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1975 Porsche 911 3.0 RSR
s/n 9115609122
Period Livery with White Interior

Since its inception the 911 has been modified by the factory for various competition uses including endurance circuit racing, rallying, sprint races The 911 is often cited as the most successful competition car ever, and the normally aspirated 911 Carrera RSR in the mid 1970 won major world championship sports car races such as Targa Florio, Daytona, Sebring and Nürburgring. Factory built Carrera RSR 3.0s were sold to established and proven race teams for competition both Stateside and on the European continent

This example was sold new to Jim Busby by Vasek Polak Racing. Included with the car is documentation from Porsche confirming this as a factory built 1975 3.0 RSR racecar. Busby used the car throughout the 1975 season with considerable success. At the end of the 1976 the car was sold to Monte Shelton who modified the roll cage and installed more advanced Schrick cams bringing the horsepower output to 365bph and tub weight down to 2,000 lbs. Shelton sold the car to privateer competitor Robert Frostrom who continued to race the car in professional events through the 1978 season. Frostrom sold the car onward to Bill Ferran who used it in Sports Car Club of America national level events in 1979 winning twice at Moroso from the pole position. In 1980 and 1981, wearing 935 style bodywork, the car again saw competition in a professional venue when it was campaigned at the famed 12 Hours of Sebring by Ferran/Bond/Refenning finishing 10th in class.

Racing History:

1975:
04/5: Laguna Seca: Busby; Heat 1; 9th. Heat 2, 8th.
10/5: Riverside 6-hours: Busby/Hiss; 8th.
26/5: Lime Rock: Busby; Heat 1; 9th Heat 2; 8th
01/6: Mid-Ohio: Busby; 9th
04/7: Daytona: Busby; 7th
20/7: Mid-America: Busby; 7th
24/8 Mid-Ohio; Busby/Sprowls/Kirby; 7th
30/11: Daytona: Busby; 8th

Sold to Monte Shelton. Acid-dipped shell, less than 2000 pounds. Modified rollcage. Schrick cams-365 bhp, 3.0-litres

Sold to Robert Frostrom, Salisbury Maryland.

1976:
09/5: Pocono TA: Frontstrom; 18th
30/5: Nelson Ledges TA: Frostrom; 17th
13/6: Portland TA: Frontstrom; 8th
24/7: Road America TA: Frostrom; 13th
15/8: Pocano: Frostrom; 15th
22/8: Mosport TA: Frostrom: 17th.

1977:
31/7: Hallett Tal Frostrom/Woods; 15th.
14/8: Pocano Frostrom; 7th
28/8: Mid-Ohio: Frostrom/ J.Wood , 14th.
27/11: Daytona: Frostrom/ J. Bauer 61st NR.

1978:
16/4: Road Atlanta; R. Frostrom, #51;34th
?/12: Sold to Bill Ferran. 935-style body, 16 spare wheels, rear quarter panels were from Gregg’s “long-tail” 1975 car.

1979:
Four regional SCCA races. Four national races.
Sebring
Savanna (2)
Sebring Road Atlanta
Moroso (2)- Won every race entered from pole position
Daytona – qualified 3rd. DNF

1980:
Sebring 12-Hours: Ferran/Bond/Refenning; 29th/10th in class

1981:
Sebring 12-Hours: Ferran/Northam/Soldevila. #29; 57th NR
Rebodied back to RSR. 2.8 Litre, then 3.0 litre engine

Sold to Ray Stuart in Monterey

1985: Sold to Kerry Morse

1986: Sold to Lewis Bernat

2000: Sold to Dave Mohlman

Sold to Phil Bagley

Sold to Current owner

The car has recently seen a comprehensive restoration returning the car to original RSR specifications. Since restoration the car has seen successful outings in the vintage racing world at the Monterey Historic Automobile Races in 2006, 2007, and 2008 among other events. The car has approximately 10 events on the chassis since restoration, zero time on a fresh valve job, approximately 6 hours on the lower end rebuilt by David Loop in Monterey, California, and equal time on a rebuilt transmission. Other recent work includes: a complete professional chassis set-up with new rear shocks and springs, front springs, and new rear sway bar. New steering shaft bushings and bearings were installed, the distributor was rebuilt with a new ignition rotor, rebuilt front strut cartridges, installed new steering rods & links, replaced rear trailing arm (front) pivot bearings, and the CV joints serviced.

Today the car can be described as a very well prepared and maintained example with excellent racing cosmetics fit to be raced or shown. The talented team at D’Motorsports of Monterey, California have serviced and raced prepped the car in a no expense spared fashion throughout the current ownership period.

With this example comes a large spares package including original engine case, four mounted wheels, four extra tires, and extra bodywork.

Spares package:
1. Original 3.0 Case Halves (used)
2. Original Orange Recaro Race Seat With Mounting Brackets
3. Original Cam Shafts with Nuts and Spacers (used)
4. Original Cam Towers (used)
5. Original 15” Flat Spoke Mag Centerlock Wheels, Fronts: Avon 10.5/23.0/15 (new), Rears: Avon 13/25/15 (used 1 session)
6. 8 - Centerlock Nuts #09.21.046 (4-new, 4-used)
7. Avon Race Slicks (F)10.5/23.0-15 (R) 13.0/25.0-15 (used)
8. Original Shifter Assembly #911 424 141 00 (used)
9. Original Fire Suppression System With Mounting Hardware
10. Original Modified Solid Motor Mounts (used)
11. Original Gears: 23:29, 25:26, 28:23, 20:32 (used)
12. Original Springs Front and Rear (used)
13. Original Rocker Arms and Pins (used)
14. Original Timing Chain Covers (used)
15. Original Timing Chain Oil Lines (used)
16. Master Cylinder (new) with Seal Kit (used)
17. Complete Set of Hood Pins (new)
18. Throw Out Bearing Lever (used)
19. Exhaust Flange Gaskets (2 sets)
20. 1 pint White Touch Up Paint
21. Touch Up Vinyl Black & Burgundy
22. 2 qts Swepco 306 Engine Oil
23. Mahle Oil Filters OC-54 (new x2)
24. Pedal Bushing Kit (new)
25. Spark Plugs #662 A59C (x4) #661 A57C (x4) (new)
26. Spark Plugs #R-59G (x12) #R-59C (x12) (used)
27. Brake Pads Pagid #E120342010 (3 sets: 2 used, 1 new)
28. Brake Pads Porterfield #7725.93.18 (2 sets, new)
29. Belt #999 192 176 50 (new)
30. Belts (used) (x3)
31. CV Joint #90133203200 (new)
32. CV Boot Kits (new) (x2)
33. Fuel Pump #90160810500 (used)
34. Axle Shaft Gasket #90133229700 (used)
35. Tie Rod Ends (used) (x2)
36. Sway Bar Links (used)
37. Original Upper Strut Mounts (used)
38. Wheel Seals (used) (x2)
39. Exhaust Gaskets with Fasteners (used)
40. Original Rear Control Arm Bushings (used)
41. Steering Column Shaft Bushing/Bearings (used)
42. Door Handle Parts (#90153106700) (used)
43. Door Striker Plate (used)
44. Original Rearview Mirror
45. Seat Belt Bracket
44. Original Engine Area Fiberglass Bracket/Duct (used)
45. BBS Wheel Fasteners (new)
46. BBS Wheel Weight Alignment Tool

Please be advised that this example is available for immediate sale and the pricing is negotiable for a quick closure. We are happy to make the car available for inspections at our showroom in Emeryville, and can recommend several local Porsche experts familiar with the historical provenance and mechanical details of the 3.0 Litre RSRs. Please call with interest or questions.

The above vehicle information is complete and accurate to the best of our knowledge at the time it is posted to this website. Corrections or additional information is always appreciated. All advertised prices exclude government fees and taxes, any finance charges, any dealer document preparation charge, and any emission testing charge. Vehicles are subject to prior sale. All advertised to be true but not guaranteed. We assume no liability for errors or omissions.