Lancia Delta HF Integrale 16V group A (1989)
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Home » Rally Cars » Lancia Delta HF Integrale 16V
editorial-editorial-32082.jpg Source Development chain
1987: Lancia Delta HF 4WD
1988: Lancia Delta HF Integrale
1989: Lancia Delta HF Integrale 16V
1992: Lancia Delta HF Integrale Evoluzione
Development level
Group A
Group N
Production

Specifications

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Group/Class A/8 Homologation number: A 5394
Years active 1989 - 1991 Homologation start: 1/1/1989
Engine
Type Fiat Twin Cam (Lambredi), Type 831D5.000, straight 4 cyl, 4 stroke located front transverse
Capacity 1995 cc WRC: x 1.7 = 3392 cc
Bore x Stroke (mm) 84.0 x 90.0
Compression ratio 7.5:1
Output power - torgue 300-330 HP / 7000 rpm 41.0 - 45.9 kgm (402 - 450 Nm) / 4500 rpm
Main bearings 5 of 53mm diameter connecting rod length between centers 145mm, big end bearing internal diameter 54mm
Materials block: cast iron, fitted with twin counter-rotating balancer shafts cylinderhead: aluminium alloy
Cams/valves 2 overhead camshafts (DOHC), belt driven 4 valves/cyl - 16 valves total. 34.5mm inlet valve diameter, 28.5mm exhaust valve diameter. 32.5o angle between inlet valve axis and vertical, 32.5o angle between exhaust valve axis and vertical. 2 coil springs per inlet and exhaust valve
Aspiration Garrett AiResearch T03 (60/50) oil lubricated, water cooled turbocharger with intercooler, Weber-Marelli IAW90 multipoint electronic fuel injection.
1990-1991: 40mm turbo restrictor fitted.
1992-1994: 38mm turbo restrictor fitted.
1995+: 34mm turbo restrictor fitted.
pressure: 1.8 bar (max)
Ignition Weber-Marelli IAW90 Digiplex mapped electronic, firing order 1-3-4-2
Cooling system watercooled 6.2 lt
Lubrication system dry sump with oil cooler 5.6 lt
Transmission
Type 4 wheel drive 5 speed or ZF/Abarth R90, 6 speed gearbox
Gearbox ratios 1st: 3.500/1 (42/12)
2nd: 2.176/1 (37/17)
3rd: 1.524/1 (32/21)
4th: 1.156/1 (37/32)
5th: 0.917/1 (33/36)
R: 3.545/1 (39/11)
1st: 3.182/1, (35/11)
2nd: 2.462/1, (32/13)
3rd: 1.875/1, (30/16)
4th: 1.474/1, (28/19)
5th: 1.238/1, (26/21)
6th: 1.043/1 (24/23)
R: 2.867/1 (43/15)
Diffrential ratio center, 3.437/1 (55/16) or 3.733/1 (56/15) or 4.071/1 (57/14) or 4.385/1 (57/13), or 3.111/1 (56/18). Transfer box 1/2.263 (19/43), rear differential 2.263/1 (43/19) Helical gear epicyclical center differential, with one side-two homocentric hollow shafts outputs, 1st to front differential housing, 2nd to thansfer box. Viscous coupling clutch controls torque spliting between front differential casing and transfer box through hollow shafts. Limited slip front differential. Hypoid spiral bevel gear transfer box transfers torque to, hypoid spiral bevel gear, torsen rear differential. 50-50 % or 40-60% or 45-55% front/rear torque distribution
Electronically controlled viscous coupling clutch from tour de Corse '91
Clutch dry double disk, 236mm diameter, valeo hydraulic electronically controlled
Chassis
Type Steel monocoque ZLA 831 ABO chassis with roll-cage and rear subframe for suspension. 5 door hatchback steel bodyshell with extended wheel arches
Front suspension Mac pherson strut with 2 lower arms that form a triangle, coil springs, telescopic gas shock absorbers and anti-roll bar
Rear suspension Mac pherson struts with twin parallel lower transverse arms, longitudinal reaction arms, coil springs, telescopic gas shock absorbers and anti-roll bar
Steering system power assisted rack and pinion 2.8 turns lock to lock
Brakes front ventilated disks 332/313/303mm diameter with 4 piston calipers, rear ventilated disks 303/282mm diameter with 2 piston calipers 2 dual circuits with servo and adjustable ratio split front to rear
Dimensions
length: 3.900 m (153.5 in) width: 1.700 m (66.9 in) height: 1.360 m (53.5 in)
wheelbase: 2.480 m (97.6 in) front track: 1.488 m (58.6 in) rear track: 1.458 m (57.4 in)
Rims - tires gravel: 5.5" or 6.5" x 15"
tarmac: 9 x 16"
Michelin, gravel: 185/640-15"
tarmac: 245/610-16"
Weight 1100 kg
Weight/power 3.7 kg/HP
Fuel tank 70lt (30 to 120lt)
Drag coefficient 0.44

Results in WRC

Statistics

1989 1990 1991 1992 1993 1994 1995 1996 Total
Works
Races/wins 1/1 9/6 11/5 21/12
Entries/finishes 2/1 25/17 21/18 48/36 (75%)
Others
Races +2/1 5 2 1 3 2 15/1
Entries/finishes 2/2 21/16 60/33 14/3 4/1 7/4 5/4 4/2 117/65 (55.5%)
Total WRC results
Races/wins 1/1 9/6 13/6 5 2 1 3 2 36/13
Entries/finishes 4/3 45/33 80/50 14/3 4/1 7/4 6/4 5/3 165/101 (61.2%)
Total points 13 214 267 3 497
(13.806 per race)
(3.012 per entry)

Races

Works team: Martini Lancia

Season
Entry Rally event
Driver
Codriver
Team (SVE)
Entry list
MC
Entry list
POR
Entry list
KEN TdC GRE (NZ) ARG FIN AUS SR (CdI) RAC
Miki Biasion
Tiziano Siviero
works 1st
Didier Auriol
Bernard Occelli
works acci dent
Paolo Alessandrini
Alessandro Alessandrini
8th
Riccardo Errani
Fabio Villa
19th
Total points
()
13 13
Statistics
Works starts/finishes 2/1 2/1
Others starts/finishes 2/2 2/2

Article from 4T 232, 1/1990

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Article from Auto Express (greece) 263, 6/1989

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Article from 4T 225, 6/1989

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int16v90.jpg Source
Didier Auriol in Monte Carlo rally 1990
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Drawings

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10015943t2.jpg Source
lancia-delta-hf-integrale-16v.png Source

Engine

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Garret Turbine

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Transmission

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Front differential with Ferguson-type viscous coupler and self-locking differential
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Back Torsen differential (5:1 torque ratio)

Chassis

lancia-delta-autre-36275.jpg Source
lancia-delta-autre-36276.jpg Source
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