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Old 12-09-2003, 04:03 AM   #26
supermarkus
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I'm guessing directly from Perrin, they're based in Beaverton, Oregon. About 15 minutes from Portland.
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Old 12-09-2003, 12:16 PM   #27
mick_the_ginge
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The alignment - Les Schwab (4th alignment now, next time I'm going to install all suspension parts at the same time)

PSRS from a local here in PDX
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Old 01-13-2004, 04:42 AM   #28
capt.sensible
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Uh,

Sorry to resurrect a buried post, but I was wondering if anyone else has installed the PSRS kit, and if you'd be willing to share your impressions.

Thanks.
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Old 01-26-2004, 11:13 PM   #29
04wrxdrifter
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yea smae here....

I want to know more about instaling and if this part is worth the time and money... What can i expect...
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Old 03-02-2004, 05:44 AM   #30
petawabit
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Old 03-02-2004, 10:47 AM   #31
Deznuts05
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yea I know this is a newbie question... but... with the install of the PSRS is there a need of an allignement? I just recently had my car sorted out so I'm not really down with spending $75 again...

thanks

oh yea I'd really like to see the diffrecece I used to have the WL ALK but due to a accident the ALK was destroyed... I must say the WL is almost indrestrutable(sp)
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Old 03-02-2004, 11:06 AM   #32
Cosworth
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Quote:
Originally posted by Deznuts05
yea I know this is a newbie question... but... with the install of the PSRS is there a need of an allignement? I just recently had my car sorted out so I'm not really down with spending $75 again...
Realistically, you should. These kits drop the axis of the front transverse link enough that your toe is going to go inward some. I can't quote you any hard figures, however, thats what the geometry dictates.
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Old 03-02-2004, 01:11 PM   #33
PERRIN
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You absoluetly will have to align the car. Since it pushes the wheel forward, it will cause toe out,on the front.
Locally we have a couple of alignment shops that have "lifetime alignment", we definatley abuse the "lifetime alignment" policy!

Jeff
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Old 03-02-2004, 05:02 PM   #34
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Hey Perrin - have you tested these with the Aluminum Control arms? Any compatibility problems? Thanks

sherif
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Old 03-02-2004, 05:42 PM   #35
PERRIN
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No issues with the STI control arms, but you do seem to get a little more cast. Not enough to make a difference in feel though.
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Old 03-03-2004, 12:27 AM   #36
04wrxdrifter
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PERRIN...

whats the deal with your rear sway bar and it making that clunking noise.. do i just need stiffer hangers fot my mufler or is there something i can do
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Old 03-03-2004, 03:30 AM   #37
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Quote:
Originally posted by Perrin
No issues with the STI control arms, but you do seem to get a little more cast. Not enough to make a difference in feel though.
more castor than the 0.6 you mentioned previously?

sherif
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Old 03-08-2004, 01:58 PM   #38
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Sherifx, yes a little more, I haven't done a back to back test, but the aluminum control arms are a little longer than the stock ones, and they have added caster already.

As for the clunking sway bar, we have had some problems with stock exhaust systems and the clucking, but it is generally a solvable issue by lossening the sway bar mounts and pushing them tward the front of the car.

Email us if this doens't work.
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Old 03-29-2004, 02:50 AM   #39
igalwrx
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Perrin....will the PSRS work with the Cusco V2 lower chassis brace?
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Old 04-06-2004, 01:32 PM   #40
PERRIN
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Sorry for the slow reply, we have been at the IAS show in LA and just got back. But back to your question, it should work, just fine, the only thing is you might need an extra long bolt for one of the mounts. We had a customer of ours that was going to try to put the brace under the sub frame and use it in place of a couple of spacers. I am not sure how that worked, but it sounded like a good idea to me!
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Old 04-06-2004, 02:07 PM   #41
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I have the Whiteline ALk and helped a friend install his new Perrin PSRS.
The install is the same for both.
Both kits come with subframe spacers so you can retain your big heavy U-brace.
The spacers cause the subframe to dip lower in the rear on the sides(just like Whiteline's), so if you are slammed on 19" rims, you'll want to ditch the subframe.
Neither one of us noticed any difference in the NVH between the 2 kits, we both run Tein Flex coilovers.
The Perrin kit also works with the GT-Spec lower arm bar (just like the Cusco Type II), we just needed to use a couple of longer bolts, but the brace fits even with the subrframe and the PSRS.
You can turn the toe adjustment rod about 1/6 turn(plus a little extra for the PSRS) on each side to keep you toe about where it was set to while waiting to get an alignment.
Always get an alignment after changing anything that effects suspension geometry, caster, toe, or camber.
Getting a more aggressive alignment alone on a stock car will give you better handling than it comes with from the factory.
After he gets his alignment, I'll post if the difference between my car with the ALK and his with the PSRS is noticeable.
As for whether this type of mod is worth it, absolutely.
The turn-in and steering feedback and response are very noticeable and very nice to have.
The install may be a pain, but it is worth it for sure.
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Old 04-06-2004, 04:07 PM   #42
r_master
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i have the whiteline alk on a sedan and currently have 3.3 caster in the front. seems like perrin give you 0.7 more.

questions: is more caster always better?
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Old 04-06-2004, 05:54 PM   #43
ride5000
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Quote:
Originally posted by r_master
i have the whiteline alk on a sedan and currently have 3.3 caster in the front. seems like perrin give you 0.7 more.

questions: is more caster always better?
i don't think we've reached the limit with bolt on parts on the wrx yet where there was too much caster.

symptoms of this would be very heavy steering feel, maybe a bit less nimble.

ken
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Old 04-07-2004, 12:16 AM   #44
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Quote:
Originally posted by r_master
i have the whiteline alk on a sedan and currently have 3.3 caster in the front. seems like perrin give you 0.7 more.

questions: is more caster always better?
I have the ALK and Noltec camber/caster tops and I have ~5° caster and it rocks The more the better, and I don't think there IS any way to get 'too much' on any Impreza without drastic surgery on the body and/or suspension components.
Some other cars...not Impreza's....get 10°+ caster if what I've read is correct.
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Old 04-07-2004, 12:33 AM   #45
Arnie
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Quote:
Originally posted by Uncle Scotty
get 10°+ caster if what I've read is correct.
10°+...wow, that's like a chopper fork!
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Old 04-07-2004, 01:21 AM   #46
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Quote:
Originally posted by Arnie
10°+...wow, that's like a chopper fork!
I'm not sure but I believe it was some of the BMW boys getting that much....M3's mebbe...
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Old 04-07-2004, 01:56 AM   #47
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The new corvette has 8 degrees
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Old 04-22-2004, 02:05 AM   #48
Arnie
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A couple of questions for Perrin:

- The PSRS relocate the control arm out a bit more than the ALK. Looking at the range of motion of the control arm, pushing out too far risks that the control arm flange might make contact with the body shell. How do you get more caster and not the touch body work? And how many millimeters or inches did you locate the pivot point outwards?

- I admire the use of the bearings despite the potential for harshness. What is the "useable life" rating for the bearing according to Perrins testing (miles, kilometres)? What is the axial and radial load rating for the bearing used?
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Old 04-22-2004, 01:06 PM   #49
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Arnie,
There is no worries with how far the wheel gets pushed forward. Even on an STI, there is plenty of room for wheel travel/wheel turning. I say even on the STI because the STI control arms have more caster built in, and the track is different.

As mentioned before, the harshness of the bearings isn't a worry. It seems like it might be like adding some solid top hat coilovers, but its no where near that harsh.

Usable life is longer than you will own your car, since the bearing has a teflon liner it will last a very very long time. After 2 years of use, the bearing in our prototype set are still nice and snug.

As for load rating, these bearings have a radial load bearing of 56,000lbs! Which far exceeds any pressure that can be exerted in a race situation.

Hope that answers all your questions.
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