ROTARY FUEL CONSUPTION

Discussion in '2002 Mazda RX-7 Spirit R' started by 180 sx burn off e types and m3 bmw, May 16, 2003.

  1. some say its good some say its bad......

    WHICH ONE IS THE TRUTH????????
     
  2. Re: ROTARY FUEL CONSUPTION




    I hear the Rotary engines do not get good gas mileage. That sucks considering I like the RX-7 alot.
     
  3. Re: ROTARY FUEL CONSUPTION

    My rotor has good fuel consumption not consuption you dumb arse.
    That's spelt A.R.S.E not A.S.S. I know backside from a Donkey. Anyway it doesn't matter I get 14 litres to every one hundred kilometres not in miles and gallons. I am Australian and Proud that why I drive Japanese car made from Australian steel and some aluminium.
     
  4. Re: ROTARY FUEL CONSUPTION

    its got a pretty bad fuel consumption for a 1.3L but then again it is a rotary and its turbocharged.
     
  5. Re: ROTARY FUEL CONSUPTION

    Yeah I wish my Rotor was as fuel consumption was as good as a dutsun.
     
  6. Re: ROTARY FUEL CONSUPTION

    your a jerk.....
     
  7. Re: ROTARY FUEL CONSUPTION

    You’re a Tool. I can believe you got banned as Nissan Rules because such moronic posts. I was just saying that I wish my car had good fuel consumption.
     
  8. Re: ROTARY FUEL CONSUPTION

    Dude, dont start stuff like that, I know you dont wanna get banned again
     
  9. Re: ROTARY FUEL CONSUPTION

    The RX-8 gets 20 mpg.
     
  10. Re: ROTARY FUEL CONSUPTION

    the rotary engine was never meant to be fuel efficient and mazda never said that is was.
     
  11. If the Rotary was fuel efficient then it would probably be in most of their vehicles.
     
  12. There's a reason why the 13B-REW engine in the RX-7s get poor gas mileage. It has to do with the intake and exhaust ports, and the placement of the exhaust port. When the rotor is making its rotation within the housing, there is a moment when both ports are are open at the same time. This means that ther is exhaust gases getting into the air/fuel mixture. When this happens, it is rather difficult to ignite. To remedy this problem, Mazda increased the fuel pressure and/or injector duty, creating a rich air/fuel mixture. At the time, this was the only solution that Mazda R&D had. Since more fuel is being dumped, more fuel is being wasted. Result = Poor MPG <A BORDER="0" HREF="http://www.supercars.net/emoticons.html"><IMG BORDER="0" SRC="http://speed.supercars.net/pitlane/emoticons/sad.gif"></A> Thankfully, the 13B Renesis engine (RX-8) doesn't have as bad of gas mileage. The exhaust port has been relocated to the sidewall of the engine. Exhaust gases no longer get into the fresh air/fuel mixture. Injector duty is decreased, ignition timing is advanced, the compression ratio has been increased, and the power output has risen (when compared to a non-turbo version). There you go!
     

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