Lessons learned, ..regarding Koni Sport adjustables... Options

[Krieger]

There should be a clip under the lower spring mount you can move down.

The threaded coil-over collar is down as far as it can go...no further down

But did you see from the pic, there is a snap ring on the shock itself. You have to remove everything from the shock to get to it. Spring, threaded collar, etc. If your setup came all assembled, you wouldn't be able to see this clip.

I think the threaded collars can be flipped as well.

IIRC my Ground Control threaded collars only went on one way. I thought of cutting the ID of the collar further down, but decided to have a machinist cut two or three more grooves into the shock body to get the car lower. They were the same depth and spacing as the others. I was running 225# springs, but recently switched to 200#.

[ChrisFoley]

8" springs is the only way to get the ride height low enough.
The top perch can be drilled out to float on the shock shaft.
That might allow the threaded collar to screw on a bit farther, thus allowing the nut to go on fully.

[McMark]

I pulled apart a spare set of Koni 8241 1050SPORT shocks with Ground Control adjustable springs to see exactly what was going on here. I tried to include a lot of pictures here so you can compare what I'm seeing with yours.

There is a 'ridge' section on the shock shaft that the spring hat is supposed to seat on. I was able to tighten the top collar-nut with the hat catching an edge and not seating correctly. And I included a picture of how much thread is showing when that problem happens. Looks quite a lot like what you're seeing.

It also took a bit of effort to knock the hat off the 'ridge' when I first disassembled it. So if the machining on the hat/ridge isn't quite matched, your hat may not be seating all the way. Check that the top of the 'ridge' is flush with the hat (see picture).

[Paragon]

The Koni 8641-1077 Sport insert for the front 914 strut will work on Boge struts but not Koni housings. If you have Koni housings you'll need the 911 insert 8641-1039 Sport and this gland nut:

http://www.paragon-products.com/Koni-Gland...25.01.011.1.htm


The 911 insert is shaped a bit differently and will drop right in the Koni housing. We do this stuff all the time.

[Gearup]

The Koni 8641-1077 Sport insert for the front 914 strut will work on Boge struts but not Koni housings. If you have Koni housings you'll need the 911 insert 8641-1039 Sport and this gland nut:

http://www.paragon-products.com/Koni-Gland...25.01.011.1.htm


The 911 insert is shaped a bit differently and will drop right in the Koni housing. We do this stuff all the time.

Ok, so I was just about to purchase the Ground control setup for the rears with bilstein shocks. GC has told me to go with 10 inch springs. I want to make sure I am able to lower my GT to the ride heights I commonly see pictured on this website. Can someone please confirm that for the bilsteins the 10 inch springs are the way to go? Thank You, Brett

[rhodyguy]

I bought my package from paragon via a group buy BR put together iirc. I also remember having to be specific about the strut assem on the car. Such as which stock, 911, what ever. I've have seen a few threads similar to this one and I could never understand why. Mine went on right out of the boxes with no hassles other than installing the threaded collars upside down. As Jeff noted, there was step/land on one end that rests on the adj clip. The clip is enclosed by the collar when done right.

[Cracker]

My GC springs are 8" tall...

T

[naro914]

Couple things to consider: with Bilsteins, you have more adjustability than with Koni because there are more "rings"'on the shock to rest the collar, meaning you can go a little lower.
The spring rate also factors in..:stiffer springs will not compress as much, leaving it car riding higher.
We have Koni Adjustible with 8" 225 lb springs. I did noticed that the lowest I could get the collar to sit on the Koni is higher than the perches were set on the Bilsteins I took off, so you may be ok with the 10" springs if you can get the collar low enough...