How close to the spring is the widest tire that one can fit under a 928's fenders?If they are less than 1/2 ", the dislodged spring (sticking out half an inch) can rub against it or maybe even cut it, can't it? You can't tell me that a lose spring is OK. Also, I wasn't commetning on the cutting but the fact that you guys are running a spring that is loose in the back. Yes, I'm well aware (as I said in my last sentence) that we have coilovers and it's not the same as the Mustangs but a loose spring is a loose spring, regardless of the type of suspension the car has and is dangerous.

 

one coil should do the trick.

mk

 

the spring cant move as you are suggesting. there is no clearance issue, the spring is nowhere near the tire and the amount of movement of even a loose fitting spring is only a fraction of an inch laterally. There is no issues here at all . no chance of the tire hitting or rubbing the spring . This is not a mustang configuration as you said. I guess I am not explaining the "looseness " of the spring in the rear. it doesnt have to be loose. It can be perfectly tight. two or three more turns of the adjusters and there is a few mm of slack in the springs. under droop there can be a slight space up top, or if they stick up top, there can be a space on bottom. the space is small, and the spring cannot shift side to side an endanger anything.

mk

 

With a hacksaw (and a few blades), I took out 1 1/2 coils out of the fronts. Had to do something, the ride height was way out of whack. The coils where stock (afaik) with a blue mark on them.

I used coil compressors to take the tension off, and then cut 1 1/2 off the bottom. Then moving things around, I cut the 1 1/2 in half so I could remove clearing the shocks.

It took a while, but I dreaded removing the front a-arms to get the coilovers out.

The spring perches were all the way down. What's an old hot rodder to do?

In the pictures, both are with the adjusters all the way down. And with the suspension setted.

I now have room to raise if necessary. (Thanks Mark.)

 

Dan,
Can you post a side view? I'm looking to do this to my '79. I was going to cut just one coil, but am curious to see what 1.5 looks like. This is on a track car, so it can be low.

 

i'll post one tomorrow. got to take it first

 

!

Thats great. See I told you it would be ok.

hack saw? man, what an animal! I think the dremel might have been a little easier, but with out air tools, what is a guy to do! If you do .5 coils , you dont have to make the second cut, but it looks like it all worked out. love to see it when it settles.

1.5coils! wow, thats brave. maybe 1.5 out of stock springs is like 1 coil out of the eibachs.

be careful with the rears a little less than 1 coil might be fine.

Are those the post cut pictures?? still pretty high.

mk

 

the second pic is post cut. I will post some side view before and after soon as well as measurements.

I cut 1 1/2 because the factory mearsurement method showed that I was very high. And there was a good 4" from the top of the tire to the bottom of the wheel arch. (Now it's about 2 - 2 1/2.)

I was worried about the spring's increased stiffness might negate part of the cut and I had all the adjustment range on the perches left to go. So I thought what the hell, go for 1 1/2 coils.

I took it out several times Saturday and Sunday and it settled in really well.

I can tell the fronts are much stiffer. But with the Bilstiens, I think it will be okay.

I havent put on the rear shocks yet (tire of working on it, need to drive it) and I expect I'll see if I can cut 1/2 or so off to stiffen em up a bit.

I've put in the later larger diameter front anti roll bar. Need to install the same for the rear.

With this and new upper a-arm bushings and ball joints, I'll be getting the string and level out next weekend for a quick alignment.

cheers!

 

Looks great.

 

Here come some before and afters.

First the good news, with the coils cut the same and both brackets adjusted all the way down, both sides measure the same height.

From the bottom of the A-arm bracket to the ground, I get 132mm on each side.

Based on the center of my wheel being 300mm, and that the wheel center to bracket bottom is supposed to be 113 +/- 10, and my calculations showing 168 (300-132), that means that I'm 45mm (168-123) too low (about 1 3/4").

So, I'll be raising it a bit.

BEWARE! the stock nonadjustable perch height was lower on mine vs the Bilstein adjustables all the way down

 

Hi Mark,

sounds interesting.
I have the same issue with my Koni/Eibach-Setup.
I also have two fingers space front and rear with the adjusters at the lowest position.
To summarize this cutting out 1 coil front + rear at the bottom of the spring and adjusting the perch will do the trick, right ?

Can you post pictures ,please ?

Btw:
I followed your instructions for the "big brake for less kit".
I used new drilled OEM 993 Turbo discs, four height adapters and prepared the calipers acc. to the larger disc diameter.
Combined that with braided lines and Yellowstuff pads (Zimmermann drilled discs + Yellowstuff pads in the rear).
Result: Night and day difference, means very sensible pedal feel combined with
awesome stopping power. Was on the Salzburgring lately and tried it under
highspeed conditions -> absolutelly no issues at all -> highly recommendable !

If Rennlist would have a "Best Mod for the Money - Award", this might be a hot candidate !

Cheers and thanks for your useful contributions to this forum. Keep on !

Stefan

...and for all the doubters: First try yourself then doubt :-) .