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I tried to cipher this math problem in my head

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    #16
    Originally posted by highspeed View Post
    Turn the 70mph into time it takes to get to 43 miles and from there, it can be converted to RPM.
    Revolutions
    Per
    Minute

    is always a speed measurement and there is no engine on the planet that can do 1,000,000 revolutions per minute.

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      #17
      I’m coming up with 5 1/2 and 152. Oh hold on, what was the question?

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        #18
        My bet is it will fail well before reaching 1 million RPM

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          #19
          Burt Reynolds died.

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            #20
            Originally posted by adam_p View Post
            Revolutions
            Per
            Minute

            is always a speed measurement and there is no engine on the planet that can do 1,000,000 revolutions per minute.
            The engine fails after it has turned 1,000,000 RPM's

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              #21
              Originally posted by Muskles View Post
              Can you show your work? I came up with brown.
              43mph/3000rpm=X
              (X-80mph) x 1,000,000rpm = Purple


              There ya go.

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                #22
                Originally posted by highspeed View Post
                Turn the 70mph into time it takes to get to 43 miles and from there, it can be converted to RPM.
                out of those, all you need is rpm. Miles comes into play for revolutions per trip.

                but also tire diameter, rear end gear ratio, cruise gear ratio of transmission, you'd also need time in lower gears and their ratio.

                But a tachometer takes care of that.

                PB just think about deer hunting, watch odometer and make decision from there.

                Somebody is lowballing engine failure. At 1700 rpm you'll have 102000 revolutions per hour.
                Last edited by hpdrifter; 10-14-2021, 12:50 PM.

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                  #23
                  This is absolutely dead simple... 278.

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                    #24
                    Originally posted by Goldeneagle View Post
                    Purple!
                    Originally posted by Muskles View Post
                    Can you show your work? I came up with brown.
                    If my calculations are right (pythagorean theorem) you are both correct.

                    Purple=70mph
                    Brown=80mph

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                      #25
                      Originally posted by highspeed View Post
                      The engine fails after it has turned 1,000,000 RPM's
                      No kidding?

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                        #26
                        12.9 Trips @ 70 MPH so it'll fail on the way to work
                        11.9 Trips @ 80 MPH so it'll fail on the way home

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                          #27
                          One closer to 10,000

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                            #28
                            Originally posted by highspeed View Post
                            The engine fails after it has turned 1,000,000 RPM's
                            Then it will never fail because it will never turn 1,000,000 in a minute.

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                              #29
                              43 miles / 70 MPH = 0.614 hours per trip
                              0.614 * 60 minutes = 36.857 minutes per trip
                              36.857 * 2000 RPM = 73,714.2857 driving RPM
                              73,714.2857 + (500 RPM idle * 7 minutes idle time) = 77,214.2857 total RPM per trip
                              1,000,000 / 77,214.2857 = 12.951 trips before failing

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                                #30
                                Hangin' round the trailer shop by myself

                                And I had so much time
                                To sit and post about myself

                                And then there it was
                                Like tachometer mental pie

                                Yeah there it was
                                Like speedo superfly

                                I smell math and candy here

                                Who's that laughing at my missing hair?

                                Who's that casting devious threads in my direction?

                                Trailer boss this surely is a dream

                                Yeah online date this surely is a dream

                                Yeah hunters this surely is a dream.

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