Pedders lowering spring rates found! - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

chuckclanton · 03-07-2014, 01:28 PM

Quote:

Originally Posted by Rob@WretchedMS

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/

Rob@WretchedMS · 03-07-2014, 01:29 PM

or maybe he's just wrong.

chuckclanton · 03-07-2014, 01:37 PM

Quote:

Originally Posted by Rob@WretchedMS

or maybe he's just wrong.

I'm sure you mean half wrong as there seems no opinion regarding the rear springs.

chuckclanton · 03-07-2014, 01:47 PM

Quote:

Originally Posted by Rob@WretchedMS

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.

Rob@WretchedMS · 03-07-2014, 01:49 PM

It's a progressive spring, the rate changes with compression, so to give you a rate will depend upon the compression.

VR Baron · 03-07-2014, 04:51 PM

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

chuckclanton · 03-07-2014, 05:43 PM

Quote:

Originally Posted by VR Baron

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.

Dropspeed · 03-07-2014, 06:21 PM

Pedders have always been advertised as being linear not progressive.

VR Baron · 03-07-2014, 06:30 PM

Quote:

Originally Posted by Dropspeed

Pedders have always been advertised as being linear not progressive.

I thought so but has been awhile so couldnt remember

VR Baron · 03-07-2014, 06:32 PM

Quote:

Originally Posted by chuckclanton

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

sting808 · 03-07-2014, 07:38 PM

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

Dropspeed · 03-08-2014, 04:33 AM

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.

Matt

sting808 · 03-08-2014, 07:04 AM

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.

chuckclanton · 03-08-2014, 09:03 AM

Quote:

Originally Posted by chuckclanton

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.

03-07-2014, 06:21 PM	#22
Dropspeed 2013 Camaro SS1LECTSVZ28 Drives: 2013 AGM 1SS/1LE Join Date: Nov 2012 Location: Suburbs of Detroit, MI Posts: 2,440	Pedders have always been advertised as being linear not progressive. __________________ My 1LE Build/Journal : http://www.camaro5.com/forums/showthread.php?t=351990

03-08-2014, 04:33 AM	#26
Dropspeed 2013 Camaro SS1LECTSVZ28 Drives: 2013 AGM 1SS/1LE Join Date: Nov 2012 Location: Suburbs of Detroit, MI Posts: 2,440	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. Matt __________________ My 1LE Build/Journal : http://www.camaro5.com/forums/showthread.php?t=351990

03-07-2014, 01:29 PM	#16
Rob@WretchedMS Drives: His Wife Crazy Join Date: Jan 2008 Location: Silas Deane Auto,CT Name: Rob Anderson Posts: 1,789	or maybe he's just wrong.

03-07-2014, 01:49 PM	#19
Rob@WretchedMS Drives: His Wife Crazy Join Date: Jan 2008 Location: Silas Deane Auto,CT Name: Rob Anderson Posts: 1,789	It's a progressive spring, the rate changes with compression, so to give you a rate will depend upon the compression.

03-07-2014, 04:51 PM	#20
VR Baron SoCal Camaro5 Race Team Drives: 2021 Shadow Grey Camaro 2SS 1LE Join Date: Mar 2010 Location: SO CAL Posts: 14,288	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

03-07-2014, 07:38 PM	#25
sting808 Drives: 2010 SS RS Join Date: Apr 2009 Location: Honolulu, Hawaii Posts: 930	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

03-08-2014, 07:04 AM	#27
sting808 Drives: 2010 SS RS Join Date: Apr 2009 Location: Honolulu, Hawaii Posts: 930	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.