2016 Porsche 911 Carrera 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.

100th Pikes Peak Hill Climb brings bad weather, heartbreak

Hill climb? Please. While Europeans spent the weekend driving up a nobleman's driveway at the Goodwood Festival of Speed, we in 'Murica got down and dirty with the 100th running up Pikes Peak. In a reversal of stereotypes, it is we who have understated. The "hill" climb ascends one of the tallest peaks in the Rockies, to a finish line that's 14,115 feet above sea level. To get there, it takes 156 turns over 12.42 miles, some of which just look like paved sky, because they have have no guardrails between the asphalt's edge and sheer dropoffs. In reality, the Pikes Peak International Hill Climb is even older than 100 years. The first event took place in 1916, but in 1917-19 and 1942-45, the so-called Race to the Clouds was put on hiatus due to a couple of world wars. This year's event was marked by damp weather that dashed the hopes of several teams' efforts to break new records. David Donner's Porsche 911 Turbo S Lightweight Package, for example, was widely expected to reclaim the production car record this year. Donner is a three-time PPIHC champ, and set the 2014 production car record in a 991-generation Turbo S.  A Bentley Continental GT piloted by Rhys Millen beat it in 2019, so Porsche was keen on taking it back. Donner broke the production qualifying time earlier in the week, but even the seasoned pro couldn't put his skills to tarmac due to moisture-laden surfaces and low-visibility from thick fog on race day. The result was 10:34.053, over 15 seconds slower than Millen's 10:18.488, still good enough to land the class's top spot and second overall. Acura arrived in Colorado to conduct its much-touted motorsports debut of the 2023 Integra. While the entry-level sports sedan, equipped with a stock engine but modified with a slew of HPD goodies, came in ninth in the production class, Acura didn't go home emptyhanded. A 2022 NSX Type S driven by Nick Robinson took the category's third spot. Taking second was Daijiro Yoshihara with a Tesla Model S. In recent years, electric cars have become a force to be reckoned with, especially since they are immune to high altitudes that negatively impact internal combustion cars. Poor conditions sent newcomer Levi Shirley's Ultra 4 buggy off course. Fortunately, it was near the lower sections, where there's still a significant amount of runoff past the pavement's end. Amazingly, Shirley landed wheels down in the video above, and simply continued driving through the pea soup haze.

Porsche to replace chassis components in 918 Spyders

The entire production run of the Porsche 918 Spyder is completely sold out, but 205 of them need to make a trip to the dealer for a repair estimated to take about two days. According to Porsche, it found quality problems with unspecified "chassis components" on the hybrid supercar and has instituted a plan to fix them as a precautionary measure. There were no reported breakages of these parts or complaints from customers. The German automaker already contacted all of the affected owners directly to have the 918s repaired in 2015. When reached for comment, Porsche Director of Corporate Communications Achim Schneider told Autoblog via email that "due to the supplier relationship we did not announce further details regarding the components so far." He also said that 43 vehicles are affected in North America, which includes the US and Canada. The 918 Spyder was affected by a small recall in the US earlier this year when Porsche found that the rear-axle control arms could potentially break. The campaign covered only five cars, though. Porsche replaces chassis components in 205 vehicles worldwide Atlanta. As a precautionary measure, Porsche will replace chassis components in 205 vehicles of the 918 Spyder model worldwide. The reason for this is that for vehicles that were manufactured in a certain time period defective parts were used from a delivery batch, whose functionality cannot be permanently guaranteed. No complaints have been made known (such as a break of a component) from customers up till now. The problem was identified during in-house quality inspections and remedied immediately. The owners of the vehicles, which could be exactly traced, were contacted directly by their competent Porsche representatives. The workshop visit, which will take place by appointment at the onset of 2015, takes about two days to complete at no charge. Featured Gallery 2015 Porsche 918 Spyder: First Drive View 51 Photos News Source: PorscheImage Credit: Copyright 2014 Michael Harley / AOL, Porsche Green Recalls Porsche Hybrid Supercars porsche 918 spyder porsche 918