[urq] Eibachs Source

[The Corbs]

I believe those kits were custom produced for Sport Wheels Performance Parts 
out of Glenwood Springs, Co.

John Beckius (of "Uncle John" Tech Talk in earlier Quattro Quaterlies) 
is/was the owner.

I got one of the last sets from them.  In fact they had run out of the 
matching shocks that they had also had custom produced.

Still have them, but will need to dig for them in the event that they would 
be of assistance to anyone?

John Corbs

----- Original Message ----- 
From: "Martin Pajak" <martin at quattro.ca>
To: "'Eric Renneisen'" <racingiron at comcast.net>; "'Urq List'" 
<urq at audifans.com>
Sent: Sunday, March 19, 2006 11:48 AM
Subject: Re: [urq] Eibachs


> Eric,
>
> Thanks for the info.. very helpful!
>
> I remember a liniar Sport kit available for Ur-q for limited time back in
> the early 90s.
> The Pro kit was discontinued late in 90s early 00s.
> The 4000q kit I have has both springs that are progressive (or at least 
> they
> look it).  Kit came from Europe (1983-87 typ85 with 5cyl. Engines)
> front (1504.001VA) progressive
> rear (1504.002HA) progressive
>
> Hope this helps
>
> Martin Pajak
>
> http://www.quattro.ca
>
> 1982 Audi Ur-quattro (50,000 mi) new project
> 1983 Audi Ur-quattro (85,000 mi) Concourse d'Elegance
> 1985 Audi Ur-quattro (212,000 km) Euro spec. import mit 3B :)
> 1987 Audi 4000s quattro (205,000 km) wintervagen mit 7A :)
> 1990 Audi V8 quattro (365,000 km) pipe and slippers
>
> -----Original Message-----
> From: Eric Renneisen [mailto:racingiron at comcast.net]
> Sent: Friday, March 17, 2006 7:15 PM
> To: 'Urq List'
> Cc: martin at quattro.ca; 'Brandon Rogers'
> Subject: [urq] Eibachs
>
> OK, here's what I found out from the Eibach tech guy:
>
> - They only show the 1511.140 kit for the urq, and it's discontinued.
> It's progressive both front and rear.  Based on the front P/N, this is
> what I believe I have on the '86.  Eibach has no listing for a linear
> kit for this car.  Martin, maybe the linear kit you reference is from
> Europe?  The guy I spoke to said he could not look up Euro P/Ns in his
> system.
>
> - Martin, your 4KQ kit (90Q) is European (obviously, since the car was a
> Euro import).  They couldn't give me any specs for it, but it should be
> close to what we got, if not identical.  Are they mixed
> progressive/linear?
>
> - The 4KQ kit available here has noticeably lower rates than the urq
> kit, which explains the lower ride height, especially in the front.  The
> front is progressive and the rear is linear.  Oddly, the rear spring is
> the same as the front on the 80Q/90Q (and on the 4K FWD!).  It's rate is
> also higher than the final rate of the progressive front spring, which
> leads to speculation that the kit is specced backwards.  Eibach guy
> thought it looked weird, too.  Comparing the front 4KQ spring to the urq
> spring leaves no wonder why we'd have problems with a low front end.
>
> - The 80/90Q kit uses the exact same rear progressive spring as the urq
> kit.  The front is linear.  Based on the front spring P/N, this is what
> I believe is on my '85.  For an urq, this is certainly a better choice
> than the 4KQ kit.  However, I did notice that with the '85 LF strut on
> the '86, I did get some slight fender rub during hard compression, and I
> vaguely recall the same when the '85 was mobile.  Using some of the
> figures from Eibach, static ride height with this front spring would be
> about 4mm lower than the urq kit, and the linear rate is much lower than
> the upper range of the urq spring.
>
> Here are the rates and P/Ns for the various Eibach springs:
>
> urq (1511.140 kit):
> front (1511.001) 120-200 lbs progressive
> rear (1511.002)  120-200 lbs progressive
>
> 4KQ (1504.140 kit):
> front (1504.101) 108-137 lbs progressive
> rear (1510.001)  143 lbs linear
>
> 80Q/90Q (1510.140 kit):
> front (1510.001) 143 lbs linear
> rear (1511.002)  120-200 lbs progressive
>
> The astute reader will notice that the front and rear urq springs are
> the same rate, and the rear spring is still available as part of the
> 80Q/90Q kit!  I immediately wondered if that rear spring would be
> suitable in the front as well.  Unfortunately, there is a difference in
> length.  The free length of the rear spring is 2cm shorter, and worse,
> under load the rear one would be 2.5cm (1") shorter (I have to assume
> the two springs don't "progress" at exactly the same rate).
>
> So there it is.  I'm happy to have the correct kit on the '86, but I'm
> not too enamored with Eibach.  The weirdness with the 4KQ kit and the
> mixing of progressive and linear on the same car just makes me scratch
> my head (of course, I'm no suspension guru).  I've never really been a
> fan of progressive springs anyway.  If we could find an alternative that
> provided a reasonable ride height and linear spring rate, I'd gladly
> change.
>
> Eric Renneisen
> '86 urq
> '93 S4
>
>
>
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