Last week Japanese media confirmed that Mazda was giving the 2019 Miata a significant power bump from 155 to 181 horsepower, and raising the redline from 6,850 to 7,500 rpm. Now Mazda North America has confirmed that the more powerful version of the world’s most affordable sports car will indeed be coming to America and Europe.
We now know how Mazda squeezed 26 more horsepower out of the Miata’s mill and improved its revability — no easy feat for a small displacement of 2.0 liters. According to the company, internal engine friction and mass was reduced by reshaping the pistons and trimming 27g off of each one, as well as 41g off of each con-rod.
Though peak torque increases from 148 lb-ft to just 151, Mazda says there is improved twist at all rpms thanks to reconfigured intake ports and new high-diffusion, higher-pressure fuel injectors that atomize the fuel with a new tumble and swirl pattern.
In addition, Mazda increased valve lift and angle, while expanding the diameter of the exhaust manifold, reducing pumping losses by 30 percent. The new exhaust system is said to provide a richer note as well.
Mated A low-inertia, dual-mass flywheel, the Miata should provide a truly joyous throttle response and overall driving experience.
Aesthetic developments include a optional brown canvas top, black metallic 17-inch wheels of a new design, and revised cupholders and seat levers. A telescopic steering column extends up to 42mm, which will be a boon for taller drivers. A backup camera, frontal collision brake support, and traffic sign recognition round out the safety features.
As a result of the improvements, the Miata gains seven pounds. Mazda is quick to remind that engineers are still focused on reducing weight. For example, the addition of a telescoping steering column added weight, so they designed it in aluminum instead of steel.
We knew Mazda had good things in store for the US-spec Miata, but it’s nice to have confirmation Someone very wise (let us know if you remember the source) once said that no car has spawned more car enthusiasts than the Mazda Miata. Its job was just made a lot easier.