Porsche 904 GTS group GT (1964)
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Chassis numbers here and here

Specifications

106 units built
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Homologation number: 159
Homologation start: 12/4/1964
Type 587/3, boxer 4 cyl (180o), 4 stroke, petrol engine, located middle longitudinally
1966cc, 92.0 x 74.0 mm
9.8:1
134.2 kw / 180 bhp @ 7200 rpm
195.92 nm / 144.5 ft lbs @ 5000 rpm
aluminium block and head
2 valves / cylinder, DOHC
aspiration, natural with 2 x Weber 46 IDA 3C or Weber 45 DCOE
aircooled
dry sump
type 822, 5 speed manual gearbox
1st: 2.643/1
2nd: 1.550/1
3rd: 1.217/1
4th: 1.040/1
5th: 0.889/1
final drive: 4.428/1, 4.605/1, 4.260/1, 3.636/1, 3.362/1
steel ladder chassis with rectangular tubes. 2 doors coupe fibreglass bodyshell
Rack & Pinion
front disk brakes 275mm diameter, rear disk brakes 285mm diameter, or Dunlop-Ate 9.5" discs front and rear
length 4090 mm (161.02")
width 1540 mm (60.62")
height 1065 mm (41.93")
wheelbase 2300 mm (90.6")
front track 1314 mm (51.73")
rear track 1312 mm (51.65")
wheels, 5J x 15" or 6 x 15"
tires, 165 HR 15 / 185/70-HR-15 or 5.5-15 / 6.0-15 front/rear, Dunlop SP 5.90 x 15
weight 640 kg, f/r distribution 48-52%
fuel tank, 61 lt
drag coefficient 0.34


Results in WSCC

Season races for GT 2.0-
Running as Prototypes in Sebring
Car entry, chassis number Car number/ result
Daytona Sebring Targa Florio Spa Consuma Nurb Rossfeld Le Man Reims Freiburg CdE Sierra Montagna Inter Europa Tour de France Brigde Hampton Paris
Team 2000km 12h 500km Hill climb 1000km Hill climb 24h 12h Hill climb Hill climb 500km 1000km
Porsche System Engineering, 904-005 #86, 1st #41, 5th #127T, acci dent
Porsche System Engineering, 904-006 #84, 2nd #46, 12th #31, 10th #159, 4th
Porsche System Engineering #42, 6th #161, in entry list
Porsche System Engineering, 904-022 #41, clutch
Precision Motor Cars, 904-011 #36, dnf
Precision Motor Cars #83, in entry list
B. S. Cunningham, 904-018 #37, 9th (1st)
Count Godin de Beaufort, 904-019 #38, throttle linkage #60, in entry list
Auguste Veuillet, 904-020 #50, 17th #36, 10th #22, eng ine
Auguste Veuillet, 904-021 #34, 7th #32, dnf
Auguste Veuillet, 904-047 #37, 13th
Racing Team Holland, 904-023 #48, dns #62, in entry list #40, 15th #23, 1st #34, 6th
Racing Team Holland, 904-055 #47, 8th #45, 3rd #33, 8th #39, 7th #24, 2nd #33, 8th
S. M. A. R. T., 904-025 #50, 9th in entry list
Gerhard Koch, 904-028 #45, 7th
Michel Weber, 904-029 #55, 6th #50, in entry list
Werner Brockhaus, 904-030 #61, 11th #55, 10th
Peter Ruby/ Sepp Greger, 904-031 #64, acci dent
Rudolf Wilhelm Moser/ Siegfried Günther, 904-032 #47, fatal acci dent in practice in entry list
Heini Walter, 904-033 #40, 18th #66, 11th #56, 8th
Heini Walter, 904-105 #48, 6th #147, 12th
Hansueli Eugster, 904-035 #21, 5th
Udo Schütz, 904-036 #62, 12th #56, 14th
Gerhard Osterfeld, 904-037 #46, dnf
Ecurie Francorchamps, 904-040 #43, dnf #49, acci dent
Ecurie Francorchamps, 904-084 #44, dnf #44, acci dent
"Franc"/ Jean Kerguen, 904-041 #32, 12th #43, 16th #162, in entry list #35, 9th
RBM Motors, Inc, 904-043 #39, dnf #32, dnf
Richard Stoop, 904-045 #63, 15th #52, 23rd
Scuderia Filipinetti, 904-046 #72, eng ine #67, 30th
Scuderia Filipinetti, 904-079 #42, 14th #55, 6th #58, 16th #35, 11th #38, 12th #51, 8th #146, 7th
Scuderia Filipinetti, 904-101 #155, suspe nsion
Jean-Claude Mosnier/ André de Cortanze, 904-049 #36, acci dent in practice
Hasse Radefalk/ George Duneborn, 904-053 #88, acci dent in practice
Günther Selbach/ Herbert Schultze, 904-054 #43, 17th
Ed Weschler, 904-066 #30, 1st
Heinz Schiller/ Jo Siffert, 904-069 #65, 8th
Heinz Schiller #25, 3rd
Antonin Chalut, 904-069 #149, 34th
Jacques Rey/ Jean-Pierre Hanrioud, 904-075 #90, 14th (4th) #163, eng ine
Andrea Vianini, 904-078 #94, acci dent #63, 10th #44, 5th
Scuderia St. Ambroeus, 904-080 #78, chassis #62, in entry list #26, dns
Porsche France, 904-100 #158, 5th
Mille Miglia, 904-104 #49, dns #54, in entry list #157, 6th
Claude Storez, 904-108 #160, 3rd
Hap Sharp/ Ronnie Hissom #40, gear box
Paolo Colombo #323, 3rd #59, 9th #53, in entry list #20, 4th
Biennoise #64, 14th #54, dnf #148, 16th
Steve Berg #37, 2nd
Buehl Imported Cars #36, in entry list
Total points
205
2 19 13 8 19 10 8 16 9 4 40 26 19 10
Statistics
Works Starts/finishes 91/64 5/1 7/3 11/6 1/1 14/9 8/8 6/5 9/8 6/5 4/4 7/5 6/4 3/2 4/3
Drivers Team entries and car number
Porsche System Engineering
Antonio Pucci 86
Colin Davis 86
Gianni Balzarini 84
Herbert Linge 84 46
Edgar Barth 41 127T 161
Gerhard Mitter 46 42
Colin Davis 127T
Gerhard Koch 31 42
Heinz Schiller 65 31 41 25
Jo Siffert 41
Günther Klass 159
Rolf Wütherich 159
B. S. Cunningham
Lake Underwood 37
Briggs Cunningham 37
Carel Godin de Beaufort
Godin de Beaufort 38
Gerhard Mitter 60
Precision Motor Cars
Richie Ginther 36
Ronnie Bucknum 36
Andrea Vianini
Andrea Vianini 94 63
Bruno Deserti 94
Nasif Estéfano 63
Heini Walter
Heini Walter 40 66 56
Rudolf Jenzer 66
Scuderia Filipinetti
Herbert Müller 72 42 55 35 38 155
Bernhard Rayers 72 67
André Knörr 55 58 38 51 146
Antonio Pucci 67
Claude Sage 35
Michel Weber 155
Scuderia St. Ambroeus
Gianni Bulgari 78 62 26
Maurizio Grana 78 62
Ecurie Francorchamps
Emile-Claude Clemens 44 44
Marcel van Bierbeek 44
"Eldé" 43 49
André Pilette 49
Racing Team Holland
Ben Pon 47 45 33 39 24 33
Henk van Zalinge 48 45 33 40
Carel Godin de Beaufort 62
Gerhard Mitter 62
Guy Ligier 50 62
Rob Slotemaker 39 23 34
David van Lennep 40 34
Gerhard Koch 33
S. M. A. R. T. (Stirling Moss Auto Racing Team)
David Hobbs 50
Lloyd Casner 50 +
John Whitmore +
Hugh Dibley +
Mille Miglia
Edmond Meert 49 54 157
Wim de Jonghe 54 157
Richard Stoop
Dickie Stoop 63 52
Biennoise
Hans-Peter Bigler 64 54 148
Auguste Veuillet
Robert Buchet 34 36 32
Guy Ligier 34 36 22
Annie Soisbault 37
Claude Dubois 37
Günther Klass 32
Claude Storez
Robert Buchet 160
Herbert Linge 160
Porsche France
Christian Poirot 158
Claude Marbaque 158
Ed Weschler
Joe Buzzetta 30
Bill Wuesthoff 30
Steve Berg
Christian Poirot 37
RBM Motors, Inc
John E. Ryan 39
Bill Bencker 39
Jack Ryan 32
Buehl Imported Cars
Uwe Buehl 36

porsche-904-carrera-gts-1964.jpg Source
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Drawings

porsche-904-carrera-gts_1964.jpg Source
porsche-904-04.jpg Source
porsche_904_carrera_gts_1965.jpg Source

Chassis

Gt904-2.jpg Source
Plan3_p3.jpg Source

Carburetor

40-46IDA3pic.jpg Source

Suspension

904%20bits.jpg Source
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