Statistical Design of Experiments
Statistical Design of Experiments
Significant Input Factor Ranking for
Significant Input Factor Ranking for
Rated Torque
Rated Torque
Throttle Position (28
vs. 21)
Speed Regulation (2120
vs. 2080)
Fuel Inlet Rest (2.5”
vs. 6.0” Hg)
Load Cell (New
vs. Used)
Rod End Alignment (Aligned / Not)
Fuel Temp. (100
vs. 120 F)
Comb. Air Temp. (75
vs
95 F)
Computer Zero Shift (On
vs. Off)
Fuel Type (Shell
vs. Texaco)
Fuel Drain Reset. (0”
vs. 4” H2
O)
Torque Filtering (None
vs. Some)
Cell Temperature
Cradle Bearing Rotation
Dyno
Calibration Method
Engine Water Temp. (110
vs. 130 F)
10 20 30 40 50 60 70
250
2500
1200
250
-
500
225
50
50
-
-
2100
100
200
2000
-
240,000
-
12,000
-
140,000
220,000
-
-
-
-
300,000
130,000
120,000
250,000
Change in Torque (ft-lb)
Resource Required
to Reduce Variation
Hours -
Capital $
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