Lancia Delta HF Integrale 16V group A (1989)
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Home » Rally Cars » Lancia Delta HF Integrale 16V
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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: A5394
Years active 1989 - 1991 Homologation start: 1/1/1989
Homologation end: 31/12/1996
Engine
Type Fiat Twin Cam (Lambredi), Type 831D5.000, straight 4 cyl, 4 stroke located front transverse with 18o front inclination
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 forged steel crankshaft with 5 main bearings 53mm diameter, big end journal diameter 50.8mm connecting rod length between centers 145mm, big end bearing internal diameter 53.9mm, aluminium alloy pistons with 39mm compression height
Materials block: cast iron, 229 mm deck height, fitted with twin counter-rotating balancer shafts cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers
Cams/valves 2 overhead camshafts (DOHC), belt driven 4 valves/cyl - 16 valves total. 34.6mm inlet valve diameter, 28.6mm 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 TB0385 (11 blades steel turbine 48.6/58.9mm in/out diameter, 14 blades aluminium compressor 48.8/69mm in/out diameter) turbocharger with air/air 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 jacketed watercooled with pump, radiator, fan and thermostat 6.2 lt
Lubrication system wet or dry sump with 1 oil cooler 5.6 lt
Transmission
Type 4 wheel drive 5 speed or ZF/Abarth R90, 6 speed manual 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: 2.286/1, (32/14)
3rd: 1.706/1, (29/17)
4th: 1.350/1, (27/20)
5th: 1.130/1, (26/23)
6th: 0.960/1 (24/25)
R: 2.867/1 (43/15)
1990: R: 3.182/1, (35/11)		 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)
1990: R: 3.182/1, (35/11)
Diffrential ratio Epicyclical: 3.111/1 (56/18), 3.058/1 (52/17), 3.176/1 (54/17), 3.312/1 (53/16), 3.437/1 (55/16), 3.600/1 (54/15), 3.733/1 (56/15), 3.928/1 (55/14), 4.071/1 (57/14), 4.231/1 (55/13), 4.385/1 (57/13), 4.538/1 (59/13), 3.421/1 (65/19), 3.667/1 (55/15), 3.500/1 (56/16), 3.375/1 (54/16), 4.308/1 (56/13), 4.462/1 (58/13), 4.154/1 (54/13), 3.857/1 (54/14), 3.909/1 (43/11), 4.091/1 (45/11), 4.182/1 (46/11), 4.400/1 (44/10), 4.500/1 (45/10), 3.750/1 (45/12), 3.538/1 (46/13).
1991: 3.400/1 (51/15), 3.428/1 (48/14), 3.461/1 (45/13), 3.417/1 (41/12), 3.500/1 (49/14), 3.500/1 (42/12), 3.571/1 (50/14), 3.615/1 (47/13), 3.583/1 (43/12), 3.786/1 (53/14), 3.769/1 (49/13), 3.923/1 (51/13), 3.917/1 (47/12), 4.077/1 (53/13), 4.083/1 (49/12), 4.167/1 (50/12), 4.214/1 (59/14), 4.250/1 (51/12), 4.200/1 (42/10), 4.417/1 (53/12), 4.364/1 (48/11), 4.583/1 (55/12), 4.545/1 (50/11)
1993: 4.272/1 (47/11).
Transfer box x rear differential: 19/43x43/19, 15/34x34/15, 16/36x36/16
1991: 15/35x35/15, 15/36x36/15, 17/38x38/17, 14/34x34/14, 13/32x32/13, 15/37x37/15, 11/27x27/11, 13/28x28/13, 17/27x27/17, 14/32x32/14, 12/30x30/12, 13/34x34/13		 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 rear subframe for suspension. 28-29-32kg Steel 25CrMo4 Norm (D40x1.5mm), 35kg (D40x2mm) roll-cage. 5 door hatchback steel bodyshell with steel front bonnet with aluminium air grills, steel rear bonnet, steel front/rear doors, plastic front/rear bumpers and extended wheel arches
Front suspension Mac pherson strut with lower 'A' wishbone, coil springs, telescopic gas shock absorbers and anti-roll bar
Rear suspension Mac pherson struts with 1 lower transverse arm, 1 lower trailing arm, coil springs, telescopic gas shock absorbers and anti-roll bar
Steering system rack and pinion with or without hydraulic power assistance 2.0 turns lock to lock, 17.6/1 and 14.5/1 ratio
Brakes Front ventilated discs 284mm diameter with 1 cast iron piston caliper 54mm diameter, rear solid discs 227mm diameter with 1 cast iron piston caliper 34mm diameter.
Front ventilated discs 330mm diameter with 2+2 aluminium piston calipers 2x38+2x42mm pairs diameter. 332mm diameter with 2+2 aluminium piston calipers 2x36+2x44mm pairs diameter.
Front/rear ventilated disks 256/282/313mm diameter with 2+2 aluminium piston calipers 2x36+2x44mm pairs diameter, 256/282/313 disc diameter with 2 aluminium piston calipers 42/48mm diameter. 284mm disc diameter with 2+2 aluminium piston calipers 2x41.3+2x38.1mm pairs diameter.
Rear solid discs 227mm diameter with 2 aluminium piston calipers 38mm diameter, ventilated discs as previus paragraph plus additional 2 aluminium piston calipers 30/36/38mm diameter, 278 disc diameter with 2 aluminium piston calipers 38/42/48mm diameter, 278mm disc diameter with 2+2 aluminium piston calipers 2x36+2x40mm diameter, 282mm disc diameter with 2 aluminium piston calipers 38mm diameter
1990: front ventilated discs 355mm diameter with 2+2 aluminium piston calipers 2x38+2x44mm pairs diameter, rear ventilated discs 278mm diameter with 2+2 aluminium piston calipers 2x30+2x34mm pairs diameter.		 dual circuit with Benditalia-Isovac vacuum servo and adjustable ratio split front to rear. Front cooling spiral pastic tube for brakes, and discs protection shields
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
Fuel tank 57 lt (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 24/16 21/18 47/35 (75%)
Others
Races +1 +2/1 6 2 1 3 2 17/1
Entries/finishes 3/3 29/20 62/33 14/5 4/1 7/4 5/4 4/2 129/69 (54.3%)
Total WRC results
Races/wins 1/1 10/6 13/6 6 2 1 3 2 38/13
Entries/finishes 5/4 53/36 83/51 14/5 4/1 7/4 6/4 5/3 176/104 (59.8%)
Total points 20 214 267 3 504
(13.263 per race)
(2.896 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
460220		 works acci dent
Dario Cerrato
Giuseppe Cerri
458663		 Joly Club 4th
Paolo Alessandrini
Alessandro Alessandrini
480880		 8th
Riccardo Errani
Fabio Villa		 19th
Total points
()		 20 20
Statistics
Works starts/finishes 2/1 2/1
Others starts/finishes 3/3 3/3

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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lancia-delta-hf-integrale-16v.png Source

Engine

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Garret Turbine

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Transmission

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

Chassis

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lancia-delta-autre-36276.jpg Source
page revision: 225, last edited: 14 Sep 2019 10:30
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