2001 Mazda Miata Mx5 Ls on 2040-cars

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Mazda files patents for a sequential twin-turbo setup

Mazda has a history of interesting engine technologies, from yesterday's rotary engine to tomorrow's compression ignition engine, and new patents show it still may have some internal combustion tricks up its sleeve. The one on display in these patents isn't especially new in concept, though. A sequential twin-turbocharger setup is something Mazda itself used on the third-generation RX-7. But it's something we haven't seen much of lately. It looks like it could have some possible advantages over older sequential systems, and it has some potential advantages for enthusiasts. First a quick and dirty primer for what makes a sequential twin-turbo system distinct from other twin-turbo systems. In many twin-turbo engines, there are simply two turbos that work together as one bigger turbo. They're the same size, and they spool up at the same time. With a sequential setup, at low rpm, a smaller turbocharger is spooled up first at low-rpm for quicker throttle response, and as the rpm and exhaust pressure increases, a valve opens up that allows a larger turbocharger to also spool up and provide high-rpm boost. That's basically how the Mazda design shown above functions. A big flap blocks off the larger turbocharger exhaust inlet, channeling all the exhaust to the smaller turbo. When more exhaust is available at high rpm, it looks like that flap opens up to spool up the big turbo, too. What's interesting here is that the way the turbochargers are packaged takes up less space than past systems. It looks like both turbos are contained in one unit that shares the same exhaust outlet, meaning the exhaust manifold could be kept simple and compact. In fact, the piping for compressed intake air could also be shared, reducing the amount of piping, which would further decrease the amount of materials and possible failure points. There are a number advantages of making this system smaller. The potential applications of the system are much greater, since it could fit in smaller cars with smaller engine bays. Making the system smaller also means that there won't be as much weight, which is important from both fuel economy and performance standpoints. Finally, the smaller setup likely uses fewer materials, which could make the system cheaper and thus easier to offer on a wider range of vehicles, or at least more profitable for Mazda.

Britain's BBR already promising 2016 Mazda MX-5 Miata with 200+ horsepower

The 2016 Mazda MX-5 Miata is one of Autoblog's most anticipated cars to drive this year, and with good reason. Thanks to svelte, angular styling, the promise of less weight, the possibility of more power and all at a fairly affordable price, it represents pure, automotive enjoyment. Mazda is still not saying exactly how much power the new Miata's 2.0-liter Skyactiv four-cylinder engine will make, but that isn't keeping British tuner BBR from already working out how to squeeze even more ponies from the mill – potentially as much as 200 horsepower with natural aspiration. The company bought a Mazda3 for access to its 2.0-liter Skyactiv and went to work on it. "Our objective with the all-new MX-5 is to achieve the same 200 bhp output that we can easily enjoy with simple bolt-on components on the current 2.0-litre NC model, before building on further power upgrades using forced induction," said Neil McKay of BBR in the company's release. The 3's version of the engine is rated at 155 hp and 150 pound-feet of torque but is expected to be tuned for additional grunt for the droptop. Still, it gives BBR something to experiment with before the real thing is available. The tuner also got the opportunity to take a look at a pre-production 2016 Miata and is already developing "subtle bodywork alterations" for the upcoming convertible. You can get a taste for the company's plans with the rendering above. It sports tinted lights, a front lip spoiler, lower side sills and a tiny rear spoiler. Scroll down to read more about BBR's plans in the official announcement. BBR UNVEILS STUNNING 200 BHP ALL-NEW MAZDA MX-5 CONCEPT Despite deliveries not scheduled to begin until July, legendary Mazda performance tuner BBR is making great progress with both its visual concept and powertrain development for the all-new MX-5. "A program of detailed performance enhancements has already commenced at our Brackley base," says BBR's Neil Mckay, "thanks to our investment in a 2.0-litre Skyactiv powered Mazda 3. Our objective with the all-new MX-5 is to achieve the same 200 bhp output that we can easily enjoy with simple bolt-on components on the current 2.0-litre NC model, before building on further power upgrades using forced induction." Having viewed a pre-production version of the car BBR is also working hard on visual enhancements to add more presence to the svelte lines of the all-new MX-5.

Mazda recalls Takata airbags in B-Series

The Basics: Mazda will recall 19,000 examples of the 2004–2006 B-Series pickup. The Problem: The pickups contain Takata-sourced driver's side airbag inflators that could rupture in a crash. The spray of metal shrapnel could injure or even kill occupants. Injuries/Deaths: None reported in the Mazda pickups. However, a rupturing airbag inflator killed the driver in a Ford Ranger, which is identical to the B-Series. The Fix: Mazda will replace the driver's side inflator. If You Own One: Mazda plans to notify affected owners as soon as dealers have the replacement parts. More Information: Mazda already recalled 442,266 driver's side Takata inflators and 416,475 of them on the passenger's side. The affected models included the 2003-2008 Mazda6, 2004-2006 B-Series, 2006-2007 Mazdaspeed6, 2004-2008 RX-8, and some examples of the 2004 MPV. Ford also issued an expanded safety campaign for 391,394 examples of the 2004-2006 Ranger. Related Video: Mazda Announces Recall On B-Series Vehicles With Takata Driver-Side Frontal Airbag Inflators WASHINGTON, DC (February 1, 2016) – Mazda has decided to recall all 2004–2006 model year B-Series Trucks with Takata driver-side frontal air bag inflators. Approximately 19,000 vehicles are affected in the U.S., Puerto Rico and Saipan. There have been no reports of accidents or injuries on the Mazda-badged vehicles subject to this recall. Model Year 2007-2009 B-Series Trucks with Takata passenger-side frontal air bag inflators are part of a previous recall. Approximately 19,000 vehicles are affected in the U.S., Puerto Rico and Saipan. Below is a summary of Mazda models with a passenger- and/or driver-side front Takata air bag inflators currently being recalled. Total Number of Driver's frontal air bag inflator - 442,266 Total Number of Passenger's frontal air bag inflator - 416,475 2003-2008 Mazda6 2004-2006 B-Series 2006-2007 Mazdaspeed6 2004-2008 RX-8 (All Driver-side / Certain Passenger-side) 2004 MPV (Certain Vins only. Click here to see if your vehicle is included.) Mazda North American Operations is headquartered in Irvine, Calif., and oversees the sales, marketing, parts and customer service support of Mazda vehicles in the United States and Mexico through more than 700 dealers. Operations in Mexico are managed by Mazda Motor de Mexico in Mexico City.