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[sinisa93]

Listajuci tako po stranim forumima naletim na stariju besplatnu verziju ovog programa, koji se inace moze kupiti u paketu sa Portmap Analyzer-om. Nisam bas pohvatao sve mogucnosti i funkcije programa, pa se nadam da ce neko od iskusnijih clanova da malo bolje to pojasni. Evo sa njihove stranice, copy paste:

Program features:

• -Calculates port heights from durations, or port durations from port heights
  
• -Assign fixed relationships between transfers and exhaust port. Enables all transfer
  port heights to be calculated automatically by just entering exhaust timing
  
• -Exhaust and main transfer timing can be entered by mouse click on graph, or typed in
  
• -Calculates required ranges of Jennings or Blair angle areas, mean areas and time areas
  
• -Adjustable graph rpm scale: 7k scrollable range, adjustable from 1k to 18k
  
• -Calculates possible ring flutter rpm
  
• -Mean piston speed
  
• -Suggests carburettor size
  
• -Power meter (you input expected bmep value). Switch between PSI & HP, or BAR & kW
  
• -Port design in separate cad window: enter shape values, or drag port cursors
  
• -Limitations on CAD: Single exhaust port, single boost port

I evo link za download:
 Porting Calculator v3.5.7.zip   4.42MB   37 downloads