Hello, I am Michal from Europe, Slovakia. I have RX 7 FB from 1982.
   Ports are stock. I have a WEBER 40 DCOE carb and I want to use this
   for road-race, but hobby use. This carb is good for it? And if yes,
   do you help me with jetting ?

   Thank you very much
   Michal Dibala

   It will run on it.

   Power will be modest.

   People usually use the 48 mm down draft weber.
   I don't know anybody that can help you with that size weber.
   I suggest you get a wide band mixture monitor to help you
   tune it.

   Paul Lamar


For road race use it is best to read Paul´s web for the information on how to p-port the rotor
housings and make a manifold for the Weber. Sell the 40 DCOE and buy a 48. I corner
marshalled for years in Edmonton, Alberta , Canada. Club racers would play with jetting during
practice sessions and sometimes got it wrong. We heard it as a flutter in the engine, lean I believe.
A few laps to get it warmed up will not hurt as long as you change jetting if flutter or poor
acceleration occurs. Rich shows up as dark or black plugs.
At Edmonton International Raceway we had club racing to pro series; Formula Vee to Group Seven
sports cars including Formula Atlantic, F5000 and Trans-Am.  Great times.

Dale Davies



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