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  1. Path: sparky!uunet!pipex!bnr.co.uk!uknet!axion!pharaoh!ian
  2. From: ian@pharaoh.cyborg.bt.co.uk (Speed Freak)
  3. Newsgroups: alt.autos.rod-n-custom
  4. Subject: Re: Horsepower calculations?
  5. Keywords: horsepower
  6. Message-ID: <7694@pharaoh.cyborg.bt.co.uk>
  7. Date: 21 Dec 92 10:46:42 GMT
  8. References: <92343.162029DAB134@psuvm.psu.edu> <1992Dec9.162710.3364@hellgate.utah.edu> <1992Dec10.112853.11373@hellgate.utah.edu> <7583@pharaoh.cyborg.bt.co.uk> <15DEC199221093724@lims02.lerc.nasa.gov>
  9. Organization: large
  10. Lines: 16
  11.  
  12. xxkozak@lims02.lerc.nasa.gov (GEORGE KOZAK) writes:
  13. >                                 3
  14. >                 HP = 200 (WT/ET  )         (WT divided by ET cubed)
  15.  
  16. >     Where WT = total weight of car, driver, etc. in pounds.
  17. >           ET = 1/4 mile Elapsed Time in seconds.
  18.  
  19. I tried this equation out with some road test figures, and with 1/4 mile
  20. times obtained by me and my friends.  The results were usually very accurate.
  21. The only car it failed for was the Sierra Cosworth.  This car has 204bhp,
  22. weighs about 3000lbs with 2 passengers and can do a 1/4 in 14.5.  Perhaps
  23. it is faster than expected because of the torque from the turbo ?
  24.  
  25. Ian.
  26. -- 
  27. Ian Crocker                     ian@cyborg.bt.co.uk
  28.