Jump to content

1998 Westfield SEW Aerorace, 530kgs, 221bhp

Recommended Posts

1998 Westfield SEW Aerorace - road going competitive sprint, hillclimb and trackday car
A rare opportunity to buy a fully developed, competition ready Westfield that is also fully road going and a pleasure to drive.  You can bimble along the roads at 3,000 rpm with the exhaust popping and crackling, or you can go to any track day and be the fastest car there, or turn up to a competitive sprint or hillclimb event and win.
Lightweight Aerorace chassis built in 1998, fully stripped and rebuilt in 2015. Chassis is 10% lighter than standard and comes with additional bracing throughout.
Road registered with 12 months MOT
MSA logbooked (enables the car to compete on list 1C tyres if desired)
Recent racing achievements:
I am a beginner to any form of motorsport so in the right hands this car stands to be a true champion. 
2016 WSCC Speed Series Novice Championship winning car:
2nd in Class at Wiscombe
Fastest Novice, Class Winner, Fastest Westfield overall at MIRA in May
Fastest Novice at Anglesey in June
Fastest Novice on Sunday and Class Winner both days at Blyton (68.74, also fastest in class D vs experts)
Fastest Novice at Hethel, 3rd in Class
Fastest Novice at Loton Park, 3rd overall (day 1)
Fastest Novice at Loton Park, 1st overall and fastest Westfield (day 2, wet)
Fastest Novice, Fastest Westfield and 2nd FTD overall at Anglesey in October (wet)
Class D record holder at Rockingham in 2017, fastest Westfield on the day, top 20 fastest overall
Class D winner, 2nd fastest Westfield overall (to Dave Cleaver!) and 11th Overall at MIRA
Javelin Sprint Championship - only attended two events but won the class at both and finished 2nd fastest overall with 99 points (of max 100) at each (only beaten by a kit car with over 400bhp!)
Lightweight Aerorace chassis, total vehicle weight 530kgs with fuel
Full lightweight bodywork in red, with one-off Carbon NV flared side panels in red/black carbon weave
AA Composites aeroscreen - can convert back to full windscreen set up (screen, pillars, wipers, wiper motor and screen washers included)
Carbon NV dash
Lightweight GRP bucket seat on sliding rails, 6 point harness for driver, 4 point for passenger (foam passenger seat fitted)
ETB digidash with gear shift lights
Push start button
MSA battery cut off (also acts as immobiliser)
Momo steering wheel
Dominator headlights
Custom carbon indicator mounts with lightweight LED indicators
Full MSA approved rollcage with correct homologation sticker in place
New nylon bushes in front wishbones
Correct metalastic bushes in rear trailing arms (new 2016)
Protech shocks all round (new in 2015) with 175lb rear springs and 300lb front springs (spare set of brand new 275lb and 150lb springs included if you'd like to go softer but the current set up feels right to me)
Playskool soft front anti-roll bar on CleaR Motorsport easy adjust fittings
Quick steering rack (2.4)
Alloy hubs (saves 4kgs over standard)
Rear axle - removed 2015, refurbished and straightened by Mallock (common issue is the axle bends fractionally when the trailing arm tabs are welded on), also had a touch of toe in added
New 3JD NXG LSD with 30/90 ramp angles
Lightweight alloy diff carrier from Specialist Components
Genuine Ford 4.1 crown wheel and pinion
SKF axle bearings, welded
Gearbox - Tran X 5 speed type 9, close ratio straight cut gear set, refurbished in 2017
1st 2.48, 2nd 1.69, 3rd 1.27, 4th 1.1, 5th 0.9
Quaife quick shift
Helix 4 paddle race clutch with sprung clutch plate (easy to use and balance on road but holds the power perfectly)
Lightweight flywheel
Alloy bellhousing
Engine - this is where the real heart of this car is.
Vauxhall C20XE, built from bare block in 2016, covered less than 500 miles
SBD Omega Pistons
SBD Steel rods with ARP 2000 bolts
Early crank (crank, flywheel and clutch balanced together)
Internal trigger wheel removed with SBD external trigger wheel and sensor
Oil gallery mod
King Race bearings
SBD dry sump system
GM head with correct water mod carried out, ported, large inlet valves, skimmed to compression ratio correct to cams of 12.39:1
Kent Race cams from SBD - spec is SBD278 and SBD269
SBD vernier pulleys
Solid lifters
Titanium spring caps
Double valve springs 
Adapted rocker cover, sealed off and lightened
Lightweight alternator with multi groove pulley, resized to accommodate higher engine revs
Mocal 19 row oil cooler and remote filter set up
Jenvey taper throttle bodies with 90mm ram air trumpets
Pipercross air filter with bonnet cut for cold air
MBE 967E ecu
Revotec electronically controlled high power 'pull' fan and polo radiator with ducting (maintains temperature perfectly in all situations)
Simpson Race Exhausts custom made bonnet exit exhaust with 7" can (averages 95db static, no issue at any circuit attended including Bedford)
Engine produces a solid and reliable (these are the two elements the engine was designed for and where the cost is) 221bhp and 176lb/ft torque, mapped at Track n Road. It will rev up to 9000rpm, however I have had the hard cut limiter set at 8200rpm and never gone beyond this. As peak power is made at 7000 rpm and holds all the way to the red line, I have tended to short shift at around 7500 rpm.
A change of cams to QED 450V or SBD's next level up will see well over 250bhp, similar spec engines comfortably run 280bhp so the option is there for you.  Given the weight of the car I have never felt the need for more power, preferring the reliability and strength offered as is.
Lightweight lithium ion race battery (weighs 600grams)
Raceleda alloy calipers with Ferodo DS1.11 pads
Twin brake cylinders with pedal bias bar
Floor mounted pedal set
Throttle pedal modified for perfect heel and toe positioning
13" Weller Roadsport steel wheels with Falken ZE912 (used as road and wet trackday tyres)
Additional spares available at asking price:
Spare nosecone
Two spare bonnets, one standard weight already cut to fit, one lightweight brand new
Spare wishbones
Spare quick rack
Spare coil packs and coil leads
Carbon effect rear arch protectors
Set of 13" Minilight alloys with slicks
Set of front springs 275lbs
Set of rear springs 150lbs
Optional set of 13" Compomotive CXR's in black with Kumho V700 or 13" Compomotive CXR's in gold with two event old Avon ZZR in super soft compound available to purchase separately (as shown in some pictures) 
I have owned the car since 2014 when it was bought with a crossflow engine.  Everything in the car has subsequently been replaced or upgraded, with a major overhaul to convert to the Vauxhall engine and ground up rebuild in 2015, followed by the installation of the race engine and dry sump setup in 2016.  The time, cost and development gone into this car is beyond value and if you're still reading, you will no doubt know that this is not your typical Westfield.
Included in the asking price is a corner weight session to set the car up to suit the new owner.
Asking price is £14,995
Happy to accommodate passenger rides to experience the drive but test drives will only be available on receipt of a significant non-refundable deposit.
PM through here or contact me on 07831 413878.












  • Like 1
  • Thanks 1

Share this post

Link to post
Share on other sites

Video from Rockingham here:


Share this post

Link to post
Share on other sites

Has this winning machine sold yet? 

Share this post

Link to post
Share on other sites

Fair bit of interest and some viewings coming up. The weather hasn't been kind so had to reschedule a couple from last weekend.

Share this post

Link to post
Share on other sites

  • Recently Browsing   0 members

    No registered users viewing this page.