Locost build - specifications

All Mazda MX5 components listed below are from a 2006 NC model, which is the third generation of the MX5 and all parts were of an updated design and not interchangeable with previous model MX5’s


Mazda 2006 NC MX5 MZR (Duratec) all alloy








Double overhead cam with variable cam timing

Valve train

Four valves per cylinder


Multi point fuel injection

Power at rpm

 118kw @ 7,700rpm

Torque at rpm

 188Nm @ 5,000 rpm


Custom built all aluminium by Aussie Desert Cooler

MX5 thermo fan and plastic shroud

Instrument cluster

MX5: speedo, trip, tacho, oil, water, fuel & current transmission gear


Whitepointer fibreglass custom sized & trimmed ADR 3/03 compliant


Mazda MX5 tiptronic six speed auto

Steering wheel paddle shift controls

T-bar shifter with manual shift option

Rear end

Mazda MX5, complete subframe with 5 link IRS suspension


Limited Slip, 4.1:1 (JDM - Japan Domestic Market)


Standard MX5

Pedal assembly

MX5 - brake assembly and fly-by-wire accelerator

Steering column

MX5, collapsible and adjustable for height

Steering wheel

MX5 with cruise control and paddle shifters for the auto

Suspension - front

MX5 stub axles, hubs and tie rod ends

Custom fabricated unequal length upper & lower wishbones

Adjustable rod ends on top inner wishbones

Mazda B2200 lower ball joints

Ford Transit Van tie rod ends for upper ball joints

Steering rack

Holden Gemini rack & pinion (unmodified)

Shock absorbers

GAZ (made in UK) adjustable coil overs


MX5 four wheel discs with ABS and power booster


 MX5 Ventilated rotors, 290mm


 MX5 280mm rotors


 MX5 including cabin lever and cables

Vehicle dimensions


Front track


Rear track




Overall length

3650mm (excluding spare wheel)

Overall width

1720mm (outer edge of rear mudguards)


1180mm (top of rollbar)

Ride height


Chassis dimensions

Compared to Ron Champion "Book" dimensions:

     130mm wider (1200mm wide under the seats)

     100mm longer in the cabin

     50mm longer in footwells

     50mm longer in engine bay

     25 mm higher from scuttle forward

 Fuel tank

40 litre custom fabricated aluminium with anti-surge baffles

Fuel pump

Standard MX5 in tank unit


MX5 10 spoke alloys, 17" x 7", five stud


Michelin 205/45 R17 84W