<< Am I missing something here, isn't the oil pump geared to one third e-shaft

 > speed ?

 > John >>

The pump has a 31 tooth sprocket and the shaft has a 23 tooth sprocket.

Lynn E. Hanover

Francois Badoux wrote:

No, sorry Lynn, on our engine, the pump has a 36 tooth sprocket and the shaft a 24 tooth sprocket.

Francois

Which would slow your pump even more making cavitation even less likely.

24/36 = .66 e-shaft speed verses 31/23 = .74 e-shaft speed. If what you say is true
Francois it would be a major breakthrough in Mazda rotary engines because it would
allow a drastic increase in the 10,000 RPM redline allowing more power to be generated.
The red line of the engine now is based on a combination of high oil pressure
and rotor weight.

Paul Lamar

Paul,
Check the Service Highlights Manula for the FD when it was introduced. That aspect is covered therin. Guess it was done for the twin turbo for a reason. Racing?
Marc

Don't have a copy. Can you scan it in?

Paul Lamar
 
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