10 July 2008
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9ff breaks 400 km/h barrier

10 July 2008 | Graduate engineer Jan Fatthauer, creator and also test pilot of the 9ff proprietary development GT9, accelerates and speeds up from the full banked corner on the Papenburg oval course. Accompanied by a sound spectacle of automobile top class, the 964 Newton metres torque push down on the asphalt and vehemently thrust the car forward. At the end of the four kilometre long straight, the display of the satellite-supported time measurement shows an incredible 409 km/h.

Even as impressive as the maximum speed are the acceleration values of the rear-wheel driven car. It accelerates to 100 km/h in only 3.4 seconds, to 200km/h in only 8.2 seconds and the digital display of the instrument panel shows the 300 km/h in 16.4 seconds. The source of power for this overwhelming power is a modified motor from the Porsche 996 Turbo. The water-cooled 6-cylinder horizontally opposed engine with 4 litres cubic capacity and dry sump is equipped with two exhaust twin turbo chargers, titanium connecting rods, forged pistons and a 24 carat hard gold plated induction plate. Thereby, the aggregate achieves 987 hp / 726 kW at 7,850 r.p.m. The maximum torque of 964 Nm is reached at 5,970 r.p.m.

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The chassis was equipped with components from motor sports. Electronically adjustable aluminium shock absorbers in connection with double springs at the McPherson front axle and horizontal push-rods at the 5-steering rear axle guarantee an improved road grip. 9ff uses tyres by its technology partner Continental which ensure a perfect grip and traction. Selected Continental Vmax tyres in connection with ultra-light three-part forged wheels are approved up to a speed of 410 km/h and are therefore perfect for the requirements of such a high-speed car. 9ff uses the wheel-tyre combination with the dimensions 8.5 x 19 with 235/ZR 19 at the front and 11.5 x 19 with 325/30 ZR 19 at the back.

An opulently dimensioned sport brake system provides excellent deceleration values. Ceramic brake discs measuring 380 mm (front) and 350 mm (back) are sandwiched by the front 6- and rear 4-piston system. Special brake pads and an individually engineered race-ABS complete the system.

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For maximum crash safety, 9ff combines the Porsche GT3 front vehicle with a tubular steel-grid and developed a chassis made of very strong carbon- and Kevlar fibre. The compact under-body casing with its integrated rear diffuser generates additional output and renders stability at high speeds. The main feature of the 9ff GT9 is its low height of only 1,180 mm which underlines the striking racy impression. Moreover, its small frontal area is an important criterion for reaching speeds over 400 km/h.

The 9ff Fahrzeugtechnik GmbH produces a limited edition of 20 GT9 cars at the company location in Dortmund. The super race car by this specialist manufacturer for tuned Porsche cars is offered from 498,000 euros.

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