Rusty, you are probably already aware of this, but if you do fly without a
MAZDA RX-7 thermostat you will loose approx 20% of your cooling
effectiveness if you DON'T block the 1/2" hole

Ed

===>  Understood Ed, but thanks for making sure.  I'm betting that some of
the archived posts from the RX-7 list were from kids that didn't understand
how it worked.  There were a few posts that swore the car ran hotter after
removing the thermostat.  Bet we know why :-)

Rusty