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£ 16,500

Westfield SEiW - Sprint/Hills race car



We have for sale on behalf of a customer a well know and competitive Westfield on the UK Sprints and Hill.

Developed over the last 5 years to show that a rotary powered car can be reliable and competitive it has certainly excelled in both of those areas.  Campaigned for 3 years in NA form the last 2 years the car has run the Turbo charged setup you see in the pictures.

Built to a very high standard, the car has never failed to finish an event entered and is one of the most reliable cars running it the Modified Specialist Production Class.

The car is a common class winner, picking up countless 1st in class trophies (I count around 25 in the cabinet) across both sprint and hill venues in the UK.  The car also has 3 FTD's to it's name (At the venues where the single seaters cannot run) and holds the outright lap record at Rushmoor Sprint (48.20).  It has even managed to pick up some silverware at Gurston (Dropping into the 32's) which hosts an incredibly specialisied and competitive class, the car truly is flexible across the venues in the UK, you have a shot at class honours at any event you choose to enter.


Tech specs:

1996 Westfield SEiW - Sprint/Hills race car

Road Registered with log book Q plate (Currently SORN)

MSA Log book



Mazda 13B-MSP R3 rotary engine

Borg Warner EFR 7670 turbo

Turbosmart Wastegate (7 psi spring, 12psi max) other springs supplied if you want to go big!

Custom S316 Exhaust Manifold and Silencer (98dB)

Adaptronic 440 Select ECU

Innovate LC-2 Wideband

Innovate SSI-4 sensor interface

Custom upper intake manifold with cable throttle body conversion

BMC OTA carbon airbox/filter

AliCool custom radiator/intercooler setup

Custom Alicool oil cooler top mounted

Wiggins clamp custom water hard pipes

Full silicone intercooler and hard pipes for intake

Mazda RX8 6-speed gearbox

Racing Beat light Aluminium flywheel

Exedy heavy duty clutch

4.44 Quaife CWP sierra viscous LSD diff (rebuild 8 sprints ago)

4 corners have wheel speed sensors for traction control, traction strategy currently unconfigured.

Anti-Lag launch control

Launch control selectable

Boost Map selectable

Full AN braided oil and coolant lines throughout



Modified Westfield SEiW to accept the 13B engine and box mounted as far back as possible

Full Caged Laser certified roll cage

Full carbon/kevlar sandwich composite floor, structurally bonded to the chassis

Full carbon sandwich interior closure panels, structurally bonded to the chassis

Pre-Preg Carbon flared sides

Pre-Preg light nose cone

Lightweight fibregalss tub, bolt on rear arches (a little worn on the leading edges) .

Removable rear tub on carbon/ali pins.

Full carbon rear diffuser

Pre-preg carbon front splitter

Carbon front arches (A little beaten up)

Standard bonnet adapted for the intake wrapped black vinyl (it's yellow, don't ask)

Second custom bonnet with very large V8 scoop also available, bit tatty but would clean up well.

Carbon Bubble Screen

Plumbed in fire system (needs service for MSA events this year, can service if preferred)

Schroth HANS harness, replaced last year so good few more years in date for competition (4 years to run)


Full Siltech front and rear micro adjust wishbones and ARB's... almost brand new (3 events)

Two way adjustable protech shocks all round, Siltech valving and spring rates... almost brand new (3 events)

Siltech billet front uprights and steering arms.

Close Tolerance AN bolts used throughout suspension where possible


Willwood 4 pots all round

Tilton fluid reservoir

Girling master cylinders on bias pedal box (Locked out for sprinting will come with adjuster)

AP solid two piece discs front (lightweight)

Siltech drilled discs rear (lightweight)


4 x Force Racing 3 piece billet rims with nearly new Pirelli Ultra Soft Slicks 13x10 rear 13x9 front

4 x Compomotive ML with well worn Avon A15 slicks 13x9 rear 13x8 front

4 x Unbranded ML style with well used Wets 13x9 rear 13x8 front

Fuel system:

Custom sprint tank (6.5 litres)

Custom fuel module with 330lpm aeromotive stealth pump

Aeromotive fuel filter

Turbo Smart FPR 3000

AN8 braided hose throughout


Full DR-25 raychem heatshrink harness throughout

Circular connectors for engine and front/rear sub-harnesses

Race Technology DASH-4 pro steering wheel dash

TE power relay for master cut-off

Custom H-Bridge motor driver (For APV control of the RX8 engine)





Keyword Search Terms:

Westfield, Sprint, Turbo, Rotary, Hill Climb, Caterham


Seller: samnorthy
  Sam North
Seller's other ads
Country: United Kingdom
City: Tarporley, Cheshire
Phone: +44 7779731669
Currency: GBP
Condition Used
Trade or Private: Private
Price: £16,500
Added: 01/06/2021
Views: 4620
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