C4 touge

34R (Nissan Skyline GT-R (R34))

by Rev · published on 13/11/2026 · 5 views

Use as a base

309

Power

1032

Weight

292

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)
309
Rev limiter (rpm)
8003
Low torque (Nm)
247
Mid torque (Nm)
256
High torque (Nm)
254
Turbo pressure (bar)
0.39
Fuel
Sport
Peak power (HP)
309 @ 6941 rpm
Peak torque (Nm)
346 @ 5668 rpm
Powerband (dyno)
6517 – 7790 rpm

Chassis

Weight (kg)
1032
Front weight balance (%)
58
Center of mass height (inches)
7.7
Wheelbase (m)
2.726
Front track (m)
1.54
Rear track (m)
1.54

Tires

Front tires
265/25 R20
Rear tires
265/25 R20
Front tire grip (index)
1.08
Rear tire grip (index)
1.08

Aero

Drag coefficient (Cx)
0.3
Air Resistance (Sx)
2.04
Front downforce (kg)
44
Rear downforce (kg)
46

Gearbox

Number of gears
6
Default final drive (ratio)
3.108
Default last gear (ratio)
0.8
Gear spacing
Standard

Spec sheet

Installed parts

Engine

DT25

  • Block BLC [P] Low torque : 327 N·m Prototype
  • Camshaft CSH [P] High torque : 333 N·m Prototype
  • Cylinder head HCE [P] Mid torque : 385 N·m Prototype
  • ECU ECU [P] Prototype
  • Exhaust EXS [P] Prototype
  • Exhaust manifold EXM [P] Prototype
  • Fuel system EFS [P] Prototype
  • Intake manifold INT [P] Peak RPM : 8146 rpm Prototype
  • Turbo Leave stock Stock

Gearbox

T50S

  • Gearbox GBT [P] Prototype
  • Clutch CLH [P] Prototype
  • Differential Clutch 65 Ultimate
  • Drivetrain Leave stock Stock

Body

Stock

  • 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 265/30 R18 Elite
  • Rear rims 265/30 R18 Elite
  • Front tires Racing Racing
  • Rear tires Racing Racing
  • Front spacers W +0.1 Ultimate
  • Rear spacers W +0.1 Ultimate
  • Tyre compound Racing+ Racing
01

Transmission

Final drive 3.11
Gear 1 3.49
Gear 2 2.31
Gear 3 1.88
Gear 4 1.53
Gear 5 1.24
Gear 6 1.01

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

02

Differential

Front

Accel lock 0
Decel lock 0
Preload 91Nm

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

Rear

Accel lock 0.85
Edited Calculated : 0.6
Decel lock 0.7
Edited Calculated : 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: Clutch 65 (declared).

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 148kNm
Suspension travel 91.8mm
Anti-roll bar 65kNm
Edited Calculated : 81 kNm
Slow bump 11711
Fast bump 5894
Slow rebound 16904
Fast rebound 8370

Rear

Stiffness 135kNm
Edited Calculated : 145.5 kNm
Suspension travel 100.3mm
Anti-roll bar 54.6kNm
Slow bump 10456
Fast bump 5228
Slow rebound 14901
Fast rebound 7480
04

Steering, camber & toe

Caster 5.03°
Steering angle 53.35°
Ackermann 85%
Edited Calculated : 73.48 %
Braking 65% AV
Edited Calculated : 71 % AV
Front camber under load estimated -2.76°

Car resting on its wheels, standing still (static load, no roll or load transfer). In game, set -5° in the garage.

Front camber (garage setting) -5°
Edited Calculated : -6.62 °
Rear camber under load estimated -1.2°

Car resting on its wheels, standing still (static load, no roll or load transfer). In game, set -4.12° in the garage.

Rear camber (garage setting) -4.12°
Front toe 0°
Rear toe 0°
05

Aerodynamics and weight reduction

Front downforce 44kg
Rear downforce 46kg
Drag coefficient (Cx) 0.3
Frontal area (Sx) 2.04m²
Mass towards the front 55.44%
Mass height 12.9%
Body mass 1418kg
06

Brakes and tyres

Max brake torque 7566N·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

292 kph

Max speed (aero drag)

292 kph

Powerband

6517 → 7790 rpm

Gear 123456
Top speed per gear (km/h) 94141174213263292
Power
309 hp
Weight
1032 kg
Class
C4 (299.4 HP/t)
Front balance
58 %
Rev limiter (rpm)
8003
Wheelbase (m)
2.726 m
Center of mass height (inches)
7.7 inches
Front
265/25 R20 · 1.08
Rear
265/25 R20 · 1.08
Front/rear frequencies
3.4345832129006 / 3.7969044971187 Hz
Target roll gradient
0.046°/g · TLLTD 54.3 %
Engine curves

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