Mazda to introduce a more fuel-efficient engine by 2011

Mazda will be coming out with a range of fuel-efficient vehicles in 2011. The Japanese manufacturer aims to improve fuel efficiency across its product lineup by as much as 30% by 2015. Mazda is reportedly focusing on four-cylinder and rotary engines.

However, Mazda has not revealed which models would be powered by improved powertrains. While previous reports speculate that the redesigned MX-5 convertible and Mazda5 will receive the greener engine, Seita Kanai, head of Mazda Motor Corp.’s R&D division, counters that the entire range would be provided new engines by 2015.
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tango - 8/21/2009 11:57:38 PM

+4 Boost

The rotary engine is inherently prone to high fuel consumption. It doesn't build a lot of torque, so that means it has to be revved a lot harder to get anything done. That means fuel consumption. Unless they plan to use turbo and supercharging to improve low-end torque then there's not much that I see that can be done.

ceric - 8/22/2009 12:53:08 AM

-1 Boost

Rotary + turbo is common.
All Mazda rotary engines are turbo-charged.

rxh8me9000 - 8/22/2009 3:03:42 AM

+5 Boost

...my rx-8 isnt turbo charged...yet

DinamoR - 8/22/2009 1:26:52 AM

0 Boost

30% by 2015? HA! And I love the title: "a more fuel efficient engine by 2011". As if that is not what every company is doing all the time.

By 2015 I'll be looking at cars like Tesla Model S. I won't buy a new car with an ICE engine after 2015 anymore. Effects of peak oil will start hitting us in our faces right around 2015.

veyron1001 - 8/24/2009 1:16:38 PM

+1 Boost

yea the person in the rotary will be driving by as you are stuck at the eco fag electric charging station with all the other eco fags.

rxh8me9000 - 8/22/2009 3:10:28 AM

+2 Boost

Honestly if they dropped a rotary with 300hp in a new rx car i wouldnt care about mpg. The renesis motor is leaps ahead of my FD rx-7.Smoother,better mpg,more balanced,quieter etc. A turbo and some fine tuning will help the rotary a lot,but theres issues of heat and reliability with seals etc.I get maybe 13-15 mpg in my car and i have no catalytic converter.When i had a cat i was getting a lot more. Other than that,the motor got flooded once cuz im stupid. (never start a rotary motor and turn it off without warming it up)Mazda came out with a ECU flash and took care of that though. I cant wait to see how much better the next rotary is.

Joe_Limon - 8/22/2009 12:40:21 PM

+2 Boost

To make the rotary efficient mazda is planning on a dual stage direct injection fuel delivery system. A couple months ago I read that they were playing around with injector placement to optimize efficiency and emissions.