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Brakes & Suspension Forum sponsored by The Tire Rack |
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01-27-2020, 01:30 PM | #26 |
Scooby Newbie
Member#: 361832
Join Date: Jul 2013
Location: Canada
Vehicle:2011 Subaru STI DGM |
That would work except the stock struts are under damped so rough roughs are quite harsh. I went to the Cusco adjustable shocks with the RCE black springs and actually found the ride smoother and less rough that stock 2011 springs and struts.
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01-27-2020, 01:42 PM | #27 | ||
Scooby Specialist
Member#: 265783
Join Date: Dec 2010
Chapter/Region:
RMIC
Location: the fern behind the porn couch
Vehicle:2017 Forester XT Niner ROS 9 |
Quote:
Okay, here's much of my "unsent" response, which was to mainly outline the STi to WRX suspension woes: Quote:
one issue with STi suspension on a WRX is the front strut clevis widths are different and the hole spacing is also different. you'd have to add spacers and redrill the holes to make the STi struts work with the WRX hub knuckle. the rear shocks would directly bolt on though. another problem is that the rear 11-14 STi springs are a good 30mm shorter in the rear than a WRX rear spring, so when assembled, there is about 1/4" slop in the spring between the top hat and spring perch when the shock assembly is not under load. I discovered this when adding 2011 STi springs to WRX Koni's. maybe it's a minor issue, but it made me super paranoid, so I made a little spacer to lift the spring perch on my Koni's to make up for this distance. however, something never felt quite right and that rear spring rate was often too much for my needs. I wonder if my issue with the springs and spacers was some sort of preload issue I inadvertently created with my cowboy engineering? dunno. switching to King's was a much better setup for me, though I did wish the rear spring had bit stiffer rate. during my King swap, I also went from an adjustable 22mm rear sway, to a 2015 STi 20mm sway. much better for the dirt-friendly daily driver I wanted from the car. I could feel a lot more wheel articulation independence, which felt great in all aspects of handling. the big sway and big rear rate did not feel that way at all. |
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01-27-2020, 01:53 PM | #28 |
Scooby Specialist
Member#: 265783
Join Date: Dec 2010
Chapter/Region:
RMIC
Location: the fern behind the porn couch
Vehicle:2017 Forester XT Niner ROS 9 |
here's the thread that started it all... OP never responded, but I hijacked it with my own project of moar stupider:
https://forums.nasioc.com/forums/sho....php?t=2453203 |
01-27-2020, 09:53 PM | #29 |
Scooby Newbie
Member#: 461781
Join Date: Jan 2017
Location: Seattle area
Vehicle:2012 WRX Hatch Silver |
I’m still here digesting.
Just got a little tied up with home chores.. Thanks for all the good info. A few things caught my attention. 1) adding sway bars into the mix. The sti sway bar seems cheap enough, maybe a good one to start with. 2) bilstein/rce struts. I’ve seen them mentioned a few times. (Thoughts isotopesope?) 3) king springs really seem to appeal to me (the extra height is attractive to gain safety margin over parking stones and curbs) Anyone have any opinions on these used Gtworx/ fatcats? https://offerup.co/kpXSX2NCB3 I’m thinking I could send them in for overhaul and perhaps still be cost effective? |
01-28-2020, 09:07 AM | #30 | ||
Scooby Specialist
Member#: 128115
Join Date: Oct 2006
Chapter/Region:
South East
Location: Wilmington, NC
Vehicle:2008 STi Hatch OBP enginuity is cool |
Quote:
I would be using the '13 struts and springs on an '08. Curious as to whether ride height would be effected with the higher spring rates? Quote:
Sway bars do help. What I found was using equal dia bars front and rear seems to provide better balance for everyday driving. Still far from "great" though. Since the suspension geometry is different on the GR from the GD having a larger front bar than the rear wouldn't alleviate the "understeeriness" as much. Double wishbone in the rear for the GR as opposed to McPherson struts all around on the GD seems to be the cause of this. I remember an almost night and day difference on my '04. |
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01-28-2020, 09:28 AM | #31 |
Scooby Newbie
Member#: 246673
Join Date: May 2010
Location: Central NY
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I replaced the struts, springs, shocks on our 2012 WRX 5dr.
QTY KYB Part# 1 339172 1 339171 2 341487 King springs KSFS-52 B fronts KSRS-53 B rears Owned it since new (wife's car) both rear shocks were leaking oil and front was low enough to be incompatible with the bad roads and hazards here. The King Springs lifted the front a little vs. the worn out OEM parts. Stock wheel arch height spec is Front 376mm rear 370mm. Currently ours measures Front 375mm rear 368mm. With 152k miles it drives much nicer and sits slightly higher especially in the front. Any concern over lower height of the pre'11 KYB's was eliminated with the King springs. After 6k miles the general impression - better damping than stock worn out parts(and possibly better than new) - increased spring rate with no perceivable penalty in ride |
01-28-2020, 10:05 AM | #32 | |||
Scooby Specialist
Member#: 265783
Join Date: Dec 2010
Chapter/Region:
RMIC
Location: the fern behind the porn couch
Vehicle:2017 Forester XT Niner ROS 9 |
Quote:
1) That Cygnus Performance sticky thread about swaybars is a really good one. I went back and re-read your original post... I saw you might be interested in autox. you should research the various clubs doing them in your state and get familiar with the rules of the different classes. many clubs will hold a beginner's class weekend sorta thing. be aware that various mods will land you in various classes. i'd also encourage you to give it a try, even in stock trim. 2) if I personally wanted a nicely streetable mild autox setup, with no dirt driving, I would go 22mm/22mm sways, good SEALED endlinks such as Rallitek's or Cusco's, King standards, and an adjustable damper such as Feal or Cusco. Or even Koni's. Overall, I just prefer the flexibility an adjustable damper provides. you can dial then down for daily duty, or turn them up for cone dodging. 2a) from the reviews, Bilstein's sound like they would be awesome autox/street dampers. thinking of some of the other King threads, it seems the Bilstein's are a bit stiff for rallyx, but that is not a huge thing if you're not leaning that direction at all. Quote:
Quote:
here's a post from a great thread talking about it with a Koni insert/RCE black/wide body WRX install: https://forums.nasioc.com/forums/sho...7&postcount=56 |
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01-28-2020, 11:20 AM | #33 |
Scooby Newbie
Member#: 361832
Join Date: Jul 2013
Location: Canada
Vehicle:2011 Subaru STI DGM |
I'm referring to the '13 struts and springs.
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01-28-2020, 12:40 PM | #34 |
Scooby Specialist
Member#: 491095
Join Date: Sep 2018
Chapter/Region:
SWIC
Location: New Mexico
Vehicle:2009 STi Blue Blue |
I did this exact thing...the height was the same, couldn't really tell a difference myself and ended up getting ohlins...so I basically have a low mileage set of 13 sti springs/struts if anyone else wants to try it!
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01-30-2020, 09:28 AM | #35 |
Scooby Specialist
Member#: 128115
Join Date: Oct 2006
Chapter/Region:
South East
Location: Wilmington, NC
Vehicle:2008 STi Hatch OBP enginuity is cool |
This has been a very informative thread.
Thanks to the OP and to all the other input. |
01-30-2020, 12:50 PM | #36 | |
Scooby Newbie
Member#: 462296
Join Date: Feb 2017
Chapter/Region:
SCIC
Location: Riverside, CA
Vehicle:2003 Lexus IS300 2JZ 620HP/595TQ |
Quote:
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01-30-2020, 01:48 PM | #37 |
Scooby Specialist
Member#: 20952
Join Date: Jul 2002
Chapter/Region:
MAIC
Location: Baltimore, MD
Vehicle:BRZ & Datsun White & White |
delete
Last edited by AndyRoo; 01-30-2020 at 01:54 PM. |
01-30-2020, 01:48 PM | #38 |
Scooby Specialist
Member#: 20952
Join Date: Jul 2002
Chapter/Region:
MAIC
Location: Baltimore, MD
Vehicle:BRZ & Datsun White & White |
delete this too.
Last edited by AndyRoo; 01-30-2020 at 01:54 PM. |
01-30-2020, 01:53 PM | #39 |
NASIOC Vendor
Member#: 54202
Join Date: Feb 2004
Chapter/Region:
MAIC
Location: Elkridge, Maryland
Vehicle:ASK ABOUT NEW RCE SWAY BARS FOR STI |
Just jumping in now that our vendor status is back! GTWORX Bilsteins are not discontinued by any means. They are actually just now back in stock for GR platform. Great with stock STI springs and have been used successfully with the King lift springs for both rallyx and track days (thanks chimchimm5).
I'm personally getting into rallyx with my own personal car (a BRZ). We're developing a set of rallyx springs for that platform...weird maybe but definitely awesome. I'll be pairing with regular Bilstein B6 eventually. We would consider a similar type of spring for Impreza if the interest were there but that would take some time. You do not have to go massively big on spring rates or swaybars to have a lot of fun, nor do you need to lower the car a lot. The key is good quality dampers. A few key bushings and a good alignment help as well. - Andrew |
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