Alfa Romeo Tipo 33 TT12 group 5 (1973)

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Development chain 1967: Alfa Romeo Tipo 33 1968: Alfa Romeo Tipo 33/2 1969: Alfa Romeo Tipo 33/3 1970: Alfa Romeo Tipo 33/3 71 1971: Alfa Romeo Tipo 33 TT3 1973: Alfa Romeo Tipo 33 TT12 1976: Alfa Romeo Tipo 33 SC12

TT derives from Tellaio Tubulare (tubular chassis)
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Specifications

11 units built
Click here and here and here
Alfa Romeo flat V12 (180^o) cyl, 4 stroke, petrol engine
2.995cc, 77.0 x 53.6 mm
12.0:1
500 bhp / 373 KW @ 11500 rpm
336 nm / 247.8 ft lbs @ 9000 rpm
light alloy block and head
forged steel crankshaft with 7 main bearings
dual over head camshafts per bank (DOHC), gear driven, 4 valves / cylinder - 48 valves total
aspiration: natural with Lucas Mark II mechanical fuel injection
water cooled
Dry sump
5 speed Manual gearbox
1st: 2.36:1
2nd: 1.61:1
3rd: 1.24:1
4th: 1.10:1
5th: 0.86:1
Dry, dual plate clutch
Fibre Glass Body Over Aluminum Sheet & Tubular spaceframe Chassis
Front suspension double wishbones, coil springs over telescopic shock absorbers, anti-roll bar
Rear suspension single top links, twin lower links, twin trailing arms, coil springs over telescopic shock absorbers, anti-roll bar
rack-and-pinion steering
ventilated discs, all-round, rear in-board
length 3700 mm / 145.7 in
width 1900 mm / 74.8 in
height 960 mm / 37.8 in
wheelbase 2340 mm (92.1 in)
front track 1430 mm / 56.3 in
rear track 1470 mm / 57.9 in
670kg

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Results in WSCC

1973Season

Car entry, chassis number	Car number/ result
	Dayt	Vallel	Dijon	Monza	Spa	Targa Florio	Nurb	Le Man	Zeltweg	Watkins Glen
Team	24h	6h	1000km	1000km	1000km		1000km	24h	1000km	6h
Autodelta					#7, acci dent in practice	#6, acci dent	#8, oil in clutch
Autodelta						#7, acci dent in practice			#3, in entry list
Autodelta, 11512-001							#9, engine		#4, OTL
Statistics
Works Starts/finishes 5/0					1/0	1/0	2/0		1/0
Driver	Team entries and car number
Autodelta
Rolf Stommelen					7	6	8		4
Andrea de Adamich					7	6	8		3
Clay Regazzoni						7	9		4
Carlo Facetti						7	9		3

1974Season

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
Autodelta, 11512-008	#3, 1st		#5, 9th	#3, acci dent	#4, in entry list	#1, 5th	#60, disqu alified
Autodelta, 11512-007	#4, 2nd		#3, 2nd	#4, 2nd	#3, in entry list	#2, fire	#70, acci dent in practice
Autodelta, 11512-009	#6, 3rd		#4, 3rd	#5, 3rd	#6, in entry list	#3, 2nd
Autodelta	#5, not quali fied	in entry list			#7, in entry list
Total points 78	27		19	17		15
Statistics
Works Starts/finishes 15/10	4/3		3/3	3/2		3/2	2/0
Driver	Team entries and car number
Autodelta
Arturo Merzario	3		5	3	4, 7	1	60
Mario Andretti	3						60, 70
Rolf Stommelen	4, 5		3	4	3, 6	2	70
Teodoro Zeccoli	5				6
Jacky Ickx	4			3		1
Carlo Facetti	6		4	5	4, 6	3
Andrea de Adamich	6		4	5	3, 7	3
Carlos Reutemann			3	4		2
Brian Redman			5
Vittorio Brambilla						1

1975Season

Car entry, chassis number	Car number/ result
	Dayt	Mugello	Dijon	Monza	Spa	Pergusa	Nurb	Zeltweg	Watkins Glen
Team	24h	1000km	800km	1000km	1000km	1000km	1000km	1000km	6h
Willi Kauhsen Racing Team, 11512-008		#1, 2nd	#2, 1st	#2, 1st	#1, 2nd	#1, 1st	#1, 1st	#1, 2nd	#3, 2nd
Willi Kauhsen Racing Team, 11512-010		#2, 4th	#1, 4th	#1, 18th	#2, 1st	#2, 2nd	#2, acci dent	#2, 1st	#4, 1st
Willi Kauhsen Racing Team, 11512-009		#T, spare car	#60T, spare car	#T, spare car	#2T, spare car	#T, spare car	#3, 6th	#1T, spare car	#6T, spare car
Willi Kauhsen Racing Team						#1T, spare car	#8, in entry list
Total points 134		16	17	10	19	19	15	19	19
Statistics
Works Starts/finishes 17/16		2/2	2/2	2/2	2/2	2/2	3/2	2/2	2/2
Driver	Team entries and car number
Willi Kauhsen Racing Team
Arturo Merzario		1	2, 60T	2	1	1, 1T	1	1, 1T	3, 6T
Jacky Ickx		1			1
Henri Pescarolo		2, T	1, 60T	1, T	2, 2T	2, T	2	2	4, 6T
Derek Bell		2, T	1, 60T	1	2, 2T	2, T	2	2	4, 6T
Jacques Laffite			2, 60T	2			1
Jochen Mass						1, T	3
Jody Scheckter							3, 8
Vittorio Brambilla								1, 1T
Mario Andretti									3, 6T

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Drawings

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