algorithms

[Bruce Bowling]

~ 
~ > 
~ > Engine Analyzer is a "software dyno" and is available from Summit Racing.
~ > You enter all the parameters for your engine (bore, stroke, intake valve
~ > size, cam advance, etc.) and it calculates the performance of the engine.
~ > By changing some parameters you can see what would have if you made a
~ > change to the engine. I am fairly impressed with Engine Analyzer (about $90),
~ > but if you want to go whole hog there is a Pro version for about $450.
~ > 

The above programs are empirically-based, which will yield ballpark
numbers and somewhat useful relative numbers for change evaluation.
But everyone I have talked with indicates that they do not check
accurately against dyno runs, to yield more real-world results require
air-flow simulations which take many hours to compute (on a Cray).  

- Bruce
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               Bruce A. Bowling
  Staff Scientist - Instrumentation and Controls
 The Continuous Electron Beam Accelerator Facility
    12000 Jefferson Ave - Newport News, VA 23602
                 (804) 249-7240
                bowling at cebaf.gov  
        http://devserve.cebaf.gov/~bowling
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