T56 Gear Ratios

[xrboss8]

Does anybody know if the gearbox ratios are different between the xr6t and xr8 t56? If so what are they?

Cheers

[Turbo6man]

Yes, first gear is 2.97 for the XR8 and 2.66 for the XR6T. The rest are the same.

1.78

1.3

1.0

0.8

0.63

[xrboss8]

so an XR8 box would be better for a transplant into a mk1 than a XR6T box as I plane on retaining the original diff ratios.

thanks turb6man.

Edited 11/01/06 11:25 AM by xrboss8

[Turbo6man]

  xrboss8 said:

so an XR8 box would be better for a transplant into a mk1 than a XR6T box as I plane on retaining the original diff ratios.

thanks turb6man.

<{POST_SNAPBACK}>

Yes, as far as ratios go that is true. However you need to suss out the bellhousing arrangement regarding input shaft length and clutch actuation to be sure you can use the V8 box behind the 6. If you pose the question to Ben in the Mal Woods section of Mods forum he will be able to give you all the gen.

PS Mal Woods conversion uses a box with the following ratios which would also work very well with a MkI ...

2.97

2.07

1.43

1.00

0.8

0.62

As you can see it gives you closer ratios in the intermediates for better roll-on accelleration.