[urq] 83 Urq tranny compatibility w/4kq?

[Martin Pajak]

Original 20v Ur had 3.89:1
Only the 200q 20v and v8 had the torsen 016 with 4.11 gears

HTH
Martin Pajak

http://www.quattro.ca

1982 Audi Ur-quattro (50,000 mi) SQ project
1984 Audi 80 quattro (145,000 km) 2-door!!
1984 Audi 4000s quattro (131,000 mi) new toy :)
1987 Audi 4000s quattro (212,000 km) wintervagen mit 7A :)
 
 
-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf
Of arpad buzas
Sent: Monday, June 11, 2007 6:47 PM
To: Ingo Rautenberg
Cc: urq at audifans.com
Subject: Re: [urq] 83 Urq tranny compatibility w/4kq?

 20 valve swap in a Ur-Q, I would go with a 20 valve motor and tranny + 4:11
rear from a 4000.I think that was the 91 Ur-Q setup!

Ingo Rautenberg <ingo.rautenberg at gmail.com> wrote:  Oh, tranny from 5ktq if
you want to keep the 3.89 rear diff and 
you'll want to switch over to the 4.11 rear if you're doing the non- 
turbo quattro tranny. Sorry I forgot to mention that.

Ingo (mit orginal gearing in '84 Urq)

On Jun 11, 2007, at 4:35 PM, Ingo Rautenberg wrote:

> Steve,
>
> I was thinking about this as well, but do realize that IMO the
> gearing of the 4kq, while appropriate for the 4kq, is not optimized
> for the Urq and it's turbo motor. Remember, the 4kq had a top speed
> of ~115 mph. Plus it'd be pretty buzzy at cruising speed...
>
> I'd stick with the tranny you have or one from a non-turbo 5kq.
>
> Ingo
>
> On Jun 11, 2007, at 4:14 PM, urq wrote:.
>
>> ... I just realized that I do have a '84 4kQ tranny in the garage,
>> and I'm
>> going top need to figure out what's up with the clutch on my
>> car ... so I
>> thought I'd pose this question to those on the list who may have
>> experienced
>> both flavors ... perhaps I should swap the transaxle at the same
>> time ...
>>
>> I'm sticking with the WX engine (at least for the near term) ... is
>> the
>> performance of the car better with the 4kQ tranny or should I stick
>> to the
>> one I have?
>>
>> ... is it known for a fact that the FDR of the '84 4kQ tranny is
>> different
>> from that of the urq? I know this has been discussed ad nauseum
>> before, but
>> ISTR that the final result was that they were the same. If the 
>> 4kQ is
>> indeed 4.11:1, it would be an opportunity to swap in the V8 Torsen
>> rear diff
>> ... I just had a 4kQ prop shaft next to one for a 5-speed V8Q and
>> the 4kQ
>> shaft is a couple inches longer. Has anyone swapped a rear Torsen
>> onto an
>> urq? What prop shaft did you end up needing?
>>
>> TIA!
>> Steve B
>> San José, CA (USA)
>>
>> -----Original Message-----
>>
>> Louis-Alain,
>>
>> You basically covered it nicely.
>> The only other difference is that the 4kq tranny has small output
>> flanges
>> while Ur-q has the large ones, but that's just a matter of swapping
>> out of
>> your original. Also, starting '84 the bellhousing has a notch to
>> clear the
>> new style MC/3B/AAN flywheel sensors.
>>
>> Hope this helps.
>>
>> Martin Pajak
>>
>>
>> -----Original Message-----
>>
>> Swappable, sure. Physically at least.
>>
>> But there is some difference:
>>
>> - Final drive ratio, 3.89 for the urQ, 4.11 for the 4kq.
>> - Some gears are different, as the 1983 urq has very short first
>> and second
>> gears, then a hole, then 3-4-5 are closely spaced. To resume, urq
>> 1983's are
>> 6 speed gearbox missing the 3rd... 4kq are better, more envenly
>> spaced.
>>
>> I forwarded this message to Martin Pajak, he's THE reference for
>> this kind
>> of question.
>>
>> Martin ?
>>
>> Louis-Alain
>> 1983 Quattro
>>
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>
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> Have an urq answer? ... Please help others by adding to the KB ... 
> all contributions welcome!

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contributions welcome!

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Have an urq answer? ... Please help others by adding to the KB ... all
contributions welcome!