90q coil-over kits, spring rates

[Brady Moffatt]

Hi Jim/All,

I'm no suspension engineer, but doesn't it seem strange that a correct
Eibach Prokit bottoms out on the _street_? Hell, _stock_ springs shouldn't
bottom on the street!

It is the spring that controls the amount of suspension travel due to an
input (bump, cornering). The shock only damps the motion afterwards. Right?

So, bottoming  is due to the spring exclusively. Wallowing would be due to
the shock.

All of this means that your springs are too short or too weak. You're
addressing the "too-weak" option. What about the other one? Is it possible
that you have the now NLA 4kq Eibachs by mistake? (which I understand are
shorter than 90q springs) I suppose a shock with too short travel could do
it too, but that would be another case of possible incorrect parts.

Has anyone else had trouble with Eibachs bottoming out? Boge TurboGas get
rave reviews on this list when paired with H&R springs, so it's probably not
their fault...

Something fishy here, IMHO.

Of course, coilovers and Konis are the ultimate!

Cheers,
Brady Moffatt
Montreal, Quebec, Canada
83 UrQuattro with 51,000 miles
86 4ksq with 310,000km
86 4ksq parts car
72 Datsun 240Z with 180,000 miles
92 VW Golf with 200,000km FOR SALE
in middle stages of quattrosis accumulatus

----- Original Message -----
From: "Jim Green" <jeg1976 at yahoo.com>
<snip>
> Great, thanks for the tips.  I'll check on the I.D.
> for sure.  Here's my ultimate goal: use coil-overs,
> Koni's and some Delrin bushings to firm up the
> suspension and reduce the bottoming out I'm getting
> from the Eibach Pro-Kit/Boge combo.  I also plan on
> tracking the car this summer, but the good handling on
> the street is a bigger concern.  Anyone know if the
> 240's are still stiffer that the pro-kit springs?
>
> =====
> Jim Green
> '89 90tq 034EFI, Haltech IG5
> http://www.geocities.com/jeg1976/car_home.html


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