2014 Mazda Mazda3 I Sport on 2040-cars

Auto blog

2019 Mazda Miata officially announced with 181 horsepower

It turns out the rumors and leaks are true. The 2019 Mazda MX-5 Miata will indeed get a slight performance increase. This fall, the car's naturally aspirated 2.0-liter inline-four will make 181 horsepower and 151 pound-feet of torque. That's a 26 horsepower and 3 pound-feet bump over the 2018 model. It may not sound like a lot on paper, but consider the fact that it's a nearly 17 percent increase in power in a car that weighs just 2,332 lbs. When the current ND generation debuted a few years back, the Miata actually took a slight hit to power. It was offset by a sizable weight loss program, but it didn't stop people from making a fuss. These days, it's not often that a newer model actually loses power compared to the outgoing car. The new car now makes roughly the same power as the old turbocharged Mazdaspeed MX-5 from 2004. Peak power for the 2019 model comes at 7,000 rpm while peak torque arrives at 4,000 rpm. That's 1,000 more and 600 fewer revs respectively. The Miata's redline is now 7,500 rpm, up from 6,800. It should make the car feel more lively through the rev range and should drop the car's 0-60 mph time back under 7 seconds. The 2019 model only weighs 7-pounds more than the outgoing model, so it's essentially a non-issue. In order to get the extra juice, Mazda engineers did some significant work to the engine's internals. Piston mass has been reduced 27 grams while the connecting rods are down 41 grams. The exhaust system and inner exhaust manifold have been modified to reduce pumping losses by 30 percent. The intake and fuel injectors have been changed, too. A new dual-mass flywheel replaces the single-mass unit. This should help better manage engine vibrations and responsiveness. Lastly, the final drive ratio has been increased from 3.454 to 3.583. Other gear ratios remain unchanged. There are other minor but welcome changes for 2019. The steering wheel now telescopes, a boon for drivers with long legs. The doors are easier to open and feature revised door stops. The cupholders and seat levers have both been updated. Finally, there are new 17-inch wheels and a new brown canvas soft top. How all these changes will affect the car remain to be seen. While many people have been clamoring for more power, some of us here at Autoblog feel the Miata may lose some of its current character with such a significant shift in power and torque. Either way, we're as excited as ever to get behind the wheel. Related Video:

Japan carmakers vouch for safety of some Kobe Steel parts

TOKYO — Four Japanese automakers on Thursday said they found no safety issues with aluminum parts supplied by Kobe Steel Ltd, allaying some concerns that falsified quality data on products from the steelmaker had compromised their vehicles. Kobe Steel shares surged after the car makers' statements, but the steelmaker still has to contend with a U.S. Justice Department probe, while checks continue at hundreds of companies involved in complex supply chains spanning the globe. Japan's third-biggest steelmaker admitted earlier this month it falsified specifications on the strength and durability of aluminum, copper and steel products, along with materials for optical disks. The falsifications stretch back for more than 10 years, a senior executive told Reuters this week. Since then, global automakers, aircraft companies and other manufacturers have scrambled to identify potential hazards in their products. Toyota, Honda, Nissan and Mazda said that hoods and other exterior parts used in their cars which were made from aluminum directly supplied by Kobe Steel were safe. Kobe Steel shares ended the day nearly 7 percent higher but are still down by more than a third since it announced the data falsification. Automakers are still making checks on other parts, including those that they received through their parts suppliers. "We confirmed that the materials satisfy applicable statutory standards, and our own internal standard, for key safety and durability requirements for vehicles," Toyota said in a statement. Toyota, one of the world's largest automakers, identified aluminum plates supplied by Kobe Steel for the hoods and rear hatches of Toyota and Lexus brand vehicles. Though outside the automaker's specifications, they were still safe to use. While Subaru and other carmakers said they were still investigating the issue, the announcements by Toyota, Honda, Nissan and Mazda suggest that Kobe Steel's cheating scandal may have a limited impact on product safety."SERIOUS SITUATION" Nonetheless, the company's fate hangs in the balance while checks are being carried out. It must report to Japan's industry ministry by around the end of next week on any safety concerns and provide a more extensive account of the problems a fortnight later. Industry leaders have reached a consensus that Kobe Steel is in a "serious situation," a senior Japanese manufacturing executive told Reuters.

Patent application suggests Mazda rotary return

A recent patent application by Mazda reveals that the Japanese automaker is still working on the rotary engine. This could in fact be the Skyactiv-R engine found in the RX-Vision concept from the 2015 Tokyo Motor Show. As with anything Wankel-related, nothing is certain until Mazda makes a production commitment. But this filing suggests that serious development is happening in Hiroshima. The 2011 Mazda RX-8 was the last rotary-powered car you could buy in America. Slow sales, poor fuel economy, and tighter emissions standards prevented Mazda from committing to a follow-up. But the fundamental principles of the rotary - compact size and light weight - perfectly fit Mazda's Skyactiv ethos. (For an explanation of how rotaries work, click here.) In this new engine the intake port sits at the bottom of the engine with the exhaust port on top instead of the other way around. That allows for lower mounting, which improves a car's center of gravity. This rotary is also turbocharged. Putting the turbo up high helps ensure it doesn't get in the way of any body or chassis crossmembers. The implication of those claims is that somebody is thinking about how to put this engine in a car. There are other benefits as well. The short path from the exhaust port to the turbo ensures minimal turbo lag. It also allows for a close-mounted catalyst on top of the enigne, which will help emissions. Another innovation in this new engine is a triangle-shaped rotor that covers part of the exhaust port. This allows for different exhaust flow characteristics. The filing claims that that two of the four orientations allow for less airflow resistance in the exhaust port. As in previous Mazda rotaries, there are two spark plugs to manage ignition timing and combustion. But unlike in the 16X concept, Mazda's last public display of such an engine, the new rotary uses port fuel injection. Keep in mind this is only a patent application. A Mazda spokesperson refused to comment on future product, but commented "As we stated at the Tokyo motor show, Mazda is doing all that it can to bring a rotary to the market." In the meantime, keep your RX-7 prayer candles lit and hope for the return of the rotary before the end of the decade. You can bide your time by reading the entire application here. Related Video: Related Gallery Mazda RX-Vision Concept: Tokyo 2015 View 11 Photos News Source: USPTO via autoevolution Rumormill Mazda Performance rotary mazda rx7