Tallest 5th gear possible

[jlpst94]

I'm currently running an EcoDiesel tranny with an AVX code.  I looked it up and it's got a .75 5th gear ratio which is one of the taller 020 5th gears.   It's still revving too high on the highways for me.  Is it possible to swap in a newer TDI tranny or any other tranny?  Anyone have any options for this.  I'd love to be at 2500rpm cruising at 65-70.   

[jlpst94]

I guess I shouldn't just ask for the tallest 5th gear because of the different final drives.  What are my options to get lower rpms on the highway?  The EcoDiesel tranny runs around 3500 at 70mph and I'd love to get it lower

[8v-of-fury]

Pretty much al the other .75 and .71 transmissions (020) cruise 100 (60mph) at 2500-ish.

The AVX has a 4.25 F/D and it shows. Be a good trans for a screamer 16v lol!

[theman53]

http://www.scirocco.org/gears/

[CrazyAndy]

Just get an FF out of a cabriolet and be done with it.

[EcoTX]

Lots of time, effort, and money for a few hundred measly RPM I say, just live with it.

The last tank in my ECOdiesel was 645.3 miles on 14.213 gallons.
That's 85% highway / 15% city.
Still managing mid 40's running 70-75MPH up there around 3500 RPM after all those years and miles.

Car just rolled over 392,000 miles, original engine, original headgasket, original turbo, etc.
I did burn up 5th gear in the original AVX tranny awhile back, but promptly replaced it with another AVX because it is a great transmission and great match for the 1.6TD with the K14.
Those Germans matched that tranny to that engine for a reason...and if you've never driven the combo you can't really say much.

[8v-of-fury]

This is true sir..

Our 1.6TD and 4S trans loves to be above 3000RPM on the highway.. and we squeeze nearly 50 out of it every tank.

[Gizmoman]

Possibly install some sound deadening or turn the volume up on the pod?

[jlpst94]

I guess it is a lot of work but I'd like to get a tranny ready for my next build or if this car fails.  Maybe the cabrio tranny is the one to get.  Thanks guys 
I do get around 50mpg so I shouldn't complain.  Maybe a louder stereo is the fix

[bbob203]

I installed a modified passat b3/b4 inner boot on my mk2 and it killed a lot of sound. its a heavy rubber boot that goes under the outer cosmetic boot.

[libbydiesel]

An 020 swap is an easy afternoon...

[8v-of-fury]

An 020 swap is an easy afternoon...

'ay, but for a few hundred RPM?

[745 turbogreasel]

Yep

[libbydiesel]

Absolutely.  If I had an AVX in an ECO I would most certainly swap it out along with the injection pump and the soda straw exhaust...

[mzak88]

I swapped a tdi o2a ctn into my 3. Changed fifth gear from .74:1 out for a 0.658:1 set. Combined with my ctn's 3.164:1 R&P, 110km/h (70ish), is achieved at 2100.