Build a Westfield (Mazda Sdv)

This article describes how to build the Westfield Sports car kit car model which is based on a Mazda MX-5 (also known as a Miata or Eunos in various markets).

Steps

  1. Locate donor vehicle. An MX-5 is required to provide the necessary donor parts. A crash damaged/insurance write-off will usually provide the cheapest option. Check the list under "Strip donor vehicle" to ensure the donor has all the necessary parts in un-damaged state. The kit provided by Westfield was originally intended for an NA model (pop-up headlights). Later models (NB and NC) can be used although some additional modification/steps will have to be made.
  2. Strip donor vehicle. The following items are required:
    • Engine and Gearbox - complete with inlet track & exhaust manifold and lambda sensor
    • Airbox and air flow meter and both pieces of pipe work and retaining clips and Airbox mounting rubbers
    • Complete wiring loom, Ecu, fuse boxes, dashboard switches, clutch pedal switch, sensors and relays (NOTE: Label every connection when disconnecting for ease of reconnecting)
    • Instrument panel cluster
    • Upper steering column including steering wheel, crash pad, indicator stalks, ignition barrel and key and top and bottom cowl
    • Lower steering column (needs to come to WSC for modification)
    • Diff and Casing complete with rubber mounting bushes and buffer plates
    • Rear uprights, hubs, discs and calipers including top upright rubber bush still fitted
    • Handbrake lever and cables, compensator and all fittings including retaining spring clips
    • Steering rack track rod end joints and nuts
    • Front uprights, hubs, discs and calipers
    • Wheels and tyres and wheel nuts
    • Propshaft (needs modifying but not by WSC)
    • Driveshafts including joints, lock nuts and hub nuts
    • Front bottom ball joints including castle nuts
    • Horns;
    • Cooling Fan
    • Side Repeaters
    • Fuel filter and bracket
    • Carbon Canister, pipe work and mounting bracket
    • Catalyst converter
    • Interior mirror
    • Screen washer bottle and pump
    • Battery and mounting tray including clamp and fixings
    • As many nuts, bolts and fasteners as you can save
  3. Label everything, especially wiring.
  4. Order a "Starter" kit. There are a number of options available. The following are recommended for new builders:
    • Powder coating chassis
    • Exterior panels
    • Fit riv nuts
    • Chassis stands.
  5. Collect "Starter" kit. Unless you have a lot of storage space it is recommended you do not collect the outer body. If the full kit is being collected, a van will be required, e.g. Transit. If the kit is being collected without the outer body, a large estate with roof rack can be used.
  6. Paint chassis. If the chassis was ordered without the powder coating option, the chassis will be in bare steel and will require painting with a good exterior metal paint.
  7. Fit body panels.
  8. Fit pedals
  9. Fit brake & clutch master cylinders
  10. Fit brake pipes
  11. Order "Completion" kit
  12. Collect "Completion" kit
  13. Fit fuel pipes
  14. Modify/fit rear wiring loom
  15. Fit rear suspension
  16. Fit differential, drive shafts & rear uprights
  17. Fit front suspension & uprights
  18. Fit steering rack
  19. Fit engine & gearbox
  20. Fit prop-shaft
  21. Fit air-box
  22. Fit steering column
  23. Fit radiator & fan
  24. Fit fuel system
  25. Fit handbrake
  26. Fit windscreen washer bottle
  27. Fit horn
  28. Fit tunnel top panels
  29. Fit seat-belts
  30. Modify/fit main wiring loom
  31. Fit bodywork
  32. Fit battery & battery tray

Things You'll Need

  • Tools Required:
  • Combination spanners: Metric & Imperial
  • Socket set: Metric & Imperial
  • Toque wrench: 0 to 100 lb ft, to 250 lb ft
  • Drill bits: 5/32”, 3/16”, 5.16”
  • Allen keys: Metric
  • Socket drive Allen keys: 6mm, 8mm
  • Circlip pliers: Internal & External
  • Taps: ½” UNF, M18 x 1.5mm
  • Hole cutters: 1¼”, 1½” (45mm), 2”
  • Pop riveter
  • Pipe bending tool
  • Riv nut fixing kit
  • Electric drill
  • 12" hacksaw
  • Engineering hammer
  • Centre punch
  • Hide hammer
  • G clamps: min 2
  • Bench vice
  • Screwdrivers: Flat & Phillips
  • File: Round & Flat
  • Tape Measure
  • Metal cutters
  • Consumables:
  • Copper Slip
  • Silicone Sealant