I have the pro-kit and tokico HPs. The ride sucks...and well Thats probably half do to having no interior to deaden the resonance and my choice of parts....but thats not whats bothering me.

Look at this stance...My rear hasnt dropped at all..actually i think its a little higher than it was.

How much spring should I chop?

 

the front looks good

the rear maybe try taking out the isolators and use some heater hose and see what that looks like.

 

I seriously think Eibach made a change in spring rates on the Prokit.....this is my prokit

 

What size tire are you running? Those tires seem thin to me which will give you more fender gap. Also, stock springs will sag over time and it is common for lowering springs to actually raise cars. If you want lower I would double check that the fronts are indexed correctly and try removing the rear isolators in favor of some hose wrapped around the top coil.

EDIT: Your sig says you are running 25" tall tires so that should be enough tire. The front slook okay to me but the rear is sitting too high. I would double check how you have those springs in there and make sure the upper portion is seated correctly.

As for the harsh ride, well you will have that. You just drastically increased the spring rate. Adding a set of matched shocks and struts will help that out a bit but it will still ride harsh.

 

I plan on removing and reinstalling the rears as soon as it warms up to check and see if anything is bound up...but i dont see how the rear would be messed up...

If it dont come down theyre getting cut...

 

I love the way the front of your car sits..the rear is still too high for me though :-\

 

yea to be honest I dont see many sportline kits that have a front this low....I thought Eibach gave me some whack *** kit.....it's gonna be ditched for airride soon enough so Im not too worried about it

 

Yours is alot lower than mine with the Prokit

 

Your's is a lot lower than mine also. A note for the guy that started this post to remember the position of the springs will make a difference also. Try turning the springs and see if that helps any. I know on the fronts it can make a big difference.

 

well heres an pic of my car that i used to have. THe car sits on eibach pro-kit with the stock isolators on. Try to measure ur height. I measured them from the street to the highest arch on my fender. My measurements are:
left front-26.5
right front-26.5
left rear-27
right rear-27.25

 

the problem isn't your car its the pro-kit it just sucks its the worrest thing i ever spent money on for my car yeah i got close to an inch drop but the handling went to crap big time if you want to cut the springs i would use the stock ones in the rear to start off try cutting a half a coil see how that looks and feels.

 

you apparently have other worn out suspension products then, as ive never heard anyone say that about the Pro-Kit, IMO, they are the only springs if you don't want a drasticaly lowered vehicle.

 

maybe its just my car thats not ment to have eibachs on it b/c i think it was set up to work the best with the stock springs it did come with all the factory 1le optins you could get in 88

 

blyth18md:
taking out the rear isolators will get rid of that rake.
but you'll have about the same gap as the front..

id just sell the springs and buy some aftermarket ones. not a kit, but aftermarket springs.

 

The factory front BZWs and rear NNNs (Stock springs on my 90 IROC) will give you handling and a good ride.

I didnt the like the prokit either. My ride went to hell and the car didnt handle any better imo. Just felt stiffer it dropped the car about an inch in the front the rears stayed about the same. I sold them and reinstalled the factory BZWs and NNNs. Theres a reason the factory went with the springs they did. A GOOD RIDE AND HANDLING. I guess im getting old.

IM going to cut 1/4 to 1/2 coil off the front and call it a day. I dont want to do this really because the rate will increase slightly. But after installing lighter parts in front it sits a little to high. the back is just right.

 

well said

 

I would consider the stock springs, but they are long gone. So i have to work with what i have

 

I've got the sportlines on my 88 formula and it sits very nice.