B13 spring stock sizes

[John A. Heer]

P.S. If you want a FSM for a 1991, let me know. You can have it for
the cost of shipping.

John Heer


On 5/23/09, wc701lists at bellsouth.net <wc701lists at bellsouth.net> wrote:
> Charlie Guthrie wrote:
>> We are trying to re-engineer the B13 suspension for Rally-Cross. At
>> .... We need:
>> 1.  The number of active coils (total number of turns that excludes the
>> flattened coil at the top) (fractions of a turn count, too)(Heck, if you
>> just count the total number of turns we'll make the necessary
>> assumptions).
>> 2.  The uncompressed spring height.
>> 3.  The spring wire diameter (preferably measured with a caliper)
>> 4.  The outside diameter of the spring.
>
> Do you have an FSM, cause it's all in there in the specs section.  Oh
> shhot, I'll just grab mine.  Note, there are lots of subtly different
> springs for SR/GA, Sentra/NX, 5spd/AT, 2/4dr, etc.  For a 1992 5spd SE-R:
>
> 		Front			Rear
> Wire dia	0.484"			0.457
> Coil dia	5.12"			5.12
> Height		14.17"			12.54
> Spring const.	123			112	(in/lbs)
> ID color	"orangex2,light bluex1"		"light bluex2,whitex1"
>
>> Since someone will undoubtedly want to know: the HyperCoils are 5.65"
>> outside diameter, 0.520 wire diameter, and have 6 coils total with 4
>> active coils using two different helix angles. The lower two coils  give
>> a reasonable ride over slight pavement imperfections. After that the
>> lower coils go solid and the two upper coils come into play and they are
>> stiff...wheeeee. That makes for a great drive to the track set-up, but
>> on dirt we need lots of weight transfer and gradual loading.
>
> Sounds like you already have it, but I have a detailed doc on the
> Hypercos I'll send ya separately.
>
> -Wayne Cox
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