Published on: Jan 18, 2016 @ 16:32 Originally Published in: 2015 (old website) (C) Jay Auger - website owner & author Notice: Any form of duplication methods (including but not limited to copy/paste of text and screen capture) of the website's content is strictly forbidden.
Audi revolutionized rallying with the quattro and it was not long after that some saw the potential of the car for the legendary Pikes Peak “Race to the Clouds” event. In fact, the quattro would become a winner 6 years in a row; John Buffum (1982-83 / quattro), Michèle Mouton (1984-85 / Sport quattro S1), Bobby Unser (1986 / S1 E2), and lastly in 1987 with Walter Röhrl.
Before we get to Röhrl’s very special machine, let’s revisit the events leading to it: In 1986, Audi had abandoned their Group B WRC program early in the season due to the spectator deaths in Portugal and other safety concerns. However, some insiders stated that the truth was that Audi was under pressure from VW to terminate its rally operations since they weren’t competitive any more. In any case, Group B itself was eventually banned at the end of the same year which would have netted the same result. Many people felt like the short lived Sport quattro S1 E2 didn’t achieve nor had proven its full potential, especially versus Audi’s arch rival Peugeot and their 205 T16. As such, Audi prepared a very special version of their car specifically for the 1987 Pikes Peak race. One car to prove that it can once again reign supreme. It was to be the ultimate iteration of the quattro. You could even say how the Group B quattro might have evolved into if given the chance.
For the Pikes Peak special edition, although the car’s official designation remained the same as the rally model, it was much different under its skin than its predecessor of the same name. The new car featured a brand new full spaceframe construction instead of a monocoque chassis (found on all the previous versions). This allowed to substantially lower the weight of the car and much improve the bias (50/50) by relocating various key components. Further aerodynamic improvements were performed by adding a double stack rear spoiler and a very iconic front spoiler. The suspension itself was also redesigned to a double wishbone setup. For power, the car had “officially” around 600 HP, which was the same about tune used in the 1985 Finland rally, but insiders claimed that the Pikes Peak version realistically had closer to 1000 HP. Walter Röhrl later stated in an interview that the car actually had 750 HP and that the throttle was like an “on/off switch”.
The car gave Röhrl the opportunity for his record breaking run of 10:47.850 and be the first ever competitor to reach the peak under 11 minutes. He also defeated a fleet of three specially prepared 205 T16s that Peugeot had entered in hopes to stop Audi’s reign at the event. In the end, Audi had won its gamble and immediately retired the rally quattro from competition, but this time as a legendary champion. Audi’s motorsport aspirations thereafter shifted to circuit racing.
It is worth mentioning that the “quattro” is correctly spelled with a small “q” which also can be used to specify the Audi four/all wheel drive system. For more information about the correct spelling, CLICK HERE!
|Group/Class||Unlimited||Pikes Peak Special Version|
|Years active||1987||# built: 1|
|Type||I-5, DOHC 20v, gas engine||located front longitudinal with 27.5oright inclination|
|Output power – torque||
|Materials||block: aluminium||cylinder head: aluminium|
|Ignition||electronic / firing order 1-2-4-5-3|
|Lubrication system||dry sump with 1 oil cooler|
|Type||four wheel drive||Dual clutch « power shift » 6 speed transmission|
|Gearbox ratios||1st: 3.179
|Differential ratio||N/A||Front, center, and rear self locking|
|Clutch||dry – double plate|
|Type||Tubular space-frame construction. 2 door coupe steel/kevlar bodyshell with plastic front/rear bonnets and bumper covers. NACA style roof cooling duct. Aerodynamic “double stack” spoilers to the front and rear of the car to increase downforce. Side deflectors. Single seater.|
|Front suspension||Double wishbone|
|Rear suspension||Double wishbone|
|Steering system||rack and pinion with hydraulic power assistance||12.4:1|
|Brakes||front/rear 4 aluminium piston calipers, front ventilated rotors 330mm diameter, rear ventilated rotors 304mm diameter||dual circuit with servo|
|length: 4250 mm (167.3 in)||width: 1860 mm (73.2 in)||heigth : 1344 mm (52.9 in)|
|wheelbase: 2224 mm (87.6 in)||front track : 1465 mm (57.7 in)||rear track: 1502 mm (59.1 in)|
|Rims – tires||front and rear
|Dry/Unladen Weight||1000 kg (2205 lb)||Bias Front/Rear%: 50/50 (claimed)|
|Weight/power||1.7 kg/HP (3.7 lb/HP)|
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