1.8t 6 speed gearbox

[neil1780]

Im doing a conversion late summer on mine 1.8t I think but everyone uses the o2a 16v box.

Has anyone tried to fit a mk4 6 speed from a 180hp model?

[Wayne]

Can be done but not really worth it tbh.

[neil1780]

Whys that mate i thought it would be better for cruising speeds?

[porter_89]

i been told not to do it to my own mk4 becuase the retios are so short they basically work out to be the same as a mk4 5 box

cheers

[tweed]

Just because you will have a extra gear doesn't mean you will get more speed.
I do remember reading in a PVW mag they had a final drive that would do 200mph at something like 7000rpm but you would need about 400bph to reach that speed.

[neil1780]

I know what you mean but it not why i was asking bud.
In my 8v at 80mph its at 4k revs, not sure if the 16v box is the same but my thinking was the 6 speed box would bring the revs down  500-1k ish.

[Wayne]

I know what you mean but it not why i was asking bud.
In my 8v at 80mph its at 4k revs, not sure if the 16v box is the same but my thinking was the 6 speed box would bring the revs down  500-1k ish.

My Octavia VRs is a 180bhp on a 5 speed and it is much better gearing than the 8v, still cannot see the need for the 6spd box.

[neil1780]

To be honest I'm just looking at options mate. Everyone uses the 16v box. I take it the mk4 box doesn't fit?

[Wayne]

To be honest I'm just looking at options mate. Everyone uses the 16v box. I take it the mk4 box doesn't fit?

Don't think so, you could also look at changing the final drive ratio.

[dashey]

The mk4 box sits on a different mount thats why people use the 16v box so it sits on the mk3 subframe