• Dec 10, 2006


Tonight's overnight enjoyment comes in the form of this undated (though recent-looking) video of an Audi S1 in full banzai mode as it frolics through a course set up to show off its godlikeprowess. The sound never gets old, and the 20something-year-old Audi looks as ferocious today as it did back in it's Group B salad days. At least this time, it doesn't have hundreds of people standing in its path.

It's winged mayhem on tarmac, and we could sit here watching and listening all night.

[Source: YouTube]


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  • 20 Comments
      • 8 Years Ago
      People are big and strong and brave on the internet.
      • 8 Years Ago
      Exact, it's the blowoff valve. The Prodrive P2 make exactly the same sound: http://www.youtube.com/watch?v=Vo_D9hp-oa8
      • 6 Years Ago
      Vielen Dank! Mein Lieblingsauto!!! Geiler gibt's nicht!
      • 8 Years Ago
      Huh, well, learn something new everyday! Thanks folks.
      • 8 Years Ago
      Glorious
      • 8 Years Ago
      #17 -

      thanks... somewhat heavier than i would have thought
      • 8 Years Ago
      Who cares if it's an Audi- The Quattro was one of the most important rally cars ever. Regardless of badge, if a car revolutionized a motorsport it is of interest to Autoblog's readers, in my opinion. That it is completely badass is icing on the cake. I am still watchng the Walter Rohrl video from yesterday.

      Mulad, I believe the chattering noise you are referring to is the wastegate of the turbocharger, which blows off excess exhaust pressure so you don't blow up the turbo when you lift off (this is not a scientific definition and I'm sure there are 10x people who can describe it better). I don't think it's the clutch.
      • 8 Years Ago
      Huhu! Yes, it's a recent video. Nice to see those monstrers are still alive and kicking asses!

      Nice nice. Not as impressive as the rallies with thousand of people, but the traction, the noise, the speed. It's drifting as its best in an intelligent manner.
      • 8 Years Ago
      For more info:
      http://www.swrt.com/team_questions.html
      see question on chirpping noise.
      • 8 Years Ago
      Please post more VW and Audi adds to make #5 even happier.
      • 8 Years Ago
      The sound you're hearing is a blow off valve. It prolongs the life of the turbo and keeps it spooled up by venting left over pressure (either to atmosphere or back into the intake if it's a recirculating valve) when the throttle slams shut (you lift your foot off the gas, either from revving or shifting gears) and the air has nowhere to go except back the way it came in and makes the turbo vanes want to shift direction which can weaken or break them, own the hell out of the bearings, and reduce the speed of the turbine.

      You saw how incredible that car was on dry pavement, even though it was 2600 pounds. Imagine doing that on ice, snow, or dirt. The amount of fatalities during a season were unbelievable. Those group B guys deserve so much more respect. The current rally cars all have restrictions on intake size and (correct me if I'm wrong) exhaust size to limit the power and prevent so many spectators and drivers from dying and are somewhere around the tune of 300hp (once again correct me if I'm wrong). The men that piloted those group B vehicles were inhuman, god-like even.
      • 8 Years Ago
      whoops wrong link on technical comment, this is the right one:
      http://www.swrt.com/team_questions.html
      scroll down to the question specific to this thread.
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