BMW Z4 with a S85 V10

BMW Z4 with a S85 V10

The BMW Z4 M Roadster (E85) came from the factory with with a 3.2 L S54 inline-six making 338 horsepower and 269 lb-ft. However Manhart calls this roadster a “MHZ4 600” because of the increased power from a powertrain swap. Instead it’s powered by a 5.0 L S85 V10 from E60 M5 stroked to 5.8 … Read more

Papadakis Racing 1000 hp B58 Build at SEMA 2019 and Dyno

Papadakis Racing 1000 hp B58 inline-six

Stephan Papadakis and his team at Papadakis Racing has been developing a 3.0 L B58 inline-six capable of 1,000 horsepower. The engine uses JE pistons, Carillo rods, factory crank, Monotune intake, ported head with Supertech valvetrain, Full-Race exhaust manifold, and BorgWarner EFR9280 turbocharger. The engine runs on E85 fuel through six ID 2000 cc injectors … Read more

Custom BMW Z4 with a Turbo RB26 and 4WD Drivetrain

Custom BMW Z4 with a Turbo RB26 and 4WD Drivetrain

This custom BMW Z4 drag car doesn’t usually meet most fans’ definition of an “engine swap” but it’s too interesting to not share. The car is owned by Henrik Karlsson and built by Pure Performance Factory in Krylbo, Sweden. It features a fiberglass and carbon fiber Z4 body on a custom tube chassis. The engine … Read more

BMW Z4 with a Turbo 2JZ Inline-Six

BMW Z4 with a turbo 2JZ inline-six

Andre Cardadeiro has owned a Toyota Supra for 14 years. He’s gained a lot of experience with the 2JZ inline-six in that time, including rebuilding the one in his Supra. So when he purchased a BMW Z4 for a new project, there was only one choice for power. Under the hood sits a 3.0 L … Read more

BMW Z4 with a Twin-Turbo Porsche V8

BMW Z4 with a Twin-Turbo Porsche V8

Henrik Ryberg competes in Sweden Time Attack Series in the Pro Class with his special BMW Z4 E86. He started the project in 2015 and has done all the work himself. For the past few seasons the Z4 was powered by built 2.6 L RB26 inline-six that made 683 hp and 869 Nm on 1.9 … Read more

BMW Z4 with a Dodge SRT-10 V10 Update

BMW Z4 with a Dodge SRT-10 Viper V10

When I was viewing the build gallery for this BMW Z4 project a few of the older photos seemed familiar. So I searched our articles and found this one from 2012 when the project had just started. Unfortunately I forgot to follow-up on the project’s progress but I am happy to see it turned out … Read more