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1970 Porsche 911 ST — SOLD
Chassis No.: 911 130 1148
REQUIST A printable PDF document with Photos

Ginther LeMans Entry

In 1970 Porsche homologated their 911T in both the Group 3 and Group 4 GT classes. They used the 911T because it weighted less than the 911S and its engine used the same intake and exhaust valve sizes as the 911S. The result was a race car that weighed less than the S but with the same power.

New rules for the GT classes allowed the fender flares to be increased by two inches from the stock configuration to accommodate larger wheels and tires. With the larger 2195 cc displacement the cars were in 2.0 to 2.5 liter class where they could increase the displacement up to the class limit by using a larger bore.
These cars were known by their internal designation of 911ST. From 1970 through 1972 a series of these cars were built for both rallying and GT racing. The first 911STs built to compete had 2.3 liter engines (2247 cc, which was 85 mm bore and 66 mm stroke) and then they were expanded to 2.4 liters (there were two versions 2380 cc 87.5 with mm bore and 66 mm stroke and 2395 cc with 85 mm bore and 70.4 mm stroke) and finally 2.5 liters engine (again their were two versions 2492 cc with 86.7 mm bore and 70.4 mm stroke and 2464 cc with 89 mm bore and 66 mm stroke) The cars built in 1970 and 1971 utilized the 66 mm stroke will most of the later cars built in 1972 used the 70.4 mm stroke.

The 911ST was different from the standard production model in that thin gauge sheet metal was used for the roof panel, for both rear side panels and for the seat pan and interior back and side panels. In the interest of weight saving they also deleted the seat slide supports on the central tunnel, all standard seat belt mounting points, the heater ducts, the ashtray, the glove box door, and the tubes for the front and rear hood latches as well as the front and rear latch mechanisms. The decorative under door and bumper moldings were also left off, as were the fog light recess covers, front torsion bar protectors, the rear torsion bar covers and the passenger side sun visor. Sheet metal joints were not filled, none of the sound deadening material was used and even the paint was kept as thin as possible to help keep the weight down.

They also made parts available to further modify and lighten these 911s’s such as a fiberglass hood, front fenders, and front and rear bumpers, aluminum skinned doors with a steel frame, and Plexiglass for all windows except the windshield which was also available in thinner light glass. Optional 80 liter or 110 liter fuel tanks were available with a large filler neck up through the front hood were available in place of the standard 62 liter tank with its fender mounted filler. A strut tower brace was installed to add stiffness to the front trunk area. For racing 7" and 9" by 15 inch wheels were available.

The significance of the Ginther 911ST was that it was the first of what became a number of Porsches that were purchased by Americans prepared and then taken back to Europe to race, mostly at Le Mans. Richie Ginther Racing's All American was an entry at Le Mans in 1971 with Alan Johnson and Elliott Forbes-Robinson as their drivers. Ginther called his 911 ST Sloopy Jr. and Sloop ran with a 2.4 engine configuration in the 1971 Le Mans race. Ginther was a master at getting a little more out of production Porsches because he had been preparing 911s and 914s for SCCA racing here in the US for a few years before their 1971 Le Mans effort. As a result he had some tricks for the 911 that they hadn’t seen in production based race cars Europe before. Ginther replaced the rubber suspension bushings with Teflon suspension bushings of their own manufacture which offered more precise suspension alignment. They also used stiffer torsion bars which improved the cars handling. Harold Broughton who did the engines for Ginther prepared the engine for their Le Mans effort. Their efforts paid off for they were the fastest qualifier in the Group 4 GT class and the fastest of 20 GT Porsches entered. Unfortunately they had mechanical problems during