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P1 suspension difference compared to standard uk2000 turbo

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Old Aug 28, 2011 | 03:18 PM
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Default P1 suspension difference compared to standard uk2000 turbo

Could someone let me know the differences between P1 suspension (struts and springs) compared to standard (99 classic). Things like Stiffness and Ride height? Etc..

Thanks
Phill
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Old Aug 28, 2011 | 03:35 PM
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I not 100% certain but I think the P1 is about 10mm lower with similar spring rates.Not sure about the shocks.
Someone please correct me if I'm wrong.

Danny.
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Old Aug 28, 2011 | 03:59 PM
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I could be wrong but I always thought the P1 had the same set up as the Type R. So STI shocks and springs. Which are better than a standard UK 1999 car (assuming you are talking about a UK car).
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Old Aug 28, 2011 | 04:19 PM
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Thanks yes standard uk turbo - thanks for the replies... anyone know for sure the difference?
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Old Aug 28, 2011 | 04:28 PM
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Just done some googling and apparently prodrive softened the P1 for uk roads over the type r.The shocks are the same as the uk models,but the springs are a bit stiffer.
This kind of makes sense as my mates standard P1 is quite a bit softer than my type R,which is also standard.His shocks aren't the STI reds,they're black.
Looking at my mates p1 history the shocks look like original ones with no receipts for them ever being changed.
Hope this helps.

Danny.
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Old Aug 28, 2011 | 05:12 PM
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Really helps yes thanks a lot moff for taking time to look - fantastic

In terms of ride height anyone know for sure???
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Old Aug 28, 2011 | 05:39 PM
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With the ride height I'm not sure,couldn't find anything but I'm sure I've read on here somewhere that the P1 is 10mm lower than the uk.I just can't find it.
Hopefully someone else can confirm.

Danny.
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Old Aug 28, 2011 | 05:58 PM
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Originally Posted by MovingShadow
I could be wrong but I always thought the P1 had the same set up as the Type R. So STI shocks and springs. Which are better than a standard UK 1999 car (assuming you are talking about a UK car).
Not if you have the Factory option Bilstein Coilovers fitted
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Old Aug 28, 2011 | 06:08 PM
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after watching the p1 dvd as far as im aware the p1 suspention is unique and is not used on the type r or other cars they apparently went through 20 different set ups
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Old Aug 28, 2011 | 06:10 PM
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the p1 has version five / six struts and prodrive springs made for them by eibach
The car sits lower at the front than the uk models , hope this helps
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Old Aug 28, 2011 | 06:16 PM
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Originally Posted by Mr moff
Just done some googling and apparently prodrive softened the P1 for uk roads over the type r.The shocks are the same as the uk models,but the springs are a bit stiffer.
This kind of makes sense as my mates standard P1 is quite a bit softer than my type R,which is also standard.His shocks aren't the STI reds,they're black.
Looking at my mates p1 history the shocks look like original ones with no receipts for them ever being changed.
Hope this helps.

Danny.
Complete nonsense i'm afraid, the P1 was originally fitted with stock (red) STi shocks and Red Eibach springs (fronts are lower/stiffer than stock STi and rears are progressive rate, so increase in stiffness as they are compressed). Tell your mate someone's robbed his original shocks if they are black .

The P1 setup is arguably the perfect balance for all-round use on our roads, and a BIG step forward over the standard UK kit
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Old Aug 28, 2011 | 06:17 PM
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Originally Posted by Steve777
Not if you have the Factory option Bilstein Coilovers fitted
Didn't know Subaru ever offered a "Factory Bilstein Coilover" option?
Have a WR Brochure in front of me and the only suspension upgrade is the Bilstein/Eibach upgrade (Part No SACC2139) and is only listed for the 4 dr and is not a "Factory Option"
Can anyone verify?
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Old Aug 28, 2011 | 07:22 PM
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The WR brochure will not have the P1 options in it

The P1 suspension is arguably the best classic set-up for UK roads
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Old Aug 28, 2011 | 07:23 PM
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Originally Posted by Dr Who
Didn't know Subaru ever offered a "Factory Bilstein Coilover" option?
Have a WR Brochure in front of me and the only suspension upgrade is the Bilstein/Eibach upgrade (Part No SACC2139) and is only listed for the 4 dr and is not a "Factory Option"
Can anyone verify?
Come and check mine out then. They have a Subaru Part No on them
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Old Aug 28, 2011 | 08:56 PM
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A P1 damper and 'Prodrive' (made by Eibach) spring



Close up of part number detail



The red coloured Prodrive spring is a lowering spring developed for the P1, tweaked for UK roads. They lower the Impreza by 1"

The 'P1' dampers are the same as fitted on the V5/6 STi's (imports obviously). Made by KYB they perform a very decent job of things OE ones, not to be confused with the after market KYB's which are twin tubed). They are mono tubed inverted as opposed to the black dampers which are twin tubed uprights. Combined with the P1 springs they are brilliant for B-road use (ask my mate who's been out with me on a 120 mile hoon with me today ). In fact they were my upgrade choice for a Type R recently bought, over and above coilovers. KW V3 would be an comparable performer

The springs on the import STi's are indeed firmer, to the point of being manic. I owned a V3 Type R STi. The 'P1 set-up' gives excellent feedback, faultless control, and works as a synergy, better than coilovers (have tried Eibach superstreets). Greater compliance too for UK roads



There was a Prodrive Bilstein variant. Arguably better (slightly) than the 'red' set-up





Here's the car sitting on the P1 set-up


Last edited by bonesetter; Aug 28, 2011 at 09:05 PM.
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Old Aug 28, 2011 | 09:43 PM
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Have the Prodrive WR Bilstein/Eibach set-up on mine. Perfect for our roads IMO and rare as rocking horse doo doo.

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Old Aug 28, 2011 | 10:34 PM
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Had the p1 eibach spring with KYB shocks on my uk turbo a while back and they were spot on .
Great ride height only slightly lower than standered but could definatley feel it when cornering felt alot stiffer and flatter into the corner, wasnt really a hard ride with them but signifcantly stiffer.

Just as i removed them before selling them on

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Last edited by leecalcars; Aug 28, 2011 at 10:39 PM.
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Old Aug 28, 2011 | 10:42 PM
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Originally Posted by rossyboy
Have the Prodrive WR Bilstein/Eibach set-up on mine. Perfect for our roads IMO and rare as rocking horse doo doo.
Oh my...

Do tell more - are they an addition you have made? Do you know how they differ from the the red dampers? I know these can be rebuilt and revalved
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Old Aug 29, 2011 | 12:46 AM
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The P1 setup is arguably the perfect balance for all-round use on our roads, and a BIG step forward over the standard UK kit [/

The shocks look as old as the rest of the car.his are progressive springs but the shocks don't have any obvious logo on them.
He's running 17's and I'm running 16's and mine's quite a bit firmer.
Didn't know the springs were Eibach.I'm kind of tempted to try some.my old Evo had Tein super street coil overs and they were really harsh.These type r springs are almost as bad.

Can anyone confirm if the type r v5 springs should be red or black?
Reason I ask is my springs are black.I'm wondering if something firmer's been fitted.
Here's a pic of under mine.sorry for the crap photo,but you can just see the bottom of the shock.It's definately the standard shocks.
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Danny.

Last edited by Mr moff; Aug 29, 2011 at 01:44 AM. Reason: Trying to get the picture to work.
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Old Aug 29, 2011 | 09:44 AM
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Originally Posted by bonesetter
Oh my...

Do tell more - are they an addition you have made? Do you know how they differ from the the red dampers? I know these can be rebuilt and revalved
They were an option from Prodrive in the late nineties (£1100). Mine came from a UK Prodrive WR Sport Impreza.

I dont have any experience of the red shocks to make a comparison I'm afraid.
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Old Aug 29, 2011 | 09:06 PM
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Originally Posted by Steve777
Come and check mine out then. They have a Subaru Part No on them

Post a picture then, that way we can determine if they are "Coilovers"
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Old Aug 29, 2011 | 09:12 PM
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Originally Posted by 500
The WR brochure will not have the P1 options in it

The P1 suspension is arguably the best classic set-up for UK roads
The WR Brochure I have in front of me lists P1 options, for example:

P1 18" wheel upgrade Part No: SACC6021G
P1 Rear exhaust silencer Part No:SACC6028
P1 Gas discharge driving lamps Part No: SACC6022
P1 Recaro interior: Part No SACC6023

Also of interest is SACC2139: Bilstein Suspension upgrade, no sign of any "Coilovers" though?
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Old Aug 29, 2011 | 10:59 PM
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Originally Posted by rossyboy
They were an option from Prodrive in the late nineties (£1100). Mine came from a UK Prodrive WR Sport Impreza.

I dont have any experience of the red shocks to make a comparison I'm afraid.
Prodrive blue springs too. Blue was the original colour, now they're red, although sold as 'original Prodrive P1 springs'
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Old Aug 30, 2011 | 12:28 PM
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Originally Posted by Dr Who
Also of interest is SACC2139: Bilstein Suspension upgrade, no sign of any "Coilovers" though?
99% sure thats the set that I've got, as per pic.

Originally Posted by bonesetter
Prodrive blue springs too. Blue was the original colour, now they're red, although sold as 'original Prodrive P1 springs'
Yep, blue springs and I think mine came from a '98 car.
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Old Aug 30, 2011 | 01:13 PM
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Hi guys - could someone tell me - I'm looking at buying the P1 shocks and springs off a listing that has now ended on eBay. They are 4 red springs and red struts but one of the struts is black as he had to replace it recently. Why would it be black? How would I know he had bought the proper strut and not a cheap copy or incorrect replacement?

Ta
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Old Aug 30, 2011 | 02:35 PM
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I have Type R version 5 (1999) on going project.

I seem to be going round in circles and I think a few of us are chasing the same Shocks & springs. Just to clarify does anyone know if or where you can get old P1 set up but new?

If not what else out there is recommended for fast road use BC tein etc?
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Old Aug 30, 2011 | 03:47 PM
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i have V6 sti shocks and springs on my wrx, they are a huge difference over stock. ive fitted Hks springs which have sat it around 10mm lower than the stock (black) sti springs and a tad softer so id say similar to the P1
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Old Aug 30, 2011 | 08:56 PM
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Originally Posted by Ramdog81
I have Type R version 5 (1999) on going project.

I seem to be going round in circles and I think a few of us are chasing the same Shocks & springs. Just to clarify does anyone know if or where you can get old P1 set up but new?

If not what else out there is recommended for fast road use BC tein etc?
You can get 'P1' dampers which are the same as V5/6 STi dmapers (red colour) from your local Subaru dealer. Then 'Prodrive P1' (Eibach) springs

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Old Sep 2, 2011 | 12:14 AM
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Nice page here with spring rates of a lot of different stock and aftermarket suspension setups, including the P1:

NorthUrsalia.com: Spring Rate Chart
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Old Sep 3, 2011 | 04:40 PM
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cool, i have the prodive bilstein's glad to find out they are rare have the original receipt for them as well in the folder :-)
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