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The 8/20 PS was a car produced by the high-end car manufacturer German Opel from 1911 to 1916.
At the end of 1910, the 8/16 PS was removed from production. Two years earlier, was removed from the production 12/14 PS with engine 2.1-liter replaced by the 10/18 PS with 2.5-liter engine. It was therefore, no longer a car with an engine of about two liters, which could form the basis of the high end of the range Opel. In addition, it was necessary to prepare a development of 8/16 with 1.9-liter engine just out of production.
For these reasons, in 1911, was introduced 8/20 PS, a car that took over the legacy of the 8/16 PS, constituting an evolution and going to be the new base of high-end Opel. At the same time, the 8/20 PS went to get that place not long before it was occupied by the 12/14 PS.
The role of this car was therefore to propose an evolution of a model and at the same time that part of the refresh range that allowed access to cars richer, without having svenare excessively. Obviously everything was, as always, relative, because even the purchase of a car much lower class was not the preserve of many people.
The 8/20 PS was fitted with a new engine with 4 cylinders in line 2032 cm ³, head with cast iron base alloy and aluminum. As in the vast majority of cars of that period, the distribution was side-valve. The power maximum was 20 hp at 1600 rev / min.
The rest of the mechanics was very traditional and resumed the technical solutions offered by almost all the global car park then.
It was, therefore, used a transmission that used a drive shaft and a clutch cone. The exchange rate was 4 speed, and perhaps this was the most modern solution.
The chassis did not offer anything new and upheld the general architecture of the brakes and suspension : band type on transmission of the first, rigid axle with semi-elliptic leaf springs the latter.
It was interesting, however, the large amount of bodies with which the 8/20 was offered: you could choose between single or double- phaeton, torpedo to 6 people, limousine or even landaulet.
Although the performance was significant for its time: the 8/20 it reached 65 km / h, a value reltivamente good for the time.
At the beginning of 1914, the 8/20 received a decided mechanical intervention: it was increased by the movement of the pistons through the use of longer connecting rods and engine capacity grew so to 2209 cm ³, while maximum power went to 24 hp at 1600 rev / min. The car thus obtained was named 8/22 PS: The performance, however, remained the same. The car was produced until 1916.