Starting – Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI System Hardware & BigComm Software User Manual

Page 76

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BigStuff3 Pro SEFI System

Version 2.1 – February 2011

69

Next, depress and hold the keyboard “Shift” key. Now, use the arrow keys, to maneuver through the
cells to be changed. As the cells are being selected they will become highlighted. Once the desired
cell range has been highlighted, release the “Shift” key. Depress the “Page Up” key to increase the cell
values and the “Page Down” key to decrease the cell values. The cell values will increase or decrease
by a value of one (1) for every keystroke. To exit this mode, depress any one of the arrow keys.

The illustration below shows the areas of the base fuel map that the ECU accesses under different
driving conditions.

Hint: Use the 02% Correction feedback in the Dash to help calibrate the Fuel table VE values.






















Note: Be sure the ECU is properly configured and the Base Fuel and Spark Tables are
calibrated before configuring and calibrating any of the following engine operating
parameters

.


34. STARTING


The “Starting” drop-down selections allow the user to calibrate parameters associated with starting
(cranking) and running the engine for a short period of time (temperature dependent) after the engine is
initially started.

The BigComm software allows the user to configure the Load (MAP)
and RPM axes allowing for a larger number of cells (map area) to be
used for the fuel and spark tables.

MAP (Kpa) - Engine Load

203

80

80

80

80

80

80

80

80

80

87

90

91

91

91

91

91

176

80

80

80

80

80

80

80

87

87

90

90

90

95

95

95

91

150

80

80

80

80

80

80

80

83

83

87

87

90

95

95

95

91

125

80

80

80

80

80

80

80

80

82

82

84

90

91

91

91

91

111

80

80

80

80

80

80

80

8

80

80

80

80

90

90

90

90

100

80

80

80

80

80

80

80

80

75

75

80

8

87

87

87

87

90

77

77

80

80

80

80

75

70

70

70

70

77

84

82

82

82

81

77

77

77

80

80

70

70

70

70

70

70

70

82

82

82

82

70

60

60

77

75

70

70

70

70

66

66

66

66

70

70

70

70

64

50

50

60

70

66

66

66

60

60

60

60

60

66

66

66

66

60

40

40

55

60

60

66

66

56

59

50

59

59

59

59

59

59

56

36

36

46

50

50

55

55

56

56

50

55

55

5

55

55

55

50

35

35

45

50

50

50

55

50

50

50

50

50

50

50

50

50

45

31

31

40

40

44

44

48

48

48

48

48

48

48

48

48

48

41

25

25

3

35

38

40

44

44

44

44

44

48

48

48

48

48

28

25

25

28

33

35

40

40

40

40

40

44

48

48

48

48

48

600

800

1,000

1,150

1,200

1,500

1,800

2,000

2,400

2,800

3,200

3,600

4,000

5,000

6,000

7,000

RPM

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