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Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.

Callaway debuts its new C7 Stingray at National Corvette Museum

Callaway showed off its first tuned version of the 2014 Corvette Stingray at the National Corvette Museum last week, giving the rampant enthusiasts of America's sports car a look at the roughly 620-horsepower, supercharged rocket.
Unlike the Corvette SC610 we showed you back in January, this Stingray packs a fair bit more oomph. Horsepower is only up ten ponies, but torque has jumped from 556 pound-feet to "at least" 600 pound-feet. Neither horsepower nor torque is official quite yet, although Callaway is expecting to know just what its creation can do once testing and validation is completed later this month.
The 6.2-liter, supercharged V8 now boasts a new, three-element intercooler, which Callaway claims only allowed the inlet air temperature to increase by ten degrees Fahrenheit during dyno runs. Previous designs saw a 35-degree-Fahrenheit jump. The exhaust system has also been fettled with, and now is even less restrictive.

Chevy Cruze gets first official tease

The Cruze has been a runaway success for Chevy. In fact the company has sold over 3.5 million of them since its introduction in 2008. And now the company is preparing to roll out the all-new second-generation model, previewed in the teaser image above. Set to be unveiled on June 24, the 2016 Cruze promises to be larger, yet lighter, that the model it replaces. It will pack new engines, safety features, and technologies – including the integration of Android Auto and Apple CarPlay. The new Cruze will be based on the same platform that underpins the new Volt and (among others) the new Opel Astra just introduced in Europe. It'll be a vital model for Chevy, which sells the Cruze in 115 countries around the world – chief among them China, Brazil, Canada, and these United States, where sales continue to rise despite the model's age and impending replacement. Look for the second-gen Cruze to hit dealers early next year, joining a revitalized Chevy lineup alongside such notables as the new Spark, Malibu, and Camaro. Cruze Control: Success Paves Way for Next Generation Chevrolet's best-selling global car surpasses 3.5 million sales 2015-06-03 DETROIT – Chevrolet Cruze, the brand's best-selling car around the world, has surpassed 3.5 million global sales, a milestone that comes as Chevrolet prepares to introduce the next-generation Cruze on June 24. "When we introduced the Cruze it replaced 15 other compact vehicles around the globe," said Alan Batey, president, General Motors North America and global Chevrolet brand chief. "By consolidating design, engineering and marketing efforts, we were able to produce an award-winning, value-driven sedan that won over customers around the world." Cruze is sold in 115 countries. The top global markets include China, the United States, Brazil and Canada. In the United States, Cruze total sales were 273,060 in 2014 – a 10 percent increase over 2013. It is also the segment's second-best seller to customers under 25 in the U.S. Importantly, Cruze brings new buyers to Chevrolet – 35 percent of all buyers are new to the brand. Additionally, of those who trade in a Cruze, 56 percent stay with Chevrolet and 23 percent trade in for another Cruze. "In every corner of the globe, Cruze has been successful at introducing new and younger customers to Chevrolet," said Batey.