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Ferrari patents a fancy and fascinating electric turbocharger

While turbocharging has improved vastly over the years, and it has enabled cars to become both more powerful and more efficient, there's always room for improvement. Turbochargers scavenge exhaust gas pressure and use it to turn a compressor that forces intake air into the cylinders. However, as the patent points out, this means the intake compressor and the exhaust turbine are physically coupled, and have to spin at the same rate. Ferrari's design divorces the two, and it's a happy breakup. The key is hooking up the two components of the turbo to their own individual electric motors, with an energy storage device in between. It's different than the electric supercharger systems you have seen on certain Audi products, for example. Those systems recover energy like a hybrid, store it, and then use it to drive an intake compressor. It supplements conventional turbochargers that harvest energy from the exhaust. In systems like Audi's, the electric supercharger is supplementing the sequential conventional turbochargers when they're not operating efficiently, at very low RPM in particular. It works well, but it's complicated, and it is a workaround for the limitations of a conventional turbocharger. See below for an animation of the Audi system. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Usually, optimizing a turbo is a compromise between figuring out what RPM is ideal for each side to spin at to generate power. A smaller compressor generates boost more quickly, but loses efficiency at higher RPM. But there's way more energy in high-RPM exhaust gasses. By hooking up the turbine to an electric motor instead, you can harvest energy from the exhaust throughout the rev range, and particularly when the engine is pushing lots of gasses through. And you can store that energy in a battery if it's not needed at that moment. The intake-side compressor also has a reversible electric motor attached. It is not physically connected to the turbine, so it can operate at any time the computers decide it's beneficial. As engine RPM increases, the compressor doesn't have to increase its speed beyond its optimal range, so there's less energy wasted. And at low RPM situations, when a conventional turbocharger wouldn't have enough exhaust gas passing through its turbine side to generate useful boost in the compressor side, the electric motor can spin up Ferrari's divorced compressor to provide some boost.

Ferrari to offer 458 examples of new Speciale Spider

Talk about first-world, one-percenter problems: you want to get a new Ferrari, you've even settled on the 458, but you can't decide between the Spider and the Speciale. It's a tough call, we know. But your pain will be over soon, if the latest rumors are to be believed.
Those rumors have it that, at an exclusive preview event for select customers at Pebble Beach this past weekend, Ferrari showed off a new 458 variant that combines the best attributes of the 458 Spider (namely its folding hardtop) with those of the 458 Speciale (those being its 600-horsepower engine and other go-fast bits).
Succeeding the similarly exclusive, best-of-both-worlds, F430-based 16M Scuderia Spider, the new 458 Speciale Spider (or whatever it's ultimately called) is said to be limited to 458 examples worldwide, and is expected to be unveiled to the public at the Paris Motor Show this coming October.

Ferrari 488 Pista Spider drops its top in the sun at Pebble Beach

Ferrari, as Ferrari does, has been moving fast. In the space of just five months, we were introduced to the new Ferrari 488 Pista at the Geneva Motor Show, had the chance to drive a Pista prototype and then a production version of the $345,300 supercar, and finally we were tantalized by the mere-mortals-can't-have it Pista Piloti Ferrari. Now Ferrari has its latest Special Series variant at Pebble Beach, the Ferrari 488 Pista Spider concept. Ferrari says it is the 50th convertible in company history and has the lowest weight-power ratio yet in a droptop at 1.92 kg/cv (or about 4.22 pounds per horsepower). That equation is helped in no small part by 710 horsepower, driving a car with a dry weight of just 3,036 pounds — it's that slight if you've checked all the boxes for lightweighting options, that is. That's about 200 pounds more than the coupe, but Ferrari says this car still does 0-to-62 in 2.85 seconds and has the same 211 mph top speed. Ferrari says it maintained the aerodynamics of the coupe, and the convertible also shares the coupe's lightweighting from gobs of carbon fiber and simplification. The driver's door handle is a mere strap. This species of Spider can be identified by a central stripe down its back, which, Ferrari says in its announcement, "recalls the movement of the airflow and exalts the lines of the car." The blue stripes over a white body also happen to be traditional racing colors of the United States, another nod to the car's debut site and America's love of convertibles. Assisting the car's at-the-limits driving dynamics is a new lateral control system called the Ferrari Dynamic Enhancer. The Spider has 20-inch diamond-finish alloy wheels with berlinetta rims, though you can opt for one-piece carbon-fiber wheels offering a 20 percent weight reduction. No mention of whether the 488 Pista Spider will enter production, but Ferrari notes the popularity of its droptops in the U.S., so we're going to assume it's happening. And if Lamborghini can do a droptop version of its hardcore Huracan Performante, why shouldn't Ferrari with the Pista? Related Video: Featured Gallery Ferrari 488 Pista Spider at Pebble Beach View 16 Photos Related Gallery Ferrari 488 Pista Spider Image Credit: Ferrari Design/Style Ferrari Convertible Performance Supercars Pebble Beach