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1976 Porsche 934_5 at Nurburgring Oldtimer Grand Prix.jpg
1976 Porsche 934/5 at Nurburgring Oldtimer Grand Prix

History
In 1967 Porsche prepared a small number of 934 Porsches with 935 Group 5 parts for the Trans-Am and IMSA GTO series. In the end, the 934/5 dominated the Trans-Am series by taking to top five positions in the championship.
Ludwig Heimrath became the 1977 Trans-Am champion in his 934/5 by protesting Peter Gregg's highly modified car. Together they humbled the Corvette C3s and the Group 44 Jaguar XJS. Later
Meanwhile in the IMSA-sanctioned 1977 Camel GT Challenge, Hurley Haywood placed second at the end of the season in the Bob Hagestad 934/5 as prepared by Franz Blam Racing. They were beaten by the DeKon Monza of Al Holbert.

Customers of the factory 934/5s included Jim Busby, Peter Gregg, The Interscope Team, George Dyer, Vasak Polak, Ciro Nappi, Bob Hagestad, Ludwig Heimrath, Dick Barbour and Clifford Kearns.

All the 934s were delivered, body-in-white, to several teams with the 935 wheel flares and rear wing. Only ten 934/5s were officially made by Porsche with the chassis numbers 9307700951, 9307700952, 9307700953, 9307700954, 9307700955, 9307700956, 9307700957, 9307700958, 9307700959, 9307700960.

Vita
type Racing Car
built at Stutgart, Germany
production 10
engine Flat 6
position Rear, Longitudinal
aspiration KKK Turbocharger
valvetrain SOHC
fuel feed K-Jetronic Mechanical Injection
displacement 2993 cc / 182.64 in³
compression 10.3:1
power 361.7 kw / 485 bhp @ 7000 rpm
specific output 162.04 bhp per litre
torque 588.4 nm / 434 ft lbs @ 5400 rpm
redline 8500
body / frame Unit Steel with Some Fiberglass Panels
driven wheels Rear Engine / RWD
wheel type BBS Center-Lock
front brakes 917 Ventilated Discs
rear brakes 917 Ventilated Discs
front wheels F 40.6 x 26.7 cm / 16 x 10.5 in
rear wheels R 40.6 x 31.8 cm / 16 x 12.5 in
steering Rack & Pinion
wheelbase 2271 mm / 89.4 in
front track 1402 mm / 55.2 in
rear track 1422 mm / 56.0 in
length 4128 mm / 162.5 in
width 1651 mm / 65.0 in
height 1321 mm / 52.0 in
transmission 5-Speed Manual
tran clutch Single Plate
gear ratios 3.18:1, 1.83:1, 1.26:1, 0.925:1, 0.724:1
final drive 4.43:1
top speed ~286.5 kph / 178.0 mph
0 - 60 mph ~5.6 seconds
0 - 100 mph ~12.0 seconds
0 - 1/4 mile ~13.2 seconds
fuel capacity 120 litres or 31.68 gal.
 
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