Gear ratios

I finally got around to calculating the gear ratios and speeds for the car. I have a T5 251 box which takes 300lbs-ft torque – hopefully enough to cope with the V8. The rear diff is a Jag 3.51 ratio.

As I have not got the actual wheels yet the tyre size may be off.

Johns FIA Jaguar diff 3.51
Tremec T5 1352 – 251 Gearbox 300lbs-ft

Gears

Tyre dia.

Axle

1st

2nd

3rd

4th

5th

25.5

3.51

2.95

1.94

1.34

1

0.63

Revs

Speed

1000

7

11

16

22

34

2000

15

22

32

43

69

3000

22

33

48

65

103

4000

29

45

65

86

137

5000

37

56

81

108

172

5500

40

61

89

119

189

6000

44

67

97

130

206

6500

48

72

105

141

223

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