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 by Richard Owen
engine Swindon Racing GM V6 w/Dry Sump Lubrication
position Transverse, Mid Engine
aspiration Natural
valvetrain 4 Valves per Cyl
displacement 2998 cc / 182.9 in³
bore 86 mm / 3.39 in
stroke 86 mm / 3.39 in
power 298.3 kw / 400 bhp @ 7750 rpm
specific output 133.42 bhp per litre
bhp/weight 470.59 bhp per tonne
torque 398.61 nm / 294 ft lbs @ 6500 rpm
redline 8250
body / frame Carbon Fibre Body over Aluminium Extruded & Bonded Chassis w/Rear Subframe
driven wheels RWD w/Limited Slip Differential
front tires 250/610-17
rear tires 280/650-18
front brakes AP Racing Vented Discs w/6-Piston Calipers
f brake size x 344 mm / x 13.5 in
rear brakes AP Racing Vented Discs w/6-Piston Calipers
r brake size x 330 mm / x 13.0 in
front wheels F 452.1 x 22.4 cm / 17 x 8.8 in
rear wheels R 45.7 x 28.6 cm / 18 x 11.25 in
steering Rack & Pinion
f suspension Unequal Wishbones w/Coil-Over Ohlins ST44 Dampers, Adj Anti-Roll Bar
r suspension Unequal Wishbones w/Bilstein Gas Dampers, Eibach Coil Springs, Adj Anti-Roll Bar
curb weight 850 kg / 1874 lbs
wheelbase 2300 mm / 90.6 in
front track 1457 mm / 57.4 in
rear track 1507 mm / 59.3 in
length 4147 mm / 163.3 in
width 1827 mm / 71.9 in
height 1159 mm / 45.6 in
transmission Hewland Sequential 6-Speed w/AP Racing Twin-Disc Cerametallic Clutch
gear ratios 3.00:1, 2.20:1, 1.66:1, 1.30:1, 1.08:1, 0.92:1, :1