Porsche 911 1973 RSR LHD

For the privateer in the mid-1970s who wanted to go sports car racing, and in particular compete successfully at the famed 24 Hours of Le Mans, there was really only one viable option, the Porsche RSR. Introduced in 1973, the RSR was a factory-built racing car based on the 911 chassis. Weighing 900KGs, these cars were initially fitted with a 2.8 litre engine that grew to 3.0 litres by the end of 1973. They dominated by winning three international and seven national championships in the first season of racing, a feat that has not been repeated by any other sports car.

Today as in period, these Group 4 racers are a highly competitive machine for historic racing and events such as the Tour Auto.

This example we are offering for sale is a period specification evocation of the original cars. The brief was to build a competitive period FIA car with the build quality of a fully restored road car.Built on a genuine LHD 1973 911 platform, the car has been created by respected historic Porsche specialist Steve Winter from JAZ Motorsport to comply with current Historic regulations.

Great care has been taken to fit period historic parts where possible and a total of over £150,000 has been invested in the build.

Bruce Cooper of Sportwagen was entrusted to create a faithful reproduction of the 2.8 RSR body shell in steel with patterns being taken from a genuine period car to ensure accuracy. Like the original, lightweight bumpers and ducktail are fitted in glassfibre.

The 3.0 engine was homologated in late 73 so this was the capacity chosen for the engine. Neil Bainbridge from BS Motorsport has extensive knowledge of running historic 911's and so was a natural choice to dyno the engine and he provided some solid advice during the final build. The engine has 3.0 Mahle barrels and pistons, Carrillo rods, twin spark ignition, replica slides and produces an honest 320hp on the BS Motorsport dyno, similar to genuine cars in period. The exhaust system has been specifically designed to be under 105db without a significant loss in power, this would allow for any track day use.

The car was finished in 2013 and set up at Silverstone with Chris Snowdon from CSR at the wheel. This was followed by a successful first outing at the Spa Classic in May of 2013.

Due to a change of plans this stunning car is now offered for sale at considerably less than the build cost.

Road registered and supplied with FIA papers, this RSR is on the button and would make a competitive entry into championships such as the World Sportscar Masters as well as numerous European events including Tour Britannia or Tour Auto and is of course a fraction of the investment required for an original. In total this amazing RSR has had 5 hours of running since build completion.

Built to FIA 3053 Homologation for FIA HTP papers:

Body:

1973 2.4E chassis number 911 320 0876

Fully stripped and repainted, FIA roll cage based on original RSR with correct welding points, body strengthened to RSR specification.

Steel wings profiled from a factory 2.8 RSR

Fiberglass RSR front and rear bumpers with additional front splitter

Electronic engine cut out

Electronic fire extinguisher switch

Bonnet fuel filler

Interior:

Two Recaro adjustable seats with Schroth endurance harnesses tied to rear harness bar

RSR lightweight interior

Porsche 10,000 rpm tachometer

Short shift kit

Electronic engine cut out

Electronic fire extinguisher

ATL custom made 100 litre fuel cell with internal swirl pot and lifter with new certificate

Suspension and Brakes:

Fuchs 9 x 15 front wheels with Michelin TB15

Fuchs 11 x 15 rear wheels with Michelin TB15

Correct steel RSR rear trailing arms

Bilstein RSR specification front and rear dampers with coils overs

EB Motorsport RSR front 24 mm tubular anti-roll bars with correct 5-position adjustment (as used by World Sportscar Champion Mark Bates)

EB Motorsport RSR rear 22mm tubular anti-roll bars with correct 5-position adjustment (as used by World Sportscar Champion Mark Bates)

FIA homologated 3053 Porsche 930 front and rear brake calipers

Porsche 930 discs

Pagid RS29 Fronts Pagid Black RS2/4 Brake pads

Genuine SCRS Adjustable Pedal Box

Engine and Gearbox:

FIA homologated 3053 (930 101 104 4R) 3.0 litre crankcase

320hp on BS Motorsport dyno

RSR Engine mount, only 5 hours on the engine

Porsche mechanical fuel pump type 0408-126-002 s/n 80917867 converted to 3.0 RSR by Manfred Reugen

EB Motorsport 3.0 litre RSR MFI 46mm Slide Throttles (as used by World Sportscar Champion Mark Bates)

Fuel pressure gauge and adjuster

Twin Porsche 3.0 litre RSR coils

Twin Porsche 3.0 litre RSR spark boxes

Optional rev limiter (not activated)

Twin spark distributor

Engine bay starter

Balanced crank

Carrillo rods

3.0 litre Mahle pistons, rings and 95mm barrels

Twin spark heads with 49 mm inlet valves and 41.5 mm exhaust valves

Porsche motorsport RSR valve guides and standard genuine rockers

Porsche 3.0 Litre RSR sprint cams

Porsche 964 oil pump

Porsche 915 Gearbox with lowered ratios on 3rd, 4th and 5th

Porsche Carrera oil pump with front mounted gearbox oil cooler

Porsche ZF 831 limited slip differential

Correct RSR engine covers

Correct RSR small fan and housing