Custom Tranny Gears

[David]

By my calculations, if I use the 0.640 5th gear of the early CGTs in place of the stock 0.537 5th, it should lower my RPMs in 5th by about 16%. Right? So @ 70 mph when I now turn around 3,000 RPM (just a guess, I can't remember)I would be turning only 2,520 RPMs, right? Any clue what this would do to my highway mileage? I know it will at least make for a quieter highway ride... Thoughts on this mod?

Dave
1987.5 CGT 2.3
SE Virginia

>
> From: "passat TS" <passat_ts at hotmail.com>
> Date: 2003/08/19 Tue PM 03:10:29 EDT
> To: audi at humanspeakers.com,  duandcc_forums at cox.net
> CC: quattro at audifans.com
> Subject: Re: Custom Tranny Gears
>
>
> You can use the 5th Huw suggested in your transmission or a different one.
>
> The ABV has a 5th 25/39 ratio while the QF has a 22/41 (Huw suggestion) or
> you can use a intermediate 2M with 24/40
>
> Later,
>
> Carlos.
>
> >From: Huw Powell <audi at humanspeakers.com>
> >Reply-To: audi at humanspeakers.com
> >To: David <duandcc_forums at cox.net>
> >CC: quattro at audifans.com
> >Subject: Re: Custom Tranny Gears
> >Date: Tue, 19 Aug 2003 14:36:47 -0400
> >
> >
> >
> >David wrote:
> >
> >>On this same line, are there any compatable 5th gears I could swap
> >>into my CGT that would lower my RPM while cruising on the highway?
> >>I'm not worried about loosing acceleration in 5th as I only use 5th
> >>for real highway crusing and would just downshift to 4th...
> >
> >The gears are higher in the early (pre-1984) coupe trannies, but it's
> >partly a function of final drive ratio, too.
> >
> >final drive, 4.45 vs. 4.90
> >
> >fifth 0.537 vs. 0.640
> >
> >(later tranny numbers last)
> >
> >--
> >Huw Powell
> >
> >http://www.humanspeakers.com/audi
> >
> >http://www.humanthoughts.org/
> >
>
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