Sports cars automakers have ascended the auto industry’s ladder to become some of the most popular and consumer friendly in the whole world.
Us roads are filled with mainly compact sedans and big bulky pick ups, trucks and SUVs. That's what's mainstream right now in the US, your daily commuter for the average person. A car that would go A to B just fine. But younger generations like us prefer cars with a character. Something that will reflect a part of our personality. A machine that is worth remembering for days to come.
Mazda has made some sweet rides and took the rotary engine design very seriously. Here are the
"TOP 5 SWEETEST ROTARY ENGINES "
Us roads are filled with mainly compact sedans and big bulky pick ups, trucks and SUVs. That's what's mainstream right now in the US, your daily commuter for the average person. A car that would go A to B just fine. But younger generations like us prefer cars with a character. Something that will reflect a part of our personality. A machine that is worth remembering for days to come.
Mazda has made some sweet rides and took the rotary engine design very seriously. Here are the
"TOP 5 SWEETEST ROTARY ENGINES "
13B
5st place for 1.3L Wankel engine Renesis
The building block !
The Renesis engine – also 13B-MSP (Multi-Side Port) – which first appeared in production in the 2003 Mazda RX-8, is an evolution of the previous 13B. It was designed to reduce exhaust emission and improve fuel economy, which were two of the most recurrent drawbacks of Wankel rotary engines. It is naturally aspirated, unlike its predecessors from the 13B range, and therefore slightly less powerful.
The Renesis design features two major changes from its predecessors.
First, the exhaust ports are not peripheral but are located on the side of the housing, which eliminates overlap and allows redesign of the intake port area.
Secondly, the rotors are sealed differently through the use of redesigned side seals, low-height apex seals and the addition of a second cut-off ring. Mazda engineers had originally used apex seals identical to the older design of seal. Mazda changed the apex seal design to reduce friction and push the new engine closer to its limits.
These and other innovative technologies allow the Renesis to achieve 49% higher output and reduced fuel consumption and emissions. The Renesis won International Engine of the Year and Best New Engine awards 2003 and also holds the "2.5 to 3 liter" (note that the engine is designated as a 1.3 liter by Mazda) size award for 2003 and 2004, where it is considered a 2.6 L engine, but only for the matter of giving rewards. It only actually displaces 1.3 liters. This is because a 1,3L 2-rotor wankel has the same number of/equivalent power cycles in one rotation as that of a 2.6L 4-cylinder piston engine.The Renesis has also been adapted for a dual-fuel use, allowing it to run on gasoline or hydrogen.
The Renesis design features two major changes from its predecessors.
First, the exhaust ports are not peripheral but are located on the side of the housing, which eliminates overlap and allows redesign of the intake port area.
Secondly, the rotors are sealed differently through the use of redesigned side seals, low-height apex seals and the addition of a second cut-off ring. Mazda engineers had originally used apex seals identical to the older design of seal. Mazda changed the apex seal design to reduce friction and push the new engine closer to its limits.
These and other innovative technologies allow the Renesis to achieve 49% higher output and reduced fuel consumption and emissions. The Renesis won International Engine of the Year and Best New Engine awards 2003 and also holds the "2.5 to 3 liter" (note that the engine is designated as a 1.3 liter by Mazda) size award for 2003 and 2004, where it is considered a 2.6 L engine, but only for the matter of giving rewards. It only actually displaces 1.3 liters. This is because a 1,3L 2-rotor wankel has the same number of/equivalent power cycles in one rotation as that of a 2.6L 4-cylinder piston engine.The Renesis has also been adapted for a dual-fuel use, allowing it to run on gasoline or hydrogen.
And of course, it was on the Ward's 10 Best Engines list for 2004 and 2005.
Sources : wikipedia
