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Old 11-17-2006, 01:41 AM   #1
BlackPearlX
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Default Prodrive Springs + Rear WhiteLine Sway 20mm = ?

I want to put Prodrive Springs and rear sway bar on my Xmas list... but I wanted to check if anyone had this particular set up before I do that...

WRX must have loweing springs and rear sway to limit amount of body roll and give some stability on turns... as well as better tires than re92.... but what about front sway bar? I feel that wrx understeers too much and by putting front sway, I will make it understeer even more...

I could not find wrx with above specs in my area, so I was wondeing if anyone drives their wrx with springs and only rear sway... Is there a need for a front one or do u think it is a waste of money...

thanks
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Old 11-17-2006, 03:25 AM   #2
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The prodrives + 20mm rear is a good combo. I wouldn't go any higher in the front until you get a bigger rear bar. You'll want to keep the rear the same as or slightly larger than the front.

I have a 24mm rear bar and the stock front right now.
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Old 11-17-2006, 06:48 AM   #3
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It really boils down to how you drive the car and how you want it to handle.

Installing a larger front bar will raise cornering grip limits, and only increases understeer when those limits are reached.

A major cause of understeer in the Impreza is the front tires' camber curve -- an anti-lift kit is a simple and very effective solution.
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Old 11-17-2006, 11:31 AM   #4
EnterTheDragon
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Get an adjustable bar 20-22-24 such as a whiteline and then you can adjust accordingly.
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Old 11-17-2006, 12:15 PM   #5
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Quote:
Originally Posted by Spenk View Post
It really boils down to how you drive the car and how you want it to handle.

Installing a larger front bar will raise cornering grip limits, and only increases understeer when those limits are reached.

A major cause of understeer in the Impreza is the front tires' camber curve -- an anti-lift kit is a simple and very effective solution.
DINGDINGDING!!!
Spenk gave you the winning answer.

You are correct in your thinking that a front bar will increase understeer, but that is more than offset by the really crappy dynamic camber curve on these cars.
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Old 11-17-2006, 12:30 PM   #6
uathatis
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i think a 20mm rear bar is a mininmum... just cause 20/17 setup is just so strange usdm factory shi((

prodrives stiften a little.. i think the guessed springrates are around 180/180ish

with the stiffer up front that will help the camber stay the same and allow much less understeer. likewise same for the back

i think my 225/195 rate springs helped more than my 20mm rsb for the turn in

turning with springs was way more balanced and limits were MUCH more predictable with my setup right now

more gas = nuetral to a small amount of oversteer perhaps...

since the prodrives are ... a smallish spring upgrade, having a larger bar up front would probably be great.


but don't listen to me, i'm just a n00b

at worst... if the 22mm adj whiteline swaybar on front with the 20mmrsb is too much understeer for you... just put it on the softest setting until you get a 22 adj rear bar

IBi'm getting22fsb first then 24 adj rsb...

is it right ot think it takes more stiffness in the rear for a wagon to swing a little bit of that extra weight
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Old 11-17-2006, 05:05 PM   #7
bzbuzz
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I also have a Prodrive springs with stock tires. And got oem 20mm rear sway bar installed last week. I really like the tighter feeling on rear and oversteer. I used to have 37f/35r tire pressure, but now I adjusted it to 35f/35r so reduced oversteer little bit to more neutral. While enjoying it, I feel front of my car is loosing traction more. so, I ordered 22mm whileline front sway bar to see if i could get tigher feeling on front. i am a noob so correct me if i am wrong.
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Old 11-17-2006, 06:31 PM   #8
BlackPearlX
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Thanks for responses guys! They were helpful

ButtDyno to me:

"I have a huge freakin front bar and a 17mm rear bar (smaller than stock).
I am also running crazy stiff springs. To make the understeer go away you
want a decent sized front bar too, as well as a good alignment, maybe -2
in the front. Maybe camber bolts."
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