2013 Porsche Cayenne Turbo Msrp $123,990 1-owner Trade Save $25,000 Off New One! on 2040-cars

Auto blog

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.

This is why we love the Porsche 911 reimagined by Singer

In the world of restomods, Singer Vehicle Designs is inarguably one of our absolute favorites. The company, founded by rocker Rob Dickinson, has made its name as an obsessive constructor of vintage, built-to-order Porsche 911s with modern internals and beautiful accouterments.
Xcar has put together a lengthy interview with Dickinson, covering the source of his fascination with the 911 and his passion for automotive design, before falling into his rock-and-roll days with his band Catherine Wheel. He also covers how he got into the world of modifying Porsches, rather than just restoring them. There's much, much more in the video, though, and we promise, you won't want to miss it.
Take a look.

Porsche previews new 911 in development

Porsche has taken the rather unorthodox step of releasing a series of photos of a new vehicle before it reveals it in full, sans brightwork and covered in dirt. That model, as you can see, is the new 911, expected to feature a number of upgrades and some big changes over the 991-generation line it will replace. The photos give us an advance look at the update, with more details to follow. Likely to be dubbed (unofficially) as the 991.2 or 991.5, the new 911 will encompass the usual array of visual updates: revised bumpers, headlights, rolling stock, interior equipment... the works, as we saw from the most recent batch of spy shots. But the biggest change will be under the hood, where Porsche is expected to fit a new family of downsized, turbocharged flat-six engines to replace the naturally aspirated units in the current models, likely with more power and improved performance to boot. We expect the launch of the new 911 to kick off a raft of new versions to follow, including coupes, convertibles, and Targas (as you can see from the photos), as well as rear- and all-wheel-drive versions in various states of tune. The current generation, after all, bred a about two dozen versions, and you can bet the new one will lead to just as many, from the base Carrera all the way up to the Turbo. That will (as in the all-turbo Macan range) likely remain the flagship model, even after the forced induction no longer sets it apart. The GT3, GT3 RS and a new purist model are expected to be the only hold-outs for atmospheric pressure, but the widespread adaptation of turbocharged power will put another degree of separation between the new 911 and the naturally aspirated, air-cooled models of old. For more details, we'll have to wait until Porsche reveals the full monte, but for a taste of what's to come, look no further than the 19 high-resolution images in this slideshow. Related Video: Featured Gallery 2017 Porsche 911: Testing View 19 Photos Image Credit: Porsche Porsche Performance porsche 991