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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.

2016 Chevy SS gets new face, clears throat

Chevy is tweaking the SS once again for the 2016 model year. While the changes might be minor, muscle sedan enthusiasts shouldn't need any more excuse to love the Bowtie brand's performance sedan. The 2016 Chevy SS benefits from revised front-end styling that incorporates new vertical ducts designed to direct airflow over the front wheel wells. It also gets new LED lighting and new functional hood vents to make it look even more aggressive than the current model. Although the 6.2-liter V8 carries over unchanged from the existing version – churning out 415 horsepower and an equal amount of torque – a new dual-mode exhaust promises to be both quieter at lower speeds and angrier-sounding at higher revs. And of course you can still get it with a six-speed manual or automatic transmission. In any event, it should also look the business with its new 19-inch alloys as well. Related Video: 2016 Chevrolet SS Designed for Performance DETROIT – Building on the performance-oriented updates made to the Chevrolet SS last year, the 2016 model features several exterior enhancements that reinforce its presence on the road. A revised front fascia features new, vertical ducts at the outer edges to direct airflow over the front wheel openings to improve aerodynamic efficiency. The fascia also incorporates new LED signature lighting, while new, functional hood vents and new-design 19-inch cast-aluminum wheels contribute to a stronger appearance for the rear-drive sports sedan. "The 2016 SS design changes more fully express the true driving character of the sedan while further enhancing the car's overall performance," said Todd Christensen, Chevrolet Performance Car marketing manager. What hasn't changed is the SS's unique blend of performance, comfort and spaciousness. It features a 6.2L V-8 engine under the hood and turns out an SAE-certified 415 horsepower (310 kW) and 415 lb-ft of torque (563 Nm), and offers a six-speed manual transmission or a paddle-shift six-speed automatic transmission. A new, dual-mode exhaust system for 2016 complements the V-8 engine with quieter performance at low engine speeds and a more muscular engine note at wide-open throttle.

Next-gen Chevy Volt will get 1.5-liter, four-cylinder engine

As General Motors gets ready to unveil the new Chevy Volt at the Detroit Auto Show in January, it's starting to reveal a few more details about the updated plug-in hybrid. Today should be fruitful on that front, thanks to an event GM is hosting today that focuses on the new Volt, and we've just had the first bit of new: a bigger engine is coming. Since the beginning, the Volt has used a 1.4-liter, four-cylinder engine as a range extender when the battery runs dry. The second-generation model will instead get a slightly larger 1.5-liter, four-cylinder engine that will be built in Flint, MI. That's a step up from the various engines that have been a part of the 2016 Volt's rumored mills, everything from a 1.0-liter or 1.2-liter three-cylinder to a 2.0-liter turbo. The confirmation about the new 1.5-liter powerplant was found in Automotive News, where we also heard again that GM is going to start building the new Volt's electric drive unit in Detroit, moving production up from Mexico. We will have more information on the 2016 Chevy Volt later today.