Porsche 911 RSR Type G IROC group 4 (1974)
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Source
Chassis numbers here and here and here and here
Click here for history/photoes
Porsche 915 transmission here and here
RSR = Rennsport Racing (Race Sport Racing)
Specifications
51 units built, all converted from Porsche 911 RS 3.0
Click here for fuel injection manual
Click here for parts list
Click here
Click here and here for RSR 3.0
Homologation number: 3053
Homologation start: 1/7/1973
| Type | Porsche Type 911/75, boxer 6 cyl (180o), 4 stroke, petrol engine | located longitudinally behind rear axle |
| Capacity | 2996cc | |
| Bore x Stroke (mm) | 95.0 x 70.4 mm | |
| Compression ratio | 10.5:1 | |
| Output power - torgue | 330 bhp / 246 KW @ 8000 rpm | 314 Nm / 232 ft lbs @ 6500 rpm |
| Main bearings | forged steel crankshaft with 8 plain main bearings 57mm diameter, 52mm big end journal diameter | titanium connecting rods, 127.8mm distance center to center, 56mm big end bearing diameter |
| Materials | block: magnesium alloy, 124.5mm bore spacing, Nikasil cylinder lining | cylinderhead: aluminium alloy |
| Cams/valves | 2 x 1 overhead camshafts (SOHC), chain driven | 2 valves/cyl. - 12 valves total. 49mm inlet valve diameter, 41.5mm exhaust valve diameter. |
| Aspiration | natural with Bosch "pulsed injection" D-Jetronic mechanical Fuel Injection system using Kugelfischer PL Injection pump. Click here and here | |
| Ignition | electronic, twin spark, firing order 1-6-2-4-3-5 | |
| Cooling system | aircooled | |
| Lubrication system | dry sump with 1 oil cooler | 11 lt |
| Transmission | ||||
| Type | rear wheel drive | Porsche 915 (Tutorial 1, Tutorial 2), 5 speed gearbox | ||
| Gearbox ratios | 1st: 3.182/1 (35/11) 2nd: 1.778/1 (32/18) 3rd: 1.125/1 (27/24) 4th: 0.821/1 (23/28) R: 3.325/1 |
1st: 3.182/1 (35/11) 2nd: 1.834/1 (33/18) 3rd: 1.261/1 (29/23) 4th: 0.962/1 (25/26) 5th: 0.759/1 (22/29) R: 3.325/1 |
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| Diffrential ratio | 4.428/1 (31/7), 3.857/1 (27/7), 5.286/1 (37/7) | spiral bevel gears limited slip rear differential | ||
| Clutch | dry single disk 225mm diameter | |||
| Chassis-body | ||||
| Type | steel monocoque 911 Type G (1974) and H (1975) series chassis. 2 door coupe steel bodyshell with steel bumpers | |||
| Front suspension | mc pherson strut with lower L wishbone, coil springs, Bilstein telescopic gas shock absorber and anti-roll bar 15mm diameter | |||
| Rear suspension | trailing arm with torsion bars, Bilstein telescopic gas shock absorber and anti-roll bar 15mm diameter | |||
| Steering system | rack and pinion | |||
| Brakes | ventilated disks all around. Ventilated calipers front and rear | dual circuit with servo | ||
| Dimensions | ||||
| length: 4,350 mm (171.3 in) | width: 1,896 mm (74.6 in) | height: 1,300 mm (51,2 in) | ||
| wheelbase: 2,272 mm (89.4 in) | front track: 1,402 mm (55.2 in) | rear track: 1,422 mm (56 in) | ||
| Rims - tires | 9 x 15" / 11 x 15" | 230/600 - 15" / 260/600 - 15" | ||
| Weight | 900 kg, f/r distribution 43% / 57% | |||
| Fuel tank | 110 lt | |||
drag coefficient, 0.43
frontal area, 1.91 m2
Results in WSCC
Season
Group 4 classification is noted in brackets
Group 4 classification is noted in brackets
| Car entry, chassis number | Car number/ result | ||||||||||
| Monza | Spa | Nurb | Imola | Le Man | Zeltweg | Watkins Glen | Le Castellet | Brands Hatch | Kyalami | ||
| Team | 1000km | 1000km | 1000km | 1000km | 24h | 1000km | 6h | 1000km | 1000km | 6h | |
| Gelo Racing, 911 460 9065 | #86, 12th (3rd) | #53, 4th (1st) | #45, 12th (2nd) | #148, acci dent | #35, 11th (3rd) | #58, 9th (2nd) | #55, 11th (1st) | #20, 6th (2nd) | |||
| Gelo Racing, 911 460 9040 | #87, 9th (1st) | #54, 11th (8th) | #44, acci dent | #149, eng ine | #53, acci dent | ||||||
| Gelo Racing, 911 460 9077 | #150, in entry list | #64, igni tion | #34, 12th (4th) | #57, 8th (1st) | #54, 13th (2nd) | #21, 7th (3rd) | |||||
| Gelo Racing, 911 360 0847 | #72, eng ine | ||||||||||
| Bonomelli Squadra Corse, 911 360 1159 | #88, 13th (4th) | #64, 20th (7th) | #143, stee ring | #41, in entry list | |||||||
| Porsche Club Romand, 911 460 9052 | #89, dnt qualify | #45, 9th (5th) | #48, 22nd (9th) | #141, eng ine | #66, 7th (3rd) | #37, 17th (8th) | #45, valve | #59, 16th (4th) | |||
| Porsche Club Romand, 911 460 9058 | #91, dnt qualify | #44, 7th (4th) | #47, 14th (4th) | #142, eng ine | #58, valves * * | #36, 16th (7th) | #44, wheel bearing | ||||
| Sepp Greger, 911 460 9078 | #92, 19th (7th) | #46, dnf | #50, 24th (11th) | ||||||||
| Brescia Corse | #93, dnt qualify | #146, in entry list | |||||||||
| Joly Club, 911 460 9074 | #94, 18th (6th) | #59, dnf | #144, 6th (2nd) | #31, 18th (9th) | #51, 12th (5th) | #58, in entry list | |||||
| Kremer Racing, 911 460 9038 | #95, 11th (2nd) | #41, 6th (3rd) | #43, 16th (5th) | #152, 5th (1st) | #68, eng ine | #32, 10th (2nd) | #48, in entry list | #51, 15th (3rd) | |||
| Kremer Racing, 911 460 9091 | #96, 14th (5th) | #40, 5th (2nd) | #42, 21st (8th) | #153, gear box | #49, in entry list | #52, eng ine | |||||
| Kremer Racing, 911 460 9110 | #42, in entry list | #49, in entry list | #52, 10th (3rd) | ||||||||
| Kremer Racing, 911 460 9067 | #51, 23rd (10th) | #41, 13th (5th) | #47, 14th (6th) | ||||||||
| Kremer Racing, 911 460 9063 | #33, 9th (1st) | ||||||||||
| STP Schweden | #43, in entry list | #46, 18th (6th) | |||||||||
| Max Moritz, 911 460 9073 | #47, in entry list | #53, 28th | |||||||||
| Max Moritz, 911 460 9060 | #56, dnf | ||||||||||
| Robert Buchet, 911 460 9070 | #41, 13th (3rd) | #61, drive shaft | #38, eng ine | #40, oil leak | |||||||
| Robert Buchet, 911 460 9051 | #54, 15th (7th) | ||||||||||
| Anton Fischhaber/ Dieter Schmid | #52, dnf | ||||||||||
| Team Västkuststugan - Porsche Kubero, 911 360 1045 | #54, dnf | #56, 11th (4th) | |||||||||
| Team Västkuststugan - Porsche Kubero | #55, dnf | ||||||||||
| Hasselbecker-Racing-Team, 911 460 9063 | #57, 27th | ||||||||||
| Wolfgang Kauwertz/ Klaus Drees, 911 460 9061 | #58, 26th | ||||||||||
| Sixtant Racing-Team | #60, 29th | ||||||||||
| Gante-Racing | #61, 30th | ||||||||||
| Bob Wollek/ Jean-Marc Seguin | #151, 7th (3rd) | ||||||||||
| Pierre Mauroy/ Anny-Charlotte Verney/ Martine Rénier, 911 460 9031 | #59, 13th (7th) | ||||||||||
| Louis Meznarie | #60, acci dent | #59, 16th (8th) | |||||||||
| Ecurie Francorchamps, 911 460 9072 | #62, clutch | #56, gear box | |||||||||
| Jean-Claude Lagniez/ Gérard Méo, 911 360 1196 | #63, 14th (8th) | ||||||||||
| Claude Haldi, 911 460 9029 | #69, 12th (6th) | ||||||||||
| ASA Cachia - Bondy, 911 460 9059 | #70, 10th (4th) | #50, dnf | |||||||||
| Toad Hall Motor Racing, 911 460 9049 | #73, 20th | #5, 10th (8th) | |||||||||
| Toad Hall Motor Racing | #6, in entry list | ||||||||||
| Scuderia Basilea, 911 460 9069 | #30, in entry list | ||||||||||
| Hanno Maurer-Stroh/ Werner Ausserhofer, 911 460 9064 | #39, dnf | ||||||||||
| Palladio | #42, dnt qualify | ||||||||||
| Applejack Racing, 911 460 0037 | #4, in entry list | ||||||||||
| Ted Trudon Porsche - Audi, Inc | #34, 8th (6th) | ||||||||||
| International Performance Center, Inc | #43, 13th (11th) | ||||||||||
| Brumos Porsche-Audi Corp, 911 460 9054 | #59, 3rd (1st) | ||||||||||
| Peter Papke/ John Thomas/ Jim Cook | #72, in entry list | ||||||||||
| Heimrath Turbo, Inc, 911 460 9080 | #74, 4th (2nd) | ||||||||||
| Far West Racing, 911 460 9083 | #81, in entry list | ||||||||||
| Jacques Bienvenue/ Marc Dancose, 911 230 1348 -> 911 460 0025 | #88, 6th (4th) | ||||||||||
| Bob Hagestad/ Skip Barber, 911 460 9057 | #95, rear suspe nsion | ||||||||||
| Almeras Freres, 911 460 9087 | #43, in entry list | ||||||||||
| Porsche Cars Great Britain, 072 | #57, eng ine in practice | ||||||||||
| Holbert's Porsche-Audi, 911 460 9056 | #14, in entry list | ||||||||||
| Total points 86 |
2 | 22 | 15 | 5 | 3 | 24 | 6 | 9 | |||
| Statistics | |||||||||||
| Works Starts/finishes 101/65 | 10/7 | 7/6 | 21/15 | 10/3 | 13/6 | 11/8 | 7/6 | 12/8 | 8/4 | 2/2 | |
| Driver | Team entries and car number | ||||||||||
| Gelo Racing | |||||||||||
| Jürgen Neuhaus | 86, 87 | 54 | 150 | ||||||||
| Franz Pesch | 86 | 54 | 72 | 34 | |||||||
| John Fitzpatrick | 87 | 53 | 44, 45 | 148, 149 | 47 | 53, 54, 55 | 20 | ||||
| Georg Loos | 87 | 44 | 148 | 64 | 35 | 21 | |||||
| Jürgen Barth | 87 | 53, 54 | 45 | 149 | 72 | 34 | 58 | ||||
| Vic Elford | 149, 150 | 61 | |||||||||
| Tim Schenken | 35 | 57 | 20, 21 | ||||||||
| Rolf Stommelen | 57 | 20, 21 | |||||||||
| Arturo Merzario | 54 | ||||||||||
| Manfred Schurti | 54, 55 | ||||||||||
| Toine Hezemans | 53, 55 | ||||||||||
| Bonomelli Squadra Corse | |||||||||||
| Ennio Bonomelli | 88 | 64 | 143 | 6 | 41 | ||||||
| Michael Keyser | 88 | ||||||||||
| Giuseppe Schenetti | 88 | 41 | |||||||||
| Charles Geeraerts | 64 | ||||||||||
| Porsche Club Romand | |||||||||||
| Bernard Cheneviere | 89 | 45 | 48 | 66 | 37 | 45 | 59 | ||||
| Peter Zbinden | 89 | 45 | 48 | 142 | 66 | 30, 37 | 45 | ||||
| Mario Ilotte | 91 | 141 | |||||||||
| Claude Haldi | 91 | 44 | 47 | 141 | 58 | 36 | 44 | ||||
| Juan Fernandez | 91 | 36 | |||||||||
| Claude Ballot-Léna | 91 | 44 | 41 | 143 | 61 | 38 | 40 | ||||
| Niki Bosch | 47 | 141 | |||||||||
| José-Maria Fernandez | 58 | ||||||||||
| Jean-Marc Seguin | 58 | ||||||||||
| Michel Dubois | 66 | ||||||||||
| William Vollery | 67 | 46 | |||||||||
| Eric Chapuis | 67 | 46 | |||||||||
| Roger Dorchy | 67 | ||||||||||
| Edy Brandenberger | 30, 37 | 44 | |||||||||
| John De Stefano | 59 | ||||||||||
| Sepp Greger | |||||||||||
| Sepp Greger | 92 | 50 | |||||||||
| Eberhard Sindel | 92 | 50 | |||||||||
| Jean-Louis Haxhe | 46 | ||||||||||
| Helmuth Koinigg | 46 | ||||||||||
| Brescia Corse | |||||||||||
| "Tambauto" | 93 | ||||||||||
| "Gianfranco" | 93 | ||||||||||
| Alessandro Ghidini | 146 | ||||||||||
| "Pooky" | 146 | ||||||||||
| Jolly Club | |||||||||||
| Giovanni Borri | 94 | 59 | 144 | 31 | 51 | 58 | |||||
| Giorgio Schön | 94 | 59 | 144 | 31 | 51 | 58 | |||||
| Kremer Racing | |||||||||||
| Paul Keller | 95 | 41 | 42, 43 | 152 | 68 | 32, 33 | 48 | 51 | |||
| Hans Heyer | 95 | 41 | 152 | 68 | 32, 33 | 48, 52 | 51, 52 | ||||
| Willy Kauhsen | 96 | 40 | 43 | ||||||||
| Clemens Schickentanz | 96 | 40 | 42 | 153 | 64 | 34 | 58 | 53 | |||
| Willi Deutsch | 42 | 49 | 153 | 52 | |||||||
| Josef Brambring | 42 | 49 | |||||||||
| Hartwig Bertrams | 51 | 41 | 47, 49 | ||||||||
| Günter Steckkönig | 51 | 49 | |||||||||
| Erwin Kremer | 68 | 33 | |||||||||
| Reine Wisell | 32 | ||||||||||
| STP Schweden | |||||||||||
| Helmut Kelleners | 43 | 46 | |||||||||
| Anton Stocks | 43 | 46 | |||||||||
| Max Moritz | |||||||||||
| Werner Christmann | 47 | 53 | |||||||||
| Eckhard Schimpf | 47 | 53 | |||||||||
| Reinhardt Stenzel | 56 | ||||||||||
| Ove Andersson | 56 | ||||||||||
| Robert Buchet | |||||||||||
| Bob Wollek | 41 | 151 | 38 | 40 | 52 | ||||||
| Cyril Grandet | 54 | ||||||||||
| Guy Gentis | 54 | ||||||||||
| Team Västkuststugan - Porsche Kubero | |||||||||||
| Bengt Ekberg | 54, 55 | 41 | 56 | ||||||||
| Roland Larsson | 54, 55 | ||||||||||
| Kurt Simonsen | 55 | 56 | |||||||||
| Hasselbecker-Racing-Team | |||||||||||
| Horst Sasse | 57 | ||||||||||
| Jürgen Konrad | 57 | ||||||||||
| Sixtant Racing-Team | |||||||||||
| Horst Godel | 60 | ||||||||||
| Dieter Franke | 60 | ||||||||||
| Gante-Racing | |||||||||||
| John Rulon-Miller | 61 | ||||||||||
| Frank Lampe | 61 | ||||||||||
| Louis Meznarie | |||||||||||
| Hubert Striebig | 60 | 59 | |||||||||
| Hughes Kirschoffer | 60 | ||||||||||
| Jean-Louis Chateau | 60 | 59 | |||||||||
| Heinz Schiller | |||||||||||
| Jean Selz | 61 | ||||||||||
| Florian Vetsch | 61 | ||||||||||
| Ecurie Francorchamps | |||||||||||
| Richard Bond | 62 | 56 | |||||||||
| Hughes de Fierlant | 62 | ||||||||||
| Nick Faure | 56 | ||||||||||
| "Jean Beurlys" | 56 | ||||||||||
| Claude Haldi | |||||||||||
| Lucien Nageotte | 69 | ||||||||||
| Pierre Laffeach | 69 | ||||||||||
| Jean-Francois Jaunet | 69 | ||||||||||
| ASA Cachia - Bondy | |||||||||||
| Raymond Touroul | 70 | ||||||||||
| Henri Cachia | 70 | ||||||||||
| Denis Rua | 70 | 50 | |||||||||
| Jacques Borras | 50 | ||||||||||
| Toad Hall Motor Racing | |||||||||||
| Michael Keyser | 73 | 5, 6 | |||||||||
| Milt Minter | 73 | 5, 6 | |||||||||
| Paul Blancpain | 73 | ||||||||||
| Vic Elford | 6 | ||||||||||
| Ennio Bonomelli | 6 | ||||||||||
| Stephen Behr | 6 | ||||||||||
| Palladio | |||||||||||
| Girolamo Capra | 42 | ||||||||||
| Silvano Frisori | 42 | ||||||||||
| Applejack Racing | |||||||||||
| Bill Webbe | 4 | ||||||||||
| Freddy Kottulinsky | 4 | ||||||||||
| Holbert's Porsche-Audi | |||||||||||
| Al Holbert | 14 | ||||||||||
| Elliot Forbes-Robinson | 14 | ||||||||||
| Ted Trudon Porsche - Audi, Inc | |||||||||||
| Sam Posey | 34 | ||||||||||
| David Hobbs | 34 | ||||||||||
| International Performance Center, Inc | |||||||||||
| John O'Steen | 43 | ||||||||||
| John Graves | 43 | ||||||||||
| Dave Helmick | 43 | ||||||||||
| Brumos Porsche-Audi Corp | |||||||||||
| Peter Gregg | 59 | ||||||||||
| Hurley Haywood | 59 | ||||||||||
| Heimrath Turbo, Inc | |||||||||||
| Ludwig Heimrath | 74 | ||||||||||
| Jim Cook | 74 | ||||||||||
| Far West Racing | |||||||||||
| Elliot Forbes-Robinson | 81 | ||||||||||
| Grey Egerton | 81 | ||||||||||
| Almeras Freres | |||||||||||
| Jean-Marie Alméras | 43 | ||||||||||
| Jacques Alméras | 43 | ||||||||||
| Porsche Cars Great Britain | |||||||||||
| Win Percy | 57 | ||||||||||
| Nick Faure | 57 | ||||||||||
*Max Moritz entry
* *Escuderia Montjuich entry
Source
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Drawings
Electric diagrams
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page revision: 151, last edited: 03 Feb 2019 06:41