Quote:
Originally Posted by Dominik
Love to hear more!
What is your take on temperature in general since much less air can now escape under the car? You may need to add some NACA ducts in the plate and/or openings with "Gurney" flaps.
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Dominik
Temperature and heat are your worst enemy when operating on the race track.....I should say, control of heat and temperature Are your biggest challenges......when the air under the car is reduced via a air dam and you extend the plates under the vehicle for torsional rigidity like we did.....then the air above the car has to travel farther and faster over the car......then you get lift......
To combat that lift, you need the splitter below the air dam to give you some down force on the nose of the vehicle, and once you put down force on the nose .....you have to balance the vehicle with a wing on the rear of the vehicle.
This also creates the issue of what do you do with the air coming in thru the radiator opening.....normally that air comes in the engine compartment and exits out the wheel wells area and under the vehicle.
In our case we closed off the bottom of the car with our Torsional Plates.....and knowing that the air vents on the side of the front fenders don’t evacuate any air out of the engine compartment .......
We had to put vents on the hood in the right location so they would evacuate the hot air in the engine compartment.....in addition, we turned the scoop around and by not extending it to the windshield we created a low pressure area at the end of the scoop so the air could come out at that location as well....
That is why at 185mph on the track....we don’t get any lift on our front end.....
Also if you look close at our Torsional plates on the bottom of the car we have screen areas to evacuate any air that is coming down the tunnel.....and with a low pressure area under the chassis the air flows Thur a transmission cooler mounted horizontally on the plates so we use that air to cool our transmission fluid as well.....
Sorry for the long post.....but it’s a long explanation......
