Mazda RX-8

 
 

 

Pictured above; The Mazda RX-8

 
 
 
 

The Mazda RX-8 is quite an unique sports car. It is rotary engine powered seats four and has four doors, two of which open backwards.

The RX-8s design started life as the RX-evolve concept car when Mazda designers decided to make a more practical sports car design. First seen at the 1999 Tokyo motor show it received great interest from from the public and this is when the RX-8 was born. With the exception of a few cosmetic changes to the lighting and interior arrangement you could be forgiven for mistaking the RX-8 for the RX-evolve concept car.

The RX-8 was launched in 2003 and took over from the RX-7, which ceased production in 2002, as Mazda's premium sports car. The big differences with the RX-8 from any other sports car are its four doors and Wankel rotary engine.

The RX-8 uses a four door layout in a style that Mazda calls Freestyle Doors. The Rear doors of the RX-8 are hinged at the back thus opening backwards, this allows a greater entry area into the back seat as there is now centre pillar. With both doors open the opening to the car is quite large indeed and to stop the rear door being opened while in transit it feature a combined outer/inner handle located in the door trim that prevents opening of a rear door unless its corresponding front door is also open.

The engine in the RX-8 is an all new design Mazda call the Renisis. The Renesis twin rotor rotary engine is light weight and small when compared to an engine of similar power in its competitors cars. The beauty of this
small size allows Mazda to place the engine far back in the engine bay and achieve a better weight distribution throughout the car, this not only makes the RX-8 handle great on the road but also help gives it its unique
appearance.

The 645cc Renisis engine helps speed the RX-8 along to 100km in 6.2 seconds, with the 6 speed manual power output is around 177kw at 8200rpm. The rotary engine differs from the 13b rotary used in the RX-7 by using side mounted intake and exhaust ports. The advantage of the new layout is that it allows elimination of intake/ exhaust port timing overlap which caused instability when exhaust gas was retained and carried over to the next intake cycle.

The RX-8 is a great looking car that proves how good Felix Wankel's rotary engine is. Sales of the RX-8 have exceeded expectation and production at the Renisis plant is at full capacity. Mazda are looking at launching a
all new RX-7 in a few years, if this goes ahead Mazda will have to expand their rotary engine factory, and many rotary enthusiasts are hoping this would be the catalyst to see the rotary find it way in to other Mazda models.
 

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Did You Know?

The Transistor invented in 1948 by J. Bardeen, W. Shockley and W. Brattain was invented by accident. They were experimenting with a diode when they discovered their creation.

 

 

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