Fact file:
Name: Spire GT-R
Manufacturer : Spire Sports Cars
Locaction: Alfreton, Derby
Contact: 01773 874 694
Proprietor: Paul Nightingale
Type: Light weight LM Style
IVA : Yes
Acitve in: Road, Trackday, Race, Hill Climb
Specification: Road or Race specification chassis and body
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Shown: Spire GT-R road and race cars.
Specification
Engine + Gearbox: Kawasaki , Honda, Hayabusa
Sierra Differential or chain driven
Audi 80/A4 + Audi Transaxle gearbox
Audi TT + Audi Transaxle gearbox
Duratec + Audi Transaxle gearbox
Zetec + Audi Transaxle gearbox
Renault 21 Turbo
Weight : 450kg to 700kg depending on engine and body spec.
Distribution: typical rear/front. 50 / 50 - bike engine, 65 / 35 - car engine
Chassis: Square section tube space frame panelled in aluminium.
Chassis Stiffness: Excellent
Body: Three section body panels made of GRP. Light weight race option.
Dimensions: Length 3.7m, width 1.6m, height 1.05m (top of rear canopy) height to rear of cockpit 0.73m. Engine bay internals - width 1.1m narrows to 0.95m -height 0.6m reducing to 0.375m. Ground clearance variable according to preference but approximately 90 - 100mm. Wheel base track - width 1.6m, length 2.5m.
Suspension: Double wishbone fully independent all round, coil over dampers
Suspension Tuning: Fully adjustable front and rear camber, rose jointed. Front Caster adjustment. Race specification upgrade.
Tyres: 195/50 R15 typical.
Gear Shift: Audi / Toyota MR2 mechanism for car engine, Rod linkage or cable for bike engines.
Gear Shift position: Centre console - car, LHS or RHS as preferred - bike.
Paddle shift: Yes on sequential gearboxes
Differential: Sierra or chain ATB for bike engine.
Reverse: Optional on bike engine
Brakes : Standard spec. Sierra front and rear. Upgrade to 283mm dia on 15" wheels.
Hubs: Sierra standard front and rear.
Steering : Escort 2.9 or 2.4 quick rack
Top Speed: 120 - 160 mph depending upon engine and final drive.
Sprint: approx 3.5 - 4 seconds to 60 for Kawasaki ZX12
Build time: approx 200 - 300 hours depending on factors such as if self painted.
Ease of build: Approximately the same as a Locost /Westfield. The Kawasaki ZX12 is the standard base for this car and requires little or no modification to body or chassis. Other engine choices may require extra modifications, check with Paul at Spire Sports Cars.
General comment: Wide body aerodynamic design makes even the
smallest of engines fun to drive. The Spire GT-R has a long wheel base design which provides forgiving and controllable cornering for novice or experienced driver alike. Its low weight and good distribution results in exceptional acceleration, braking and cornering. This make of car is superb value for money for anyone wishing a track or road car of this type.
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