Sparks, sparks, sparks.......

  • Thread starter Thread starter Sheron
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Catch a Opel Calibra Touring Car, reduce the height, decrease springs to the max, put heavy downforce, and lots of fun.:D :D :D :D :) ;) :p :lol: :lol: :lol: :eek: :eek: :lol: :lol: :cool:
 
This happened yesterday when I was drifting with it.
You know for drift the springs have to be very soft. And when the car was over 200 lots of sparks came out the rear of the car (with no downforce). Then I rised downforce and the car was all the time touching the floor!!!
 
Hmm... sounds interesting. I'll have to try this tonight. BTW - Other than the Calibra, what cars does this trick work with? 787B? Astra Touring car?
 
Originally posted by Sheron
I think with racing cars that have "ground effect" tunnel below the rear bumper

A difuser you mean? like what hangs out the back of the Viper race car?
 
Originally posted by under18carbon
What are those 'difuser' or 'ground effect tunnels' used for? What are their functions. and how does it affect a race car? :confused:

Answers please!!! :D:tup: Agreed. ;)

The idea is that with ground effects, the air passes more quickly under the car than over it - this means the air pressure over the car is higher than over it, producing downforce. Downforce produces grip.
 
the vertical panels on the rear of the oreca viper and other race cars just keep it srtraight on the track. kind of like tail fins on an airplane, they keep it horizontal and stable
 
I think it has something to do with separating the hot air from the engine, exhaust gases and the cooler air flowing over the upper wings of the car as well.
Apricot hill is good for loads of sparks if you ride the kerbs too especialy the big hairpin.:)
 
The "shelf on the orecas back is where the air-flow from the venturi-tunnels exit. Found this on some site:

Glossary

18. Venturi: A narrow tunnel under the side pod, shaped like an inverted wing. As air enters and is forced through the narrow center,its speed increases, creating a low pressure area between the bottom of the car and the track. This creates a suction effect, which holds the car to the track.

19. Venturi Effect: Fluid speed increases when the fluid is forced through a narrow or restricted area. The increased speed results in a reduction in pressure. The underbody venturi is shaped to create a low pressure area between the road and chassis which creates downforce.

/D
 
GTJugend: Hey, thanks for those. More detailed! ;) BTW- Where did you get the info?

DMX: Yeah, they're just sparks, but it's fun watching a 787B go full speed with sparks from behind like crazy. It's just beautiful :lol:
 
the mercedes Touring Car (D2) also does it , lower the spring rate to the Extream left and the lowest ride hight possible
 
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