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Old 29-05-2006, 12:43 PM   #1
4.9 EF Futura
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Default Dyno calcs worksheet

Guys,

Just a little something I knocked up for *another* site with contributions by other members there... but I thought anyone here who is bored and has a dyno graph at hand might enjoy having a play around. Nothing terribly interesting but may give people a further insight into the way which their particular combination is making its power/ET/MPH.

Basically take your dyno sheet with km/hr plotted against rwkw/rwhp and plug the data in. Enter a few details about tyre size/drivetrain and away you go.

If you enter it as RWHP - don't enter any RWKW amounts. If you enter RWKW amounts, leave the RWHP fields blank...

Happy to take feedback on board - so long as its not to do with drivetrain losses - the "assumption factor" is addressed adequately within the worksheet IMO...

The "dyno dynamics graph helper" is a neat little calculation that will allow you to determine what each line on a dyno dynamics graph represents. i.e. what for each small line across the X-Axis represents (in km/hr) and what each small line on the Y-axis represents (in rwkw or rwhp depending on your operator)....

Basic instructions are included. Tyre circumference will be calculated automatically from width/profile/size info... a few basic gear ratios (ef/el and BA) are provided. Will add more if people can provide the ratios (i.e. EA auto, EA manual etc).

http://www.myfilestash.com/userfiles...s%20Ver3.1.xls

Any questions just ask.

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Old 29-05-2006, 06:12 PM   #2
mcflux
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ÿ  $ ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ   $( ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ  $( ÿ   $( ÿ  $( ÿ  $( ÿ  !$( ÿ  "$( !ÿ  #$( "ÿ  $$( #ÿ  %$( $ÿ  &$ %ÿ  '$ &ÿ  ($ 'ÿ  ) $ (ÿ  *$ )ÿ $ +$ 3þD

(random cell copy/pasted to here)

I think I have an excel compatability issue!

Great idea though.
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