2005 Lotus Sport Exige


2005 Lotus Sport Exige

2005 Lotus Sport Exige

Lotus Sport, the performance division of Lotus Cars, has developed the new Exige, a direct motorsport derivative of the successful roadcar. The car has been taken from concept to reality in only six months thanks to several engineering partners. It was designed by Barney Hatt (Principal Designer for Lotus Design), under the direction of Russell Carr (Chief of Design).

The Lotus designed and engineered racecar was partly manufactured by RTN, the team responsible for the Le Mans winning Bentley. They were specifically responsible for producing a new lightweight carbon-fibre bodywork structure around the standard Exige chassis. An aerodynamically developed front splitter, carbon fibre rear diffuser and an adjustable carbon rear wing provide increased levels of downforce.

The Lotus Sport designed fully adjustable suspension system with double wishbones all round was fabricated and manufactured by Pilbeam. Power is provided by a 400 hp Swindon Racing Engines tuned GM 3 litre V6 racing engine linked to a Hewland sequential six-speed gearbox, with AP-Racing providing the braking system.

This one-off racecar has been built for a South East Asian client and is expected to race in selected sportscar races in Asia. There are no plans as yet to build further examples of the Lotus Sport Exige but the base structure has been carefully designed to comply with key motorsport regulations around the world. Adhering to the key Lotus philosophy of performance through lightweight, the Lotus Sport Exige weighs in at just 850kg.

In Detail

submitted byRichard Owen
engineSwindon Racing GM V6 w/Dry Sump Lubrication
positionTransverse, Mid Engine
aspirationNatural
valvetrain4 Valves per Cyl
displacement2998 cc / 182.9 in³
bore86 mm / 3.39 in
stroke86 mm / 3.39 in
power298.3 kw / 400 bhp @ 7750 rpm
specific output133.42 bhp per litre
bhp/weight470.59 bhp per tonne
torque398.61 nm / 294 ft lbs @ 6500 rpm
redline8250
body / frameCarbon Fibre Body over Aluminium Extruded & Bonded Chassis w/Rear Subframe
driven wheelsRWD w/Limited Slip Differential
front tires250/610-17
rear tires280/650-18
front brakesAP Racing Vented Discs w/6-Piston Calipers
f brake sizex 344 mm / x 13.5 in
rear brakesAP Racing Vented Discs w/6-Piston Calipers
r brake sizex 330 mm / x 13.0 in
front wheelsF 452.1 x 22.4 cm / 17 x 8.8 in
rear wheelsR 45.7 x 28.6 cm / 18 x 11.25 in
steeringRack & Pinion
f suspensionUnequal Wishbones w/Coil-Over Ohlins ST44 Dampers, Adj Anti-Roll Bar
r suspensionUnequal Wishbones w/Bilstein Gas Dampers, Eibach Coil Springs, Adj Anti-Roll Bar
curb weight850 kg / 1874 lbs
wheelbase2300 mm / 90.6 in
front track1457 mm / 57.4 in
rear track1507 mm / 59.3 in
length4147 mm / 163.3 in
width1827 mm / 71.9 in
height1159 mm / 45.6 in
transmissionHewland Sequential 6-Speed w/AP Racing Twin-Disc Cerametallic Clutch
gear ratios3.00:1, 2.20:1, 1.66:1, 1.30:1, 1.08:1, 0.92:1, :1