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Mazda RENESIS Wins International Engine of the Year 2003
Submitted by SuperUser on Tuesday, June 3, 2003 - 8:22pm

Mazda's new-generation rotary engine, "RENESIS," which powers Mazda's all-new RX-8 sports car, has been named "International Engine of the Year 2003."

Established in 1999, the International Engine of the Year Awards are hosted by Engine Technology International every year with the winner selected by a majority vote of 50 motoring journalists from 22 countries around the world. Engines are evaluated based on the criteria of drivability, performance, economy, refinement, and the successful application of advanced engine technology. There are a total of eight awards for the eight capacity classes of all current production engines between sub 1-litre to above 4-litre capacities, and three special awards of "Best New Engine of 2003," "Best Fuel Economy," and "Best Performance Engine." The "International Engine of the Year" is selected from among the winners of the eight engine capacity classes. With an impressive 44 out of 50 votes, the RENESIS clearly outshone this year's competition to claim the honor of "International Engine of the Year." In addition, Mazda's new-generation rotary engine also won the "2.5-litre to 3-litre" Capacity Class Award and "Best New Engine of 2003."

Nobuhiro Hayama, executive officer and general manager of the Powertrain Development Division said, "Mazda firmly believes in the virtues of the rotary engine and we have spent many years developing rotary technologies. This award recognizes the significant technical innovation achieved through the ingenuity and enthusiasm of our engineers after overcoming many challenges. We will continue to pursue developments in engineering to further advance the rotary engine's potential."

The rotary engine performs the four processes of intake, compression, combustion, and exhaust in succession by turning a triangular-shaped rotor in the cocoon-shaped combustion chamber to generate power. In comparison with the reciprocating engine, it excels in features such as "compact size and light weight," "flat torque performance," and "less vibration and low noise." Through the introduction of innovative technologies for the rotary engine such as the use of "side-exhaust and side-intake ports" and the new sequential dynamic air intake system, the RENESIS delivers a high power output for a naturally aspirated engine. In addition, the engine demonstrates significantly improved fuel economy and reduced emissions when compared with previous rotaries.

Mazda has developed and introduced a series of insightful cars, such as the Cosmo Sports in 1967 and successive RX-7s, utilizing the intrinsic technical benefits of the rotary engine. The development of the RENESIS, from design to production, represents the sum of its extensive experience with rotary engine technologies. The company has created a new page in rotary history with this innovative engine designed specifically to power the four-door four-seater Mazda RX-8, a totally new concept in sports car design.

The award ceremony will be held on June 4 in Stuttgart, Germany.

Outline of RENESIS engine (for Mazda RX-8 Type S/Japanese specifications)

-Type: Rotary engine, two-rotor, water-cooled
-Total Displacement: 0.654L x 2
-Maximum Output (JIS net): 184kW (250PS)/8,500rpm
-Maximum Torque (JIS net): 216N·m (22.0kg-m)/5,500rpm

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subject:
No title supplied
author:
No Rotor
date:
December 31, 1969 - 4:00pm
Felix Wankel, pioneer of the rotary engine, Kenichi Yamamoto, the first head of Mazda’s RE (Rotary Engine) Research Department in 1963, and Nobuhiro Hayama, today’s general manager of Mazda global powertrain activities: the names are synonymous with rotary engines and, now, the International Engine of the Year 2003, the RENESIS Rotary.

The achievement is against all the odds: rotary engines had been dismissed by many – including Europe’s emission legislators, who banished Mazda’s last Wankel, the 13B-REW, from its markets in the last decade – as too inefficient, too polluting.

However, the Japanese car maker has bounced back in tremendous style, the 2003 RENESIS gathering 316 points, some 72 more than the second-placed Volkswagen. Indeed, 44 of the panel of 50 judges voted for the RENESIS to take the most prestigious Awards title – a massive endorsement of Mazda’s efforts with this unconventional engine.

The starting point for RENESIS’ – appropriately, it stands for ‘RE (rotary engine’s) GENESIS’ – rise to glory was the Multi-Side-Port rotary Engine, or MSP-E. This unit was introduced in the RX-01 concept at the Tokyo Motor Show in 1995. It was then presented in a refined version at the 1999 Tokyo Motor Show in the RX-EVOLV four-door sports car concept, forerunner
to the eye-catching RX-8 that it now powers.

Naturally aspirated and available with two power outputs (192bhp or 240bhp), the rotary impressed the judges with its silky smooth power delivery, incredible refinement and willingness to rev so freely.

Perhaps winning the International Engine of the Year 2003 title will see Mazda invest further in rotary engines (for now, some 60,000 a year will be made at Mazda’s Hiroshima factory). That RENESIS already meets the forthcoming 2005 EURO 4 emissions standards proves that Mazda’s brilliant adoption of Felix Wankel’s concept has a very promising future.


RESULTS POINTS
Mazda RENESIS Rotary (RX-8) 316
Volkswagen Diesel 5-litre V10 (Touareg/Phaeton) 244
BMW 3.2-litre (M3) 224
Honda 1.3-litre IMA (Civic Hybrid) 157
Honda 2-litre (S2000) 107
BMW 2.5-litre (325i, 525i, Z4) 77
MINI Supercharged 1.6-litre(Cooper S) 76
Honda 1-litre IMA (Insight) 49
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subject:
No title supplied
author:
No Rotor
date:
December 31, 1969 - 4:00pm
It's nice to see that such an organization gave the RENESIS well-deserved recognition. I would love to see the rotary engine all across Mazda's product line. Go Mazda!!
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subject:
No title supplied
author:
No Rotor
date:
December 31, 1969 - 4:00pm
Umm, can someone explain to me why the Renesis won the "2.5 to 3 litre capacity" award when it's actual displacement is half that? Shouldn't it have been placed in the class with other engines between one and two liters?
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subject:
New article
author:
No Rotor
date:
December 31, 1969 - 4:00pm
We hope to soon have an article about this various topic, the confusion between 1.3L and 2.6L designation of the Rotary.
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subject:
eccentric shaft
author:
No Rotor
date:
December 31, 1969 - 4:00pm
Thank god for this site! I especially love the posible Rx3 rumor.I got lots to say, but not now. I also love the rotary pickup article!
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subject:
local nutcase
author:
No Rotor
date:
December 31, 1969 - 4:00pm
The 1.3 ltr rotary's horsepower level is high enough that here in Japan, it is classified in the same bracket for road taxs, and licensing ?? maybe that helps? Some times they base of flywheel HP more than CC, or CID.
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