Lowered with H&R, cornerring issues

[boss351]

I have a 2003 TT with 24000 miles, stock suspension. Recently (1 month) lowered with H&R springs (#29385) and switched out to Work 19" wheels and appropriate tyres, and aligned. The ride height drop was a little over 1" all around and looks great. Ride is fine on regular bumps etc. If I take a corner hard, smooth surface, mid corner the car will shake, bouncing laterally, I feel the front slightly first but felt mostly in the rear. It is very unnerving and feels like I hit a bump mid corner.

I have read through posts on this forum and consulted with a local tech and owners, it seems like the H&R spring option with stock shocks, no other changes, has worked fine for many. No handling issues like mine.. Also read that really its needed to change the shocks at the same time as the springs, if this is the case I am willing to do that but would like to know for sure - will it fix my problem? I also want to confirm the correct shocks - the Billstein Sports Shocks?

Apart from shcoks, is there something else that I should be looking at?

Appreciate answers in advance.

[roadsterdoc]

Try driving it with your stock wheels and see how it behaves. If the problem goes away, then the new wheel width or offset is an issue. If the problem persists, then the spring rate is not a good match for your shocks (whether the shocks are worn or not is another question). GL. Let us know what you find.

[boss351]

Try driving it with your stock wheels and see how it behaves. If the problem goes away, then the new wheel width or offset is an issue. If the problem persists, then the spring rate is not a good match for your shocks (whether the shocks are worn or not is another question). GL. Let us know what you find.

Just to add, the Work wheels are 19x12 and 19x8.5, I am not sure of the actual offsets (and would like to know how to measure/check them now they are off). The wheels are made for correct fitment on 996TT or C4.. How do you take the actual offset measurement and what is correct for the 996TT?

I put the stocks on last night and went out for a quick drive. For sure the problem doesn't seem to appear in corners but admitedly I was not as comfortable pushing it has hard with these wheels as with the wider ones, I have a feeling I will need to push the car harder to see if the problem is still apparent or not. Going along some bumpy stretches of straight road it felt like the car would wiggle (not track) due to the bumps, it wasn't doing this on the Works..This could be due to the difference in the alignment effecting the stock wheels also now.. I'll drive it around for a few more days and see if the dreaded pogo side to side reappears.

Meantime, how to measure the offsets?

[boss351]

Bump and does anyone know if anyone makes spacers to rasie the ride height of the suspension?

I am really thinking my problem is the rubbing of the tires on the fenders during hard cornerring. If I could lift the ride height .25" or so I think I'd be set..

[raglem03]

u could make some small spacers, i've seen people do it before but honestly u should fix the problem properly. if u wanted to raise it get different springs, or the more expensive upgrade which would be to get full adjustable coilovers. I don't think ur problem is ur wheels hitting and bouncing or else u would have mentioned that u hear some kind of scraping.

u should go an alignment shop and get every single spec printed out on the car, make sure u are corner balanced. if everything checks out properly the same shop will be able to tell u what exact problem is causing this, obviously its not normal.

[boss351]

u could make some small spacers, i've seen people do it before but honestly u should fix the problem properly. if u wanted to raise it get different springs, or the more expensive upgrade which would be to get full adjustable coilovers. I don't think ur problem is ur wheels hitting and bouncing or else u would have mentioned that u hear some kind of scraping.

u should go an alignment shop and get every single spec printed out on the car, make sure u are corner balanced. if everything checks out properly the same shop will be able to tell u what exact problem is causing this, obviously its not normal.

The shudders turned out to be from the tires rubbing the fenders when the springs were under load in a corner. I went back to stock wheels/tires and never again a problem. It turns out the wheels are not 100% correct for 996TT though can be made to work with coil-overs or stock height. The offsets are very aggresive and push the wheels out approx. 1/2" more than normal.

[raglem03]

Most of the aftermarket wheels are made with an extra aggressive offset different then stock so the wheels do not look tucked at all. They are made to look flush with the fender yet still work with lowering modifications. I find it very odd that these wheels were made a little "off". My guess is that you need a crazy alignment with some camber adjustment, very aggressive. Interested in selling those wheels?

The shudders turned out to be from the tires rubbing the fenders when the springs were under load in a corner. I went back to stock wheels/tires and never again a problem. It turns out the wheels are not 100% correct for 996TT though can be made to work with coil-overs or stock height. The offsets are very aggresive and push the wheels out approx. 1/2" more than normal.

[boss351]

Most of the aftermarket wheels are made with an extra aggressive offset different then stock so the wheels do not look tucked at all. They are made to look flush with the fender yet still work with lowering modifications. I find it very odd that these wheels were made a little "off". My guess is that you need a crazy alignment with some camber adjustment, very aggressive. Interested in selling those wheels?

The shudders turned out to be from the tires rubbing the fenders when the springs were under load in a corner. I went back to stock wheels/tires and never again a problem. It turns out the wheels are not 100% correct for 996TT though can be made to work with coil-overs or stock height. The offsets are very aggresive and push the wheels out approx. 1/2" more than normal.

I called Work, they told me that the offsets for the wheels I have are for a 930 Turbo. Like you say, you can squeeze them in to a 996 TT or GT2 but it requires some work.

The original owner is taking them back from me. But thanks for the interest!

Some similar wheels on 6speedonline for sale here.

[996_Yorkshire]

Hi, I'm new in this forum.

I have an Audi TT Mk1 - 3.2 quattro DSG, but I hope to buy again a Porsche.

No experience with recent Porsche. In the past, 2.7 RS, Turbo 3.0, 928,SC.

If you put low springs without to change the shock too, the camber will be not correct,

with unusual tyres consumption.

In my TT quattro is no possible to correct the camber.

I hope that in the Porsche TT, this is possible.

Sorry for my weak english.

Bye :renntech:

Edited April 16, 2008 by 996_Yorkshire

[boss351]

Hi, I'm new in this forum.

I have an Audi TT Mk1 - 3.2 quattro DSG, but I hope to buy again a Porsche.

No experience with recent Porsche. In the past, 2.7 RS, Turbo 3.0, 928,SC.

If you put low springs without to change the shock too, the camber will be not correct,

with unusual tyres consumption.

In my TT quattro is no possible to correct the camber.

I hope that in the Porsche TT, this is possible.

Sorry for my weak english.

Bye :renntech:

The camber was brought back in again with an alignment after lowerring. The cornerring issue turned out to be caused by rubbing on the fender lips due to the aggressive offset of the wheels, I went back to stock wheels and cornerring is fine, I will firm it up some more though with a more stout sway bar shortly.