Lancia Delta HF Integrale group A (1988)
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Home » Rally Cars » Lancia Delta HF Integrale
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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
Production

Specifications

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Group/Class A/8 Homologation number: A5355
Years active 1988 - 1989 Homologation start: 1/3/1988
Homologation end: 31/12/1995
Engine
Type Fiat Twin Cam (Lambredi), Type 831C5.000, 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 280 HP / 6500 rmp
295 HP / 7000 rpm		 38.7 kgm (380 Nm) / 4000 rpm
41.0 kgm (402 Nm) / 4000 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 tunnel diameter 53.9mm, aluminium alloy pistons with 39.5 mm 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 2 valves/cyl. - 8 valves total. 43.8mm inlet valve diameter, 36.5mm 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 TB0338 (11 blades steel turbine 48.6/58.9mm in/out diameter, 14 blades aluminium compressor 49.5/70mm 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: 1.6 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 sump with oil cooler 5.5 lt
Transmission
Type 4 wheel drive 5 speed manual gearbox. ZF/Abarth R70, 6 speed manual gearbox
Gearbox ratios 1st: 3.500/1 (42/12)
2nd: 2.235/1 (38/17)
3rd: 1.518/1 (41/27)
4th: 1.132/1 (43/38)
5th: 0.928/1 (37/42)
R: 3.583/1 (43/12)		 1st: 2.846/1 (37/13)
2nd: 2.000/1 (32/16)
3rd: 1.526/1 (29/19)
4th: 1.227/1 (27/22)
5th: 1.037/1 (28/27)
R: 2.867/1 (43/15)		 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)		 1989: 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)
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).
1989: 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.
1989: 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
Clutch dry single disk or double disk. Valeo electronically controlled. 230mm diameter
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/rear bonnets, 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/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. Front 332mm disc diameter with 2+2 aluminium piston calipers 2x36+2x44mm 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.
1989: front 330mm disc diameter with 2+2 aluminium piston calipers 2x38+2x44mm pairs diameter. Rear 282mm disc diameter with 2 aluminium piston calipers 38mm diameter. Rear 278 disc diameter with 2 aluminium piston calipers 38/42/48mm diameter. Rear 278mm disc diameter with 2+2 aluminium piston calipers 2x36+2x40mm 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" x 14", or 5.5" - 6.5" x 15", tarmac: 9 x 16" gravel: Michelin, 185/640-15", 16/62-15, L91 14/62-15. Pirelli, SG35 or SG90 195/70-14. tarmac: Michelin, 245/610-16"
Weight 1120 kg
Fuel tank 57 lt, 30 to 120 lt
Drag coefficient 0.42

Results in WRC

Statistics

1988 1989 1990 1991 1992 1993 1994 1995 Total
Works
Races/wins 9/8 8/5 1 18/13
Entries/finishes 19/16 17/13 3/1 39/30 (76.9%)
Others
Races +3/1 +7 4 1 1 1 17/1
Entries/finishes 20/11 56/19 22/10 5/1 2/1 1/0 3/0 109/42 (38.2%)
Total WRC results
Races/wins 9/8 11/6 8 4 1 1 1 35/14
Entries/finishes 39/27 73/32 25/11 5/1 2/1 1/0 3/0 148/72 (48.3%)
Total points 205 198 10 413
(11.472 per race)
(2.772 per entry)

Races

Works team: Martini Lancia

Season
Entry Rally event
Driver
Codriver		 Team M.C
Entry list		 SVE
Entry list		 POR KEN TdC GRE Oly (N.Z) ARG FIN (CdI) S.R RAC
Markku Alén
Ilkka Kivimäki
417882		 works 6th
Markku Alén
Ilkka Kivimäki
418042		 works 4th
Markku Alén
Ilkka Kivimäki
418514		 works 1st 4th
Markku Alén
Ilkka Kivimäki
418047		 works 1st
Miki Biasion
Tiziano Siviero
417885		 works 1st 1st
Miki Biasion
Tiziano Siviero
418041		 works 1st
Miki Biasion
Tiziano Siviero
417887		 works 1st
Miki Biasion
Tiziano Siviero
418042		 works 2nd
Miki Biasion
Tiziano Siviero
418047		 works 1st
Bruno Saby
Jean-François Fauchille
417886		 works 3rd
Yves Loubet
Jean-Bernard Vieu
417995		 works 2nd
Yves Loubet
Jean-Bernard Vieu
376021		 Joly Club acci dent
Yves Loubet
Jean-Bernard Vieu
417885		 Joly Club acci dent
Mikael Ericsson
Claes Billstam
417994		 works trans miss ion
Mikael Ericsson
Claes Billstam
418043		 works 2nd
Mikael Ericsson
Claes Billstam
417880		 works 2nd
Mikael Ericsson
Claes Billstam
418514		 works acci dent
Vic Preston, Jr
John Lyall		 works diff eren tial
Jorge Recalde
Jorge del Buono
417887		 works 1st
Alex Fiorio
Luigi Pirollo
417878		 Joly Club 3rd 2nd 7th
Alex Fiorio
Luigi Pirollo
417880		 Joly Club 2nd
Dario Cerrato
Giuseppe Cerri
405476		 Joly Club 3rd
Jean-Michel Fabre
Pascale Manau		 dnf
Jigger'
Kóstas Stefanis
378423		 6th
Franz Wittmann
Jörg Pattermann
361830		 Lancia Rally Team Austria 3rd
Harry Joki
Per Carlsson		 Swedish Automobile Sports Federation 8th
Sebastian Lindholm
Staffan Pettersson		 Autodrive trans miss ion
Harri Toivonen
Cedric Wrede		 dnf
Antero Laine
Jari Hyrylä		 dnf
Petri Viitala
Kalevi Kujanpää		 DTW Motorsport susp ens ion
Paolo Alessandrini
Alessandro Alessandrini
366067		 10th
Maurizio Ferrecchi
Gianfranco Imerito
378276		 14th
Giacomo Bossini
Ugo Pasotti		 acci dent
Erwin Keller
Ronny Hofmann		 dnf
Pentti Airikkala
Brian Murphy		 Safety Devices 4th
Total points
(1st)		 205 15 10 17 39 19 27 26 35 17
Statistics
Works starts/finishes 19/16 3/2 2/1 2/2 3/3 1/1 2/2 2/2 2/2 2/1
Others starts/finishes 20/11 1/0 3/2 1/1 1/1 6/2 7/4 1/1
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Information and articles

Article from 4T 216, 9/1988

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Article from 4T 219, 12/1988: Martini racing

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Article from 4T 232, 1/1990: Cyclon - ΗΒ team (GR)

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Drawings

abarth_lancia_delta_1988_wallpapers_1_b.jpg Source
lancia_delta_hf_integrale-42874.jpg

Engine

cutaway%20lancia%20delta1b.bmp Source

Transmission

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

Suspension

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

Roll cage

Lancia%20Delta%204WD%2000753024.jpg Source
Roll cage. Material 25CrMo4 and Fe45. Homologation number ONS 418/67
page revision: 243, last edited: 21 Apr 2019 08:04
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