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Model specific boards => Golf mk2 => Topic started by: Shivas Regal on 05 December 2011, 21:11

Title: Which gearbox for better cruising/mpg on 16v gti
Post by: Shivas Regal on 05 December 2011, 21:11
In these times of extortionate fuel prices, I would like to have the option of cruising in my valver rather than ragging it everywhere.

Was wondering if there is another gearbox that will fit or better 5th gear that can be used to improve mpg performance rather that acceleration.

Cheers guys
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: The Mighty Elvi on 05 December 2011, 21:14
If your a bit flush with the readies you can buy a Quaife 6 speed gearbox.

If not, iirc you can fit the 'E' gear from a Driver. Its longer than 5th.

If you go to www.brokevw.com

There is a full list of gearbox codes and ratios/final drives.

Take your pick.

Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Ben Lessani on 06 December 2011, 11:18
You could just drive slower :rolleyes:
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: SoundillusioN on 06 December 2011, 11:37
You could just drive slower :rolleyes:

Yeah but even at 70, 5th seems a little short...
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: clipperjay on 06 December 2011, 11:38
02A 311 361 M £59.80
02A 311 158 R £94.21

From a bit of searching the Gearbox can have a longer 5th gear from a TDI or VR6
I got these part numbers but you will have to confirm they will go into the 020 box
They fit the Rallye not sure on 16V gti though if its the same box which I think it is i.e casing not internals then they will fit!
This is interesting good reading!
http://wiki.the-corrado.net/5th_gear_cog_change.html (http://wiki.the-corrado.net/5th_gear_cog_change.html)
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Sam on 06 December 2011, 11:52
The most common swap is to a vr 5th, the 16v does have a really really short final drive - still built for acceleration rather than cruising on the motorway. No idea how the Autobahn loving Germans overlooked this.
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Shivas Regal on 06 December 2011, 23:04
Thanks guys.

I actually have a complete vr6 highline that I'm breaking.

Is the general advise to take 5th out of vr6 and pop it into 16v?
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Sam on 06 December 2011, 23:09
Thanks guys.

I actually have a complete vr6 highline that I'm breaking.

Is the general advise to take 5th out of vr6 and pop it into 16v?

Not as simple as popping it out! If it 'pops' chances are loads of other sh!t will pop out with it lol. There is a guide, I will try dig it out
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: clipperjay on 07 December 2011, 09:09
It is the easiest one to remove because the cog is right on the end of the box!
By the way you change one gear it does overall effect the ratios of the other four  :wink:
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: The Mighty Elvi on 07 December 2011, 10:22
It is the easiest one to remove because the cog is right on the end of the box!
By the way you change one gear it does overall effect the ratios of the other four  :wink:

Surely that only applies if he changes the final drive.  Simply changing 5th wont affect the other gears, no?

Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: clipperjay on 07 December 2011, 11:24
It is the easiest one to remove because the cog is right on the end of the box!
By the way you change one gear it does overall effect the ratios of the other four  :wink:

Surely that only applies if he changes the final drive.  Simply changing 5th wont affect the other gears, no?



Yes I wasn't clear enough TBH  :embarassed:
Most people like the VR 1st and 2nd so they mix and match the cogs by changing the final drive to suit.
The final ratios can be wrong as it depends how you drive and how high you're RPM is going to be.
What I wanted to add was using the TDI fifth cog should be better if you just want a longer fifth gear.
The other thing from memory was once you crack the box open it might be better to change out the lay shaft if you are doing a complete strip down! 

There are specialist people out there and these guys have the best reputation I would ring them and ask as much as possible about options for your car. :wink:

OP this just a forum we don't do this day in day out you NEED to research and find out what is best for you don't take our word its not gospel, but at least you will not be completely blind when choosing an option best suited for you!
http://www.jprace.net/services.php (http://www.jprace.net/services.php)
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: The Mighty Elvi on 07 December 2011, 11:32
OP.

Read this:

http://www.brokevw.com/020ratios.html



"020" 4 & 5 Speed VW Gear Boxes

Code                        1st.   2nd.   3rd.   4th.   5th.   R&P    Notes

GC                          3.45   1.94   1.29   0.97   N/A    3.89   4 speed up to '80
 
GC,GN                     3.45   1.94   1.28   0.91   N/A    3.89   4 speed from '81

GP,GL                     3.45   1.75   1.06   0.71   N/A    3.89   3+E from '81

GY                         3.45   1.75   1.06   0.71   N/A    4.17   3+E Pick up
 
FO                         3.45   1.94   1.29   0.97   0.76   3.89   11/78-5/79
 
FF,FN,FH                 3.45   1.94   1.29   0.97   0.76   3.89   Up to 07/80

FF,FN,FH,FJ             3.45   1.94   1.29   0.91   0.71   3.89   From '81

FM,FD,FK                 3.45   2.12   1.44   1.13   0.91   3.89   Close Ratio

6G                         3.45   1.94   1.29   1.29   0.91   3.65   Euro 8/82-7/83

7G                         3.45   2.12   1.44   1.13   0.91   3.65   Close Ratio, Euro 8/82-7/83

2H                         3.45   2.12   1.44   1.13   0.91   3.94   Close Ratio '83 GTI

4S,AOP,AGS            3.45   1.94   1.29   0.91   0.75   3.94   86-90 1.6 Diesel

4T,8A                     3.45   1.94   1.29   0.91   0.75   3.67   Euro From 8/83

7A                        3.45   1.94   1.29   0.91   0.71   3.94   From 8/83

4K                        3.45   2.12   1.44   1.13   0.89   3.94   Close Ratio

4Y                        3.45   2.12   1.44   1.13   0.89   3.67   Close Ratio 1.8 8v

9A,AEN,ACD            3.45   2.12   1.44   1.13   0.89   3.67   Close Ratio '85-'89   (8v up until 1990)

ACH                       3.45   1.94   1.37   1.03   0.75   3.94   '85 1.6 Diesel

AGB,2Y                   3.45   2.12   1.44   1.13   0.91   3.67   Close Ratio,16v

ACN,AON,ASF,ACL     3.45   1.94   1.37   1.03   0.75   3.67   1.8 8v

AUG,DGF,DGT           3.45   1.94   1.44   1.13   0.89   3.67   1.8 8v '90-'93  (8v after 1990)

AWY                       3.45   1.94   1.44   1.13   0.89   3.94   '90 Diesel

AVX                        3.45   1.94   1.29   0.91   0.75   4.25   1.6 TD ECO
 
CHB,APW,DFN           3.45   1.94   1.37   1.03   0.85   3.67   From '93 1.8

CHD,DFP,ATH           3.45   1.94   1.28   0.91   0.75   3.67   From '93 1.9 TD 75hp




"02A" 5 Speed  G-60, Passat 16v, VR6

Code                       1st    2nd    3rd    4th    5th    R&P      Notes

ATA                       3.778  2.105  1.345  0.971  0.795  3.684    Corrado G60

ACG                       3.778  2.105  1.345  0.971  0.795  3.944    Passat 16v

ASD                       3.300  1.944  1.308  0.971  0.717  3.944    Passat 16v

ACG                       3.778  2.105  1.345  0.971  0.795  3.944    Passat 16v

AYL,AYK                 3.778  2.118  1.429  1.029  0.837  3.684    Corrado G60, Passat 16v

CCM,CHN                3.300  1.944  1.308  1.034  0.838  3.389    VR6 Passat, Golf 3, Jetta 3

CDM                       3.300  1.944  1.308  1.034  0.838  3.647    VR6 Corrado

CHA                       3.778  2.118  1.360  0.917  0.717  3.944    TDI Passat

CNL                       3.778  2.118  1.458  1.029  0.837  3.684    2.0L 8v Passat

CES                       3.778  2.118  1.429  1.029  0.837  3.684    Passat

CGY                       3.778  2.118  1.458  1.029  0.837  3.684    Passat

CAW                       3.778  2.118  1.458  1.034  0.838  3.647    Corrado









 
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: clipperjay on 07 December 2011, 11:39
I might have to stick disclaimer on every post from now on a JON! :kiss: :laugh:
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Sam on 07 December 2011, 11:46
Right...

FF,FN,FH,FJ             3.45   1.94   1.29   0.91   0.71   3.89   From '81

4S,AOP,AGS             3.45   1.94   1.29   0.91   0.75   3.94   86-90 1.6 Diesel

4T,8A                   3.45   1.94   1.29   0.91   0.75   3.67   Euro From 8/83

CHA                       3.778  2.118  1.360  0.917  0.717  3.944    TDI Passat

I dont know if these would be too long for a valver though?

Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Sam on 07 December 2011, 12:30
Here is the how to guide I was on aboot

http://www.brokevw.com/5thswap.html

Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: The Mighty Elvi on 07 December 2011, 17:28
There's a handy speed calculator on the side of the chart.

http://scirocco.org/gears/


Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: Sam on 07 December 2011, 18:03
What the hell were the vw motorsport cars used for!?  :evil:
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: DeanO.72 on 08 December 2011, 17:37
could you not put a longer final drive into the standard 16v gear box from another gearbox?    :huh:
Title: Re: Which gearbox for better cruising/mpg on 16v gti
Post by: DeanO.72 on 08 December 2011, 17:39
could you not put a longer final drive into the standard 16v gear box from another gearbox?    :huh:

AH my bad!! didnt see there was a second page..