Porsche 911 T group 3 (1968)
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Chassis numbers here and here
911 T/R Chassis numbers

Also called Porsche 911 SWB "Short Wheel Base"

Specifications

Coupe, 5515 units built
Targa, 803 units built

Click here and here and here and here and here
Click here and here for T
Click here for T/R

Click here for info
Homologation number, 577 and 607
Homologation start, 1/1/1968 and 1/1/1969

Type Porsche Type 901/30, boxer 6 cyl (180o), 4 stroke, petrol engine located longitudinally behind rear axle
Capacity 1991cc
Bore x Stroke (mm) 80.0 x 66.0
Compression ratio 9.9:1
Output power - torgue 170 - 180 HP / 134 kw @ 6800 rpm, up to 200 HP 195 nm / 144.0 ft lbs @ 5200 rpm
Main bearings forged steel crankshaft with 8 plain main bearings 57mm diameter, big end journal diameter 57mm titanium connecting rods, 130mm distance center to center, 61mm big end bearing diameter
Materials block: silumin alloy, 124.5mm bore spacing cylinderhead: aluminium alloy
Cams/valves 2 x 1 overhead camshafts (SOHC), chain driven 2 valves/cyl. - 12 valves total. 42mm inlet valve diameter, 38mm exhaust valve diameter.
Aspiration natural, 2 x Weber 40 IDA 3C carburetors
Ignition electronic single spark, firing order 1-6-2-4-3-5, Bosch coils and Bendix fuel pumps
Cooling system aircooled
Lubrication system dry sump with 1 oil cooler 11 lt
Transmission
Type rear wheel drive Porsche Type 901, 901/52 (911L), 5 speed gearbox , click here and here
Gearbox ratios 1st: 3.09/1
2nd: 1.89/1
3rd: 1.32/1
4th: 1.04/1
5th: 0.79/1
1st: 3.091/1 (34/11)
2nd: 1.778/1 (32/18)
3rd: 1.217/1 (28/23)
4th: 0.926/1 (25/27)
5th: 0.759/1 (22/29)
R: 3.127/1 (16/11 x 43/20)
1st: 2.643/1 (37/14)
2nd: 1.600/1 (32/20)
3rd: 1.318/1 (29/22)
4th: 1.080/1 (27/25)
5th: 0.926/1 (25/27)
R: 3.127/1 (16/11 x 43/20)
Diffrential ratio 4.428/1 (31/7) spiral bevel gears limited slip rear differential
Clutch dry single disk 215mm diameter
Chassis-body
Type steel monocoque 911 SWB (short wheel base) Type A/B chassis. 2 door coupe steel bodyshell with steel bumpers
Front suspension mc pherson strut with lower L wishbone, longitudinal torsion bars, telescopic gas shock absorber and anti-roll bar 15mm diameter
Rear suspension trailing arm with torsion bars, telescopic gas shock absorber and anti-roll bar 15mm diameter
Steering system rack and pinion
Brakes front ventilated disks 282mm diameter with 2 steel piston calipers. Rear ventilated disks 285mm diameter with 2 steel piston calipers. Ventilated calipers front and rear dual circuit with servo
Dimensions
length: 4.163 m (163.9") width: 1.610 m (63.4") height: 1.320 m (52.0")
wheelbase: 2.211 (87") front track: 1.353 m (53.3") rear track: 1.321 m (52.0")
Rims - tires 4.5 - 6 x 15" 165-HR15", 185/70VR15
Weight 860-920kg, f/r distribution 41.5% / 58.5%
Weight/power
Fuel tank 62-100 lt
Drag coefficient 0.38

Results in WSCC

Season
Group 3 classification is noted in brackets
901/30 engine with 180-200 HP
Car entry Car number/ result
Dayt Sebring Brands Hatch Monza Targa Florio Nurb Spa Watkins Glen Zeltweg Le Man
Team 24h 12h 6h 1000km 1000km 1000km 6h 500km 24h
Porsche System Engineering, 118 20 765 #64, 10th (2nd) #112, 26th (3rd)
Brumos Porsche Corp #59, 8th (1st)
Davidson Enterprises, Group TA #72, acci dent
Vereinigung Süddeutscher Automobilsportler #63, shift linkage #110, 18th (1st)
Ennio Bonomelli #65, suspe nsion #62, in entry list
IGFA #68, 8th (1st) #109, 37th (6th) #63, 11th (1st)
Wicky Racing Team #72, 13th (4th) #64, in entry list #60, acci dent
Wicky Racing Team #66, in entry list
Ecurie Les Corsaires #82, 8th (1st)
Ferfried von Hohenzollern/ Reinhardt Stenzel #73, oil pipe
Claude Laurent, 118 20 780 (T/R) #78, 20th (6th) #64, 13th (2nd)
Werner Zanders/ Willy Zanders #116, acci dent in practice
Sten Axelsson Roadracing #117, 27th (4th) #57, in entry list
Jean-Pierre Gaban/ Roger Vanderschrieck #43, 12th (1st)
Auguste Veuillet, 118 20 807 (T/R) #44, eng ine
Total points
10
4 3 3
Statistics
Starts/finishes 20/13 1/0 6/3 2/2 5/4 1/1 1/1 4/2
Driver Team entries and car number
Porsche System Engineering
Jean-Claude Killy 64 112
Jean Guichet 64 112
Brumos Porsche Corp
Peter Gregg 59
Davidson Enterprises
Paul Richards 72
Tony Adamowicz 72
Marvin Davidson 72
Vereinigung Süddeutscher Automobilsportler
Sepp Greger 63 110
Malte Huth 63 110
Ennio Bonomelli
Ennio Bonomelli 65 62
Antonio Zadra 65
Gianpiero Moretti 62
IGFA
Dieter Glemser 68 109 63
Helmut Kelleners 68 63
Peter Nöcker 109
Wicky Racing Team
Willy Meier 72 66 60
Claude Haldi 72
Jean-Pierre Hanrioud 64
Jean Sage 64
André Wicky 66
Jean de Mortemart 60
Ecurie Les Corsaires
Claude Haldi 82
Pierre Greub 82
Edgar Berney 82
Claude Laurent
Claude Laurent 78 64
Jacques Marché 78
Jean-Claude Ogier 64
Sten Axelsson Roadracing
Björn Rothstein 117
Peter Gregg 117
Björn Waldegaard 57
Sten Axelsson 57
Auguste Veuillet
Claude Ballot-Léna 44
Guy Chasseuil 44

Results in WRC

Races

Season
Entry Rally event
Driver
Codriver
Team M.C SVE
Entry list
S.R KEN A GRE RAC
entry list
Detlef Mühleck (gr4)
Rudi Eberhardt
29th
Statistics
Others starts/finishes 1/1 1/1

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911T/R
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911T/R at Le Mans '68
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Weber 40 IDS carburetors

Drawings

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Engine

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Weber 40 IDS 3C
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Weber 40 IDA 3C

Chassis

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Electrics

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