Mazda RX-8 with a Twin-Turbo Mercedes V8

Mazda RX-8 with a Twin-Turbo Mercedes M113 V8

This Mazda RX-8 is being built by Hepp Garage Racing Factory in Limanowa, Poland. The car was previously powered by a twin-charged stroked 2.9 L BMW M50 inline-six featuring a BorgWarner S300SXE turbocharger and Eaton M62 supercharger. They recently swapped to a twin-turbo 5.0 L Mercedes M113 V8 featuring two JRspec GTX3076R turbochargers and a … Read more

Mazda RX-8 with a Twin-Turbo 3.1 L Saab/Opel V6

Mazda RX-8 with a Twin-Turbo 3.1 L V6

The Mazda RX8 was built by MAX Performance in Gorzów Wielkopolski, Poland. Under the hood sits a twin-turbo 3.1 L V6 built from a 3.0 L Saab B306 V6 and 3.2 L Opel Y32SE V6. Both engines are based on GM’s 54° V6 platform. The engine features Hipeco ceramic-coated pistons, Re5pect forged rods, ported heads, … Read more

For Sale: Mazda RX-8 with a Ford 300 ci Inline-Six

Mazda RX-8 with a Ford 300 ci Inline-six

This 2004 Mazda RX-8 is for sale in Minneapolis, Minnesota for $1,400. We’ve featured this car before in 2016 when it was for sale. The RX-8 is powered by a 300 ci (4.9 L) Ford inline-six mated to a Ford M5R2 toploader five-speed transmission and welded differential. The current owner has installed or replaced the … Read more

Building a Twin-Turbo Isuzu V6 for a Mazda RX-8

Mazda RX-8 with a twin-turbo Isuzu 6VD1 V6

A reader contacted us to share their unique project. They are building a 3.2 L 6VD1 V6 from an Isuzu Rodeo to power a Mazda RX-8. They will boost the engine with two Garrett T25 turbochargers from a Nissan 300ZX with a goal of 400-450 horsepower. The engine will be mated to a Pontiac Solstice … Read more

For Sale: Mazda RX-8 with a RB25DET Inline-Six

2004 Mazda RX-8 with a RB25DET inline-six

This 2004 Mazda RX-8 is for sale in Tarnów, Poland for 36,000 zł or about $9,536. The factory 1.3 L RENESIS two-rotor was replaced with a turbocharged 2.5 L RB25DET inline-six. The engine features a custom oil pan, R34 turbocharger, HKS BOV, 450 cc injectors, and RB25DET Neo STAG6 fuel rail. The engine makes 296 … Read more

Mazda RX-8 with a Turbo 4G63 Inline-Four – Part 1

Mazda RX-8 with a turbo 4G63 inline-four

Pistonhead Productions recently started a new drift build series. You might remember their previous project, a Mazda Miata with a Cummins 4BT turbo diesel inline-four. This time around the guys are installing a turbocharged 4G63 inline-four into a Mazda RX-8. In this video they start tearing down the RX-8 before sending it to get a … Read more