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Old 03-01-2011, 11:48 PM   #1
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Question Drop springs detrimental to your shocks?

Was talkin to J earlier about the advantages of coilovers VS springs, and he motioned that some people have experienced shortened shock lifespan as a result of adding lowering springs to their ride... Anyone experience this? I'd love a set of coilovers, but my mod budget would require some real saving to accomplish that, and pulling a set off by April is just not gonna happen. SO, what do i do? Do I pick up springs/sways before the Fest and hope my shocks don't pay the price? Or do I hit the track stock and hope I don't roll the beast?
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Old 03-01-2011, 11:53 PM   #2
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Funny that you post this now. SUPRBAD is down at JDP Motorsports right now getting PFADT drop springs installed.
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Old 03-02-2011, 12:02 AM   #3
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Funny that you post this now. SUPRBAD is down at JDP Motorsports right now getting PFADT drop springs installed.
Yes, I are guilty of timing fail




Let me know how you like em, I'm really hoping that no one responds 'cuase I'd like to have some solidity in my chassis before the Fest!
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Old 03-02-2011, 01:01 AM   #4
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This is the response that Pfadtracing posted when we discussed the same question:

"Thanks guys for recommending our Lowering Springs! There will be a bit of a change in the handling of your car after the installation of lowering springs, the biggest reason for this is the increased spring rate. After the installation of lowering springs you will notice a more balanced feel in hard cornering, and a more aggressive stance while standing still. Even with the increase in spring rate, our springs were designed for use with your stock GM shocks and will still provide a long service life. As many have reported here on the forums, ride quality does not suffer at all with the installation of our drop springs."
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Old 03-02-2011, 02:42 AM   #5
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Hmmmmm... When he says "long service life" is he referring to the shocks or springs?
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Old 03-02-2011, 06:18 AM   #6
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Originally Posted by Revo1 View Post
Hmmmmm... When he says "long service life" is he referring to the shocks or springs?
The spring rate and ride height of the Pfadt lowering springs were selected to optimize and compliment the function of the stock dampers. You can experience significantly shortened damper service life if you go with a lowering spring that lowers the car too much (1.5 inch +) but with Pfadt springs you will not have that problem.
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Old 03-02-2011, 07:33 AM   #7
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Quote:
Originally Posted by Apex Chase View Post
The spring rate and ride height of the Pfadt lowering springs were selected to optimize and compliment the function of the stock dampers. You can experience significantly shortened damper service life if you go with a lowering spring that lowers the car too much (1.5 inch +) but with Pfadt springs you will not have that problem.
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Old 03-02-2011, 07:52 AM   #8
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I’m no engineer, but wouldn't the shocks do less "work" with stiffer springs. With the factory springs the nose of the car shot up a foot every time I accelerated.

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Old 03-02-2011, 11:50 AM   #9
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Those that experience less life in their struts have installed a coil set that is allowing too much compression and damage to the foot valve. The other reasons that the hydraulics would fail are damage to the strut shaft during the new coil installation or to the seals and internals from spinning the shaft with an air gun.

Scratches on the strut shaft will damage the seal. Damage the seal and the unit will fail. The quench, the resistance on the strut retaining nut is very high from the factory. Reinstalling the top nut because of this resistance can be a real problem. Hammering away with an air gun while the shaft endlessly rotates can cause all kinds of issues. While I believe that Pedders lowering coils are the best choice for a 5th Gen out of all the available lowering coils, I don't know of a single reputable company that sells a 5th Gen coils that will damage the foot valve.

All you had to do was get married at C5Fest and you could have had a full suspension as a wedding gift. What were you thinking?
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Old 03-02-2011, 11:59 AM   #10
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Thanks for the interest in our springs! Looks like what needs to be covered here has already been covered. Just to reiterate, Pfadt lowering springs were specifically designed to work with the stock Camaro shocks and will provide a long service life.

If you have any more questions please don't hesitate to ask!
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Old 03-02-2011, 12:11 PM   #11
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Quote:
Originally Posted by Revo1 View Post
Was talkin to J earlier about the advantages of coilovers VS springs, and he motioned that some people have experienced shortened shock lifespan as a result of adding lowering springs to their ride... Anyone experience this? I'd love a set of coilovers, but my mod budget would require some real saving to accomplish that, and pulling a set off by April is just not gonna happen. SO, what do i do? Do I pick up springs/sways before the Fest and hope my shocks don't pay the price? Or do I hit the track stock and hope I don't roll the beast?
Your answer lies in your overall plan and use of your 5th Gen.

When you say hit the track are you auto-crossing, HPDE or drag strip?
Do you plan to track you car often?
What engine, brake and wheel mods do you have planned?
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Old 03-02-2011, 12:14 PM   #12
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Revo 1, suggestion, do the lowering springs now and then in a year or 2 when you have the money saved upgrade to coilovers! Springs are relatively cheap and you can get it done by C5fest!
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Old 03-02-2011, 03:52 PM   #13
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Quote:
Originally Posted by JusticePete View Post
Those that experience less life in their struts have installed a coil set that is allowing too much compression and damage to the foot valve. The other reasons that the hydraulics would fail are damage to the strut shaft during the new coil installation or to the seals and internals from spinning the shaft with an air gun.

Scratches on the strut shaft will damage the seal. Damage the seal and the unit will fail. The quench, the resistance on the strut retaining nut is very high from the factory. Reinstalling the top nut because of this resistance can be a real problem. Hammering away with an air gun while the shaft endlessly rotates can cause all kinds of issues. While I believe that Pedders lowering coils are the best choice for a 5th Gen out of all the available lowering coils, I don't know of a single reputable company that sells a 5th Gen coils that will damage the foot valve.

All you had to do was get married at C5Fest and you could have had a full suspension as a wedding gift. What were you thinking?
Doh! And I just got engaged!
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Old 03-02-2011, 03:54 PM   #14
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Quote:
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Revo 1, suggestion, do the lowering springs now and then in a year or 2 when you have the money saved upgrade to coilovers! Springs are relatively cheap and you can get it done by C5fest!
This! The springs I'm looking at are 1.2" drop, so nothing too drastic. Hopefully I'll be able to pull them off and replace with coilovers before too long. If I can't get my hands on coilovers within a year, would it be smart to re-install my stock springs?
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Old 03-02-2011, 03:58 PM   #15
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Quote:
Originally Posted by Revo1 View Post
This! The springs I'm looking at are 1.2" drop, so nothing too drastic. Hopefully I'll be able to pull them off and replace with coilovers before too long. If I can't get my hands on coilovers within a year, would it be smart to re-install my stock springs?
If you opt for lowering coils, there shouldn't be a need to reinstall your stock coils. If you want coilovers, don't do the lowering coils. Hold on to your cash and be that much closer to your coilovers
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Old 03-02-2011, 04:07 PM   #16
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Quote:
Originally Posted by Revo1 View Post
This! The springs I'm looking at are 1.2" drop, so nothing too drastic. Hopefully I'll be able to pull them off and replace with coilovers before too long. If I can't get my hands on coilovers within a year, would it be smart to re-install my stock springs?
No need to go back to stock after a year! Just leave them on and replace the whole assembly with the coilovers when you get them. You'll have to get an alignment with the lowering springs so you'd have to re-align if you go back to stock. Also, the car will already be aligned for the new ride height with the springs so you can set up the coilovers at the same height so alignment won't be an issue.
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Old 03-07-2011, 02:04 PM   #17
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as long as you don’t drive it like you stole it.. then the normal recommendation of 50k still applies
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Old 03-07-2011, 02:57 PM   #18
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I say drive it like you own it!
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Old 03-09-2011, 04:42 PM   #19
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I say drive it like you own it!
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Old 03-09-2011, 04:43 PM   #20
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WELL, pulled the trigger on some BMR springs- 1" drop. Eibach front/rear sways to follow, hoping to order tonight. Will let you guys know how it goes
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Old 03-09-2011, 04:46 PM   #21
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Quote:
Originally Posted by JusticePete View Post
Your answer lies in your overall plan and use of your 5th Gen.

When you say hit the track are you auto-crossing, HPDE or drag strip?
Do you plan to track you car often?
What engine, brake and wheel mods do you have planned?
I never answered your question

Going to be either the PFADT track day road course, OR AutoX and a little drag, just for fun

Probably won't track her very often outside of the 'Fest, so most DD duty...
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Old 03-09-2011, 06:44 PM   #22
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I never answered your question

Going to be either the PFADT track day road course, OR AutoX and a little drag, just for fun

Probably won't track her very often outside of the 'Fest, so most DD duty...
You are welcome at the autocross, even if you have brand-x lowering coils

To get the most out of your lowering coils be sure to time your bushes to the new ride height. With the bushes timed the next step is a tight spec alignment. Get your rear cambers set to the lowest negative camber possible i.e -.7 or -.5

Castor is fixed from the factory
Front camber -1
Front toe 0
Rear camber as noted above, less negative is better especially in a hard launch
Rear toe 0
Thrust angle 0
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Old 03-09-2011, 08:06 PM   #23
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Originally Posted by Revo1 View Post
WELL, pulled the trigger on some BMR springs- 1" drop. Eibach front/rear sways to follow, hoping to order tonight. Will let you guys know how it goes
Hmmm....wonder where you got them springs from! LOL! Let me know when they arrive!
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Old 03-09-2011, 08:10 PM   #24
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Originally Posted by JusticePete View Post
You are welcome at the autocross, even if you have brand-x lowering coils

To get the most out of your lowering coils be sure to time your bushes to the new ride height. With the bushes timed the next step is a tight spec alignment. Get your rear cambers set to the lowest negative camber possible i.e -.7 or -.5

Castor is fixed from the factory
Front camber -1
Front toe 0
Rear camber as noted above, less negative is better especially in a hard launch
Rear toe 0
Thrust angle 0
Holy cow, I'm in way over my head!

Is there somewhere I can get details on how to achieve these adjustments? I had been told an alignment would be in order after the springs, but that's about the extent of my knowledge in that area

Revo1 = ubernoob
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Old 03-09-2011, 08:12 PM   #25
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Hmmm....wonder where you got them springs from! LOL! Let me know when they arrive!
I wonder........

They're set to come in Tuesday, hoping for a speedy delivery!
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