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Billsteins/Eibachs. Good setup?

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Old Mar 16, 2005 | 09:42 PM
  #1  
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From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
Billsteins/Eibachs. Good setup?

Picked up a Pro Kit and some Eibachs for the WS6. Wondering how many guys are running this setup and how happy are you with it? Under/Oversteer? The car will still have the WS6 swaybars on it. How's the ride.....like a farmwagon? lol
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Old Mar 16, 2005 | 11:05 PM
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From: michigan
did you get the hd's as they are better valved for the pro-kit.
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Old Mar 17, 2005 | 08:17 PM
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From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
bought them used, not sure.
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Old Mar 17, 2005 | 08:58 PM
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From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
Found out they're the Sports, firmer than the HD's.
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Old Mar 18, 2005 | 08:59 AM
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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, ???
Do you know for a fact that the Sports are firmer than the HD's? I know for sure that the struts are the same in both kits (same part number) I thought the only difference was the travel of the piston in the shock. for lowered cars and all.
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Old Mar 18, 2005 | 03:09 PM
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From: Kaneohe,HI
Car: 89 RS
Engine: 383 in building process
Transmission: 700r4
Originally posted by 91formulaSS
Do you know for a fact that the Sports are firmer than the HD's? I know for sure that the struts are the same in both kits (same part number) I thought the only difference was the travel of the piston in the shock. for lowered cars and all.
The front struts are the same. It's the rear shocks that are different between the HDs & Sports.
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Old Mar 18, 2005 | 03:13 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 acescarrsRS
The front struts are the same. It's the rear shocks that are different between the HDs & Sports.
But what is the difference?
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Old Mar 18, 2005 | 04:04 PM
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From: michigan
Originally posted by 91formulaSS
Do you know for a fact that the Sports are firmer than the HD's? I know for sure that the struts are the same in both kits (same part number) I thought the only difference was the travel of the piston in the shock. for lowered cars and all.
the more lowered you are then you'll want the sports. the hd's are perfect for a pro-kit 1.5" from stock drop. the sports are great for the sportline. reguardless if you bought them used you saved money so either are better then 95% of the other options out there.
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Old Mar 19, 2005 | 07:39 PM
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From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
Well they ended up being HD's. Went to pick them up and throw them on the car and the part# ends in HD. O well, better since I have the pro kit. Rides real well, but the springs didn't drop the car at all. Noticed a lot of plow from the front end too, so the deal threw the car out of balance.


Last edited by NastyL98_T/A; Mar 19, 2005 at 09:12 PM.
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Old Mar 19, 2005 | 08:57 PM
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From: Memphis, TN
Car: 89 IROC-Z / 11 2500 Sierra
Engine: 5.7 & Duramax
Transmission: 700r4
I just installed Ebiach Sportline springs(new) and bilstien struts. Along with ES bushings and entire steering linkage minus Pit arm. Lower ***** even. Did all ES bushings in Rear and fab'd a new pan bar. And can I say...HOLY CRAP... This thing rides like a roller coaster. It doesn't roll at all when I take corners. If I go slow you can feel road. Its been done for 2 days now and I just got a FEA. It dropped my 89 Z about 1.5 inches like it should have. I like this setup very much and I think its a great setup.

I only have 1 prob that maybe someone can help with.....
After my FEA when I turn well at slow speeds like i'm turning right from stop sign. If I turn between staight and all the way it seems to bind up and jump. Feels like 4x4 with front locked in and trying to turn sharp. Is this normal....??? Has anyone had this problem...??
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Old Mar 20, 2005 | 05:43 AM
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From: Charlotte, NC
Car: 91 Firebird, white
Engine: L03 :(
Transmission: 700R4
Axle/Gears: 4th gen, 3.23
Originally posted by NastyL98_T/A
Rides real well, but the springs didn't drop the car at all.
Could be the fact that your old shocks were probably very worn out and were causing the car to sag (since they were incapacitated to hold it up). So when you put the new shocks on, it raised the car above its previous height, and then the springs dropped it again...so it kind of evened out. If you get my drift.
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Old Mar 20, 2005 | 06:05 AM
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From: New Mexico
Car: 87 Firebird,
Engine: lq4
Transmission: gto t56 (mn12)
Im getting rid of the same setup you have. I have the HDs and the eibach pro kit. Worst purchase of all time in my opinion. Why pay 300+ bucks for something thats going to make the handling and the ride worse. I was sucked into the springs make handling better bs that they advertise. I am pulling them out this weekend and trying to sell them. If you want a lowered ride great! They work good for that but all stiffer springs do is make a stiffer ride. Increasing the spring rate on these firebirds just loads the suspension more than needed and decreases your cornering efficiency. The springs just made me lose traction more easily in hard turns. Sure it lowered my roll center and decreased my roll angle but the effects were negligible compared to the loss of traction. To make a story short that was the worst purchase ever for my bird.
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Old Mar 20, 2005 | 06:16 AM
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From: Kaneohe,HI
Car: 89 RS
Engine: 383 in building process
Transmission: 700r4
Originally posted by FirehawkSS
Im getting rid of the same setup you have. I have the HDs and the eibach pro kit. Worst purchase of all time in my opinion. Why pay 300+ bucks for something thats going to make the handling and the ride worse. I was sucked into the springs make handling better bs that they advertise. I am pulling them out this weekend and trying to sell them. If you want a lowered ride great! They work good for that but all stiffer springs do is make a stiffer ride. Increasing the spring rate on these firebirds just loads the suspension more than needed and decreases your cornering efficiency. The springs just made me lose traction more easily in hard turns. Sure it lowered my roll center and decreased my roll angle but the effects were negligible compared to the loss of traction. To make a story short that was the worst purchase ever for my bird.
Wow. Sorry about your bad experience with this setup. Seems to work good for me though. But every car is different & maybe mine liked it better Hope you find a setup that works for you. Laterz

Anthony
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Old Mar 20, 2005 | 11:40 AM
  #14  
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From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
Originally posted by JungleMan
Could be the fact that your old shocks were probably very worn out and were causing the car to sag (since they were incapacitated to hold it up). So when you put the new shocks on, it raised the car above its previous height, and then the springs dropped it again...so it kind of evened out. If you get my drift.
No, the car was that high with the stock parts on it. Sits the same with the new setup.
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Old Mar 20, 2005 | 12:55 PM
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From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
26 1/2" on the rear and 27 1/4" on the front from the ground to the highest point of the fender lip.
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Old Mar 20, 2005 | 01:28 PM
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From: michigan
Originally posted by FirehawkSS
Im getting rid of the same setup you have. I have the HDs and the eibach pro kit. Worst purchase of all time in my opinion. Why pay 300+ bucks for something thats going to make the handling and the ride worse. I was sucked into the springs make handling better bs that they advertise. I am pulling them out this weekend and trying to sell them. If you want a lowered ride great! They work good for that but all stiffer springs do is make a stiffer ride. Increasing the spring rate on these firebirds just loads the suspension more than needed and decreases your cornering efficiency. The springs just made me lose traction more easily in hard turns. Sure it lowered my roll center and decreased my roll angle but the effects were negligible compared to the loss of traction. To make a story short that was the worst purchase ever for my bird.
that's just crazy. put those things up for sale as they are great parts and shouldn't last long then for you..
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Old Mar 20, 2005 | 02:31 PM
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From: New Mexico
Car: 87 Firebird,
Engine: lq4
Transmission: gto t56 (mn12)
well suspensions are very picky and intricate. My car cant take advantage of these springs. I believe mine is similar to most of yours but we all have our own opinions on how our car feels and drives. I do have the springs up for sale but cant seem to sell them. Im not a good sales person when they ask how i like them.LOL
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Old Mar 20, 2005 | 06:00 PM
  #18  
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From: Kaneohe,HI
Car: 89 RS
Engine: 383 in building process
Transmission: 700r4
Originally posted by FirehawkSS
I'm not a good sales person when they ask how i like them.LOL
I can only imagine your response when people ask how they ride & why you're selling them.....your response"They suuuuuuuck!" nah, don't worry, someone will eventually want them
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Old Mar 20, 2005 | 06:47 PM
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From: New Mexico
Car: 87 Firebird,
Engine: lq4
Transmission: gto t56 (mn12)
Well they were great for lowering the car so that i was happy with that aspect of them. You can get the same results from your original coils. Its not hard and only takes maybe an hour total for all the springs. The forums are all about sharing information with other people concerning your own personal tests and results and opinions. I feel very strongly that you can get identical results without wasting lots of money.
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