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Tuesday, August 31, 2010

Mazda RX-8

The 2010 Mazda RX-8 is a nice little powerhouse with an economical price tag. In fact, U.S. News and World Report recently ranked it as 1 of the 5 most economical sports cars for your money. So what about the engine of this beauty? The 2010 Mazda RX-8 has a rotary engine, which the technology is called RENESIS, and it is available as either a 232-hp 6-speed manual or 212-hp 6-speed sport automatic transmission.
The RENESIS rotary engine is the next generation of rotary engine that powered the RX-7, retaining the power of the previous rotary model 13B-REW, holding onto all the power of the RX-7, while increasing fuel economy and reducing emissions, while the rotors weigh about 14% less than the ones used in the engine of the RX-7. The RENESIS engine also has its intake and exhaust ports in the side housings, which allows better heat dissipation and a longer power stroke.
RENESIS also sports a six port induction system, called 6PI. Each rotor uses 3 of the ports, and each also uses a variable intake timing mechanism, which allows it to maximize compression efficiency at both high and low speeds. In addition, the RENESIS has two exhaust ports for each rotor. This allows a massive reduction in exhaust resistance.
Both the automatic and manual models have a 1.3 liter, 2 rotor rotary engine, capable of 159 lb-ft of torque at 5500 rpms and are capable of a displacement of 1308 cc and a compression ratio of 10.0: 1, being sure you'll get a lot of power for your dollar. The fuel economy is improved from the RX-7 as well... this car averages 16 mpg in the city and 22-23 on the freeway (23 for the sport automatic, 22 for the manual transmission).
In conclusion, the engine of an RX-8 is a nice piece of machinery, and if you take care of it, it will take care of you for years to come.

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