There are many different forms of internal combustion engines, but most use the same basic principle. Explosions in the combustion chamber move pistons up and down to spin a crankshaft. That ...

John is a Michigan-based nerd who is a sucker for the Lions and, appropriately, the Pistons. His previous day job was producing local TV news. He fell in love with cars thanks to a 1967 Ford Mustang ...

How the 13B-MSP Renesis evolved from earlier Mazda rotary designs, technical features explained, and common problems and maintenance issues discussed. The 13B-MSP Renesis rotary engine powered the ...

In the previousissue we finally got around to building and installing a modified and totally refreshed Renesis rotary engine in our RX-8 project car, and later in this issue you’ll read about its ECU ...

Pickup trucks have long been defined by their durability, torque, and purpose-built utility. From worksite staples to off-road rigs, trucks traditionally rely on torquey inline-fours, V6s, or V8s to ...

In the wild and sometimes weird history of automobiles, few vehicles stand out quite like the Mazda Rotary Engine Pickup, or REPU. Produced for just four model years between 1974 and 1977, this ...

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix Wankel ...