Close Ratio Box
Close Ratio Box
Author
Discussion

shapeshifter

Original Poster:

1,181 posts

251 months

Saturday 9th August 2008
quotequote all
I have a 3.6 2005 Tuscan 2, I'm thinking of putting a close ratio box in it, what improvements will it make?

NCE 61

2,457 posts

310 months

Saturday 9th August 2008
quotequote all
The first three ratios are slightly higher allowing higher road speed for a given RPM.The ratios are as follows:-

Standard Gearbox

1 2.95:1
2 1.95:1
3 1.34:1
4 1:1
5 0.8:1

Close Ratio Gearbox

1 2.43:1
2 1.56:1
3 1.24:1
4 1:1
5 0.8:1

The actual difference though realy depends on the final drive ratio, it's not really worth having unless you have a 3.73 to 1 diff, the 3.46 to 1 blunts the acceleration too much.

This is a useful Site for working everything out.

HTH