Suspension and Chassis Questions about your suspension? Need chassis advice?

Anyone cut the eibach pro rear springs to even the stance out?

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Old Oct 18, 2005 | 08:37 PM
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
Anyone cut the eibach pro rear springs to even the stance out?

Cut them, take out the isolators, whatever you guys have done to even out the stance......
Attached Thumbnails Anyone cut the eibach pro rear springs to even the stance out?-img_0266.jpg  
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Old Oct 18, 2005 | 08:38 PM
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
the front is perfect, i just wish eibach had compensated for the weigh difference and made them accordingly.
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Old Oct 18, 2005 | 08:56 PM
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
My rear is a little high as well, im also considering knocking a half coil off the rears to see where that gets me.
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Old Oct 18, 2005 | 08:59 PM
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
im tempted to try myself, although im worried about the performance effect it might have. im waiting for someone to tell me their experiences before i try anything i regret.
kent
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Old Oct 19, 2005 | 06:04 PM
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
c'mon someone out there has done something with the pro kits stance.......
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Old Oct 19, 2005 | 09:08 PM
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From: Weyauwega, WI
Car: 86 Camaro
Engine: none
Transmission: none
Axle/Gears: GT4, 3:73s
it looks like a few of the guys on here that get the prokit have the same problem

sorry im not much of help but i just wanted to say daammmnn nice car
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Old Oct 19, 2005 | 10:30 PM
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z28 NyC's Avatar
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From: Queens, Ny
Car: 1986 Camaro z28
Engine: 305 tpi/light mods
Transmission: 700r4/ B&M mega shifter
I thought pro kits were supposed to be 1' lower all around? looking at ur pic it looks like you have the sportlines which are lower in the front givingthe car a rake.
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Old Oct 20, 2005 | 08:22 PM
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
I removed the rear isolator.



http://www.cecoatings.com/images/Car...TA/SSrims3.jpg
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Old Oct 21, 2005 | 01:02 PM
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From: Lowell, MA
Car: 91 Formula, 95 GT
Engine: 5.7, 5.0
Transmission: T5, T5
Axle/Gears: 3.42:1, ???
Originally posted by TPl383
I removed the rear isolator.
notice any adverse effects?
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Old Oct 21, 2005 | 04:04 PM
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take your stock rear springs and cut about 1/2-2/3 of a coil off of it and reinstall it with a piece of heater hose on the last coil instead of the spring isolator, the ride height will be just about right and you get rid of the stupid progressive rate rear springs...
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Old Oct 21, 2005 | 06:04 PM
  #11  
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
so put the stock springs back on the rear and cut some coil off?
what exactly does progressive rate mean? i never knew
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Old Oct 22, 2005 | 11:39 AM
  #12  
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From: Houston Texas
Car: 1989 IROC Z-28
Engine: L98 350--modified
Transmission: 700 R4--modified
Axle/Gears: 4:10 Posi
Originally posted by k's89rs
so put the stock springs back on the rear and cut some coil off?
what exactly does progressive rate mean? i never knew
Softer the first inch or so of compression and it gets stiffer with more compression--like its a stiffer spring. Better ride on regular roads , but higher spring rate kicks in when needed.

If U cut the spring--try about 1/2 coil--be careful how u cut it--without heat is the best way. If U use a torch, find a bucket--fill with water to right below where U are going to cut it, to keep it cool, so it does not heat rest of spring and remove spring temper.
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Old Oct 22, 2005 | 01:25 PM
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
ahhh zap to the rescue! i cant wait to come down there next month! you guys havent seen my car since i got the rims and suspension done. also working on my motor, i doubt that will be in before i come down though.

i need to fix that stance, and im going to do that when i have my rearend out to put a posi and gears in.
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Old Oct 22, 2005 | 01:36 PM
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From: Houston Texas
Car: 1989 IROC Z-28
Engine: L98 350--modified
Transmission: 700 R4--modified
Axle/Gears: 4:10 Posi
Originally posted by k's89rs
ahhh zap to the rescue! i cant wait to come down there next month! you guys havent seen my car since i got the rims and suspension done. also working on my motor, i doubt that will be in before i come down though.

i need to fix that stance, and im going to do that when i have my rearend out to put a posi and gears in.
Have U deceided what posi and /or gears/ratio?
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Old Oct 22, 2005 | 01:38 PM
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
since my motor is going to be pretty mild im probably going to go with an auburn posi and 3.55 gears. im going to do a 5-speed swap too.
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Old Oct 23, 2005 | 08:48 AM
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Originally posted by 91formulaSS
notice any adverse effects?
Nope, Ive done this with my camaro also. put a small piece of hose on the end like I do.
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Old Oct 29, 2005 | 01:50 PM
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From: south san francisco
Car: 84 camaro z28
Engine: 305 H.O.
Transmission: 5 speed
I've cut my prokit springs about 1 coil and it sits a little lower, but the problem is after the spring is back in and the car is jack up on a hoist for work, the springs actually sits loose and before you lower the car, you got to make sure the spring are sitting correctlly.
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Old Oct 29, 2005 | 09:07 PM
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I keep telling everyone that progressive rear coils is the way to go ona 3rd gen. Nobodies listening and still calling them stupid.
Its all about how you setup the rear suspension and what shocks you use.
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Old Oct 30, 2005 | 05:44 PM
  #19  
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From: Texas
Car: 1983 Z28
Engine: GMPP 350, 92 TPI
Transmission: T-5
Axle/Gears: Auburn gear posi, 3.08
Really guys, they are Camaros, they are supposed to be raked a little
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Old Nov 1, 2005 | 03:49 PM
  #20  
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From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
I took out the isolators and it sat down pretty nice. There can be adverse effects. Start throwing your car hard into corners and you may discover them.
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Old Nov 1, 2005 | 03:55 PM
  #21  
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From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
Here's a crappy picture, but you get the idea.
Attached Thumbnails Anyone cut the eibach pro rear springs to even the stance out?-miroc2.jpg  
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Old Nov 1, 2005 | 04:34 PM
  #22  
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Originally posted by redliterunner
I took out the isolators and it sat down pretty nice. There can be adverse effects. Start throwing your car hard into corners and you may discover them.
you know, others have posted this in the other thread, and I’ll say it here, I don’t believe that your “adverse effects” have anything to do with removing the isolators, I think there is something else wrong.

I’ve done it on 4 cars of my own as well as a number of friend’s cars and there are dozens of people on here and on other boards that have done it with no issues, and there just isn’t anything that can move around there that you change with the isolators and without to cause your issues.

One thing that I do suggest is to make sure that you have some heater hose seated on the last coil to make sure it stays in the pocket… to keep any noise down.
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Old Nov 1, 2005 | 05:18 PM
  #23  
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From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
I agree Crossfire, and I hope by now that you know I respect your experience and knowledge on the suspension topic. Removing the isolator did not, in and of itself, cause any problems.

However I am convinced that the reduction in clearace, between the axle housing and frame snubbers, resulting from lowering, directly caused the sudden "HOLY CRAP" oversteer glitch that I was having. And the progressive rate Eibachs would only aggravate the problem, if you think about it.

Cutting about .75" off each snubber, with no other change, appears to have completely solved the problem.

I can only speak for my own car and only suggested that some guys MAY experience a problem like mine.

Oh, and expect your sway bar geometry to be off after lowering as well. Nothing major, but it all makes a difference.
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Old Nov 6, 2005 | 12:54 AM
  #24  
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From: Colorado
Car: 91' Camaro RS
Engine: LO3 305
Transmission: Built 700R-4
im just surprised you guys can put lowering springs on your cars much less cut them too. i have problems going over pebbles it seems lol and im running stock RS springs and shocks......i think.......
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Old Nov 6, 2005 | 07:54 PM
  #25  
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
its not fun running around with a lowered thirdgen. especially a camaro with the chin spoiler, but the advantages are worth it. with a good set of bars, springs, shocks, and bushings your ride will handle alot better. there are times (according to my g-tech) that i will do .8 g's on the street without sticky tires. thats impressive for a car with as long of a wheelbase as ours.
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Old Nov 6, 2005 | 07:57 PM
  #26  
k's89rs's Avatar
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
so i think im going to take out the isolators and put a dead body in the back! that way i wont have to do any cutting. thanks everyone for your help. redliterunner where in fort worth are you?
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Old Nov 6, 2005 | 09:37 PM
  #27  
redliterunner's Avatar
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From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
Southwest part of town. Ever go over to Hooters on SW boulevard? I haven't but I know there's an F-body group that meets there occasionally.
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Old Nov 7, 2005 | 10:05 AM
  #28  
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
I know it's not the Pro Kit, but here is how mine sits with the Sportlines and the isolators installed,
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Old Nov 7, 2005 | 09:17 PM
  #29  
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From: denton, tx
Car: 89 rs, bmw 325 is
Engine: 360 (.060) 2.5L inline six
Transmission: 700r4, 5-speed
Axle/Gears: 9 bolt 3.08 3.? limited slip
redliterunner i live off of bryant irvin, right behind the sams club. we should get together and hang out.
zepher THAT IS A GOOD LOOKING TRANS AM!!!! wow sportlines! must be nice not to have the front spoiler, because if i had those springs on my car i wouldnt have one!
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