More sporting gear ratios

[Julian Caples]

Found the actual ratios for you

400 gearbox (for 85A engine)
1st 4.3:1
2nd 2.172:1
3rd 1.295:1 (box for 85C has lower third gear 1.41:1)
4th 1.0:1

CR3 (also BWCR 6, 9 & 12)
1st 2.92:1
2nd 1.825:1
3rd 1.292:1
4th 1.0:1

BWCR 5 (403)
1st 3.16:1
2nd 1.825:1
3rd 1.292:1
4th 1.0:1

my 403 runs a CR5 box with a higher 1st (2.92:1) no freewheel (so essentially a CR3/6/9/12 set of ratios. i think they are nicely spaced for my car (3.9 diff) your lighter car could probably easily pull a higher diff without too much loss of acceleration in the intermediates

if you go to the CR3 ratios, you will essentially have a first gear just below your current second ratio, a better spaced second gear and third and top essentially the same (well third is fractionally higher in the CR3 ratios)

hope that helps

Julian