Compression ratio question

[dicer]

Does anyone know what the highest compression ratio that has been tested is? And who or where? Recip or free piston?
And test results in terms of power, efficiency etc.

 

[turbomotor]

Hi Dicer:

The question that came to mind immediately upon reading your question is: single stage or multi-stage? As tbuelna suggests, an engine system with multiple stages of compression may have a very high "compression" ratio.

Were you thinking single stage of compression?

Regards,

Vincent

 

[evelrod]

After watching the video of the land speed attempt, I'm not sure that this technology is transferable to common usage.
They had many aborted runs and starting the thing was a major operation. Not sure that push starting at really high speed is a common occurrence. There was no reference to starting fluids or the engine's CR as it was, in my opinion, just a "puff piece" to push diesel power.

I find the diesel powered road race "prototypes" far more interesting. At least the technology in the Le Mans racers is closer to what could reasonably be expected to filter down to common road usage in our future (hopefully).

Rod

 

[dicer]

Single stage.
Wow outlaw695, my metro could use that.
Must have a good starter on it, and 45 psi more wow. Cool stuff any more info?