Unlike piston engines, Rotary engines don’t require valves to run. Here’s how rotary engines work and why some designs have incorporated valves.

Many of you have seen the process of making this rotary valve engine with different intake and exhaust system and how I tried ...

However, due to the rotary combustion engine's working principles, few engineers could overcome its challenges. In the end, only one car manufacturer achieved volume production: Mazda.

Explore the captivating process of building a one-of-a-kind rotary valve engine, boasting cutting-edge intake and exhaust systems. Experience the hurdles and victories throughout the project ...

Peering into the guts of a rotary engine teaches you what makes it live, and why it had to die.

The rotary engine isn't found very often these days, but the engine has played its own important role in the history of the automobile.

The rotary engine works on the same principals as the standard piston-based engine, but it does so in a different manner.

Part 1: The rotary engine’s origin story and how Mazda became synonymous with the unique combustion engine. From the June 2010 issue of Modified magazine.

As the old saying goes, there is no replacement for displacement. That's not the case when it comes to rotary engines, which typically have very small displacement. Instead of cubes, if you want a ...

However despite their pride rotary owners may not fully understand exactly how the engine works, or more specifically, don't admit that it just shouldn't work.

Mazda's debut of the rotary-powered RX Vision concept car at this year's Tokyo Motor Show was surprising for a number of reasons, chief among them that the concept appeared two years after Mazda's ...

If the Avadi valve works as a parameter to predict that, there seems to be reason for hope. The previous one suffered from high temperatures and sealing issues (as the most popular rotary engines ...