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Decent track suspension..?

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Old Jan 3, 2008 | 08:39 AM
  #46  
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From: Yorklyn, DE
Ahh, yes... the tried and true "if you can't adjust it, bend it" method.

There was a guy that was almost protested at Nationals last year because his camber was significantly more negative than anyone else with that type of car. Turns out it was just an old car with a ton of miles on it.
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Old Jan 3, 2008 | 08:41 AM
  #47  
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From: Behind the Orange Curtain
Originally Posted by DaWorstPlaya
JICs have had failures on Subarus, not saying it will happen on EVOs as their quality testing might have improved over time ... But its not something I would like to think about while driving on the track
Yeah, neither would I.Thanks for ruining my day
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Old Jan 3, 2008 | 08:43 AM
  #48  
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From: Socal
Originally Posted by GTLocke13
My confusion is how a suspension guy sets up a stock suspension. There's nothing to adjust, other than alignment.
Yes, of course alignment.
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Old Jan 3, 2008 | 08:45 AM
  #49  
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From: Behind the Orange Curtain
Originally Posted by GTLocke13
Ahh, yes... the tried and true "if you can't adjust it, bend it" method.

There was a guy that was almost protested at Nationals last year because his camber was significantly more negative than anyone else with that type of car. Turns out it was just an old car with a ton of miles on it.
I got protested once because I was running 8's and 9's (wheel width). The rule stated that you could only run wheels that would fit with the stock flares. I had stock flares, mind you they'd been rolled with a freakin baseball bat, but the rules said nothing about not being able to roll 'em. Ahhh memories
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Old Jan 3, 2008 | 08:58 AM
  #50  
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From: FL
Originally Posted by donour
It's funny you mentioned this because I just ran the
I have matlab progams if anybody wants them or wants to run the numbers on a different car/input.

d
PM Sent...

And anyone know the unsprung weight for stock evo?
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Old Jan 3, 2008 | 09:58 AM
  #51  
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From: Yorklyn, DE
Originally Posted by toovira
And anyone know the unsprung weight for stock evo?
https://www.evolutionm.net/forums/sh...nsprung+weight
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Old Jan 3, 2008 | 10:54 AM
  #52  
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hey kevin,

pca member here and a sport biker, i was in the same dillema. before you line someone's pocket. you wanna go for a short, quick, hill climb? you can check out my set-up.
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Old Jan 3, 2008 | 01:04 PM
  #53  
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Originally Posted by fastkevin
Yeah, neither would I.Thanks for ruining my day
You are welcome! But seriously talk to Mueller about those concerns as I said it could be a non-issue on the EVO. Just as the KW front bracket bending on the Suby is apparently a non-issue on the EVO given the shorter bracket length.

Originally Posted by donour
I know, right? It's a steal, but there's no buzz on evom about them. As far as I can tell I think mine will be the first evo set -- with every bell and whistle. The best thing of all is the support. You should see my inbox. I have pages and pages of crazy ideas and questions to steve.

d

My guess is, the Subaru suspension world is a little different from the EVO world. There weren't many affordable solutions from Ohlins, Motons, JRZ, KWs or bilstein for the WRX platform when I was driving a WRX. Neither were they well known among the community. Most people just ended up getting Teins, Cuscos or <insert random JDM company here>. Naturally if you've been subjected to Teins and get a chance to try something a little more high end that doesn't rattle your fillings loose while driving on the street, word is going to spread about that. I'm under the impression that Zzyzx brought race level Koni shocks to the Subaru community and word travelled through the grapevine. Eg: look at the price of Bilstein PSS-9s on the WRX they are still outrageously priced (if you can find them).

On the other hand, the EVO got off to a good start with plenty of well known suspension tuners Muellerized, Robispec, Paul Gerard. The EVO also got quick access to some relatively high end stuff eg: Ohlins, Motons, DMS, KWs and prices weren't as outrageous. That is probably why Zzyzx isn't as popular with this community ...

Originally Posted by GTLocke13
There was a guy that was almost protested at Nationals last year because his camber was significantly more negative than anyone else with that type of car. Turns out it was just an old car with a ton of miles on it.
I guess you are refering to the Mini driver ...

Originally Posted by GTWORX.com
I've seen 12k/14k stiff *** coilovers with 245 Falkens .....weak!

- Andrew
What chuu talkin' about Willis! .... (edited for more dramatical effect)
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Old Jan 3, 2008 | 05:08 PM
  #54  
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From: Behind the Orange Curtain
Originally Posted by evoone
hey kevin,

pca member here and a sport biker, i was in the same dillema. before you line someone's pocket. you wanna go for a short, quick, hill climb? you can check out my set-up.
You local?
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Old Jan 3, 2008 | 06:23 PM
  #55  
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From: IL, USA
Originally Posted by GTLocke13
Here's how the theory goes on suspension setup, just so you know.

1) Figure out what natural frequency you want. Ideal is around 2.2-2.5 Hz, I think (but don't quote me). Do some research and you'll find plenty of info.

2) The natural frequency is determined by the unsprung weight and the spring rate. You can measure your unsprung weight. This will tell you the spring rate you need.

3) The ideal shock valving can be figured once you know the spring rate and unsprung weight.

There are a ton of details I'm glossing over, but that's the meat of it. Its a second-order differential equation with three constants, two of which you are free to mess with.
Minor correction (but it makes quite a big difference in your resulting calculations): you want sprung mass, not unsprung mass to calculate natural frequency.

Also to clarify, frequencies are chosen for each end of the car so you will end up with two values, sometimes they are the same but most times they are not.
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Old Jan 3, 2008 | 06:32 PM
  #56  
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Originally Posted by fastkevin
You local?
yep, i'm in SGV, i sometimes roll down to the OC, was down in HB sat. doing some banking.
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Old Jan 3, 2008 | 07:08 PM
  #57  
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From: Behind the Orange Curtain
My biz is in Buena Park, and I live in Orange. What setup are you running?
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Old Jan 3, 2008 | 07:35 PM
  #58  
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From: NNJ
Originally Posted by DaWorstPlaya
You are welcome! But seriously talk to Mueller about those concerns as I said it could be a non-issue on the EVO. Just as the KW front bracket bending on the Suby is apparently a non-issue on the EVO given the shorter bracket length.
Taking it back to the old school... There seem to be a few incidents with Suby JIC applications in 2004 and maybe even 2005. There haven't been too many with Evos so it seems - maybe I didn't search well.

People modify things, install parts wrong, buy used parts, etc... Considering the guy didn't know what material his strut was and admitted to seeing a crack but still entered a competition, are you going to give him much credibility?

JIC's definitely qualify as a decent track suspension per the original post.
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Old Jan 3, 2008 | 07:41 PM
  #59  
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From: Spec Ops
if you haven't track before i highly recommend tracking your evo stock or get a rear swaybar. Sorry canyon run don't count lol
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Old Jan 3, 2008 | 09:54 PM
  #60  
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Originally Posted by vboy425
if you haven't track before i highly recommend tracking your evo stock or get a rear swaybar. Sorry canyon run don't count lol
please read fastkevin's first thread very carefully. you should of sat at the front of the class when you where in school.
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