SR gear ratios
Posted: 03:34 pm Jul 18 2011
The SR gearbox ratios are different from the E series
E series ratios are:
1st = 2.692 (35/13)
2nd = 2.000 (28/14)
3rd = 1.533 (23/15)
4th = 1.235 (21/17)
5th = 1.041 (25/24)
6th = 0.869 (20/23)
SR model ratios are:
1st = 3.000 (36/12)
2nd = 1.866 (28/15)
3rd = 1.388 (25/18)
4th = 1.130 (26/23)
5th = 0.960 (24/25)
6th = 0.833 (20/24)
Primary drive ratio is the same at 2.863
By my calculations 13/50 gearing on the SR equates to approximately the following E series gearing:
1st = 12/52!
2nd = 13/46
3rd = 13/46
4th = 13/46
5th = 13/46
6th = 13/48
As you can see, 1st gear is on the SR is ridiculously low! (no doubt because the SR model originally came with 14/45 gearing for the street)
E series ratios are:
1st = 2.692 (35/13)
2nd = 2.000 (28/14)
3rd = 1.533 (23/15)
4th = 1.235 (21/17)
5th = 1.041 (25/24)
6th = 0.869 (20/23)
SR model ratios are:
1st = 3.000 (36/12)
2nd = 1.866 (28/15)
3rd = 1.388 (25/18)
4th = 1.130 (26/23)
5th = 0.960 (24/25)
6th = 0.833 (20/24)
Primary drive ratio is the same at 2.863
By my calculations 13/50 gearing on the SR equates to approximately the following E series gearing:
1st = 12/52!
2nd = 13/46
3rd = 13/46
4th = 13/46
5th = 13/46
6th = 13/48
As you can see, 1st gear is on the SR is ridiculously low! (no doubt because the SR model originally came with 14/45 gearing for the street)