skiman_1
Banned
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Having taking our very own good Pablo's advice (and before I got banned) Ive deicded to have it out with the pro's and con's of cosworth, well to my extended knowledge anyway!!
Right I dont want this to turn into a slagging match etc etc... I would just like to set a few things straight.
Alot of people say Cosworth and Ford in general are unreliable. They are as reliable as any other car manufacturer. You have to remember with the likes of the cosworth engine most people compare it to the likes of an Evo or Subaru both of which have at least 10years advancement over the cosworth engine. It was originally developed back in 1981 - Thats 24 Years worth of technology that the Subaru/Evo has over the Cosworth.
"The 16v 1993cc engine easily produced 204 bhp for road use with the help of Garrett T.03b turbocharger and Weber-Marelli fuel injection
the Sierra RS Cosworth reached a top speed of 149 mph"
Now remember for a car released in 1986 having produced 204bhp and 150mph top speed it was VERY impressive!
Another point I would like to raise is how cheap they are to tune. Get a chip, exhaust and actuator and your instantly running around 280/300bhp. Then change injectors etc and your up around 330/350bhp.
Ill go into a few cosworths here to let you know of standard form.....
Sierra RS 500 - 1987
Stats / Spec's:-
Touring Car Spec which ran 500bhp all day long. This is the specification of Peter maxwells car, which I was told would last 1000 miles before blowing up. He has had his car running at that power for 8 years now and 20,000odd miles and its still as strong as ever, I know i was out in it yesterday
Escort Cosworth
The Cosworth YBT engine was based on the Sierra Sapphire 4WD Cosworth unit.
Bore 90.8 mm stroke 77mm
Compression ratio 8:1
Weber-Marelli electronic fuel and engine management system
Garrett T3/T04 turbocharger factory set at 0.8 bar boost pressure.
Max power 227bhp at 6250 rpm with max torque 220 lb.ft at 3500 rpm.
The engine was mounted longitudinally in the Mark V shell, compared to the MK5 RS2000 which was mounted transversely.
The engine ran on Unleaded Fuel and used a catalytic converter on the exhaust system. This restricted the exhaust system flow considerably. The engines has a green painted cam cover to indicate an Unleaded fuel version.
"The Ford Escort - Most successful rally car in the world"
No matter what the competition, the surface, the conditions, or the nation, the Escort was always successful, at all levels of the sport. Near-standard Group 1 Escorts (this is the 1970s equivalent of today's Group N 'showroom' category) were also often victorious, memorably with three consecutive outright wins in the 1974, 1975 and 1976 Tour of Britain events, which combined racing with rallying.
A new-style Escort, the 1.8-litre RS1800, emerged in 1975, and within months the Boreham-based 'works' team had turned it into a formidable World Championship machine. Its first outright victory came in the 1975 RAC rally, when Timo Makinen completed a personal hat-trick, and the Escort took its fourth straight win. Ford retained the RAC trophy in the following year, 1976, when Roger Clark won for the second time in an Escort - four years after his first RAC triumph.
Roger Clark, Hannu Mikkola and Bjorn Waldegard spearheaded the 'works' team's international charge in the following years. As ever, the Escorts were still the class of the field. Bjorn Waldegard won three of the world's most punishing World Championship rallies in 1977 - the East African Safari, Acropolis and RAC events, and the Swedish in 1978, while Hannu Mikkola also won the RAC rally in 1978.
Throughout this period, drivers used Escorts to win hundreds of events at World, European and National Championship level. One of those Ford rally experts, Gilbert Staepelaere of Belgium, won more events than any other individual driver in Europe. The Ford Escort was also unbeaten in the British Rally Championship for eight consecutive years, from 1971 to 1978.
In 1979 the Ford Escort then made a clean sweep of the World Rally Championship. By the end of the year, the well-developed and versatile RS1800s had won five World Championship rounds, in Portugal, Greece (Acropolis), New Zealand, Canada and the UK (RAC) - the RAC being won for the eighth consecutive occasion.
Not only did Ford win the World Manufacturers' Championship in 1979 - for the third time in twelve years - but Bjorn Waldegard also became World Drivers' Champion, with team-mate Hannu Mikkola close behind him.
As the 'works' team concentrated on developing new models for the 1980s, another member of that famous team, Ari Vatanen, spearheaded a privately-financed Escort rally team which contested the World Rally Championship in 1980 and 1981. After winning the Acropolis rally in 1980, Ari went on to win three more World Championship events in 1981, and became the first, and only, privateer ever to win the World Drivers' Championship.
At the same time the production Escort range went front-wheel-drive and was clearly never going to be competitive at a world level and with the introduction of Group B all the 'works' effort went into the four-wheel-drive RS200s followed later by the Sierra RS Cosworth, but the Escort was never forgotten.
In 1993 a new-generation of Escorts triumphantly returned to International rallying. In its very first World Championship season, the turbocharged four-wheel-drive Escort RS Cosworth won no fewer than five World Championship rounds, with four second places to back up that achievement. It was an amazingly versatile machine, for there were victories on Portuguese gravel, on the twisting tarmac of Corsica and San Remo, and on one of the toughest of all World Championship rallies, the hot and dusty Acropolis event.
In 1994 Francois Delecour's Escort RS Cosworth won the Monte Carlo Rally, while Tommi Makinen's victory in the 1000 Lakes proved the strength of the modern-day Escort. As in 1993, this success was matched by many victories in European, British and other International Championships.
In 1995, the Escort RS Cosworth won rallies all around the world, both in Group A and Group N form. Not only did this Escort model win 25 European Championship rounds, but it also won Championships as far apart as Africa and Austria, Switzerland and Portugal, Finland and Turkey.
Two more World Rally Championship victories followed in 1996. A privately-prepared Escort RS Cosworth, driven by private-owner Patrick Bernardini, won the Monte Carlo rally, while Carlos Sainz won the Rally of Indonesia.
To suit the latest World rally regulations for 1997, Ford then evolved a new version of the Escort, the World Rally Car. This 300 bhp turbocharged model won two World Championship rounds, one being the toughest of all rallies, the Greek Acropolis: both wins went to double World Champion Carlos Sainz, who had joined the team in 1996. In a desperately hard-fought series, the Escort WRC also took second place in the World Rally Championship for Makes.
Further improved for world-class motorsport, the Escort WRC was used by the Ford 'works' team and many private teams during 1998, and recorded several podium positions during the season. Even at the end of its career, and as in every one of the previous 30 years, the Escort was still one of the world's most formidable rally cars.
The Ford Escort, in its many forms, has won 46 world-class and World Championship rallies, and innumerable national and International series - privately-owned Escorts continue to record victory after victory, and will surely add fresh entries into the record-books in the months, and years, to come.
Stroked from RSOC!
So there you go a little bit of background information on Cosworths.
Right I dont want this to turn into a slagging match etc etc... I would just like to set a few things straight.
Alot of people say Cosworth and Ford in general are unreliable. They are as reliable as any other car manufacturer. You have to remember with the likes of the cosworth engine most people compare it to the likes of an Evo or Subaru both of which have at least 10years advancement over the cosworth engine. It was originally developed back in 1981 - Thats 24 Years worth of technology that the Subaru/Evo has over the Cosworth.
"The 16v 1993cc engine easily produced 204 bhp for road use with the help of Garrett T.03b turbocharger and Weber-Marelli fuel injection
the Sierra RS Cosworth reached a top speed of 149 mph"
Now remember for a car released in 1986 having produced 204bhp and 150mph top speed it was VERY impressive!
Another point I would like to raise is how cheap they are to tune. Get a chip, exhaust and actuator and your instantly running around 280/300bhp. Then change injectors etc and your up around 330/350bhp.
Ill go into a few cosworths here to let you know of standard form.....
Sierra RS 500 - 1987
Stats / Spec's:-
- Original cost : £19950
- produced: 1987
- Homologation : 1987 500 off
- Engine : 1993cc 16v Twin OHC Ford Cosworth YBD, Stronger cylinder block.
- Garrett T4 turbocharger.
- Larger intercooler.
- Second fuel injection rail (Extra 4 injectors were fitted, but weren't functioning in road trim). 8 in total.
- Power : 224bhp @ 6000rpm
- Modified rear suspension mounting points with alternative pick-up points for trailing arms.
- 15 x 7 Alloy wheels
- Fog lamps removed & replace with brake cooling ducts, some owners opted to has fog lamps fitted.
- Revised Front bumper for better air flow into the engine bay.
- Finish : 392 Black, 56 in White including 4 Prototypes & 52 in Moonstone Blue.
Touring Car Spec which ran 500bhp all day long. This is the specification of Peter maxwells car, which I was told would last 1000 miles before blowing up. He has had his car running at that power for 8 years now and 20,000odd miles and its still as strong as ever, I know i was out in it yesterday
Escort Cosworth
Engine
The Cosworth YBT engine was based on the Sierra Sapphire 4WD Cosworth unit.
Bore 90.8 mm stroke 77mm
Compression ratio 8:1
Weber-Marelli electronic fuel and engine management system
Garrett T3/T04 turbocharger factory set at 0.8 bar boost pressure.
Max power 227bhp at 6250 rpm with max torque 220 lb.ft at 3500 rpm.
The engine was mounted longitudinally in the Mark V shell, compared to the MK5 RS2000 which was mounted transversely.
The engine ran on Unleaded Fuel and used a catalytic converter on the exhaust system. This restricted the exhaust system flow considerably. The engines has a green painted cam cover to indicate an Unleaded fuel version.
Martin's latest evolution of his legendary Reyland Escort Cosworth, features a newly spec'd, built and mapped engine, featuring a new turbo, block, inlet etc. The results of the mapping session, performed at SCS by Harvey Gibbs and engine mapping guru Ahmed Bayjoo, was 584BHP/580lb-ft torque. What's more, when tested and mapped for 102 RON Race Fuel, he achieved 627BHP/595lb-ft torque.
"The Ford Escort - Most successful rally car in the world"
No matter what the competition, the surface, the conditions, or the nation, the Escort was always successful, at all levels of the sport. Near-standard Group 1 Escorts (this is the 1970s equivalent of today's Group N 'showroom' category) were also often victorious, memorably with three consecutive outright wins in the 1974, 1975 and 1976 Tour of Britain events, which combined racing with rallying.
A new-style Escort, the 1.8-litre RS1800, emerged in 1975, and within months the Boreham-based 'works' team had turned it into a formidable World Championship machine. Its first outright victory came in the 1975 RAC rally, when Timo Makinen completed a personal hat-trick, and the Escort took its fourth straight win. Ford retained the RAC trophy in the following year, 1976, when Roger Clark won for the second time in an Escort - four years after his first RAC triumph.
Roger Clark, Hannu Mikkola and Bjorn Waldegard spearheaded the 'works' team's international charge in the following years. As ever, the Escorts were still the class of the field. Bjorn Waldegard won three of the world's most punishing World Championship rallies in 1977 - the East African Safari, Acropolis and RAC events, and the Swedish in 1978, while Hannu Mikkola also won the RAC rally in 1978.
Throughout this period, drivers used Escorts to win hundreds of events at World, European and National Championship level. One of those Ford rally experts, Gilbert Staepelaere of Belgium, won more events than any other individual driver in Europe. The Ford Escort was also unbeaten in the British Rally Championship for eight consecutive years, from 1971 to 1978.
In 1979 the Ford Escort then made a clean sweep of the World Rally Championship. By the end of the year, the well-developed and versatile RS1800s had won five World Championship rounds, in Portugal, Greece (Acropolis), New Zealand, Canada and the UK (RAC) - the RAC being won for the eighth consecutive occasion.
Not only did Ford win the World Manufacturers' Championship in 1979 - for the third time in twelve years - but Bjorn Waldegard also became World Drivers' Champion, with team-mate Hannu Mikkola close behind him.
As the 'works' team concentrated on developing new models for the 1980s, another member of that famous team, Ari Vatanen, spearheaded a privately-financed Escort rally team which contested the World Rally Championship in 1980 and 1981. After winning the Acropolis rally in 1980, Ari went on to win three more World Championship events in 1981, and became the first, and only, privateer ever to win the World Drivers' Championship.
At the same time the production Escort range went front-wheel-drive and was clearly never going to be competitive at a world level and with the introduction of Group B all the 'works' effort went into the four-wheel-drive RS200s followed later by the Sierra RS Cosworth, but the Escort was never forgotten.
In 1993 a new-generation of Escorts triumphantly returned to International rallying. In its very first World Championship season, the turbocharged four-wheel-drive Escort RS Cosworth won no fewer than five World Championship rounds, with four second places to back up that achievement. It was an amazingly versatile machine, for there were victories on Portuguese gravel, on the twisting tarmac of Corsica and San Remo, and on one of the toughest of all World Championship rallies, the hot and dusty Acropolis event.
In 1994 Francois Delecour's Escort RS Cosworth won the Monte Carlo Rally, while Tommi Makinen's victory in the 1000 Lakes proved the strength of the modern-day Escort. As in 1993, this success was matched by many victories in European, British and other International Championships.
In 1995, the Escort RS Cosworth won rallies all around the world, both in Group A and Group N form. Not only did this Escort model win 25 European Championship rounds, but it also won Championships as far apart as Africa and Austria, Switzerland and Portugal, Finland and Turkey.
Two more World Rally Championship victories followed in 1996. A privately-prepared Escort RS Cosworth, driven by private-owner Patrick Bernardini, won the Monte Carlo rally, while Carlos Sainz won the Rally of Indonesia.
To suit the latest World rally regulations for 1997, Ford then evolved a new version of the Escort, the World Rally Car. This 300 bhp turbocharged model won two World Championship rounds, one being the toughest of all rallies, the Greek Acropolis: both wins went to double World Champion Carlos Sainz, who had joined the team in 1996. In a desperately hard-fought series, the Escort WRC also took second place in the World Rally Championship for Makes.
Further improved for world-class motorsport, the Escort WRC was used by the Ford 'works' team and many private teams during 1998, and recorded several podium positions during the season. Even at the end of its career, and as in every one of the previous 30 years, the Escort was still one of the world's most formidable rally cars.
The Ford Escort, in its many forms, has won 46 world-class and World Championship rallies, and innumerable national and International series - privately-owned Escorts continue to record victory after victory, and will surely add fresh entries into the record-books in the months, and years, to come.
Stroked from RSOC!
So there you go a little bit of background information on Cosworths.