An O-235 or 320 is also spec'd for the Long-EZ, which my bird is a modification of.  My airplane weighs the same and has about the same power as the O-320, more power than the O-235.

I have a 1985 RX-7 13B for power.  I installed it after about 40 hours on a ground test stand.  Never did need any parts for the engine, I did replace my psru with one of Tracy Crooks. My engine was used when I bought it, no rebuild.

I use the stock distributer for spark - never had any SAG.  Have an old Dodge truck 2bbl carb, which I modified for mixture control. I do lust after a RWS EFI setup, as I am comfortable with electronics, but it flys so nice, I leave it alone.

If my engine ever needed any work, I would have to do it, and if it ever needs any parts, then I will have to find them, but so far, almost ten years, over 500 hours, it has not needed either.

I hope that your luck is as good as mine.


George Graham
Sarasota Florida
Mazda RX7 EZ

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