Not Ranked
Ron,
They use air to close the valves, they are made out of materials that we only read about that are super light and strong, the highest I have ever seen one rev to (watching the data read out on screen) is about 19,500 rpm, the engine are 3.0 liters (183 cubes) right now but they are reducing engine size to 2.4 liters in the near future to limit horsepower - current horsepower is about 850 and I have never seen a torque figure published.... they also use 7 speed transmissions with tiny little clutches. Shifting is electro-pnuematic with pressures in the 3500 psi range! I heard one engineer say that when the shift button is pushed, the transmission WILL shift NOW.
Total car weight empty is about 1100 pounds -
Most "open wheel" cars are formula cars - (sprinters and midgets are not usually referred to as formula cars - too french I assume- ) as they are built to race to a racing formula....
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