Re: eibach springs for 4kq/cq/gt

[John Karasaki <johkar@teleport.com>]

Dan and all:

I bit the bullet for project snow 4kq and will use coil-over springs 8" 250
lbs front, and 10" 300lbs rear.  The difference in price between the
H&R/Eibach/Intrax (sp?)/Apex and the coil-over is not that great.  What is
killing me in cost is the additional 100% cost for the koni adjustable
shocks!  At least for the 4kq, the shocks cost more than the coil-over kit!

Cheaper shocks can not handle the higher spring rates.  So if you want to
do a coil over conversion a bit cheaper, you can run eibach like spring
rates with Boge turbo gas inserts.  Then the cost is closer to $800 than
over $1200.

The first advantage to coil-overs in an infinite selection of springs,
spring rates, and heights.  Because of this, it is very difficult to do a
direct comparison between the two.

HTH.


At 04:00 PM 11/4/98 -0500, Dan Simoes wrote:
>This is mainly to summarize the info I received today, and
>so we will have it on record for future reference.
>
>I have in my possession a lightly used set of Eibach springs.
>I intend(ed) to use these on my CQ, but I decided to check into
>it a bit, at my mechanics urging.  
>
>The set I have is:
>
>a) 1504.101
>b) 1510.001
>
>This is a stock set for the 4kq, known as the prokit 1504.140.
>a) is used in the front of the 4kq, and has a rate of 109x137 lbs
>(initial/max)
>
>b) has a single rate of 143lbs, and is used in the rear of the 4kq.
>
>Here's where it gets interesting.
>
>The CQ uses the prokit 1510.140, which consists of:
>
>A) 1510.001 (front)
>B) 1511.002 (rear)
>
>A) should look familiar - it's the rear 4kq spring, and is not
>progressive!
>
>B) is a different spring, and has a rate of 120x200.
>
>So, you might be wondering, why would you use a spring rated 
>at 143lbs in the front of a (heavier) CQ?
>
>The only thing I can think of is that the person at Eibach made
>a mistake and this spring is supposed to be on the rear.
>That would make sense, going from a type85 chassis to a type89
>that weighs more, you beef up the front springs from 109x137
>to 120x200.  So, I have a call into the guy at Eibach again to
>check this.
>
>Lastly, for those with 4000 nonq or CoupeGTs...
>Your car uses the prokit 1502.140, which consists of:
>C) 1510.001 front (this should look very familiar by now)
>D) 1502.002 rear
>
>This kit has been discontinued, but the rep said that they have 133
>pieces of D) (rears) so when they are able to run off a batch of
>front springs, the kits will become available again, until they
>sell out.
>
>Hope this helps some of you.  In a nutshell, unless I get a
>good reason to install these, I have a set of Eibachs for
>the 4kq for sale, and I might be looking for a used set of H&Rs
>for the CQ, or I may just bite the bullet and go coilover...
>
>| Dan |
>-- 
>Dan Simoes                                dans@ans.net
>Worldcom Advanced Networks 	http://coimbra.ans.net/dans.html
>100 Manhattanville Road                 (914) 701-5378 (voice)
>Purchase, NY 10577                      (914) 701-5310 (fax)
>
>
Best Regards,

John Karasaki
Portland, OR