Why Manual Cars Switched To Hydraulic Clutches Instead Of Cable Clutches

Chris Bruce has worked in the automotive industry since 2011 and has written thousands of stories about cars, motorsports, and motorcycles in that time. He has written for Autoblog, Autoviva, CarFax, Edmunds, Hagerty, InsideEVs, Motor1, and New Roads. He has also hosted hundreds of podcast episodes. As hobbies, Bruce enjoys building plastic models of robots and cars. He also enjoys video games, particularly the 16-bit variety. His dog keeps him busy. We added more information about AC Motorsport's Francesco Calzavara and his prior involvement with Michelotto.

The C8 Corvette was a complete rethink, which naturally led to grumbling from people who don’t like change. One of the biggest sticking points with enthusiasts was the lack of a manual transmission. A clutch pedal and shift linkage would have been difficult to package in the mid-engine C8, and the performance and drivability benefits of the eight-speed dual-clutch transmission Chevrolet went with are undeniable. But with manuals making a comeback in limited-edition supercars, maybe there’s an opportunity to make something happen, at least on high-end versions of the Corvette? Tony Roma, executive chief engineer for the Corvette and performance cars at General Motors, explained on the latest episode of our show The Drivecast why manual-transmission diehards shouldn’t get their hopes up. Like so many other things in the auto industry, it’s mainly an issue of cost.

The newly revealed Porsche Mission S mid-engine supercar platform is engineered to support a traditional manual gearbox alongside automated PDK options. Porsche leadership confirmed that offering a manual transmission in the production model will ultimately depend on market demand and buyer feedback. The retro-inspired Mission S concept features traditional driver-focused elements, like a physical key, signaling a commitment to mechanical engagement. The Porsche Mission S concept car that was recently revealed is meant to point the way towards the automaker’s future—one where a new flagship supercar above the 911 pushes the brand upmarket while strengthening ties to the company’s past. And that future, it seems, could include an old-fashioned row-your-own transmission. During remarks at the launch event in New York City, Porsche CEO Dr. Michael Leiters stressed that the new supercar has a flexible platform that’s compatible with multiple powertrains, and he specifically said that it could be powered by either pure internal-combustion engines or hybrid ones. More interestingly, it can also accept either manual or PDK-style automatic transmissions.

Hydraulic fracturing is a technique in which large volumes of water and sand, and small volumes of chemical additives are injected into low-permeability subsurface formations to increase oil or natural gas flow. The injection pressure of the pumped fluid creates fractures that enhance gas and fluid flow, and the sand or other coarse material holds the fractures open. Most of the injected fluid flows back to the wellbore and is pumped to the surface. Hydraulic fracturing has been used for over 60 years in over one million wells. Recently, public concern about potential impacts on drinking water and other environmental damage has significantly grown. Consequently, Congress directed the Environmental Protection Agency (EPA) in 2010 to conduct a study of this practice to better understand any potential impacts of hydraulic fracturing on drinking water and groundwater. DOE/NETL is working closely with the EPA as it carries out the study and is also collaborating with the Department of the Interior to enhance understanding of these risks. On May 5, 2011, U. S.

New models deliver up to 20% better fuel efficiency and a 15% reduction in CO2 emissions Volvo Construction Equipment is bringing its proven, industry-leading hydraulic hybrid technology to the newest generation of excavators with the EC260 Hybrid, EC300 Hybrid, EC370 Hybrid, EC400 Hybrid and EC500 Hybrid.