552 Lancia Delta S4 (Group B) (1985)
Lancia Delta S4 (1985-86) Engine 1759cc Flat 4 16v DOHC Supercharged, turbocharged and intercooled
Owner-Driver Henry Pearman
LANCIA SET
www.flickr.com/photos/45676495@N05/sets/72157623795824232...
The Lancia Delta S4 is a Group B rally car , built to compete in WRC Group B in 1985 and 1986, until the Group B class was banned by the FIA
he car replaced, and was an evolution of the 037 taking full advantage of the Group B regulations, and featured a midship-mounted engine and all-wheel drive. The 1759cc Inline-four engine combined supercharging and turbocharging to reduce turbo lag at low engine speeds generatimg an output of 483 to 500bhp. In 1985 Lancia tested the engine at 5 bars of boost in extreme conditions achieving 1000bhp. The engine capity was designed to fit the FIA permution of a multiple of 1.4 applied to forced induction engines qualifying the S4 in the under 2'5 litre catagory, which allowed for a minimum weight of 890kg. The combined super/turbocharger system (often referred to as twincharging) was a development of the 037 engine that generated 325 hp (242 kW) with a supercharger only.
Like Peugeot's earlier 205 T16, the mid-engine Lancia Delta S4 was a silhouette race car sharing virtually nothing with the production front-engine Delta. The bodywork was made of a carbon fibre composite with front and rear bodywork fully detachable for fast replacement due to accident damage, allowing ease of access during on-event servicing. The door construction was a hollow l all-Kevlar construction that had no inner door skin, no door handle or window winder. The door was opened with a small loop and the windows were fixed perspex with small sliding panels to allow ventilation and passing of time cards. The all-wheel drive system, developed in cooperation with English company Hewland, featured a centre differential which allowed for 60-75% of the torque to go to the rear wheel
In competition, the car won its first event, the 1985 RAC Rally in the hands of Henri Toivonen and carried Markku Alén to second in the drivers' championship the following year. For two weeks after the end of the 1986 season Alen was champion until the FIA annulled the results of the Sanremo Rally due to irregular technical scrutineering, despite victories in the Monte Carlo, by Toivonen, Rally Argentina by Massimo Biasion and the Olympus Rally by Alén The car also won the 1986 European Rally Championship with Italian driver Fabrizio Tabaton, whose car was run by Italian team HF GRIFONE in ESSO livery
It was an the fatal accident of a Delta S4 Toivonen and co-driver Sergio Cresto on the 1986 Tour de Corse, where the Finnish driver inexplicably missed a tight left-hand hairpin bend and plunged into a ravine. that led directly to the banning of Group B rallying
This car was the first Delta S4 to compete when Marku Alen drove to second place in the 1985 Algarve Rally, and in the WRC debut in the 1-2 1000 Lakes.
Thankyou for a massive 55,739,920 views
Shot 17.07.2016 at Shelsey Walsh Classic Nostalgia Meeting, Worcestershire REF 121-552
552 Lancia Delta S4 (Group B) (1985)
Lancia Delta S4 (1985-86) Engine 1759cc Flat 4 16v DOHC Supercharged, turbocharged and intercooled
Owner-Driver Henry Pearman
LANCIA SET
www.flickr.com/photos/45676495@N05/sets/72157623795824232...
The Lancia Delta S4 is a Group B rally car , built to compete in WRC Group B in 1985 and 1986, until the Group B class was banned by the FIA
he car replaced, and was an evolution of the 037 taking full advantage of the Group B regulations, and featured a midship-mounted engine and all-wheel drive. The 1759cc Inline-four engine combined supercharging and turbocharging to reduce turbo lag at low engine speeds generatimg an output of 483 to 500bhp. In 1985 Lancia tested the engine at 5 bars of boost in extreme conditions achieving 1000bhp. The engine capity was designed to fit the FIA permution of a multiple of 1.4 applied to forced induction engines qualifying the S4 in the under 2'5 litre catagory, which allowed for a minimum weight of 890kg. The combined super/turbocharger system (often referred to as twincharging) was a development of the 037 engine that generated 325 hp (242 kW) with a supercharger only.
Like Peugeot's earlier 205 T16, the mid-engine Lancia Delta S4 was a silhouette race car sharing virtually nothing with the production front-engine Delta. The bodywork was made of a carbon fibre composite with front and rear bodywork fully detachable for fast replacement due to accident damage, allowing ease of access during on-event servicing. The door construction was a hollow l all-Kevlar construction that had no inner door skin, no door handle or window winder. The door was opened with a small loop and the windows were fixed perspex with small sliding panels to allow ventilation and passing of time cards. The all-wheel drive system, developed in cooperation with English company Hewland, featured a centre differential which allowed for 60-75% of the torque to go to the rear wheel
In competition, the car won its first event, the 1985 RAC Rally in the hands of Henri Toivonen and carried Markku Alén to second in the drivers' championship the following year. For two weeks after the end of the 1986 season Alen was champion until the FIA annulled the results of the Sanremo Rally due to irregular technical scrutineering, despite victories in the Monte Carlo, by Toivonen, Rally Argentina by Massimo Biasion and the Olympus Rally by Alén The car also won the 1986 European Rally Championship with Italian driver Fabrizio Tabaton, whose car was run by Italian team HF GRIFONE in ESSO livery
It was an the fatal accident of a Delta S4 Toivonen and co-driver Sergio Cresto on the 1986 Tour de Corse, where the Finnish driver inexplicably missed a tight left-hand hairpin bend and plunged into a ravine. that led directly to the banning of Group B rallying
This car was the first Delta S4 to compete when Marku Alen drove to second place in the 1985 Algarve Rally, and in the WRC debut in the 1-2 1000 Lakes.
Thankyou for a massive 55,739,920 views
Shot 17.07.2016 at Shelsey Walsh Classic Nostalgia Meeting, Worcestershire REF 121-552