close

Privacy guaranteed - Your email is not shared with anyone.

I need an Excel expert , for a 3 move math formula

Discussion in 'Tech Talk' started by glooooock, Feb 24, 2006.

  1. glooooock

    glooooock Tall Member

    Joined:
    Nov 18, 2005
    Messages:
    405
    Likes Received:
    0
    Location:
    southern Kalifornia / NRA 15 yrs
    I have a 3 move power chart for an engine ,you compare a torque reading ( Off a gauge ), with a temp and baro. pressure input correction , to compare it with a chart of exhaust gas temp of a Spec. engine ( what a normal new stock engine would produce ).

    I have it on a laminated card , one side column , a page of 400 numbers ,with same on the back side. Its the same as a diver chart if you have ever scuba dived.

    I would like to refine the interpolation , from - its like 257 - 262.
    Any ideas or links would be nice.
     
  2. Furant

    Furant Millennium Member

    Joined:
    Oct 14, 1999
    Messages:
    441
    Likes Received:
    0
    Location:
    Roswell, GA
    I'm a NAUI diver, but I'm not clear on what exactly your chart looks like.

    For instance:
    You know the torque (y-axis?), you adjust for T and P (x-axis? atmospheric?) and then drill down to the intersection of the two? (I'm guessing it's a table, not a curve). And you want to interpolate for more specific inputs?

    Not sure I'll be able to help, but I'll give it a try. Perhaps you can take a picture of the chart and post it or point me to an example of the chart on the web somewhere.
     

  3. glooooock

    glooooock Tall Member

    Joined:
    Nov 18, 2005
    Messages:
    405
    Likes Received:
    0
    Location:
    southern Kalifornia / NRA 15 yrs
    Yeah , Table one X & Y torque VS Baro. pressure = result , page two ,,, X & Y table ,,result VS atom. temp = Spec. engine exhaust gas temp.

    Trying to reduce the cumulative errors , jumps of 150 -156 -162 .
    I just wondered if it could be done on Excel