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Old 03-06-2014, 09:49 AM   #1
chuckclanton
 
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Pedders lowering spring rates found!

As Pedders USA is gone, I went to a UK Pedders site and found their springs 220032 & 220035 listed. Requested spring rates from them via e-mail.(see attached). Rates are 130# front and 433# rear. Sorry about the quality of the attachment.
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Last edited by chuckclanton; 03-06-2014 at 09:51 AM. Reason: typo
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Old 03-06-2014, 10:00 AM   #2
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Quote:
Originally Posted by chuckclanton View Post
As Pedders USA is gone, I went to a UK Pedders site and found their springs 220032 & 220035 listed. Requested spring rates from them via e-mail.(see attached). Rates are 130# front and 433# rear. Sorry about the quality of the attachment.
Fixed attachment.
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Old 03-06-2014, 03:34 PM   #3
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130 seems really low for the front. Never ridden on them but it just seems low compared to other manufacturers...
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Old 03-06-2014, 04:46 PM   #4
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I remember they were stiffer then that, around 220+ for the fronts
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Old 03-06-2014, 08:20 PM   #5
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130kg maybe. this is english pedders.
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Old 03-06-2014, 09:20 PM   #6
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130kg maybe. this is english pedders.
7kg is 450 lb springs fyi
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Old 03-06-2014, 09:59 PM   #7
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To the OP can you please ask for clarification on the rates. 130 in/lb seems too low, 130 nm and or Kg is way too high.

Thanks,
Matt
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Old 03-07-2014, 05:39 AM   #8
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130# isn't that low... mine are less then that. They aren't road performance springs though.
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Old 03-07-2014, 06:38 AM   #9
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130# isn't that low... mine are less then that. They aren't road performance springs though.
I assume you have a car setup for drag racing?
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Old 03-07-2014, 08:45 AM   #10
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yep. its pretty light too. id expect a stiff road spring to be 200-250#
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Old 03-07-2014, 10:56 AM   #11
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BMR lists their 1" lowering springs at 220 lbs front and 460 lbs rear. Maybe it's supposed to be 230, not 130 lbs. Could just be a typo.
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Old 03-07-2014, 01:11 PM   #12
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Quote:
Originally Posted by EarlyApex View Post
BMR lists their 1" lowering springs at 220 lbs front and 460 lbs rear. Maybe it's supposed to be 230, not 130 lbs. Could just be a typo.
Is what it is! lighter spring in front(but probably taller than other drop springs unloaded) and stiffer spring in the rear, equals much less understeer in a stock SS.
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Old 03-07-2014, 01:29 PM   #13
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Originally Posted by chuckclanton View Post
Is what it is! lighter spring in front(but probably taller than other drop springs unloaded) and stiffer spring in the rear, equals much less understeer in a stock SS.
Doubt its right. Member near me had them after getting rid of the Pfadt springs. Said they were quite a bit more stiff
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Old 03-07-2014, 01:34 PM   #14
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The springs are progressive, you can't really rate a progressive spring like that.
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Old 03-07-2014, 02:28 PM   #15
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Originally Posted by Rob@WretchedMS View Post
The springs are progressive, you can't really rate a progressive spring like that.
Lots of speculation here. Seems the dealer who sales them in the UK might just have an inside tract on them. Any why wouldn't Pedders USA ever give out the info? Maybe due to the out of sync rates compared to other vendors! Their website is http://www.pedders.co.uk/

Last edited by chuckclanton; 03-07-2014 at 02:32 PM. Reason: typo
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Old 03-07-2014, 02:29 PM   #16
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or maybe he's just wrong.
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Old 03-07-2014, 02:37 PM   #17
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or maybe he's just wrong.
I'm sure you mean half wrong as there seems no opinion regarding the rear springs.
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Old 03-07-2014, 02:47 PM   #18
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Quote:
Originally Posted by Rob@WretchedMS View Post
or maybe he's just wrong.
I sent a response back to:

Pedders UK with a request to double check the 220032 spring rate as my peers find it hard to believe. If I get a response I will post it.
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Old 03-07-2014, 02:49 PM   #19
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It's a progressive spring, the rate changes with compression, so to give you a rate will depend upon the compression.
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Old 03-07-2014, 05:51 PM   #20
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I think most here are gauging by what the mfg's all state they are 220/440 etc. just to compare. We all know they are progressive and it will vary,I cant recall what I saw as Pedders rates, on a thread here somewhere but were advertized as being close to the others
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Old 03-07-2014, 06:43 PM   #21
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I think most here are gauging by what the mfg's all state they are 220/440 etc. just to compare. We all know they are progressive and it will vary,I cant recall what I saw as Pedders rates, on a thread here somewhere but were advertized as being close to the others
The rates have never been advertised by Pedders USA . However one would think that Hotchkis or BMR evaluated them and know but have not
given out the info. Mute point as I have installed Hotchkis springs as the Pedders rates were unknown per anything found on the forum or google.

Last edited by chuckclanton; 03-07-2014 at 06:46 PM. Reason: typo
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Old 03-07-2014, 07:21 PM   #22
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Pedders have always been advertised as being linear not progressive.
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Old 03-07-2014, 07:30 PM   #23
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Pedders have always been advertised as being linear not progressive.
I thought so but has been awhile so couldnt remember
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Old 03-07-2014, 07:32 PM   #24
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Originally Posted by chuckclanton View Post
The rates have never been advertised by Pedders USA . However one would think that Hotchkis or BMR evaluated them and know but have not
given out the info. Mute point as I have installed Hotchkis springs as the Pedders rates were unknown per anything found on the forum or google.
I saw it here somewhere. might have been a post from Pete, cant remember but seems they were similar to the others, however being linear they felt stiffer from what a freind said vs pfadt Preffered my Hotchkis to them
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Old 03-07-2014, 08:38 PM   #25
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Last year, Pete mentioned the stock front rates were a progressive something to the order of 140lbs/ft > 150 > 160 based on spring compression. I needed a softer 2.5" coil on my XAs to pass local reconstruction permit for a stupid bounce test and OE reference to prove my case.

Most front drop springs are in the mid 200s. Rears are typically double that # or higher. 130lbs/ft sounds a little low.

It's hard to find archived posts using subject since they may not appear in the advanced search. If you search by member name, you may find the Pedders spring rate post that way. XAs come with 8kg/10kg. 448/560 lbs/ft
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