Learn something new every day...

 

Through a little googling I found out there are hotter plugs available for the RX-7. Standard 2nd gen plugs are BUR7EQ leading and BUR9EQ trailing. However these are considered "cold" for highway driving. For street the "hot" plugs are
BUR6EQ leading and BUR8EQ trailing.

 

See the Mazdatrix website.

 

Has anyone run the BUR6EQ/BUR8EQ combination in an airplane? I've run the standard 7/9 combo for years now, except I tried the platinum versions once, hoping for longer life (didn't happen). I expect the hotter plugs may have shorter life, but might do better burning through 100LL deposits?

 

Perry