<< As Vance said it has been done. There are half a dozen SAE papers on direct
 injection stratified charge rotary engines.  There is little or no BSFC
advantage
 at full or cruise power levels. Just a lot of expense. In effect the RX8
engine,
 with the side exhaust port, pretty well achieves the same thing as
stratified
 charge by recycling unburned fuel.

 Paul Lamar
  >>

Is there anything on overboosting a gasolene engine with direct injection?

Lynn E. Hanover

What do you mean by over boosting? Sounds like a prescription for detonation.
As opposed to pre ignition. Two different things. Lets define detonation
as an extremely rapid burning of the fuel and pre ignition as the premature 
ignition of the fuel relative to TDC.

Paul Lamar
 
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