Suspension & Brakes Springs | Shocks | Handling | Rotors

SLP Bilstein shocks

Thread Tools
 
Search this Thread
 
Old Feb 25, 2009 | 11:48 AM
  #1  
Alex212's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2008
Posts: 104
Likes: 0
From: Delaware
Default SLP Bilstein shocks

Can SLP Bilstein shocks be used with stock 01 Z28 springs? I've got 35k on my car and although my suspension is not bad I'm trying to get rid of the mushyness.

I know Koni's are the way to go but even discounted the 4/3 setup is still more than i really want to spend. Summit currently has the SLP Bilsteins for $313 for all 4. But will they maintain a smooth comfortable ride while improving performance. I'm not interested in lowering my car nor will i ever be and I don't race....The car is just a summertime weekend cruiser.

Has anyone used these with their stock z28 springs?

Thanks
Reply
Old Feb 25, 2009 | 03:21 PM
  #2  
99Bluz28's Avatar
TECH Senior Member
iTrader: (35)
 
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Default

IMO,Those would work great with the stock springs!
Reply
Old Feb 25, 2009 | 07:19 PM
  #3  
Alex212's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2008
Posts: 104
Likes: 0
From: Delaware
Default

To expand on this a bit....I just came across a good deal on OEM SLP front springs. These are rated at 223-448 while stock is 292, my understanding is these these will provide a .75" drop.

My thought is to go with the SLP Bilstein shocks all around. Replace my front stock springs with the OEM SLP's for a .75" drop , while leaving the back springs stock and doing the isolator mod for a .75" drop.

Dropping the car is not a big a deal to me, but $50 for a new pair of SLP front springs to improve performance sounds good to me and if I get a little drop then so be it.

Will stock rear springs hamper performance? Rates are pretty close (stock 114 vs SLP 97-136)

What do you guys think? Am I heading down the wrong path?

Last edited by Alex212; Feb 25, 2009 at 07:32 PM.
Reply
Old Feb 25, 2009 | 08:58 PM
  #4  
99Bluz28's Avatar
TECH Senior Member
iTrader: (35)
 
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Default

Your be fine, those springs were meant to go with those shocks. And it sounds like your headed in the right direction, IMO.
Reply
Old Feb 25, 2009 | 10:10 PM
  #5  
Striker's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Aug 2007
Posts: 1,613
Likes: 3
Default

Wouldn't the Bilsteins be suited for lowering applications as well? I mean konis and KYBs cant be the only two struts that can handle lowering springs.
Reply
Old Feb 26, 2009 | 07:40 AM
  #6  
leadfoot4's Avatar
TECH Veteran
20 Year Member
iTrader: (1)
 
Joined: Sep 2005
Posts: 4,621
Likes: 11
From: Webster, NY
Default

From my vantage point, there seems to be a bit of discussion as to what constitutes a "revalved" and/or "SLP" Bilstein shock. It appears that at one time or another, SLP sold "revalved" Bilstein shocks, that were modified to work with either "their" Eibach springs, or the "aftermarket over the counter" Eibach ProKit springs. The discussion centers around which Eibach springs they were revalved to work with.

Having said that, I have a '96 Z-28. I bought the car new, in October of 1995. While I had the car in "winter storage" over the 1995-96 winter, I installed the Eiback ProKit springs. Due to budget constraints, I wasn't able to also replace the shocks at that time, assuming, of course, that there was something more suitable way back then. Secondly, probably mistakenly, I assumed a car that had only 2000 miles on it, would have shocks that were good for another several thousand miles.

I drove the car like that until the end of 1999, and at that time, I bought a set of the Bilsteins that SLP was selling. As I recall, their catalog stated that they were "revalved" for use with Eibach springs. Again, being unaware, I assumed that they meant for the Eibach springs I had, as I didn't know that Eibach was making special springs for SLP, that had only 3/4" drop, rather than the ProKit's 1.25" drop. Nonetheless, I installed them over the '99-'00 winter, and immediately noticed a trememdous improvement in ride quality and car control.

That's my $0.02 worth....
Reply
Old Feb 26, 2009 | 09:33 AM
  #7  
Alex212's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2008
Posts: 104
Likes: 0
From: Delaware
Default

Kind of what i was hoping to hear. Even though my car only has 35k on it and is not driven hard or raced. The stock suspension has definitely gone down hill. I was concerned i wouldn't see much improvement over stock but after much research i think it's a good move especially when you consider price. New OEM SLP front springs and SLP Biltein shocks for $390 is hard to beat. My only concern was keeping the stock rear springs but I think with the fuel hose mod it will provide some drop to match the front and performance wise should be fine as well.

Also with regard to Strikers question my research tells me that the SLP Bilsteins are more suited to lowering springs where the HD Bilsteins are intended for stock springs. But folks have used them with lowering springs with no issues except possibly they will wear out quicker.

Last edited by Alex212; Feb 26, 2009 at 09:43 AM.
Reply
Old Feb 26, 2009 | 01:29 PM
  #8  
99Bluz28's Avatar
TECH Senior Member
iTrader: (35)
 
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Default

I believe the SLP and HD rear bilsteins have the same valving, It's the SLP front bilsteins that have the better valving.The front SLP bilsteins valving is still better than the HDs even with stock springs.

The Bilsteins will last a lot longer than most shock out there, IMO!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Feb 27, 2009 | 03:49 PM
  #9  
Alex212's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2008
Posts: 104
Likes: 0
From: Delaware
Default

I'm also upgrading the front sway bar from stock 30mm to a OEM 32mm, prob a minimal upgrade but at $60 for new I'll give it a shot. So i guess you could say that i'm going from a base Z28 to a SS level 1 SLP susp. I don't know if all this will make a dramatic difference, but if it at least eliminates or minimizes the wandering tendancy especially during maneuvers at higher speeds then I'll be happy.

Last edited by Alex212; Feb 27, 2009 at 04:28 PM.
Reply
Old Jun 17, 2009 | 10:03 PM
  #10  
wannafbody's Avatar
TECH Senior Member
20 Year Member
Community Builder
Liked
Loved
iTrader: (3)
 
Joined: Apr 2006
Posts: 5,622
Likes: 1,153
From: Pittsburgh
Default

SLP sells the front Bilsteins seperately. Koni 3rd gen rears or 3rd gen rear Bilsteins from Strano are the better option for the rear.
Reply




All times are GMT -5. The time now is 09:04 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE