Porsche 904 group P (1964)
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Chassis numbers here and here

Specifications

5 units built
Click here
Click here for 904/6

Type 771/0, Boxer 8 (180o) cyl, 4 stroke, petrol engine
1982cc, 76.0 x 54.6 mm
10.5:1
225 HP (168 kW) @ 8000 rpm
210 Nm @ 7100 rpm
cast-aluminium block, aluminium alloy head
2 valves / cylinder, DOHC driven with bevel gears
aspiration: natural with 2 x Weber 42 IDA 3C carburetors
aircooled

Type 901, Boxer 6 (180o) cyl, 4 stroke, petrol engine, located middle longitudinally
1991cc, 80.0 x 66.0 mm
10.3:1
200 bhp / 149 KW @ 8000 rpm
190 Nm / 140 ft lbs @ 6000 rpm
magnesium alloy block, aluminium head with hemi combustion chamber
forged steel crankshaft with 8 plain main bearings 57mm diameter, 57mm big end journal diameter
titanium connecting rods, 130mm distance center to center, 61mm big end bearing diameter
2 valves / cylinder, Hollow, sodium-filled exhaust valve, 1 overhead camshaft (SOHC), chain driven
aspiration: natural, 2 x Weber 46 IDA 3C carburetors (parts list)
twin plugs/cylinder
aircooled

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
ZF Rack & Pinion steering
front disk brakes 275mm diameter, rear disk brakes 285mm diameter
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")
rims 5J x 15" or 6 x 15"
tires, 165 HR 15 / 185/70-HR-15 or 5.5-15 / 6.0-15 front/rear
weight 650 kg
fuel tank, 61 lt
drag coefficient 0.34


Results in WSCC

Season races for Prototypes
Car entry, chassis number Car number/ result
Sebring Targa Florio Consuma Nurb Rossfeld Le Man Reims Freiburg Tourist Trophy Sierra Montagna Brigde Hampton Paris
Team 12h Hill climb 1000km Hill climb 24h 12h Hill climb Hill climb 500km 1000km
Porsche System Engineering, 904/8 008 (904/8) #186, 6th #127, acci dent in practice #30, clutch
Porsche System Engineering, 904/8 009 (904/8) #126, 5th #29, clutch #33, gear box #30, 3rd
Porsche System Engineering, 906 001 (904/6) #31, acci dent
Scuderia Filipinetti (904/8) #2, 2nd #28, in entry list #97, 3rd #63, 2nd
Total points
45
5 6 9 8 9 8
Statistics
Works Starts/finishes 11/6 1/1 2/1 1/1 2/0 1/0 1/1 1/1 2/1
Drivers Team entries and car number
Porsche System Engineering
Edgar Barth 186 127 29 33 30
Umberto Maglioli 186
Jo Bonnier 126
Richie Ginther 126
Colin Davis 127 30 33 30
Herbert Linge 29
Gerhard Mitter 30
Scuderia Filipinetti
Herbert Müller 2 97 63

1964-05_Training_Porsche_904_8-Zyl._wahrscheinl._E._Barth.jpg Source
904/8
1965_porsche_904_6_14_m.jpg Source
904/6
PM0050.jpg Source
904/8 Bergspyder
porsche_904_6_gts_25.jpg Source
duel_904_1.JPG Source
3e2f323c-cd34-4bdc-95e5-e0a444dd06f5-big-teaser.jpg Source

Drawings

porsche-904-carrera-gts_1964.jpg Source
40-46IDA3pic.jpg Source
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