1986 Porsche 911 (930) Turbo 'Flachbau' Conversion - 36,500 Miles

KEY FACTS

• A thrilling 1980s ‘poster car’, which was converted to flatnose specification using original Porsche factory parts shortly after delivery, and boasts a number of substantial performance upgrades.
• Under the engine cover is a rebuilt 3.3-litre turbocharged flat-six, capable of producing close to 400bhp, coupled to a four-speed manual transmission.
• This 930 Turbo was converted and mechanically enhanced by Dage Sport Ltd in the early 1990s.
• More recently, it has been treated to an extensive programme of restoration including to the drivetrain, with Porsche specialist Rindt, at a cost of over £100,000.
• The odometer shows just 36,500 miles, which is supported by the service history.

EQUIPMENT AND OPTIONS

• Finished in Falsen Green, it features a Linen leather interior and rides on a set of 16-inch Fuchs alloy wheels.
• In addition to its modified bodywork, this 930 has also been fitted with an enlarged intercooler, an upgraded fuel system, a genuine Porsche 935 boost gauge, an uprated wastegate and a variable boost controller, allowing the engine to produce close to 400bhp.
• The seller notes that as part of the recent engine rebuild in 2024, it now runs slightly more boost than a standard 930 SE / 930 LE.
• Its stopping power has been enhanced via a set of upgraded GT3 brake callipers, and the suspension components have also been upgraded to a fully adaptive Tractive system, and then tuned by specialist, Center Gravity
• The interior has had modern touches added including a period-look Blaupunkt bluetooth radio and upgraded speakers.
• The car will be accompanied by original handbooks, as well as documentation of its service history, a number of invoices for its maintenance and various past MOT test certificates.

CONDITION

• Please refer to the photo gallery to assess the exterior and interior condition.
• Specific notes from the seller include: The car underwent a body-off strip and repaint in 2024 by Rindt Vehicle Design, and now features full spray-on PPF.
• The seller also notes that the underside has been fully wax-sealed and the T seat heating elements have been replaced.

SERVICE HISTORY

• The seller states that it was most recently serviced in December 2025 at 36,200 miles at Rindt Vehicle Design, which included engine oil and filter, fitment of new electric window switches, and replacement of a brake line.
• A full inspection and set up of the suspension geometry was carried out in August 2025 at 35,475 miles by renowned specialist Center Gravity.
• An invoice from Rindt dated January 2025 covers the extensive restoration work, including bare-metal repaint and engine rebuild, at a total cost of £104,774.
• During the seller’s four years of ownership, they have spent around £6,000 on the car’s maintenance, including rectification of minor electrical issues and a clutch replacement in 2017.

Dates and mileage

• Dec 1986 - Heddel and Deeks - 998 miles
• Feb 1988 - Heddel and Deeks - 6,739 miles
• Dec 1988 - Bradshaw Garage - 10,758 miles
• Jun 1991 - Sytner Nottingham - 13,056 miles
• Jan 1992 - PCT Birmingham - 16,368 miles
• Nov 1992 - BR Motorsport - 19,856 miles
• Dec 1993 - Supersprint Cars - 20,616 miles
• Mar 1995 - Supersprint Cars - 21,006 miles
• Jun 1996 - Supersprint Cars - 21,555 miles
• Aug 1997 - Supersprint Cars - 22,105 miles
• Jun 2000 - PCT Cars - 22,616 miles
• Apr 2001 - PCT Cars - 24,844 miles
• Jun 2004 - PCT Cars - 25,601 miles
• Apr 2006 - PCT Cars - 27,219 miles
• Apr 2008 - PCT Cars - 28,518 miles
• Jun 2010 - PCT Cars - 28,525 miles
• Apr 2013 - PCT Cars - 29,808 miles
• Feb 2016 - PCT Cars - 30,012 miles
• Apr 2017 - JZM - 30,631 miles
• Dec 2020 - RPM Technik - 32,191 miles
• 2024 - Rindt Vehicle Design - ~35,000 miles (engine rebuild)
• Dec 2025 - Rindt Vehicle Design - 36,200 miles

SUMMARY

Converted to ‘flatnose’ specification in the early 1990s and upgraded to produce up to 400bhp, this 1986 Porsche 930 Turbo is an exciting and involving modern classic supercar. Supported by an impressive history file, and benefiting from restoration work totalling over £100,000 completed in 2024, this 911 would make a stand-out addition to any enthusiast’s collection.

Descriptions are provided by the seller and, to their knowledge, are accurate and not misleading. Buyers must satisfy themselves of the description’s accuracy, and independent research is strongly advised. Enquiries should be raised in the comments section and any inspections arranged before bidding.

Classic and collectible vehicles may have had cosmetic or bodywork repairs that are not visually apparent. Photographs may not accurately reflect colour or condition, so buyers should confirm key details directly with the seller. Unless stated otherwise, you must assume that any cherished, personalised, or heritage vehicle registration is not included in the sale of a car or bike. Please see our Terms and Conditions for full details.

All UK-registered cars and motorbikes on Collecting Cars are run through an online HPI check. On the HPI report, this vehicle shows no insurance database markers for damage or theft, and has no finance owing. There is a Category D insurance marker related to a previous registration plate, but this is stated to be when it was on a different 911 Turbo, which tallies with the dates shown on the HPI record.