Developed from a standard production Elise rolling chassis, this lightweight (and high-tech) racing car was built in 1998 to contest the 1999 British Speed Hillclimb Championship.
The bodywork was constructed from ultra light autoclaved composite carbon fibre, unpainted in the quest for ultimate weight loss (although now wears standard Elise body panels). The chassis remains the ground breaking extruded aluminium epoxy bonded assembly by Hydro Raufoss UK Ltd. With unprecedented accuracy and excellent torsional rigidity, this was deemed a perfect base for a competition car.
Mid-mounted is the 1400cc aluminium 4 cylinder, 16 valve K series engine, which was tuned to produce 300bhp, aided in large by internal componentry developed by Turbo Technics. Breathing through a Garrett VNT (Variable Nozzle Turbocharger) which allows the pitch of a perimeter ring of vanes to be altered, giving optimum performance over a wide speed range. The turbocharger is considerably modified by Turbo Technics and includes a computer controlled wastegate. The turbine spins at up to 140,000 rpm, with an exhaust gas temperature of 1000c, and the air is cooled by a four stage charge cooler.
Exhaust gases are expelled through a 3 diameter stainless steel fabricated system, no silencer is employed, sometimes creating spectacular one metre long flames from the tailpipe whilst emitting the required amount of decibels.
Transmission utilises the Elise PG1 gearbox casing with revised 5-speed close ratio straight cut gears and a limited slip differential.
Power to weight ratio is of prime importance, true to the Colin Chapman legacy. It is essential that the driver Mark Waldron maintains a constant 76kg, the Corbeau carbon fibre Kevlar reinforced seat and 6 point Willans safety harness with aluminium adjusters are located as close as possible to the centreline of the car, however, suspension settings are precisely measured at each of the four contact patches of the dual compound Bridgestone tyres and any imbalance will upset the handling of the car. The Lotus Sport Original Performance Products front and-roll bar and uniball rear toe link assembly developed for competition have been installed to cope with the increased loads applied during racing.
Shock absorption is controlled through 3 way adjustable WP dampers with variable spring platform height and remote reservoirs. Many thousands of combinations are available but Mark stated that ‘because of the high and low speed bump adjustment we have arrived at the ideal settings, now if I run over a penny I can tell if it is heads or tails.’
The braking system is largely as the production car, using the aluminium metal matrix ventilated discs. The pedal box has been slightly modified and incorporates a larger accelerator pedal and an adjustable brake proportioning valve has been introduced to control front to rear brake balance. James Lister & Sons produce the flexible racing hoses and fittings to cope with the pressures under racing conditions
Supplied new direct from the Lotus factory in Hethel, this well-known Elise, prepared at a cost of £150,000 by Streber Motorsport in Devon, was campaigned by Mark Waldren from 1999 to 2001, winning the Hillclimb Championship in 2001. Mark sold the car in April 2003 to its current keeper who to this day still owns the car.
Presented in excellent condition and offered with its history file, this is a wonderful example of a competitive and hugely entertaining car, offered at a fraction of the build cost.
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