Re: 4K tranny - .75 or .80 5th??

[Brett Van Sprewenburg <brett@shell.netacc.net>]

> Years ago I put a .75 fifth gear kit in my 92 Golf diesel, which had a
> very close ratio gearbox (fourth was 1.13, fifth was .89, final was 3.94).
> The resulting gap between 4th and fifth made for uncomfortable driving.  
> I agonized over the decision for weeks, and actually wrote a quick and
> dirty basic program to simulate engine and road speed based on tire and
> gear ratio - it allows you to row up and down through the gears to see
> what your favourite shift points will result in.  I can post it on
> anonymous ftp if anyone's interested.  Tire size and transmission ratios
> are in flat text files, so it's easily modifiable to suit your needs.  It
> comes with the standard VW transmissions and common tire sizes already.

All this information, including a gear / tire / speed / rpm calculator with
a full chart of just about every 020 box made with drive flange info is
on scirocco.org.  Click the 'Gear' icon off the first page and enjoy.

==Brett


> 
> Here's the 2-5 and finals for the 4K, 7A and 9A boxes.  Notice that the 7A
> in fourth is the same as the 4K in fifth - which is great for me, as on
> those rare occasions when I want to hit top speed, I still can in 4th...
> 
> -------2----3----4----5---FD-
> "4K" 2.12 1.44 1.13 0.91 3.94
> "7A" 1.94 1.29 0.91 0.71 3.94
> "9A" 2.12 1.44 1.13 0.91 3.67
> 
> 
> Drew (84 Wolfsburg Edition)

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