Tag Archives: transmission
Mitsubishi Recalls 82426 Vehicles due to Faulty Transmission
Sneezing is even more disgusting with high-speed cameras
3D Printed Manual Transmission Actually Shifts
One of the cool things about 3D printers is that you can use them to make just about anything you can dream up. An engineer named Eric Harrell used his 3D printer to make all the components needed for a scale model of a Toyota 22RE engine back in January.
His next project was a logical step in the 3D printing of Toyota drive components with the making of a 5-speed manual transmission. The transmission is designed to match directly up to that 3D printed engine. It even has moving gears inside and shifts by hand.
Harrell based his designs off the real engine and transmission. That means if you can build these 3D printed reproductions, you might be able to work on the real things too. Check out the video below to see the tiny transmission in action:
[via 3DPrint]
2015 Stingray Automatic Transmission shifts faster than a Porsche dual-clutch auto
GM Shows off 8-speed Automatic Transmission for the 2015 Corvette Stingray
There is a huge difference between most automatic transmissions that have a torque converter and paddle shifters and the dual-clutch automatics with paddle shifters featured on many European sports cars. A paddle shift automatic in a Ford product, like the Taurus SHO, needs about 1000 RPM to shift a gear making for a very annoying driving experience.
On the other hand, the dual-clutch transmission on something like the BMW M3 will shift gears much faster than your typical person can shift a manual. Chevrolet is going to be offering a new 8-speed auto transmission in the 2015 Corvette Stingray. However, many people were not happy when it was announced that the transmission GM made for the car isn’t a dual-clutch unit.
GMs tranny has a torque converter, but the company claims it will shift faster at wide-open throttle than the dual-clutch unit Porsche uses in its 911. GM says the 8-speed 8L90 transmission will shift gears .08 seconds faster than the Porsche gearbox. At the same time since it has a torque converter, GM says that it remains smooth and comfortable around town. The 8L90 transmissions will be offered in the standard Stingray for 2015 and the Z06 version.
“Corvette Stingray’s new eight-speed automatic delivers the comfort and drivability of a true automatic transmission, as well as lightning-fast shifts and the manual control that enhance the performance-driving experience,” said Bill Goodrich, assistant chief engineer for eight-speed automatic transmissions. “It was designed to enhance the Stingray’s driving experience, with performance on par with dual-clutch designs, but without sacrificing refinement.”
Guess we’ll have to wait to drive a 2015 Stingray to see how well the transmission lives up to its promises.