Handling!!! what next?
Are "ARB"s adjustable rear bars? As in anti-roll bars?
If the roads around where you live are really that bad, adding a super stiff rear sway bar may negatively impact overall handling (need more independent movement of suspension under rough roads).
IMO, adding stiffer springs, coilovers, etc. would only exacerbate the problem.
I say go back to the stock rear sway bar and add coilovers. The stiffer spring rate of the coilovers will control body roll sufficiently for your rough roads while still allowing more independent left to right movement of your suspension.
If the roads around where you live are really that bad, adding a super stiff rear sway bar may negatively impact overall handling (need more independent movement of suspension under rough roads).
IMO, adding stiffer springs, coilovers, etc. would only exacerbate the problem.
I say go back to the stock rear sway bar and add coilovers. The stiffer spring rate of the coilovers will control body roll sufficiently for your rough roads while still allowing more independent left to right movement of your suspension.
Thread Starter
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You're Despicable
Joined: May 2008
Posts: 6,167
Likes: 33
From: on a sand dune
Damn buddy, good luck on that, you should buy yourself a present after the exam, like exhausts or something lol just a thought 
ARBs = Anti-Roll Bars. I understand what you're saying, but I only get this problem with handling when going over VERY rough road and at pretty high speeds. the thing is the car will bounce and then when it lands back again it twitches more than I'd like it to. In the past I've noticed that an uprated coilover kit will help, but it will make the ride bumpier on bumpy roads. Does that make sense or does it seem like I contradicted myself?
Are "ARB"s adjustable rear bars? As in anti-roll bars?
If the roads around where you live are really that bad, adding a super stiff rear sway bar may negatively impact overall handling (need more independent movement of suspension under rough roads).
IMO, adding stiffer springs, coilovers, etc. would only exacerbate the problem.
I say go back to the stock rear sway bar and add coilovers. The stiffer spring rate of the coilovers will control body roll sufficiently for your rough roads while still allowing more independent left to right movement of your suspension.
If the roads around where you live are really that bad, adding a super stiff rear sway bar may negatively impact overall handling (need more independent movement of suspension under rough roads).
IMO, adding stiffer springs, coilovers, etc. would only exacerbate the problem.
I say go back to the stock rear sway bar and add coilovers. The stiffer spring rate of the coilovers will control body roll sufficiently for your rough roads while still allowing more independent left to right movement of your suspension.
ARBs = Anti-Roll Bars. I understand what you're saying, but I only get this problem with handling when going over VERY rough road and at pretty high speeds. the thing is the car will bounce and then when it lands back again it twitches more than I'd like it to. In the past I've noticed that an uprated coilover kit will help, but it will make the ride bumpier on bumpy roads. Does that make sense or does it seem like I contradicted myself?
Remember that stiffer anti-roll bars basically couples the left and right sides of your car and increases the spring rate. It's normal that when one side is not compressed evenly as the other side, there would be the "twitch" effect you're talking about.
Think about a diving board - one end is static and when you jump off the other end, you're thrown right up in the air. Now, imagine your left tire goes over a big bump. When this happens, with a stiff anti-roll bar, it's getting loaded up with with kinetic energy because the right tire is not moving in the same direction as the left tire. So, this may be what's causing the "twitch" you're describing.
People always think bigger, stiffer (no jokes please) is better for handling. While that may be true on billiard smooth surfaces, in the real world, with less than smooth roads, this may not be the case.
Think about a diving board - one end is static and when you jump off the other end, you're thrown right up in the air. Now, imagine your left tire goes over a big bump. When this happens, with a stiff anti-roll bar, it's getting loaded up with with kinetic energy because the right tire is not moving in the same direction as the left tire. So, this may be what's causing the "twitch" you're describing.
People always think bigger, stiffer (no jokes please) is better for handling. While that may be true on billiard smooth surfaces, in the real world, with less than smooth roads, this may not be the case.
Thread Starter
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You're Despicable
Joined: May 2008
Posts: 6,167
Likes: 33
From: on a sand dune
I understand what you're saying, and yes it would explain the twitch effect. Reason I asked about it in the first place is because I wanted to see if Coilovers would help. On previous cars I've either done the Coilovers first and then ARBs or both at the same time, I've never installed ARBs on stock shocks and springs so it would explain the "twitch" effect.
Although in this case I would say bigger is better, before the car handled like a mule, now it handles much better by that I mean "body roll" has dramatically decreased which was my main aim with the ARBs.
I just have to finish off and get the Coilies, hopefully soon and it looks like it'll be the JIC Magic coilies
Although in this case I would say bigger is better, before the car handled like a mule, now it handles much better by that I mean "body roll" has dramatically decreased which was my main aim with the ARBs.
I just have to finish off and get the Coilies, hopefully soon and it looks like it'll be the JIC Magic coilies
haha
While JICs are great (I have them myself), I wouldn't suggest them for your set-up. JICs are known for understeer, which in your situation will not help, and I would not recommend them unless you've at least reinforced your chassis.
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You're Despicable
Joined: May 2008
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Likes: 33
From: on a sand dune
Nicely done , do you feel any loss in power at low revs with the weather we're having?
humm, I don't quite understand, wouldn't understeer affect all of us the same? How is my situation different? 
, do you feel any loss in power at low revs with the weather we're having?
Thread Starter
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You're Despicable
Joined: May 2008
Posts: 6,167
Likes: 33
From: on a sand dune
LOL you know what I just realized what your screen name stood for, I always thought it was referring to Q8 like the Q7 car, but now I see it Kuwaiti drifter
Are you originally from Kuwait?
Are you originally from Kuwait?
Depending on the chassis mod, you'll get better response, better turn in, and a better steering angle... it all helps counter the understeer. The "problem" with this setup is the rear end wants to kick out whenever you step on the gas during any turns.
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Not sure if I'm understanding this right. If you drive over certain roads, the car seems to swerve in that direction? I have sways and coilovers and it does that sometimes, but the reason is my tires. Inner tread wear and rear tires need to be replaced.
But if you're looking for suspension upgrades, be smart, spend once, buy quality. If you suspension is really important, I would look into more expensive coilovers, not because they are expensive, but generally they are more quality, like the JIC. I went from Tein Basic, to Function and Form, to Ohlins.
Tein Basics felt like a good upgrade from oem, and F&F's were a good upgrade since I was able to adjust stiffness and slam it, but neither of them compare to the Ohlins. I can go pretty low if I wanted to, but I don't want to since I have the Karookie front. Performance wise, the basics and f&fs are like driving a Yaris while the Ohlins is like driving a Lambo. I'm not exaggerating either on that example either. I've been driven in a vehicle with JIC's and those are superb as well. The extra money spent is definitely worth it. On a softer setting and even on some tough roads the car rides smooth.
Next, i would do the GT spec bars.
realize the difference though. The GT spec bars are going to keep the body from rolling as much, while coilovers are going to affect how smooth/stiff your car rides.
But if you're looking for suspension upgrades, be smart, spend once, buy quality. If you suspension is really important, I would look into more expensive coilovers, not because they are expensive, but generally they are more quality, like the JIC. I went from Tein Basic, to Function and Form, to Ohlins.
Tein Basics felt like a good upgrade from oem, and F&F's were a good upgrade since I was able to adjust stiffness and slam it, but neither of them compare to the Ohlins. I can go pretty low if I wanted to, but I don't want to since I have the Karookie front. Performance wise, the basics and f&fs are like driving a Yaris while the Ohlins is like driving a Lambo. I'm not exaggerating either on that example either. I've been driven in a vehicle with JIC's and those are superb as well. The extra money spent is definitely worth it. On a softer setting and even on some tough roads the car rides smooth.
Next, i would do the GT spec bars.
realize the difference though. The GT spec bars are going to keep the body from rolling as much, while coilovers are going to affect how smooth/stiff your car rides.
Thread Starter
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You're Despicable
Joined: May 2008
Posts: 6,167
Likes: 33
From: on a sand dune
Ok I think I know what's happened here see below
Not sure if I'm understanding this right. If you drive over certain roads, the car seems to swerve in that direction? I have sways and coilovers and it does that sometimes, but the reason is my tires. Inner tread wear and rear tires need to be replaced.
But if you're looking for suspension upgrades, be smart, spend once, buy quality. If you suspension is really important, I would look into more expensive coilovers, not because they are expensive, but generally they are more quality, like the JIC. I went from Tein Basic, to Function and Form, to Ohlins.
Tein Basics felt like a good upgrade from oem, and F&F's were a good upgrade since I was able to adjust stiffness and slam it, but neither of them compare to the Ohlins. I can go pretty low if I wanted to, but I don't want to since I have the Karookie front. Performance wise, the basics and f&fs are like driving a Yaris while the Ohlins is like driving a Lambo. I'm not exaggerating either on that example either. I've been driven in a vehicle with JIC's and those are superb as well. The extra money spent is definitely worth it. On a softer setting and even on some tough roads the car rides smooth.
Next, i would do the GT spec bars.
realize the difference though. The GT spec bars are going to keep the body from rolling as much, while coilovers are going to affect how smooth/stiff your car rides.
But if you're looking for suspension upgrades, be smart, spend once, buy quality. If you suspension is really important, I would look into more expensive coilovers, not because they are expensive, but generally they are more quality, like the JIC. I went from Tein Basic, to Function and Form, to Ohlins.
Tein Basics felt like a good upgrade from oem, and F&F's were a good upgrade since I was able to adjust stiffness and slam it, but neither of them compare to the Ohlins. I can go pretty low if I wanted to, but I don't want to since I have the Karookie front. Performance wise, the basics and f&fs are like driving a Yaris while the Ohlins is like driving a Lambo. I'm not exaggerating either on that example either. I've been driven in a vehicle with JIC's and those are superb as well. The extra money spent is definitely worth it. On a softer setting and even on some tough roads the car rides smooth.
Next, i would do the GT spec bars.
realize the difference though. The GT spec bars are going to keep the body from rolling as much, while coilovers are going to affect how smooth/stiff your car rides.
I've dodged numerous coke cans being thrown out of windows,
dodged the $hitest drives you'll EVER encounter,
as well as dodging people crossing the damn road in front of you on the motorway!!! (this happened today for the first time) scared me ****less!!
, humm had some guy near swipe me out clean in a roundabout.
I've become best friends with my horn and the flashing xenons,......Sorry I had to rant it really does get my bloody pressure boiling.
Oh forgot to say, on corners and not straight roads I would say the car right now generally understeers when pushed, so that needs sorting as well.
Oh and donpisto $2,000 for coilovers isn't quality!!!
How much are these Ohlins? and first time I hear of them, but judging by my quick googly search they seem ace , know any stores that sell these?
... but when I start taking the bracings off, I start getting more understeer... but I also forgot this forum is for the newer gen sedans too...
Last edited by dofu; Jun 10, 2009 at 12:58 PM.
