Alfa Romeo Giulia TZ

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Alfa Romeo Giulia TZ
1963 Alfa Romeo Giulia TZ in ivory (Lime Rock).jpg
1963 Alfa Romeo Giulia TZ
Overview
ManufacturerAlfa Romeo
Also calledAlfa Romeo TZ
Production1963–1967
AssemblyItaly: Udine (Delta of Udine) (1963)
Settimo Milanese (Autodelta) (1964-1967)
DesignerErcole Spada[1] at Zagato (TZ1 and TZ2)
Body and chassis
ClassSports car
Racing car
Body style2-door coupé
LayoutFront-engine, rear-wheel-drive
RelatedAlfa Romeo Canguro
Powertrain
Engine1.6 L DOHC I4
Transmission5-speed manual
Dimensions
Wheelbase2,200 mm (86.6 in)
Length3,950 mm (155.5 in) TZ
3,680 mm (144.9 in) TZ2
Width1,509 mm (59.4 in) TZ
1,600 mm (63.0 in) TZ2
Height1,199 mm (47.2 in) TZ
1,020 mm (40.2 in) TZ2
Curb weight660 kg (1,460 lb) (TZ)
620 kg (1,370 lb) (TZ2)
Chronology
PredecessorAlfa Romeo Giulietta SZ
SuccessorAlfa Romeo GTA
Alfa Romeo Tipo 33

The Alfa Romeo Giulia TZ (also known as the Alfa Romeo TZ or Tubolare Zagato) was a sports car and racing car manufactured by Alfa Romeo from 1963 to 1967. It replaced the Giulietta SZ. In 2011, the name was reduced from Giulia TZ to TZ in the new TZ3 model.

Giulia TZ[edit]

Rear view of the Alfa Romeo Giulia TZ

The original TZ, currently sometimes referenced as TZ1 to differ from later TZ2 was presented at the 1962 Turin Auto Show.

It featured a 1,570 cc twin cam engine and other mechanical components shared with the Alfa Romeo Giulia and carried a 105 series chassis number,[2] but was a purpose built sports racing car, with a tubular spaceframe chassis built in the province of Perugia by SAI Ambrosini and the light all-aluminium bodywork was made by Zagato, final assembly was made Delta of Udine, with Carlo Chiti initially on board as a consultant before becoming the project leader. The firm soon changed its name to Auto-Delta and relocated to its current site in Settimo Milanese, on the outskirts of Milan, not far from the Alfa Romeo Portello Plant.[3]

It has disc brakes and independent suspension. The result was a lightweight coupé of only 650 kilograms (1,430 lb)[4] and top speed of 134 miles per hour (216 km/h). The TZ was built both for street and racing trim, with the latest racing versions producing up to 160 brake horsepower (120 kW). Alfa's twin-spark cylinder head, as also used in their GTA, contributed to the speed of the TZ; the standard Giulia alloy block with wet steel liners was installed at an angle under the hood of the TZ to improve airflow.

Aiding the TZ in its quest for performance was the treatment of the rear bodywork. Incorporating the research of Dr. Wunibald Kamm, the TZ used a style called coda tronca in Italian, meaning "short tail.", otherwise known as the Kamm tail. The principle is that unless an aircraft-like extended tail is incorporated, which is not practical for an automobile, there is little, if any, increase in drag and a marked decrease in lift or even some downforce by simply chopping off a portion of the tail. Zagato had previously proved the success of this tail treatment in their coda tronca Sprint Zagato sports-racing cars, and it was a natural evolution to adapt this to the Giulia TZ.

The car debuted at the 1963 FISA Monza Cup, where TZs took the first four places in the prototype category. At the beginning of 1964 the TZ was homologated (100 units were needed for homologation) to the Gran Turismo category.[5] After homologation it started to take more class wins in Europe and North-America. Of the first TZ, 112 units were built between 1963 and 1965. Only built as limited amount these TZ models are quite collectibles nowadays, listed price around 150,000-200,000 US dollars.[6]

Engine[edit]

  • 1,570 cc straight-4 DOHC 112 bhp (82 kW) at 6500 rpm (road trim), 160 bhp (118 kW) (race trim)

Giulia TZ2[edit]

Rear view of TZ2
Alfa Romeo TZ2, Andrea de Adamich and Giacomo Russo in Hatzenbach section 1000km Nürburgring 1965; 17th overall, winner of the GT class up to 1.6 liters, 40 laps in 7: 00: 53.400 hours

A new version of TZ was introduced at the Turin Auto Show in 1964 in the Zagato stand. In order to reinforce the structure and further reduce the car's weight, Zagato replaced the light alloy body with an even more streamlined fibreglass body moulded tight to the chassis providing lower drag and reduced weight of 620 kg (1,370 lb). The new design was called the Alfa Romeo Giulia TZ2. The TZ2 was only built as racing version; it was equipped with an Autodelta-prepared twin plug, dry sump lubrication 1,570 cc (1.6 L; 95.8 cu in) DOHC straight-4 engine producing around 170 bhp (127 kW) at 7000 rpm. With this engine the car reached top speed of 245 km/h (152 mph).[7] The rear window was also changed, now single unit rather than three part window in TZ. Development of TZ cars was stopped in the end of 1965, to make room for the new Alfa Romeo GTA racing program. Only 12 TZ2s were built.[7]

The car won the prestigious Gran Turismo Trophy at the 2009 Pebble Beach Concours d'Elegance.

Race results[edit]

The TZ2 took class win on 25 April 1965 in the 1000 km of Monza, with Bussinello-De Adamich finishing seventh overall and first in the GT 1600 category. Also in 1965 it took class victories thanks to Rolland-Consten in the 12 Hours of Sebring; Bianchi-Rolland in the Targa Florio; and Adamich-"Geki" in the 1000 km of Nürburgring, the 6 Hours of Melbourne, the Giro d'Italia and the Criterium des Cevennes. There were further class wins the following year: at Monza (De Adamich-Zeccoli), Sebring (Andrey-"Geki"), in the Targa Florio (Pinto-Todaro) and at the Nürburgring (Bianchi-Schultze).[3]

TZ3[edit]

Alfa Romeo Zagato TZ3
Alfa romeo tz3 corsa front.jpg
A 2011 Alfa Romeo TZ3 Corsa
Overview
ManufacturerAlfa Romeo
Also calledAlfa Romeo TZ3
Production2011 (1 Corsa, 9 Stradales)
DesignerNorihiko Harada of Zagato
Body and chassis
ClassSports car (S)
Body style2-door coupe
LayoutFront longitudinal mid-engine, rear-wheel drive
RelatedDodge Viper SRT-10
Powertrain
Engine4.2L naturally-aspirated dry-sump lubricated 90-degree DOHC 4-valve V8 - Corsa
8.4L Viper naturally-aspirated all-aluminum 90-degree OHV 2-valve V10 - Stradale
Transmission6-speed sequential - Corsa
6-speed Tremec TR6060 manual - Stradale
Dimensions
Wheelbase2,500 mm (98 in) - Corsa
2,510 mm (99 in) - Stradale
Length4,345 mm (171.1 in) - Corsa
4,459 mm (175.6 in) - Stradale
Width1,944 mm (76.5 in) - Corsa
1,911 mm (75.2 in) - Stradale
Height1,200 mm (47 in) - Corsa
1,210 mm (48 in) - Stradale
Curb weight850 kg (1,870 lb) - Corsa
1,450 kg (3,200 lb) - Stradale

The TZ3 was built in two forms, celebrating Alfa Romeo's centenary (1910-2010) in two different heritages.

Zagato TZ3 Corsa[edit]

Alfa Romeo TZ3 rear end

The Alfa Romeo TZ3 Corsa is the track version of the TZ3 (hence the name TZ3 Corsa, corsa meaning race in Italian) built to celebrate 100 years (a century) of Alfa Romeo in racing. The Corsa is a one-off car that was first presented at, and won, the 2010 Concorso d'Eleganza Villa d'Este in Italy. This unique car, based on the Alfa Romeo 8C Competizione, was made for German collector Martin Kapp and is not intended for sale or for competitions.

The car weighs 850 kg (1,874 lb) thanks to its carbon fiber frame and hand beaten aluminium body and has a 420 hp (313 kW) dry sump V8 4.2 litre engine. The car has a 6-speed sequential gearbox, it reaches a top speed of over 300 km/h (186 mph) and it can accelerate from zero to 100 km/h (62 mph) in 3.5 seconds.

The chassis is a carbon-fiber monocoque with some tubular elements. The suspension setup, front and rear, are double wishbones, with pushrod actuated coil springs, and dampers from Ohlins.[8]

Zagato TZ3 Stradale[edit]

Jenson Button driving a TZ3 Stradale at Goodwood FoS 2012

The Alfa Romeo TZ3 Stradale is the road version of the TZ3 (hence the name TZ3 Stradale, stradale meaning road in Italian), designed by Norihiko Harada of Zagato, and was built to celebrate 100 years of Alfa Romeo on the road. The TZ3's chassis is based on the Dodge Viper ACR-X, and has been re-bodied to suit road conditions. Only nine units of the vehicle have been made.[9]

The TZ3 is powered by the ACR-X's odd-firing 8.4-liter Viper all-aluminum 90° OHV 2-valve V10, but its power has been reduced, this time boasting 600 horsepower (450 kW; 610 PS) at 6100 rpm, and 560 pound-feet (760 N⋅m) of torque at 5000 rpm.[9] Redline is reached at 6250 rpm. All of this power is delivered to the rear wheels, via a 6-speed Tremec TR6060 manual transmission.

The interior design is mainly the same as a regular Viper, but the badges change to Alfa Romeo.

The body and the frame come from the ACR-X, which are manufactured with SMC & rim panels over a tubular space frame.[9]

The brake discs, which are 2-piece, come from StopTech, and the calipers are from Brembo.

The steering wheel is rack-and-pinion, with power assist.

The suspension setup for front and rear are A-arms, with coil-over shocks and stabilizer bars.

Giulia TZ4[edit]

The car will be built to celebrate Zagato centenary in 2019.

See also[edit]

Notes[edit]

  1. ^ Chris Koopmann. "Ercole Spada". zagato-cars.com. Retrieved 2012-05-24.
  2. ^ "Alfa Romeo Model Identification". international-auto.com. Archived from the original on 27 September 2007. Retrieved 2007-09-05.
  3. ^ a b Alfa Romeo Giulia TZ 2: Zoute Grand Prix - Alfa Romeo Giulia TZ 2, accessdate: 29. June 2019
  4. ^ David Owen, Great Marques Alfa Romeo, P62. "650 kg (1430 lb) ready for the track"
  5. ^ "Autodelta - a history". italiancar.net. Archived from the original on 2013-04-10. Retrieved 2007-09-05.
  6. ^ "1965 Alfa Romeo Giulia TZ". sportscarmarket.com. Archived from the original on 2007-09-22. Retrieved 2007-09-05.
  7. ^ a b "Alfa Romeo Giulia TZ 2". fcaheritage. Retrieved 2018-06-17.
  8. ^ "Alfa Romeo TZ3 Corsa - Specifications". UltimateCarPage.com. Retrieved 2017-03-05.
  9. ^ a b c "2011 Alfa Romeo TZ3 Stradale | Zagato | SuperCars.net". Supercars.net. 2016-04-23. Retrieved 2017-03-04.

References[edit]