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WALBRO PUMP DATA

GSS242

 

GSS307

 

GSS340

190 lph

 

255 lph

 

255 lph

12.0V

13.5V

Current Draw

12.0V

13.5V

Current Draw

12.0V

13.5V

Current Draw

PSI

GPH

PSI

GPH

amps

 

PSI

GPH

PSI

GPH

amps

 

PSI

GPH

PSI

GPH

amps

0

56

0

64

3.1

 

0

75

0

83

5.5

 

0

75

0

83

4.9

10

52

10

61

3.6

 

10

72

10

81

5.8

 

10

72

10

81

5.2

20

48

20

57

4.1

 

20

67

20

77

6.7

 

20

68

20

77

6.1

30

44

30

53

5.0

 

30

63

30

72

7.7

 

30

63

30

73

7.0

40

40

40

50

5.8

 

40

58

40

68

8.8

 

40

59

40

69

8.0

50

36

50

46

6.7

 

50

54

50

64

9.9

 

50

56

50

65

9.0

60

32

60

43

7.5

 

60

49

60

58

10.9

 

60

52

60

61

10.1

70

28

70

39

8.4

 

70

40

70

51

12.0

 

70

48

70

57

10.6

80

22

80

32

9.3

 

80

29

80

39

13.2

 

80

43

80

52

11.1

90

12

90

23

10.2

 

90

0

90

12

14.5

 

90

36

90

45

11.6

100

2

100

15

11.5

             

100

27

100

38

13.5

110

 

110

0

12.6

                       

Both the GSS307 and the GSS340 pumps are rated at 255 liters/hr @ 45 psi (65 gal/hr @ 45 psi).  Above 70 psi, the GSS340, still provides flow, while the GSS307 drops off significantly.  If you run normally aspirated, your fuel pressure regulator is set at about 40 psi, which is the same flow rate for both pumps.  If you are running a supercharger and FMU, the pressure will need to increase well above 70 psi when under boost, and the GSS340 would be a better choice.

 

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Revised: September 22, 2001 09:01 PM