Gearboxes?

[simon20vt]

On an already long list of 'things to do' on my MK4, i was wondering about swapping to a 6 speed box. I was driving yesterday and i decided to see what top speed i could get out of my 1.8T. I hit 140 (on my private racetrack) but obviously being restricted by the gear ratios i couldn't go much quicker, and didnt fancy pushing it to the redline and blowing my engine.

How compatible is a 6 speed box, and what else would need changing?

Also, i presume this is going to be better top speed, but i was wondering how acceleration and 0-60 would be affected? How do the gearing ratios compare?

Has anyone swapped from 5 speed to 6 speed box, and if so, what were your thoughts on it?

If you have a 5 speed or 6 speed, or have had the luxury of driving both in a MK4, which would you prefer, and which is better?

Thanks chaps

[Wayne]

From what I have read it is not worth changing due to the work involved plus little gains.

[+49]

140mph? wow presuming you got a 1.8t 150bhp?

Driving mine it seemed to struggle past 120MPH obviously it would go faster but the you need a long straigth road.All on a private race track of course!

Yeah I wouldn't mind  a 6 speed box the 5 speed is sooo lowly geard 70mph is just over 3krpm is I remember correctly very low geared car tbh it can comfortable drive around town at 35-40mph in 5th  gear!

but as above heard it's not a worth while conversion!

[Imteyaz]

I was looking at getting the 5th gear swapped out for a slightly taller gear ratio, better for cruising at motorway speeds / higher top speed...

Ive heard that it's possible to do without taking the box off but not sure what sort of cost would be involved or where to get a suitable 5th gear from.

See here for a guide / DIY:

http://www.brickwerks.co.uk/images/stories/5thGearMod/21336gearswap.pdf

[golf-sib]

Don't see a point as on the s3's the 6th gear has the same ratio as the 5th gear on a 5speed. Which baffles me of the point of having a 225bhp-260bhp car that has closer ratios and a sh!t final gear. Not sure what the golf gear ratio's are on the 6speed...

Ideally a 6speed gearbox needs to have all 1-5 gears of a 5speed gearbox and a higher 6th gear ratio, which I believe some lads use a gear off a tdi to do the trick.

A lot of work for little gain IMO.

[mikemk4gti]

I used to have a 2002 90bhp tdi, i managed 120-125mph on the autobahn in germany!

[tech1889]

125 on a autobahn 

[Wayne]

Don't see a point as on the s3's the 6th gear has the same ratio as the 5th gear on a 5speed. Which baffles me of the point of having a 225bhp-260bhp car that has closer ratios and a sh!t final gear. Not sure what the golf gear ratio's are on the 6speed...

Ideally a 6speed gearbox needs to have all 1-5 gears of a 5speed gearbox and a higher 6th gear ratio, which I believe some lads use a gear off a tdi to do the trick.

A lot of work for little gain IMO.

Spot on

[navmk4gti]

i have a stage 1 agu and most i have hit is 130ish was struggling after that quite a bit and never had enough private runway or whatever crap to see if it will hit the 140 mark  :embarassed:

[turbomick]

i have i agu and it pissers 130 with out any dowts and gets there quite quick