Questions answered in the Rotary (Engine) FAQ:

     1.How does a rotary engine work?
     2.What’s a boinger?
     3.Why does a rotary engine make as much power as a boinger twice its size?
     4.Why does a Renesis make so much more power than prior rotaries?
     5.How reliable is a rotary engine?
     6.Is the rotary engine dead?
     7.What do the 10A, 12A, 13B & 20B Mazda engine designations mean?
     8.Why two spark plugs for each rotor?
     9.What spark plugs should I use?
    10.Why does my rotary Mazda have an oil cooler?
    11.What oil should I use?
    12.Should I use synthetic oil?
    13.Do oil brands matter?
    14.How often should I change my rotary engine’s oil?
    15.Should I mix oil in the fuel?
    16.What’s the best fuel for my rotary car?
    17.What gas mileage should a rotary get?
    18.Will removing my thermostat help my rotary run cooler or make more power?
    19.When should I shift?
    20.What is an apex seal?
    21.How do I know if my engine’s apex seals are OK?
    22.What should my engine’s compression be?
    23.What are the differences between earlier & later Mazda rotaries?
    24.What are the differences between 6-Port & 4-Port rotaries?
    25.How do I tell a 12A from a 13B?
    26.What is a thermal reactor?
    27.What’s the best way to test changes I make that affect my car’s power?
    28.What if I switch to a light flywheel?
    29.How do I get the old flywheel off?
    30.How hard is it to stop oil from leaking?
    31.O-rings? What o-rings?
    32.What’s that foamy stuff under the oil fill cap & inside the filler tube?
    33.Why does my engine smoke when I first start it?
    34.Why does my engine smoke when I shift at high RPM?
    35.Why won’t my engine start? What can I do to start it?
    36.Why is my engine locked up, and what do I do about it?
    37.My engine just failed its emissions test. Now what do I do?
    38.What’s the best way to make my rotary car accelerate quicker?
    39.How hard would it be for me to rebuild my rotary?
    40.What is porting all about?
    41.Can I add a turbo to my NA?
    42.Why is rotary exhaust replacement or improvement so expensive?
    43.Why not hollow out the cats?
    44.How do I remove my air pump?
    45.How do I stop the backfiring?
    46.How can I tell if my car has a limited-slip differential?
    47.Where can I race my rotary car?
    48.Corvttes, Mustngs, Firbirds, Camros, Porches & RX7s?
    49.What are the RX-7 "generations"?
    50.Which model RX-7 do I have?
    51.What other regular production cars have had rotary engines?
    52.Why did Mazda stop selling the RX-7 in the US?
    53.How do I subscribe/unsubscribe to the mailing list?
    54.Is there an RX-7 club I can join?
    55.My question’s not on this list. Where do I go from here?

Plus, links to the RX-7 generational FAQ; tech goodies, such as the "Rotary
Parts Interchange" & "replacing 12A with 13B", in "The Garage"; links to
information on upcoming rotary models and rotary history; acronymn dictionary;
instructions for subscribing to mailing lists; links to vendors, like:

        Yaw Power Products
        Sun Auto
        Rotary Performance Online
        Roebuck Mazda
        Racing Beat
        Mazdatrix
        Mazda Auto Recycling

and much more.

The *complete* URL to get to Felix’s is below.
—
Stone is heavy and sand a burden, but provocation by a fool is heavier than both.
                Proverbs 27:3 NKJV

 Team OS/2  ***  Rotary ONLY since 1973

Felix Miata  ***  http://mrmazda.members.atlantic.net/ <- Not just a FAQ