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Calcs

bulletTurbo Choices Page
bulletair lb/m -> bhp -> rwhp approximatiom -> fuel gal/hr
bullet2JZ-GTE air consumption
bulleta Turbo Sizing spreadsheet - great info! (even better when we put more turbos in it)

air lb/min -> bhp -> rwhp approximation -> fuel gal/hr

bulletbhp = 10.86 * lb/min for an intercooled engine according to Ray Hall Turbocharging's calculators
bulletrwhp = .85 x bhp
bulletfuel gal/hr = air (lb/min) * 60 (min/hr) / (12 (a/f ratio) * 6 (lb/gal))
bulletassumes air to fuel ratio of 12:1, and 6 pounds / gallon for fuel

rwhp

0

46

92

138

185

231

277

323

369

415

462

508

554

600

646

692

738

785

831

877

923

969

air lb/min

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

105
fuel gal/hr 0 4 8 13 17 21 25 29 33 38 42 46 50 54 58 63 67 71 75 79 83 88
fuel
L/hr		 0 16 32 47 63 79 95 110 126 142 158 173 189 205 221 237 252 268 284 300 315 331

Air consumption - an Excel 2000 version

* this chart assumes a constant Ev which will not hold true (Ev should peak in the 4300 - 4500 range for the 2JZ-GTE with the stock twins)

base Ev

cid

temp after ic (deg F)

air consumption in lb / min

0.85

183

120

PSI

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

rpm\PR

1.00

1.07

1.14

1.20

1.27

1.34

1.41

1.48

1.54

1.61

1.68

1.75

1.82

1.88

1.95

2.02

2.09

2.16

2.22

2.29

2.36

2.43

2.50

2.56

2.63

2.70

2.77

2.84

2.90

2.97

3.04

3400

10

10

11

12

12

13

14

14

15

16

16

17

18

18

19

20

20

21

22

22

23

24

24

25

26

26

27

28

28

29

30

3500

10

11

11

12

13

14

14

15

16

16

17

18

18

19

20

20

21

22

22

23

24

24

25

26

27

27

28

29

29

30

31

3600

10

11

12

12

13

14

15

15

16

17

17

18

19

20

20

21

22

22

23

24

24

25

26

27

27

28

29

29

30

31

32

3700

11

11

12

13

14

14

15

16

16

17

18

19

19

20

21

22

22

23

24

24

25

26

27

27

28

29

30

30

31

32

32

3800

11

12

12

13

14

15

15

16

17

18

18

19

20

21

21

22

23

24

24

25

26

27

27

28

29

30

30

31

32

33

33

3900

11

12

13

14

14

15

16

17

17

18

19

20

20

21

22

23

23

24

25

26

27

27

28

29

30

30

31

32

33

33

34

4000

12

12

13

14

15

15

16

17

18

19

19

20

21

22

22

23

24

25

26

26

27

28

29

30

30

31

32

33

33

34

35

4100

12

13

13

14

15

16

17

17

18

19

20

21

21

22

23

24

25

25

26

27

28

29

29

30

31

32

33

34

34

35

36

4200

12

13

14

15

15

16

17

18

19

20

20

21

22

23

24

24

25

26

27

28

29

29

30

31

32

33

33

34

35

36

37

4300

12

13

14

15

16

17

17

18

19

20

21

22

22

23

24

25

26

27

28

28

29

30

31

32

33

33

34

35

36

37

38

4400

13

14

14

15

16

17

18

19

20

20

21

22

23

24

25

26

26

27

28

29

30

31

32

33

33

34

35

36

37

38

39

4500

13

14

15

16

16

17

18

19

20

21

22

23

24

24

25

26

27

28

29

30

31

31

32

33

34

35

36

37

38

39

39

4600

13

14

15

16

17

18

19

20

20

21

22

23

24

25

26

27

28

29

29

30

31

32

33

34

35

36

37

38

38

39

40

4700

14

14

15

16

17

18

19

20

21

22