[kris]

Originally Posted by sutter2k

Whitelink ALK changes the geometry, but leaves the black squishy bushings in the control arm in place.

If want to replace that bushing with out changing the geometry, look for the 'Standard' kit SuperPro LCA Bushings.

SuperPro LCA Bushing Kit

Since the perrin legacy part is a direct drop in, the superpro's should work as well.

Interesting option...I would like to do this in steps, so this could be a good starting point. What's the difference between going with the SuperPro LCA Bushings and the AVO Caster Bushings

AVO Caster Bushings New Legacy WRX STI

[Madrider]

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[sutter2k]

Originally Posted by kris

Interesting option...I would like to do this in steps, so this could be a good starting point. What's the difference between going with the SuperPro LCA Bushings and the AVO Caster Bushings

AVO Caster Bushings New Legacy WRX STI

I don't think AVO offers a standard replacement that does not increase caster.
SuperPro LCA - has standard, offset, +1 for both sides

[polyol]

Originally Posted by Digitalfiend

Isn't the '08 caster already in the 6 range? I'd have to find the spec sheet print out again...it was posted here somewhere...

Interesting. 04-07's were typically around 5 +/- .5.

To the poster that asked...increased caster gives you the "driving on rails" feel. It improves straight line stability and and gives a self centering feel to the steering. I could be wrong but I beilieve it allows for improved camber gain in cornering.

[Digitalfiend]

Originally Posted by polyol

Interesting. 04-07's were typically around 5 +/- .5.

To the poster that asked...increased caster gives you the "driving on rails" feel. It improves straight line stability and and gives a self centering feel to the steering. I could be wrong but I beilieve it allows for improved camber gain in cornering.

I knew I saw it posted here...looks like 6.4x degrees or thereabouts:
Factory Alignment?



That's what makes me think it has to be something more than just caster affecting the steering feel.

[freeman]

For people who are complaining about the numb steering feel：
Lower your front tire pressures by 0.5psi a time,repeat as necessary until you find the right feel. Don't go more than 1.5 psi lower than factory recommended settings though.
( FYI:factory setting F:33psi R:32psi (~15 Celsius))

Try this,and you will be surprised by what you feel.

Seriously, the changes that made the most difference in steering feel for me is the front tire pressure settings.

Trust me, Before you shell out thousands of dollars for expensive suspension mods, play with your tire pressures first(especially front end for steering feel and response in this case), 1~1.5psi could make a very appreciable difference in steering feel.

It is a very simple fact that:

Lower pressure=larger contact patch=faster initial response for steering input=better ride

Unfortunately,lower pressure also = more tire distortion under load(will cause understeer at limit )= higher rolling resistance=use a little more fuel=burn your tires quicker

Knowing the Pros & Cons of different tire pressure settings,You can start to experiment with different numbers to find the best balance of steering response and cornering performance for you needs.

For DD or sprint driving : I would use factory setting or slightly lower(like 0.5~1psi lower) to get the best initial steering response at low speed and a comfort ride. Maybe i got a low reading tire pressure gauge, I found 0.5 psi lower than factory setting to be the best setting in term of steering response at low speed. The car feels very responsive and compliant,I feel very confident when i take my car to some unfamiliar and broken backroad.

(My alignment setting: Toes:0 all around | Cambers: F: -1'.0" R:-1'20'' | Caster: 6'30" )


For AutoX and technical road track: I would probably use 2~5 psi higher than factory setting depends on course layout. I don't care too much about the low speed steering response or ride comfort because i need better grip and handling at limit.

If i am still not happy with the steering feel after playing with the pressures, I would probably upgrade my tires first.

Sticky compound + stiff side wall would make a big difference in steering feel and response.

[HASTIhatch]

I definitely think that the tire pressure will do *something,* but I do fear that the problem we have with our steering runs much deeper than tire pressure. I'll try that out first, of course. But I wonder what can really restore the type of feel we're looking for... on my '03 M3, there was almost too much feel, such that it was borderline harder than I'd like to turn the wheel. But I really liked the connectedness I felt...