semiller26

Ok here's the problem. I put the pro-kit springs on the back the drop looks nice put the front springs on the nose hardly dropped at all. WTF? Below are the before and after measurements taken with the car in relatively the same spot in the garage for fairly accurate results.

Before: After:
LF 27.5" 26.75"
RF 27.25" 26.675
LR 28.5" 26.5"
RR 28.875" 27"

I have checked twice to make sure the front springs are seated and indexed properly. They are. Could the C5 brakes which push the wheels out about 3/8 of an inch be causeing some of this? My other thought was the sway bar I have a 36mm up front could that be causing the front to sit high. i had a heck of a time getting the endlinks back on as there was less space between the arm and bar. Perhaps I need to shorten the endlinks. I will let the car sit with the endlinks off tomorrow to see if that fixes the problem.

Any other ideas on how I could fix this? If the sway bar thing doesn't work I'm gonna have to cut a coil I suppose.

Here's a pic.

<img src="http://memimage.cardomain.net/member_images/5/web/473000-473999/473585_65_full.jpg">

TheGreatJ

How long have the springs been on the car? New springs often take a few days to "settle in" to their permanent height. We had this issue on my friend's 4th gen when we put Eibach springs in his car....it looked odd when we got done but it settled about an inch in the front and ended up looking really good.

The brakes and swaybar shouldn't affect ride height at all. If they do, something is wrong.

Jon92TA

This comes up a lot. Usually it's because your old springs were well worn and sagging before you replaced them. The advertised drop is from factory height, so give the new springs some time before you think about cutting them.

Camaroguy18

thats actually a good drop.....doesnt look like my prokit at least (massivly low in the front, and big rake out back)

semiller26

I'm not sure the original springs were sagging before.
Here's the before pic.
It's an original California Car.

But then the 2" drop in the back makes no sense? The backs don't need to be indexed somehow also do they?

<img src="http://memimage.cardomain.net/member_images/5/web/473000-473999/473585_58_full.jpg">

Jon92TA

My friends 86 also had some taller than usual WS6 rear springs, so that may account for more rear drop.
Now that I can see the picture, It looks like its sitting pretty nice now.
Only once have I heard that the rears should be indexed with the bottom end coil of the rear spring should point forward.

semiller26

so if the sway bars arn't it should I wait a week to see if it will settle before I cut the fronts?

I want the nice rake I had before just lower.

As it is now the rake is the wrong way and it looks kinda funky(hard to see in pic 1)

KagA152

iTrader: (5)

heres a pic of my car, pro-kit in the front, the back are worn *** v6 springs and competition engineering shocks for the strip, the pro-kit actually sat a little bit lower. if you want to raise the rear, go get some new spring isolators for the rear from gm. they are taller, but will fit just the same

KagA152

iTrader: (5)

whoops, here

KagA152

iTrader: (5)

i think this pic might be with the pro-kit in the back

phoenix305

Some one want to explain what spring indexing is and how to do it?

semiller26

I was refering to locating the end of the spring in between the two holes on the A-arm. Is indexing the wrong term?


Hmm I may have to cut that coil. The back looks so cool I'd be tough to raise it back up so the front wouldn't look wierd. It just looks so much better lower I'd rather the front just match the back.

91Z28-350

Your back looks too low to be a Pro-Kit. Are you sure that's a Pro-Kit in the back? Do you have the isolators in? My Pro-Kit has a rake, similar to Camaroguy18.

semiller26

yup they're dark grey eibach springs. pro-kit.

Funny cus I though they were too low also.

91Z28-350

Dark Grey? Hmm, mine are black, but they are also over 7 years old. Do you have the number off the coil? Do you have the isolators on the top of the spring in the rear?

semiller26

their pretty much black and i'll see if I can find the number off the coil.

I'm kinda taking a break from workin' on it today.

18inchboyds

well looking at your pic, its a little dark in the pic. But the drop looks good to me , the car doesnt seem to be sitting high or anything , and isnt that a pretty close to prokit drop too . I mean it looks good the way it its , just drive it some and it might do something but i dont think mine ever settled .

91Z28-350

Yeah, you're right, the 2nd pic looks better. I don't know about the 2" drop, mine has a good rake to it. I think the gfx tricked my eyes so I looked closer at the wheel wells.

semiller26

If I cut the fronts what would be the best weapon for the job. I'm more concerned with not messing up the spring than getting it done quick.

91Z28-350

Die grinder and cut-off wheel. Take it slow. People have done it with a dremel, going slow as to not overheat the spring.

PHAT89TA

well i went to check out my height on my car with the pro-kit. my car is parked on a slightly uneven surface so its not a exact measurement but its is fairly close to it. keep in mind that i have still have my spare in the trunk and have couple of tools and parts that might possibly alter the height a little bit but i doubt it would and also my tire pressure is not up to par. i'll try to remeasure my car with the correct tire pressure and on an even surface.

left front-26.5
right front-26.5
left rear-27
right rear-27.25

heres a pix of my car.

semiller26

phat89ta

what kinda sway bars do you run?

PHAT89TA

my car has stock sway bar

semiller26

Well I cut 1/2 a coil off of the front springs today. Now it looks nice and level fronts are mow at 26". The half a coil dropped about another 1/2 inch. The car has the perfect stance now. Thanks for the tip guys.
<img src="http://memimage.cardomain.net/member_images/5/web/473000-473999/473585_66_full.jpg">

90tbi305

Do you guys have a panhard bar . If you dont have that ajustable thats the reson for your car being like that, you also need relocating brakets. And the eibach spring are only a 1.0" front 1.0" rear. -eric http://www.jegs.com/cgi-bin/ncommerc...23&prmenbr=361

PHAT89TA

now they look like sportlines. looks great though. how does it ride?

semiller26

the car has lakewood LCA and BMR rod end panhard bar. LCA brackets get welded on when the shop finishes with the Jaguar. I also ordered a Panhard bar relocation bracket which will get welded when it gets here.

Rides nice and tight not to bouncy or harsh. I think I may change the progressive rear springs out for some GW linear springs. I'm not sure I like the feel with them back their. The car doesn't feel as predictable around turns but I'm still getting used to it.

ditchbangr

iTrader: (1)

I just put on a set of the prokits and tokico hp shocks. My ride height is 26.75 fronts and 27 out back. My 91Z has 32K miles and the old struts would only come out about 1/3 of the way.

What a diffence it makes though no more scrapiing the air deflector on my driveway or tires when making a fast turn.

dual_88s

did anyone answer the question of "indexing the rear springs"

i don't see it, but i have been known to overlook things.....


I know that the bottom of both should be at the same "clock" position, but is there a proper palce for the top?

semiller26

nope never got an answer. I just put them in the same way the old ones were siting.

anyone have an answer to this one?

83 Crossfire TA

iTrader: (2)

Don’t worry about the bottom pigtails (although they will probably end up in the same spot anyway), the top pockets are not quite flat to the axis of the spring, just put the ends of the to top coils facing the same way. Usually, with the ends of the top coils towards the back the rear of the car will sit a little lower (1/2”) then they will with them towards the front of the spring pocket, and to either side is usually someplace in the middle.

383backinblack

milwaukee porta band.....

the 28v cordless variety.....best tool on earth

DuronClocker

iTrader: (1)

This is interesting. I'll have to check my springs orientation next time I'm under the car. I was trying to figure out why the right side sits higher than the left side in the rear. I don't have the 40lb spare tire/jack back there but I have a 10# nitrous bottle (25lbs when full) so the 15lb difference shouldn't make a noticeable difference. I may not have the tops pointed in the same direction, thanks.

83 Crossfire TA

iTrader: (2)

Just about anything that cuts steel well will work. I usually like an angle grinder with a cutting disk, but have done it with a die grinder, hacksaw, torch, plasma… (contrary to popular belief, you’d have to be a ham fisted moron to get multiple coils hot enough to ruin a spring with a cutting torch or plasma)

semiller26

i used my trusty work dremmel worked like a charm. just be sure to use the reinforced cut-off wheels.

That what I though after I got done cutting. Before I was wary that I'd screw up the springs. There was very little heat transfer with the dremmel.

roughskinjrz

ok this may be the right thread, im looking to lower my car, the front end sits up higher then the back, would i need lower springs for the front? or when i take the old ones will it all be even so that i can just put in the pro kit 1.0" front/back and it will look right? i dont know if i make sense or not, any help would be greatly appreciated.

PHAT89TA

roughskinjrz, when i first bought my car, my fronts sat higher than my rears. That was because it still had stock shocks/struts and springs and the rear were saggin a bit. After replacing them with kyb's and the pro-kit i am very happy with the stance it gave me, as u could see in the pics above.

roughskinjrz

yeah your car sits VERY NICE, hopefully that will fix my problem
thanks alot

PHAT89TA

roughskins i recommend, when changing ur springs u should also change ur shocks/struts also. kyb is a very good shock/struts for the money.

roughskinjrz

thats what im doing... kyb and eibach pro kit, or maybe go more then 1.0 maybe 2.0

TKO500

iTrader: (5)

I installed the Eibach sportlines on my IROC. Are you all leaving the rubber isolaters on the top of the rear springs? I left them in there. My rear end sits higher for sure.

I didnt measure the before and after ride height. Regardless the sportlines are suppose to drop the front 1.4 and the rear 1.6 I think. I definately got 1.4 up front but I am not sure about 1.6 in the rear.

I'll have to wait and see how it sits after I drive it. I only put about 30 miles on it since they were installed.

crazyL

whats better for lowering?

jagevileye21

iTrader: (3)

i was wondering if anyone every used these springs,

http://www.hawksthirdgenparts.com/in...?v=1&pid=27928

if so how do they compare to Eibach's prokit? What would be my best bet these or the Eibach?

Thanks for the help,

JAG

Zepher

iTrader: (1)

I've got the Sportlines on my Formula and it looks more like a prokit to me,