Porsche 911 R/T Conversion Coupe

It didn’t take long for the Porsche Factory to recognize the competition potential of the new 911 – barely four months after its introduction in 1965, a 911 enjoyed a trouble-free run in the Monte Carlo rally, winning the GT Class and finishing 5th overall in appallingly snowy conditions. Later the 911 S with Elford/Stone won the Lyon, Tulip and Geneva contests to become the European GT Rally Champions. Race track victories soon followed as 911 S models won the GT Class of classic endurance events like Sebring, Daytona, Spa, Nürburgring and the Targa Florio. By the middle of 1967, Porsche had a new weapon in the armory: the 911-R with the “R” standing for Racing. Only 22 of these lightweights (800 kg) were built with three retained for factory entries and 19 sold to “approved” private teams.

As is typical with the best Porsche projects, a construction concept has to be established. In this case, it began with one of Steve’s 3.3 liter race engines and the vision of the classic narrow body factory 911 R racer. The donor car is a 1971 European 911-T which was serviced by Auto Associates for over 20 years. This was originally a white with black interior A/C car – the latter being an important aspect as it turns out.

The body conversion to 911 R spec included attention to the front and rear grilles, bumpers and tail lamps. Slight rear fender flares now allow fitment of the desirable 7X16" rear alloy wheels. The interior was backdated to incorporate a 1967/68 dash with 1970 dash vents, rebuilt gauges, 356-style close weave carpeting, lightweight cloth insert race seats on Recaro rails, a 2001 Porsche radio with hidden door speakers and a sub-woofer under the right side foot well. More importantly, since the car was designed for high speed work in hot climates (like Arizona), the car’s factory air was updated with an extra hidden condenser and adapted for R134 as well as space age insulation under the head liner.

Fully stripped, the body was painted in Porsche Arctic White, and the under carriage is also detailed and painted. Chassis tweaks include new Bilstein shocks, 21/29 mm torsion bars and rebuilt SC style Porsche brakes. Last but not least, the engine is a full race 3.3 short stroke twin plug/twin distributor with PMO downdraught carburetion developing 340 bhp and exhausting through a custom 911 R-style system. A front mounted cooler safeguards the oil temperature, and the engine has been detuned to run on 91-94 octane pump gas. Nevertheless, according to the owner, this lightweight 911 “RT” delivers “explosive acceleration with the 0-60 time estimated at 4.5 seconds!”

This car was auctioned off by RM Auctions in January of 2010 at the Arizona Biltmore Resort & Spa, Phoenix, Arizona.

340 bhp, 3.3 liter twin plug engine on PMO intake, rebuilt 915 type transmission with short gears and LSD, R-style bodywork, front/rear grilles, bumpers and tail lamps with molding deletes, 6 and 7X16" alloy wheels with Michelin Pilot Sport tires. Approx. curb weight: 2,300 lbs. Wheelbase: 89.3"

Source: RM Auctions

Gallery: Porsche 911 R/T Conversion Coupe