Re: 5k RPM's at 65mph

[Robert W Obrien <rwo@u.arizona.edu>]

I can concur with these previous speed RPM correlations, at least on a 87
5kcst- 80= 3000 rpm in 5th. With a nice rumble from the Flowmaster , which
conveniently silences at 100...:)
Didn't the 5kt and 5ktq have a 3.89 final drive, with 5ks and 5ksq having
a 4.11? Those are the numbers I recall...
Rob



On Thu, 19 Feb 1998, Doyt W. Echelberger wrote:

> I was checking the RPM's tonight at 65mph in 5th gear, and found them to be
> 2,540, significant to three digits.  Tried it several different times over
> a 200 mile trip. That's in a 1987 5kcstq, bone stock including tire size.
> 
> My observations tend to substantiate what Brendan is saying:   
> 
> >Depends on the 5k.  My 5k definitely does _not_ do 80mph at 3000rpm.
> >Closer to 65mph, and 4000rpm at 80mph, similar to your figures for the 4k.
> >My 5k (an '87 S model quattro) has the lower gear ratios.  I don't know
> >personally what determined which gear ratios were used in which 5ks.
> 
> >Brendan
> 
> 
>