Nothing good can come of a car crash… or can it? When a duo of German motorsport firms saw their tricked-out 911 GT3 crash at the ‘Ring, they rebounded by building what they hope will be the fastest street-legal sports car in the world - the 776 kW Mission 400 Plus.
By Gareth Dean
You’ve got to love the chaps at H&R and Jurgen Alzen Motorsport. When their Alzen Motorsport 911 GT3 crashed during the second lap of the Nurburgring Six Hour Race last year, they didn’t sob hysterically while sweeping the Porsche’s remains off the circuit; They simply built an insane replacement – a 776 kW monster with which the firms hope to set a new world record for the fastest street-legal sports car.
Mission 400 Plus is the project name given to a Porsche 997-based collaboration between Jurgen Alzen Motorsport, H&R and engine tuning gurus RS Tuning. The result is this svelte-looking machine with a claimed top speed of 400 km/h. The car will make its record attempt at Nardo in Italy during the second half of next year and the 400 Plus’ creator, Jurgen Alzen, will be at the helm.
The 911 Turbo engine was thoroughly reworked by RS Tuning, based in Kirchhaslach, for its application in the Mission 400 Plus. Displacement of the flat-six engine increased to 3,8 litres and the company also fitted high performance camshafts and precision-machined cylinder heads with larger valves to the motor.
The standard variable turbine geometry blowers are replaced with larger conventional turbos. Custom-made stainless steel exhaust manifolds and custom sports exhaust with metal catalysts help feed the voracious turbos with the aid of higher-capacity intercoolers.
All of this fettling results in a staggering 776 kW peak output at 7 000 r/min, 1 030 N.m at 5 800 r/min and a modified six-speed gearbox with high performance clutch is tasked with transferring that monumental power and torque to the 400 Plus’ rear wheels.
Technicians from Jurgen Alzen Motorsport are responsible for the smooth 911-driven-at-400 km/h-through-a sandstorm sculpting of the Mission 400 Plus. The frontal surface has been reduced by lowering the roof by 76,2 mm and a 5,5 degree rake reduction of the A pillars. Wind tunnel testing also resulted in aerodynamic styling cues such as the cowlings for the 18-inch BBS lightweight alloy wheels, lengthened rear section and absence of rain channels.
The bonnet, doors and Recaro racing seats are hewn from carbon fibre and the cabin sports little more than a reinforced roll cage.
H&R’s High End suspension set-up introduces special struts and springs, in addition to redesigned rear axle links, custom-made aluminium A-arms and bearings made from hardened high quality materials to cope with the demands of Nardo’s banked circuit.
Original article from Car