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Originally Posted by JFP in PA
It is more than a matter of semantics, if you saw the Vette or Doge trans out of the car, they have a torque converter, use pumps to generate pressure, planetary sets, sprags, pawls, and all the other stuff found in all automatic transmissions. If you saw the PDK out of a Porsche, it is not similar to the current seven speed manual, it is the seven speed manual, complete with gears, synchro rings and everything else you would find in a manual gear box, the big difference is that it uses a dual (one of even gears, one for odd) wet clutch system, and everything is controlled by computers, right down to "blipping" the throttle during down shifts.
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No, the Vette and the Hellcat do not have a torque converter. Did you bother to read the links I posted?
From the Corvette link
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With four simple gearsets for optimal efficiency and five clutches (two brake clutches and three rotating clutches), creative packaging enables the new eight-speed automatic to fit the same space as the previous six-speed automatic – and the powerflow only uses two open clutches for low spin losses, which enhances efficiency. Extensive use of aluminum and magnesium also make it more than eight pounds (4 kg) lighter than the six-speed.
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and the Hellcat gets this transmission
ZF 8HP transmission - Wikipedia, the free encyclopedia
They are all automatic transmissions as they shift the gears for you. Porsche, Ferrari, Stingray, Hellcat, BMW, Lambo, Nissan GTR all of them are automatics using a clutch system.
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