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Old 03-07-2014, 01:28 PM   #15
chuckclanton
 
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Quote:
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 01:32 PM. Reason: typo
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Old 03-07-2014, 01:29 PM   #16
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or maybe he's just wrong.
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Old 03-07-2014, 01:37 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, 01:47 PM   #18
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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, 01:49 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, 04:51 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, 05:43 PM   #21
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Originally Posted by VR Baron View Post
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 05:46 PM. Reason: typo
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Old 03-07-2014, 06:21 PM   #22
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Pedders have always been advertised as being linear not progressive.
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Old 03-07-2014, 06:30 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, 06:32 PM   #24
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Quote:
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, 07:38 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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Old 03-08-2014, 04:33 AM   #26
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Above it looks like you are talkin about coil overs. The OP have parts numbers for the sport Ryder which is just the spring on the stock strut.

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Old 03-08-2014, 07:04 AM   #27
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There was an older posting with the drop spring rates. Pretty much everyone's front drop spring rates were in the 200s. Similar to the front coilover rates of most brands. Only Pedders/BC shipped with stiffer 448lbs/ft(8kg) front coilovers. Pedders front drop springs were much softer, but firmer than the stock 150s. I looked at them back in 2009 before going with the coilover option.
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Old 03-08-2014, 09:03 AM   #28
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Quote:
Originally Posted by chuckclanton View Post
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.
Attached are all e-mails with Pedders UK. remember read bottom up as it is a continuing e-mail. Bottom line, Roger says the same, 130#. Anymore interest I gave this e-mail address. However I did respond with the concern of banging into the stops and questioning if the springs may be progressive and the 130# was the initial rate.
Attached Images
  

Last edited by chuckclanton; 03-08-2014 at 09:19 AM. Reason: typo
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