Thread: B13 CSK Research Thread - OE diameter springs

I guess that depends on which springs and spacers you use.

Spacers??

I am using hypercoil springs..

See this thread:

http://www.sr20-forum.com/suspension/36862-so-looks-very-wrong.html

It's about time to start my B13 rear CSK project using B13 front OEM housings, front OEM dust boots, Koni Bump Stops, Koni Yellow B15 Spec V inserts (PN listed earlier in thread)

depth the strut would go into the OE housing without shortening:


depth the strut would go into the OE housing with the CSK process:


Koni Bump Stops on the ends, OEM in the middle:

also worth noting, in THE ultimate suspension thread that Shawn B put together for us (great friggin thread by the way) they have these pics (w/out ghostbusters sign) as a "how-to" install your koni bump stop:






IMO, this is NOT how it is done properly because you are essentially "doubling up" on bump stops with the above setup.. (unless Isfahan pulled the OEM bump stop and didn't fit the Koni bump stop inside the OE dust boot for some reason)

The whole reason for using the B13 OEM front dust boots (even in the rear) is that you can remove the OE bump stop (on right in pic below) and replace it with the Koni Bump stop (in the middle on pic below)

the boot on the left is a B13 OE front dust boot without any bump stop. It turns out, this is what Isfahan was doing with those original pics.. (which i modified with read ghostbusters emblem) which doesnt' double up the bump stops anymore. But with this setup, the koni bump stop material is not directly hitting the strut. Instead the (relatively) thin rubber top of the dust boot would serve as first line of protection in a hard bump. The conical shape of the inside of the koni bump stop wouldn't get used, nor its "special" material that cost $75 for all 4 corners..

here is an "aerial" view of the bottom of the front bump stops:

left to right:
no bump stop - koni bump stop - OEM bump stop

Rears of the b14? What can we do matt? What does CSK mean anyway?

B14's have shocks in the rear not struts. Only thing you can do to gain some suspension travel is get some Motivational style mounts.

CSK stands for Custom Shortened Koni's.

do you have a sand blaster at the shop Ryan? I need to sand blast my OEM housings and repaint them..

you can use a B13 NX2k rear strut housing but you need a nice 2-3" spacer in between the koni and stock strut housing. the strut needs to be spaced up cause the strut is longer in the rear.

is there a difference between the NX2k rear strut housing and the B13 SE-R rear strut housing? i thought they were exactly the same.. if not, I should change the title to say B13 SE-R..

i already have four B13 SE-R spare front housings ....