skillz

[M42Technik]

Why was he pumping the accelerator pedal so much? There were several times where he was off the brake and clutch as was pump the pedal like crazy.

To offset the turbo lag found in the Quattro car. No joke. He would rev it so that there was no lag because back then in the beginning stages of turbo cars you had huge amounts of lag that would bring the car to a halt in power.

Something to that effect, don't quote me on it. Honestly I dunno thats my best guess.

[blunttech]

I do that sometimes when I'm out drifting, not that much though. But my guess is that is how he controls wheel spin.

me too bro, when i head out for a night of drifting i keep the r's way up.

[Yakinho]

The REAL death trap in that video was the first 5 feet back from either shoulder of the "road". Back in those days, spectator safety was a sick joke at best. I know there are some documented incidents where these rally cars went off and people (not in the car) were killed. Groupe B cars were awesome and wickedly quick, but I think that's why they were brought to an end.

Jon

Sort of. They weren't brought to an end from the numerous spectator fatalities, but after Henri Toivonen (sp) and his co driver were killed in a Lancia Delta S4 crash in 86. Group B was banned in 87. There were other driver and co pilot deaths in 86 as well, but that was the point they were done.

[bignate948]

I do that sometimes when I'm out drifting, not that much though. But my guess is that is how he controls wheel spin.

yea im no expert when it comes to drifting but it seem to help to play with the throtle like that to keep control of the slide

[Justin B]

Sad stuff -
Henri Toivanen accident

http://www.youtube.com/watch?v=Kgb8yp0eywM&feature=related

and another one, RS200 into spectators in 86 as well. Kills 3. Shows the drivers complaining about conditions too.

http://www.youtube.com/watch?v=0IiANJ5EZMc&feature=related

[E-Thirty]

me too bro, when i head out for a night of drifting i keep the r's way up.

lol

[TwoJ's]

To offset the turbo lag found in the Quattro car. No joke. He would rev it so that there was no lag because back then in the beginning stages of turbo cars you had huge amounts of lag that would bring the car to a halt in power.

Something to that effect, don't quote me on it. Honestly I dunno thats my best guess.

Do you really think the Groupe B cars were "in the beginning stages of turbo cars"? And do you really think the engineers that designed those engines didn't know why there was "lag" with the large (relative) turbos they used?

[M42Technik]

Do you really think the Groupe B cars were "in the beginning stages of turbo cars"? And do you really think the engineers that designed those engines didn't know why there was "lag" with the large (relative) turbos they used?

Something to that effect, don't quote me on it. Honestly I dunno thats my best guess.

EDIT:

The thrust arrives in a mighty dollop the moment the rev needle hits 4000rpm...That original system was one of the most brutally effective pieces of engineering ever employed in professional motorsport. Audi knew that they needed to keep the turbo spinning but they lacked the electronic trickery of today, so they developed a way of injecting fuel into the exhaust system, creating a secondary explosion. That's why an S1 at flat chat could be seen throwing six-foot flames out of its exhaust pipes. It wasn't excess fuel being burned, it was the anti-lag system.

http://www.auto-power-girl.com/specifications/audi/audi_s1_rally_group_b_1981__1989-1216

There's some research from what seems to be a reputable source. Hope that helps you out.