Toyota CELICA WRC 1994 - 1997 mit WAES
|
Better traction makes the car more stable. The amount of down-force is influenced by the right height but wind tunnel tests proved a downforce of 50 kg at 100kph with the wing in its high position.
The pickup point for the suspension arms are different and instead of mounting them directly to the bodyshell there is now an additional sub-frame which is part of the new design of the chassis.
The Toyota Celica GT-Four (ST-205) now has 16-inch wheels as standard. There are two reasons for this: it allows for bigger brakes in Group N, which is very important and it means that, in Group A-spec, the car can go to 18-inch wheels for tarmac events.
After an extensive test programme the Toyota Celica GT-Four made its World Championship debut in the second half of the 1994 season.
Within the factory team, this successful car is replaced by the Toyota Corolla WRC in the latter half of 1997, but it will still run as a serious contender in various championships by private teams all over the world, and for many years to come.
 The Toyota team was promised to success up to the Catalunya rally in 1995 when an FIA commissioner discovered a weird device in Didier Auriol's Celica ST205.
To limit the horsepower in rally cars the FIA has regulated the use of a turbo restrictor. This is device, resembling a tube, with a regulations specified dimensions fits in the turbocharger's air intake to limit the air flow and consequently the engine's output. Toyota engineers had mounted the restrictor in a way that it would slightly move from its original position, allowing more air into the turbocharger, when the car was running. This of course was prohibited and as a consequence Toyota was excluded from the World Rally Championship. Too bad for their drivers, Juha Kankkunen, Didier Auriol and Armin Schwarz at the time, who declared they knew nothing whatsoever about the presence of such a device in their cars. No one ever found out whether the device came from Toyota Japan or from Toyota Team Europe. Either way each party must have known about its presence.
|
|
|
|
|
|
|
Toyota’s last rally-Celica, the GT-Four (ST-205) appears in the later half of 1994, featuring a new shape body and five special characteristics: better aerodynamics, improved front suspension, 16-inch wheels as standard, a stiffer chassis with more longitudinal members and a water injection for the engine.
The most striking feature about the improved aerodynamics is the high mounted wing which allows more downforce at the rear. Often the engine cooling is more difficult if the drag coefficient is reduced but the engineers were quiet happy with the air inlet openings in the front of the car, resulting in the same cooling efficiency as with the ST-185. To allow air to escape, slightly bigger openings have been cut in the bonnet and there is more space between the water radiator and the engine block. To do this the radiator has been brought more forward which allows for a better airflow inside the engine.
The purpose of the wing is to help compensate the inherent disadvantage of weight balance. The aerofoil has been designed to minimise drag losses while increasing the down-force and it is effective from 100-120 kph upwards (62.1-74.52 mph)
| |
