Subaru Impreza with a Twin-Turbo Flat-Six

1993 Impreza with a twin-turbo EG33 flat-six

Joe Hanna built his 1993 Subaru Impreza alongside the talented mechanics at his shop ASF Machine in Grand Junction, Colorado. Joe set out to turn the sedan into a monster race car by adding two more cylinders and a lot more boost. Under the hood sits a 3.4 L EG33 flat-six with custom ground camshafts, LS2 coil packs, dry sump system, and two Precision 5858 turbochargers. The goal is to make 1,000+ horsepower and about 800 lb-ft of torque which should push the 2,400 lb car pretty fast. The drivetrain consists of a JDM STI Version 7 six-speed manual transmission with a Competition Clutch twin-disc clutch, Driveshaft Shop one-piece aluminum driveshaft and 800 hp rear axles.

1993 Impreza with a twin-turbo EG33 flat-six

1993 Impreza with a twin-turbo EG33 flat-six

1993 Impreza with a twin-turbo EG33 flat-six

1993 Impreza with a twin-turbo EG33 flat-six

1993 Impreza with a twin-turbo EG33 flat-six

1993 Impreza with a twin-turbo EG33 flat-six

Source: Wheel Well and ASF Machine via ESD reader

6 Comments

  1. Steven T Donald

    Do y’all have dyno numbers on it? Who fabbed up the dry sump oil system? Any work to the lower end other than the crank? Who makes the crank?

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