WRC Testing

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Originally Posted by denkimi

i believe it is quite the opposite.

formula 1 cars need to be able to reach speeds of over 300km/h, so they actually cannot use really big wings.
they have long straights, and few corners, so they rarely have a lack of traction. but most importantly: without a high top speed they can't overtake.

rallying is completely different. you often don't have enough traction, but very few moments where you hit top speed. and you don't need to overtake.
so here it is much better to sacrifice some top speed to gain traction through a much bigger wing.

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Going sideways seriously disturbs the airflow both under and over the wing.

Quote:

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Originally Posted by denkimi

i believe it is quite the opposite.

formula 1 cars need to be able to reach speeds of over 300km/h, so they actually cannot use really big wings.
they have long straights, and few corners, so they rarely have a lack of traction. but most importantly: without a high top speed they can't overtake.

rallying is completely different. you often don't have enough traction, but very few moments where you hit top speed. and you don't need to overtake.
so here it is much better to sacrifice some top speed to gain traction through a much bigger wing.

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Going back to my example - the student formula is good to show that relatively large downforce is possible even at low speed. I was actually really surprised how much aerodynamic downforce can help on a twisty narrow track where the cars can't reach over 130 km/h and which looks nearly like a slalom between the cones. This particular car has active wings so that it can accelerate better because the max drag configuration is quite slow at straights (with opened wings this one does 0-100 @ 3,1s).

It seems that begins to gain some speed...

Today Tests Yaris wrc!

https://www.youtube.com/watch?v=gsai39eVPYE

nice photo from Paddon testing



https://pbs.twimg.com/media/Cs0zXA7WIAAFHWC.jpg:large

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Originally Posted by Mk2 RS2000

Going sideways seriously disturbs the airflow both under and over the wing.

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As is shown in the recent shot of Hayden testing

Quote:

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Originally Posted by Mk2 RS2000

Going sideways seriously disturbs the airflow both under and over the wing.

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unless it is designed to cope with that.

if you expect the cars to be sideways all the time, like on gravel, you can design the wings so that it still creates downforce in that situation. that's why wings on rally cars are so different than those on circuit cars.

Ogier in Tarragona today.....

https://pbs.twimg.com/media/Cs9yIkfXgAAxA3t.jpg:large

https://pbs.twimg.com/media/Cs9yPhfWgAAJ2_8.jpg:large

A bit easier to check out the changes in gravel spec. Definitely looks different head-on but can't quite put my finger on what has changed. Bigger front radiator area maybe?

https://www.youtube.com/watch?v=lMkTaVlqSVM

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Originally Posted by Simmi

A bit easier to check out the changes in gravel spec. Definitely looks different head-on but can't quite put my finger on what has changed. Bigger front radiator area maybe?

https://www.youtube.com/watch?v=lMkTaVlqSVM

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different sound at antilag.

https://scontent-bru2-1.xx.fbcdn.net...f2&oe=586FE8E2

any more info of what that measures?