2009 Porsche 911 on 2040-cars

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Porsche 911 puts Turbos on its turbos

Distinct from the turbo-but-not-Turbo Porsche 911, the new high-performance models come to market with either 540 or 580 horsepower, depending on which version of the 3.8-liter, twin-turbocharged flat-six engine you choose. Both figures count as a 20-horsepower bump over the last Turbo/Turbo S, allowing both models to hit 60 in under three seconds – 2.9 and 2.7 seconds, respectively – and in the case of the S, on to a 200-plus-mph top speed. This capability will not come cheap, of course. Before so much as dipping a toe into Porsche's notoriously deep options catalog, the base Turbo will demand a $160,195 check. That's awfully spendy, and things don't improve as you climb up the range. The cabriolet adds $12,300 to that, while the S starts at $189,095. Going topless in the Turbo S will require $201,395. We had no trouble building a Turbo S Coupe up to $211,000 without adding some of the more obnoxious options, like the $1,720 leather air vents. Check out our live galleries of both the new 911 Turbo and the 911 Turbo S at the top of the page. Redefining fast: the new 2017 Porsche 911 Turbo and 911 Turbo S Top model of the 911 range offers more power, fresh design, and enhanced features ATLANTA, Nov. 30, 2015 /PRNewswire/ -- Porsche will be off to a powerful start in 2016 when the 2017 911 Turbo and 911 Turbo S make their debut at the North American International Auto Show in Detroit in January. The top-of-the-line 911 models will be available in both coupe and convertible body styles and are equipped with engines offering 20 horsepower more than before, a sharper design, and enhanced features. The 3.8 liter twin-turbo six-cylinder engine powering the 911 Turbo now develops 540 hp. The increase in horsepower is achieved through modified intake ports in the cylinder heads, new fuel injectors, and higher fuel pressure. The 911 Turbo S now makes 580 hp thanks to new turbochargers with larger impelle. In addition to a higher maximum torque (553 lb.-ft. in overboost compared to 523 lb.-ft. on the Turbo), the Turbo S also has a higher redline (7200 rpm instead of 7000). Porsche is still the only manufacturer to use turbochargers with variable turbine geometry in gasoline engines. The engines now also have a dynamic boost function, which improves throttle response during spirited driving. It maintains the boost pressure during load changes – i.e. when the accelerator pedal is briefly released.

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.

Porsche Macan to debut at LA Auto Show

Auto Express reports Porsche will unveil the upcoming Macan SUV at this year's LA Auto Show. Citing an unnamed "insider," AE says that the five-door will bow with engines, suspension and interior architecture that will help differentiate it from its Audi Q5 chassis mate. Big shocker there. We've been hearing the same line since we first caught word of the Macan back when it was still rolling around under the Cajun name. The report does shed some light on the model's pricing, however. That same insider says the Porsche Macan will carry a price tag of 36,000 pounds.
What does that mean for American buyers? Do some quick math based on current conversion rates, and average UK and US prices, and we come up with a sticker of roughly $42,000 here in the land of the free. That fits in line with the rest of the company's stable, with the larger Cayenne starting at $49,600.
Still, we'll wait for more concrete word before jumping behind the AE report wholeheartedly. The 2013 LA Auto Show gets going in late November.