CarX Builder
C1

Drift · RWD

Drift

NX5С (Mazda MX-5 Miata Cabriolet (NA, 1990))

by Kaiko · published on 04/10/2026 · 266 views

Use as a base

131

Power

994

Weight

219

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)
131
Rev limiter (rpm)
7200
Low torque (Nm)
131
Mid torque (Nm)
134
High torque (Nm)
130
Fuel
Sport
Peak power (HP)
128 @ 6988 rpm
Peak torque (Nm)
179 @ 1000 rpm
Powerband (dyno)
6614 – 6988 rpm

Chassis

Weight (kg)
994
Front weight balance (%)
52
Center of mass height (inches)
13.9
Wheelbase (m)
2.273
Front track (m)
1.416
Rear track (m)
1.432

Tires

Front tires
185/50 R15
Rear tires
185/50 R15
Front tire grip (index)
1.02
Rear tire grip (index)
1.02

Aero

Drag coefficient (Cx)
0.3
Air Resistance (Sx)
2
Front downforce (kg)
27
Rear downforce (kg)
30

Gearbox

Number of gears
5
Default final drive (ratio)
4.1
Default last gear (ratio)
0.81
Gear spacing
Standard

Spec sheet

Installed parts

Gearbox

T50 NX5C

  • Differential Welded Sport

Wheels

  • Tyre compound Street Street
01

Transmission

Final drive 4.201
Gear 1 3.15
Gear 2 1.89
Gear 3 1.33
Gear 4 1
Gear 5 0.81

Gearbox: T50 NX5C (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

Differential: Welded (declared).

Your differential (Welded) is welded: it is always locked, with no setting. It is the natural choice for drift. In grip, it understeers in tight corners.

03

Suspension

Front

Stiffness 48.8kNm
Anti-roll bar 11.1kNm
Slow bump 4700
Fast bump 2400
Slow rebound 9400
Fast rebound 5900

Rear

Stiffness 45kNm
Anti-roll bar 9.2kNm
Slow bump 4300
Fast bump 2200
Slow rebound 8700
Fast rebound 5400
04

Steering, camber & toe

Caster 8.52°
Steering angle 68°
Ackermann 82.16%
Braking 100% AV
Front camber -5.09°
Rear camber -4.3°
Front toe -0.019°
Rear toe 0.235°
Calculation details & input data

Theoretical top speed

219.1 kph

Max speed (aero drag)

219.1 kph

Powerband

6614 → 6988 rpm

Gear 12345
Top speed per gear (km/h) 61102144192219
Power
131 hp
Weight
994 kg
Class
C1 (131.8 HP/t)
Front balance
52 %
Rev limiter (rpm)
7200
Wheelbase (m)
2.273 m
Center of mass height (inches)
13.9 inches
Front
185/50 R15 · 1.02
Rear
185/50 R15 · 1.02
Front/rear frequencies
2.2 / 2.2 Hz
Target roll gradient
0.14°/g · TLLTD 54.6 %
Curves extracted from the screenshot

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