Well, you did ask
1967 Lotus Elan S3 SE DHC. Owned since 1973
Modifications (completed, in progress or planned) :
Sierra Cosworth YB engine:
Approx 520bhp on pump fuel
Ford Motorsport 200 block
Long studded (6)
Balanced knife-edged lightweight WRC crank
8.2:1 compression ratio
High pressure oil pump
Big winged baffled alloy WRC sump
Steel windage tray
Group A rods
Mahle pistons with R4 pockets
Group A ported and gas flowed 2WD head
Hydraulic lifters
WRC phase sensor
Escort WRC inlet manifold
Piper BD14 inlet and exhaust cams
Piper vernier cam pulleys
Piper valve springs
WRC steel head gasket
4WD exhaust manifold
Custom made 3" exhaust system
T4 RS500 turbo with 60 trim compressor housing and 360 degree bearing
.31 Actuator
8x Bosch grey 403 injectors (under revision)
Distributorless ignition system (camshaft pickup)
Wasted spark coil pack (Motorcraft) and high performance plug leads.
4WD steel flywheel
Twin plate cerametallic Alcon clutch assembly
Direct port nitrous injection
3 bar MAP
No dump valve (thank goodness!)
Life full race ECU and custom made lightweight wiring looms
Anti-lag system
Launch control
Traction control
ABS wheel sensors for above on all wheels
Full throttle gear change system
Custom made alloy radiator and charge cooler.
Custom made exhaust system
Hi-Spec 4 pot alloy front callipers and larger grooved discs
Hi-Spec alloy rear callipers and grooved discs
TVR Speed 6 Tremec T5 gearbox (for now)
Modified Cosworth propshaft to mate TVR box to Cosworth diff
Sierra Cosworth 7.5” rear diff, Custom made gun barrel drilled halfshafts.
Custom made rear hub assembly.
2WD Cosworth CV joints
Uprated chassis to beyond 26R specification (by Graham Hatherway Racing) to cope with up to 650bhp
Uprated (Tony Thompson Racing) Lotus Elan rear bottom wishbones
Custom made (GH Racing) rear top wishbones (“Rose Jointed”) and hub carriers
Custom made (GH Racing) rear anti-roll bar
Custom made adjustable front top wishbones Spider bottom front wishbones.
Alloy (Pace Products) front wheel hubs
Poly bushes in all suspension parts that haven’t been “Rose Jointed”.
Custom made front anti-roll bar.
Adjustable GAZ alloy gas dampers and springs all round.
Standard steering rack but reconditioned and secured with solid mounts.
Floor mounted brake-bias pedal box assembly.
Hydraulic clutch assembly.
No ICE!!!
Carbon fibre seats (pair)
Carbon fibre dash
Carbon fibre doors and door cards
Carbon fibre boot
Carbon fibre bonnet
Carbon fibre headlamp pods
Caron firbre body to follow
Custom quick release steering wheel with inbuilt switches.
Gear knob containing starter and three other buttons.
Full roll cage including side impact bars.
Lap and diagonal seat belts for everyday use and full harness for track day and drag racing use.
5 gallon foam filled alloy fuel tank.
Holley blue top lifter pump.
1.5l collector tank
Pair of Bosch MotorSports high pressure fuel pumps (205l/min @5bar)
High flow filter.
600 series Aeroquip fuel lines.
Fuel pressure regulator with return feed
Custom made handbrake assembly.
Standard electric window motors
Heated front screen (as heater assembly and all ducting has been removed).
S3 rear lights replaced with S4 version
Bodywork modified to accommodate 3-piece 16x7” alloys with 215/35/17 tyres and 3-piece 17x8” alloys with 245/30/17 tyres.
Front splitter
Rear diffuser
Front and back bumpers moulded into bodywork
Underside smoothed
Red top lightweight 70ah dry cell racing battery.
Standard sealed beam headlamps (lighter than bulb type)
Lightweight 120amp alternator.
DHC but with optional Lenham hardtop
Component positions optimised to help in balancing car weight
Black paintwork
Should keep me busy for a few evenings