Road & Track Article On 2019 Miata Changes

Thanks to a friendly Mazda dealer in Canada and some of the insiders at Miata.net, we now know quite a bit more about how the new 2019 Miata will make its power, as well as a few other pieces of information that will make some buyers hold onto their money and send others rushing to the dealership for a 2018 model.

https://www.roadandtrack.com/new-cars/future-cars/a19717774/theres-more-to-the-2019-miata-than-a-more-powerful-engine/

Let’s start with the engine. The power figures are impressive–181hp at an as-yet-unspecified engine speed and 151 lb-feet of torque. These are improvements of 26 hp and 3 lb-feet respectively. The only way to increase horsepower that much without increasing torque? You have to spin the engine harder. The current car has come in for some criticism because its 6800-rpm hard redline was 400rpm below the redline of the previous-generation NC Miata. Sure enough, the documentation provided to dealers refers to the “increased rev capacity” of the revised engine.

“Ultra-light” pistons, lighter connecting rods, and a new crankshaft are just part of it. The 2019 engine will have larger intake and exhaust ports and a high-lift camshaft. Both intake and exhaust systems will have higher flow and there is a new throttle body. These are the kind of changes that racers have been making on Miatas for twenty-plus years now, but the new ND2 Miata will have them from the factory.