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Had Sportlines put in yesterday. The rear springs rumble and sound like they're bending and whining (that's how it sounds) when I start the car, go slow, or esp. when turning slow.

The shop guy sprayed some WD40 on it and it's less noticeable now, but he'll be checking with Eibach tomorrow to investigate.

I wonder if that's what you guys call the setting stage. I read on the Eibach site that their springs don't need to set into a height (preset at the factory), but may need time to settle in the housing...

Also, aside from the theoretical point of view, has anyone with Sportlines experienced any camber problem? Friend of mine suggested getting the camber kit even if I don't need it so that I can get a better suspension performance, is this true? If so, does a camber kit still require an alignment?

Thx.

 
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I don't know about the noise in the rears but the front noise may be because the spring perch is moving without the spring but eventually it will settle in the right position. I had the noise for awhile until I got my Koni's, all the sound went away. Check the plastic sleeves also, I think they are spose to be up top. After you lower a car you should get a aligment but I was told that I did not need a camber kit. The shop that installed my springs and shocks told me that our cars are made to have some positive or negative camber in front or rear. They said that if you had perfect camber the car will handle funny but your tires will last longer and wear evenly. So if you want long lasting tires than get a camber kit but if you are all out for best handling don't get a camber kit since the sportlines does not drop more than 2". Make sure you do get a aligment though. You can adjust some camber in our cars also to a certain extent.

 
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I get a lot of rattling out of the rears on even small bumps It's gotten worse over the last couple weeks (I've had them on for about 3 months and 3.5k miles). I'll be heading back to the shop next week to have them take a look.

I noticed my plastic sleeves sit on the bottom 1/4 of the spring. Anyone know if that would cause the excessive noise? Whats the point of the sleeve being at the top?

 
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Well, the sound went away this morning. It was still there somewhat after the WD40 last night, but this morning I did some slow driving and turning on purpose and didn't sense the noise. Still a bit of a low grunt when going over bumps, but I'm thinking that it may just be the sound of the new springs...

Regardless my upgrade shop will be calling Eibach to clarify the whole issue, as they don't want all their customers with new Eibachs to complain. I'll also see if I can arrange for an alignment there or an alignment at my body shop this weekend. I'll keep you guys posted about anything important Eibach says.

As for the camber kit, with your advise and what my impression is, I'll keep my stock tires until next spring, at which time I'll do the whole works and do new shocks and a camber kit and 17s.

 
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when i first put on sportlines after prokits, i noticed a weird noise in the rear myself. i thought it was the break in procedure myself..but it kept makin that dam noise. so i had this notion that it might be the bushing beating on shocks, so i took everything out again and trimmed the bushing about an inch or so more .. after i put everything back, what'da ya know...no more weird noises. don't know if this is whats happening with yours, but thats my experience.. and i 'm stickin to it. BTW the sportline instructions told me to cut ..i believe 20mm.. but i think you'll have to cut more than that. good luck

 
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If you ask me, camber kits are a must when lowering a car if it is beyond 1" in the rear. I put prokit springs on my sedan and the rear camber was at -2.5 degrees on each side. The front was w/i spec. I just put neuspeed sports in alongs with front and rear camber kits. The car rides better and handles better after having an alignment done. Camber is what helps keep the tire patch in contact with the road as you go around a turn and the car leans. If you already have a couple degrees of negative camber, when you go around a turn or put weight in the car, the wheels will lean even more negative and you loose part of the tire's contact with the pavement. Optimal settings would only be found by experimenting on a race track. Toe comes into play as well. If you really want to learn about the suspension and toe, caster, camber, etc., buy an r/c car made for racing. You can make all the different adjustments and see exactly how they affect the car's handling.

 
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jack up your car, and twist the plastic sleves up, your springs are rubbing on themselves, the sleve stops the cluncking.

 
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Thx for the info guys. I think this is what's happening, as it's also what the shop guy told me. I'll be bringing it in there next Wed to have him adjust the sleeves and such. The noise only happens now when turning slow (like out of a parking spot), so it's just a bit unsettling.

 
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Anyone have any idea how far up? first or second coil?

 
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Actually, my shop guy called Eibach. The engineer said it's because of the base of the springs. Since the springs are designed to work with aftermarket shocks that are much stiffer than the stock shocks, the stock shocks compress like mad on the shorten springs and cause the base of the springs to rub with the bottom of the strut (something like that, that's what I understood from his explanation). That's why if you spray it with WD40 or grease it it'll help for a while, less rubbing.

Anyway, Eibach suggested the shop guy to do a custom base for the springs. So it's all good. I'm having Koni's put in at the same time, so the ride should become great by the end of this week.... Can't wait!