Porsche 964 Turbo S LM group GT1 (1993)

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Source

Also called Porsche 964 Biturbo

Specifications

76 units built
Click here

Parts catalogue

1993
Porsche 930/20 based, boxer 6 (180^o) cyl, 4 stroke, petrol engine
3164cc, 95 x 74.4 mm
475 bhp / 349 kW
aluminium alloy block and heads, aluminium alloy cylinders with internal 0.1mm thick nicasil coatings
forged steel crankshaft with 8 plain main bearings 60mm diameter, 55mm big end journal diameter
titanium connecting rods
small end bearigns diameter 23.02+0.013mm, width 25-0.5mm
big end bearings diameter 58+0.019mm, width 21.7+0.1mm
connecting rod length between centers 127-0.05mm
play between the bush & pin 0.020…0.039 max 0.055mm
Single Overhead camshaft (SOHC) one per bank, double chain drive, 2 valves/cyl - 12 valves total
aspiration, 2 x Turbochargers with CIS Bosch K-jetronic multipoint electronic fuel injection, and 2 x 34mm inlet restrictors
air cooled
dry sump

1994+
Porsche M64/50, boxer 6 (180^o) cyl, 4 stroke, petrol engine. Click here
3600cc, 100 x 76.4 mm
7.5:1
260 kW / 360 hp @ 5500 rpm
aluminium alloy block and heads, aluminium alloy cylinders with internal 0.1mm thick nicasil coatings
forged steel crankshaft with 8 plain main bearings 60mm diameter, 55mm big end journal diameter
titanium connecting rods
small end bearigns diameter 23.02+0.013mm, width 25-0.5mm
big end bearings diameter 58+0.019mm, width 21.7+0.1mm
play between the bush & pin 0.020…0.039 max 0.055mm
Single Overhead camshaft (SOHC) one per bank, double chain drive, 2 valves/cyl - 12 valves total
aspiration, 2 x Turbochargers with CIS Bosch K-jetronic multipoint electronic fuel injection
Bosch EZ69 electronic ignition control unit
air cooled
dry sump

5 speed manual gearbox
steel body
rack and pinion steering
ventilated discs all around with Bosch racing specs ABS
rims, front 8J x 18", rear 12J x 18"
1000kg
fuel tank, 120 lt

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Results in BPR International GT Endurance Series and in FIA GT Championship

1994Season

Car entry	Car number, result
	Paul Ricard	Jarama	Dijon	Paris	Valle lunga	Spa	Suzuka	Zhuhai
Team	4h	4h	4h	1000km	4h	4h	1000km	3h
Konrad Motorsport (Bi Turbo)	#41, in entry list	#42, 4th	#42, dnf	#42, trans mission	#41, 7th	#41, 19th	#41, dnf	#41, 2nd
Freisinger Motorsport	#44, 2nd
Freisinger Motorsport (Bi Turbo)		#45, acci dent	#45, 10th	#45, dns		#45, in entry list
Freisinger Motorsport					#50, dnf	#50, 20th	#50, 5th	#50, 9th
Scuderia Chico d'Oro, WP0ZZZ96ZPS496071 (Bi Turbo group GT3)			#51, 5th	#51, dns
Guy Broissiat, (Bi Turbo GT3)			#52, in entry list	#52, dnf
Larbre Compιtition	#86, 1st	#86, 1st					#86, 1st	#86, 1st
Total points 84	19	17	7		4		16	21
Statistics
Works Starts/finishes 22/14	2/2	3/2	3/2	4/0	2/1	2/2	3/2	3/3

Team and drivers entries

+ Show Konrad Motorsport Team

	Paul Ricard	Jarama	Dijon	Paris	Valle lunga	Spa	Suzuka	Zhuhai
Franz Konrad		42	42	42	41	41	41	41
Netzeband		42
Cor Euser			42				41
Steinbrecher				42
Schmickler					41
Antonio Hermann						41	41
Tiff Needell								41

+ Show Freisinger Motorsport Team

	Paul Ricard	Jarama	Dijon	Paris	Valle lunga	Spa	Suzuka	Zhuhai
Edgar Doren	44	45
Michael Irmgratz	44	45	45	45	50	45, 50
Luigino Pagotto		45
Wolfgang Kaufmann			45	45	50	45	50	50
Jean-Louis Ricci				45		45, 50
Shunji Kasuya								50
Michel Ligonnet							50

+ Show Scuderia Chico d'Oro/Guido Haberthur Team

	Paul Ricard	Jarama	Dijon	Paris	Valle lunga	Spa	Suzuka	Zhuhai
Haberthur			51	51
Balandras			51	51
Dedours				51

+ Show Guy Broissiat Team

	Paul Ricard	Jarama	Dijon	Paris	Valle lunga	Spa	Suzuka	Zhuhai
Guy Broissiat			52	52
Philippe Meunier			52	52
Ludovic Broissiat				52

+ Show Larbre Compιtition Team

	Paul Ricard	Jarama	Dijon	Paris	Valle lunga	Spa	Suzuka	Zhuhai
Bob Wollek	86						86	86
Jesus Pareja	86	86					86
Jean-Pierre Jarier	86	86					86	86
Dominique Dupuy		86
Jaques Laffite								86

1995Season

Car entry	Car number, result
	Jerez	Paul Ricard	Monza	Jarama	Nurb	Donin gton	Paris	Ander stop	Suzuka	Silver stone	Nogaro	Zhuhai
Team	4h	4h	4h	4h	4h	4h	1000km	4h	1000km	4h	4h	3h
Konrad Motorsport	#21, 10th	#21, 19th	#21, eng ine
Konrad Motorsport (Bi Turbo)					#42, acci dent		#42, in entry list	#42, 9th	#42, dnf			#42, 10th
Konrad Motorsport, (Bi Turbo group GT3)										#20, 15th	#20, gear box	#20, acci dent
HO Motorsport, 965006 (Bi Turbo)		#25, 6th	#25, 7th	#25, 6th	#25, 10th
Obermaier Racing	#30, 4th	#30, gear box	#30, eng ine	#30, gear box			#30, fire			#30, 9th
Freisinger Motorsport (Bi Turbo)		#49, elec trics	#49, OTL	#49, in entry list						#49, in entry list
Freisinger Motorsport	#50, dnf	#50, 4th	#50, 5th	#50, 16th	#50, 8th	#50, 5th		#50, gear box
Freisinger Motorsport				#51, 11th	#51, in entry list	#51, in entry list	#51, dnt qualify	#51, in entry list	#51, 20th			#51, 6th
Total points 55	8	12	10	5	4	6		2		2		6
Statistics
Works Starts/finishes 33/19	3/2	5/3	5/2	4/3	3/2	1/1	2/0	2/1	2/1	2/2	1/0	3/2

Team and drivers entries

+ Show Konrad Motorsport Team

	Jerez	Paul Ricard	Monza	Jarama	Nurb	Donin gton	Paris	Ander stop	Suzuka	Silver stone	Nogaro	Zhuhai
Franz Konrad	21	21	21									20
Ferdinand de Lesseps	21
Ploeg		21
Marco Spinelli			21
Giorgio Rebai			21
Bernd Netzeband					42
Peter Schem					42
Koit Veertee								42
Örnulf Wirdheim								42				20
Dinkloh									42
Siokola									42
André Ahrlé										20
Bob Wollek										20
Neugarten											20
Ricci											20

+ Show HO Motorsport Team

Jerez

Paul Ricard

Monza

Jarama

Nurb

Donin gton

Paris

Ander stop

Suzuka

Silver stone

Nogaro

Zhuhai

Sandro Angelastri

25

25

25

Harald Grohs

25

Jürgen von Gartzen

25

25

25

Jürgen Lässig

25

+ Show Obermaier Racing Team

	Jerez	Paul Ricard	Monza	Jarama	Nurb	Donin gton	Paris	Ander stop	Suzuka	Silver stone	Nogaro	Zhuhai
Otto Altenbach	30			30			30
Friedrich Leinemann	30	30	30	30			30
Örnulf Wirdheim		30								30
Charles Margueron			30
Koit Veertee										30

+ Show Freisinger Motorsport Team

	Jerez	Paul Ricard	Monza	Jarama	Nurb	Donin gton	Paris	Ander stop	Suzuka	Silver stone	Nogaro	Zhuhai
Wolfgang Kaufmann	50	50	50	50	50	50		50		49
Michel Ligonnet	50	50				50
Philippe Albera		50		51		50
Jean-Pierre Castel		49
Michel Krine		49		51			51
Bruno Giacomelli			49	49, 50	50
Henri Pescarolo			49
Rupert Keegan			50
Pietro Ferrero			50
Fulvio Ballabio				49
Jesús Diez de Villarroel				51
Daniel Sebag							51
Peter Oberndorfer								50
Michel Quiniou									51
Richard Flammang									51
Masahiro Kimoto									51
Clérico												51
Hane												51

Results in Endurance races

1993Classification in group GTS is noted in brackets, 3.2 lt engine

Car entry, chassis number	Car number, result
	Daytona	Sebring	Le Mans
Date	31/1	20/3	20/6
Duration	24h	12h	24h
Team\ Championship	IMSA	IMSA
Brumos Porsche		#59, 7th (3rd)	#46, acci dent
Total points 4		4
Statistics
Works Starts/finishes 2/1		1/1	1/0

Team and drivers entries

+ Show Brumos Porsche Team

Drivers	Daytona	Sebring	Le Mans
Hans-Joachim Stuck		59	46
Walter Röhrl		59	46
Hurley Haywood		59	46

1994Classification in group GTS is noted in brackets

Car entry, chassis number	Car number, result
	Daytona	Sebring	Le Mans
Date	6/2	19/3	19/6
Duration	24h	12h	24h
Team\ Championship	IMSA	IMSA
Freisinger Motorsport	#49, in entry list
Brumos Porsche (GT America Twin Turbo)	#59, fan belt	#59, 11th (7th)
Larbre Competition	#86, 2nd		#33, in entry list
Elf Haberthur Racing (Bi Turbo), WP0ZZZ96ZPS496071			#56, turbo
Konrad Motorsport (Bi Turbo)	#99, 12th	#99, 7th	#33, eng ine
Total points 13	9	4
Statistics
Works Starts/finishes 7/4	3/2	2/2	3/0

Team and drivers entries

+ Show Freisinger Motorsport Team

Drivers	Daytona	Sebring	Le Mans
Wolfgang Kaufmann	49
Michel Ligonnet	49
Wolfgang Krankenberg	49

+ Show Brumos Porsche Team

Drivers	Daytona	Sebring	Le Mans
Walter Röhrl	59	59
Hurley Haywood	59	59
Danny Sullivan	59
Hans-Joachim Stuck	59	59

+ Show Larbre Competition Team

Drivers	Daytona	Sebring	Le Mans
Bob Wollek	86
Dominique Dupuy	86		33
Jésus Pareja	86		33
Jürgen Barth	86
Joël Gouhier			33
Jack Leconte			33
Jean-Pierre Jarier			33

+ Show Elf Haberthur Racing Team

Drivers	Daytona	Sebring	Le Mans
Olivier Haberthur			56
Patrice Goueslard			56
Patrick Vuillaume			56

+ Show Konrad Motorsport Team

Drivers	Daytona	Sebring	Le Mans
Nick Ham	99
Mikael Gustavsson	99
Kalman Bodis	99
Maurizio Sandro Sala	99
Bernd Netzeband	99
Franz Konrad	99	99	33
Örnulf Wirdheim		99
Ferdinand de Lesseps		99
Charles Mendez		99
Antônio Hermann			33
Bernd Netzeband			33

1995Classification in group GTS is noted in brackets

Car entry, chassis number	Car number, result
	Daytona	Sebring	Le Mans
Date	5/2	18/3	18/6
Duration	24h	12h	24h
Team\ Championship	IMSA	IMSA
Obermaier Racing, 965006			#53, in entry list
Konrad Motorsport			in entry list
Statistics
Works Starts/finishes 1/0

Teams and drivers entries

+ Show Obermaier Racing Team

Drivers	Daytona	Sebring	Le Mans
Philippe Auvray			53
Hervé Regout			53
Sandro Angelastri			53
Uwe Alzen			53
Jürgen von Gartzen			53

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Source