1985 Porsche 911 Turbo

Lot details
Registration No: C390PUJ
Chassis No: WP0ZZZ91ZGS103212
Mot Expiry: Aug 2012

Winner of the 1999 Intermarque Championship

In the early '70s, Porsche had designs on racing a turbocharged version of the 911, in support of which they planned to create a homologation special along the lines of the Carrera 2.7 RS. A change in the rules negated the need to sell a precise number of street legal race vehicles, but the company decided to continue with the project anyway - the Porsche 911 Turbo, or 930, was born. The 930 was introduced at the Paris Salon of 1974 and produced from 1975 to 1989, during which time it was the fastest production car available on the German market. It was based around the Carrera RS 3.0, the engine from which was modified courtesy of turbo technology originally developed for the 917/30 CAN-AM cars. Initially, power output was 260bhp, but from 1978 it was increased to 300bhp by raising the engine capacity to 3.3-litres. To accommodate the extra performance over the RS 3.0, the 930 sported revised suspension, larger brakes and a robust, four-speed gearbox. In order to help deliver the power to the road, a 'whale tail' rear spoiler was fitted and a wider rear wheel/tyre package was squeezed under specially flared arches.

This is no run-of-the-mill 930, but the 1985 3.3-litre example that won the 1999 Intermarque Championship. The engine is said to have been freshly overhauled by respected specialist Richard Chamberlain with new pistons since when it has only run on the rolling road where it registered 390bhp. It is fed by a single, recently refurbished K29 KKK turbocharger - this has adjustable boost but is currently set at 0.9 bar. The G50 gearbox was recently serviced and features switchable external oil cooling. The Porsche has Smart Racing Products 935 suspension, adjustable dampers and uprated brakes. A mighty race or track day weapon now finished in Dark Blue, it comes complete with a fresh MOT and set of slick-shod BBS alloys.