Legacy Metrics

1978 Porsche 911 Turbo (Type 930)

9308700715roadGermany
Engine
Short-stroke 3.2L turbocharged flat-six with forged pistons, twin-plug heads, titanium valve retainers, ceramic-coated exhaust manifold, KKK K27 turbocharger at 0.8 bar boost
Colour
Dark green metallic

A 1978 Porsche 911 Turbo (Type 930) that has been comprehensively modified from stock specification. Its 3.3-litre engine has been replaced with a short-stroke 3.2-litre unit fitted with Mahle forged pistons, twin-plug heads, titanium valve retainers, and a KKK K27 turbocharger fed through a ceramic-coated exhaust manifold. Cosmetic work includes Dark Green Metallic paint, black leather with tartan inserts, RUF instruments, KW V3 coilover suspension, and fifteen52 Magnus Walker forged wheels. Believed to show under 31,000 miles.

Ownership

  1. Auction sale
    Estimate US$110,000 – US$140,000

    RM Sotheby's catalogue lot →

Competition

No competition history extracted from the catalogue.

Maintenance & restoration

  1. Engine rebuild

    Factory 3.3-litre turbo motor replaced with a short-stroke 3.2-litre variant, featuring Mahle 98mm forged pistons, twin-plug cylinder heads, new valves with titanium retainers, a ceramic-coated turbo exhaust manifold, and a KKK K27 7200-series turbocharger set to 0.8 bar boost.

  2. Modification

    Suspension replaced with an adjustable KW V3 coilover kit; wheels swapped for fifteen52 Magnus Walker Outlaw 001 forged units with branding removed.

  3. Bodywork

    Exterior refinished in Dark Green Metallic; rear reflector deleted and low-profile inset turn indicators fitted; yellow H4 headlight assemblies installed. Interior retrimmed in black leather with blue-and-green tartan cloth inserts, RUF gauges fitted, and a three-spoke steering wheel installed.

  4. Service

    Recent servicing and miscellaneous mechanical work carried out, leaving the car in ready-to-drive condition.

Are you the owner of this car?

This car's public record is built from its auction and competition history. Register your ownership and privately add your own records to make it a verified Legacy Metrics passport — provenance that backs your car's value at sale and gives your insurer evidence to price against. Roy reviews and verifies every registration personally.

Each chassis record is compiled from public auction archives and links to its source material. Ownership, competition and maintenance entries are extracted from those catalogue listings by an LLM, which can make mistakes — please contact us with any corrections. The summary is Legacy Metrics’ own writing; we do not reproduce catalogue text.

“Full” and “partial” documentation labels indicate how well each entry is corroborated in the underlying sources, not an audit of the car’s physical paperwork. Names of recent or living owners are withheld for privacy.