In May 1986 FIA decided that competition should not be based on engine power alone and terminated the ever so dangerous Group B class. The newfound Group A regulations limited maximum power thereby promoting development in other equally critical areas of the vehicle such as the steering, suspension and drivetrain. Homologation required the production of at least 5000 units within 12 months of the model to be modified into Group A specifications. Notably, Lancia's Delta HF 4WD production vehicle was developed around Group B Delta S4 all wheel drive system making it the only promising candidate to address FIA's regulations. The highly sophisticated system used 3 differentials to maximize grip and outperform all rear wheel drive competition. The middle epicyclic geared differential split torque by 56/ 44 front to back axles. However, if one the 2 axles rotated at different speeds, the Ferguson viscous coupling would alter the torque ratio by sending more power to the slower axle. Furthermore, torque to the rear axle would be distributed via a Torsen differential of 70% maximum locking that would ensure more power directed to the slower wheel. Overall the system was very effective in applying all 165 bhp of the road version to the 4 wheels but not so when power was raised to 240 bhp in its Group A variant. Despite winning the 1987 World Rally Champion, Lancia addressed the traction control and power delivery via revising the Delta 4WD into the Integrale 8V that featured all proper modifications. In specific, fitting larger fenders permitted for larger wheels that offered superior traction and cornering. Accordingly the brakes and suspension were modified to provide room for greater power from the engine. The 8-valve unit was treated with a larger 11-blade Garrett T3 turbocharger, a bigger intercooler and new valves reaching 185 bhp in its road version and 295 bhp in its Group A tuned variant. The Integrale was the first Delta designed to Group A specifications and despite all subsequent upgrades it was the most successful of its Delta siblings with 14 World Rally Championship wins and both manufacturer's and driver's titles.
The Delta offered was based on an HF 4WD prior to being fully upgraded to Integrale 8V Group A tarmac specifications. The never-before-raced body was stripped to undergo lightweight modifications and install an FIA-approved 6-point roll cage. The engine was developed to an output of 295 bhp via cylinder head porting, forged crankshaft, rods, pistons and revised ECU. The suspension received fully adjustable telescopic shocks, new crossbars and polyurethane bushing. Fully FIA HTP certified, this powerful hillclimb performer achieved numerous distinctions in class in the Hellenic Motorsport Federation Championship.

Year: 1988
Make: Lancia
Model: Delta HF Integrale 8V
Body type: 5dr, hatchback
Chassis code: ZLA 831 ABO
Engine code: 831C5. 000
Engine type: 1995 cc, in-line 4, 2-valves per cylinder, DOHC, ported cylinder head, forged steel crankshaft, 5 main bearings, alloy forged high compression pistons and rods, Weber-Marelli IAW90 multipoint electronic injection, Garrett T3 turbocharged with air/ air intercooler, tested output 295 bhp
Transmission type: 5-speed, manual
Drivetrain: AWD
Exterior color, theme: Rosso Corsa, Martini Racing livery

Group: A

Certificates:
- Federation Internationale des Vehicules Anciens (FIVA) Identity Card,
issued 2013
- Hellenic Motorsport Federation Technical Passport, issued 2020
- Hellenic Motorsport Federation Registration Certificate, issued 2020
- Historic Technical Passport (FIA-HTP), issued 2021

Rally participations, standings:
30th May 2021: Kimis Hillclimb, Greece, 2nd in FIA historic category
26th June 2021: Ritsona Hillclimb, Greece, 2nd in FIA historic category
23rd April 2023: Aigiou Rally, Greece, 2nd in class
24th June 2023: Ftiotidos Hillclimb, Greece, 2nd in FIA historic category
25th November 2023: Palldio Rally, Greece, 2nd in class

Awards:
11-12th December 2021: Paladio Asphalt Cup, Greek Championship, 1st place overall in FIA historic category

Registration: Greek, passenger vehicle, street legal



Upgrades

Body:
- Bare metal lightweight modification
- Sassa Roll Cage, 6-point, bolt-on, FIA-certified

Interior:
- Lightweight plastic door panels with fabric loops
- Shortened center console
- Carbonkevlar driver’s and passenger’s side footwells
- Carbonkevlar cabin air vent
- OMP alloy pedal set
- Linea Sport Racing Kobra kevlar seat with Lancia emblem, FIA-compliant, expiration 2024
- Linea Sport 4-point safety harness

Electrics:
- On board and exterior emergency cut off switches
- New wiring loom fitted
- Aeroflow battery tray
- Racing sparkplug leads
- SIEM 4-lamp assembly Carbonkevlar – not fitted

Engine:
- Cylinder head ported
- Forged crankshaft
- Forged pistons and rods
- ECU Tuning
- Aeroflow air filter
- Aeroflow oil catcher
- Racing engine mounts
- Electric fuel pumps
- Samco Sport cooling hoses
- Single box single tip stainless steel performance exhaust

Transmission:
- Racing 5 points flywheel and clutch
- Racing gearbox mounts
- Group A shifter housing

Suspension:
- Proflex fully adjustable telescopic gas coilover shock absorbers
- New rear crossbars fitted
- Sparco antiroll bar
- Powerflex polyurethane bushings

Brakes:
- High pressure lines

Wheel sets:
- Speedline Monte Carlo, 16” with Toyo Proxes 235/ 45. 16 fitted
- OZ Racing Magnesium Crono 5-spoke, 16’’ with Pirelli Corsa 235/ 45. 16
fitted
- Compomotive TH1882, 16’’ with Yokohama A0052, 235/ 45. 16 fitted