Suspension ride height
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Re: Suspension ride height
Out of interest does anyone know what material was the original bushes made of.
Hopefully not plastic?
With so many people having this problem. The bushes are obviously not up to the job.
I can feel another trip to the machine Shop in the near future to have some bushes made.
Hopefully not plastic?
With so many people having this problem. The bushes are obviously not up to the job.
I can feel another trip to the machine Shop in the near future to have some bushes made.
- IchBautAuto
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Re: Suspension ride height
I was told / assured that the PSS9 info is the same. It is second hand info as I don't use PSS9 on either car. I've reduced it to a thumbnail sketch plus some attempted explanation but it's probably the accent that is confusing you. The vehicle is stationary in all instances and no dynamic forces are applied. There is the damper body, piston rod and spring pack if you use your imagination.
A. The assembled damper on the bench at factory height setting. The assembled spring length is at it's longest.
B. The assembled damper at factory height setting installed on the car loaded with corner weight (i.e.car sitting on the ground)
C. The assembled damper with lowered ride height on the car loaded with corner weight
D. The assembled damper with raised ride height on the car loaded with corner weight
E. The assembled damper with the piston rod fully extended and additional spring preload on the car loaded with corner weight (don't know if this is even possible).
The spring length is at it's longest at A.
The spring length is identical in B, C and D, as long as no restriction is on the piston rod through bottoming or topping out.
The spring length is theoretically at it's shortest in E as it is pre loaded even with the corner weight applied.
Lets assume the front left and right corner weight is 550 KG each, so the spring pack will deflect / compress a set amount for that applied weight. No matter if the ride height is at factory, lowered or raised, the spring pack length will remain constant while the vehicle is stationary if the piston rod is free to move.
Within the range of adjustment AND with the piston rod neither bottoming nor topping out in use, the only variable is the damping. Constrained purely by the corner weight, the spring pack will always be the same fitted length.
So, the factory appear to have a very tight limit on ride height adjustment, no doubt for some design reason, and some users have issues with ride height adjustment outcomes. All I'm attempting to get across is a minor raising of the ride height cannot in itself change the spring rate, which seems to be a bit of a myth floating around. The choice of dampering settings or the condition of the helper spring may have some part to play in perceived ride harshness.
C5 RS6, Milltek and Wagners: B5 RS4 450 + HP: A4 1.8 GP TQS original: 1963 UNIMOG 404:
Re: Suspension ride height
Best bet is ask Grizz. As said before, he used to have some made for him so he's your best bet Steve.steve2003rs6 wrote: ↑Mon Jun 14, 2021 9:47 pmOut of interest does anyone know what material was the original bushes made of.
Hopefully not plastic?
With so many people having this problem. The bushes are obviously not up to the job.
I can feel another trip to the machine Shop in the near future to have some bushes made.
previous- Pug 205 gti, 306 gti, 309 gti Goodwood.
Audi S3, S4 V8 avant.
Porsche Macan Turbo.
Gone but NEVER forgotten - C5 RS6 Misano red avant.
Now - Empty garage
If you don't know where you're going, any road will take you there!
Audi S3, S4 V8 avant.
Porsche Macan Turbo.
Gone but NEVER forgotten - C5 RS6 Misano red avant.
Now - Empty garage
If you don't know where you're going, any road will take you there!
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Re: Suspension ride height
Thank you dunc.
I will be in Neston very soon so will see what grizz recommends. Cheers mate.
I will be in Neston very soon so will see what grizz recommends. Cheers mate.
Re: Suspension ride height
Ok. I see what you are saying now. Thanks for the diagrams.
Yeah, I think you might be right. I do seem to remember being surprised that when I wound the spring seat up it didn’t raise the car by the same amount though. At least that was my impression. Long time ago now admittedly.
So with the car raised as high as OE which is more than the TÜV specs I should have plenty of travel. Maybe what I’m experiencing is the piston rod hitting the end of travel then.
/I remember that I called Bilstein UK to see if it would be a problem to go outside the recommended height range. They said no, but they sounded a bit doubtful about most things I asked.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
- IchBautAuto
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Re: Suspension ride height
Despite all that was said there remains a few potential influencers like shorter damper body? the way the valving works internally and so on. I'd hazard a guess that those who have accepted the factory settings are most happiest with the outcomes but low riding isn't for all of us, nor the non-track road surfaces and obstacles that abound.
C5 RS6, Milltek and Wagners: B5 RS4 450 + HP: A4 1.8 GP TQS original: 1963 UNIMOG 404:
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Re: Suspension ride height
Just itching to try the cable tie fix to see if the pedal box is my problem.
Re: Suspension ride height
Cable ties are useful. Might work on your wife too next time she starts to complain about costs of RS6.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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Re: Suspension ride height
Now that’s a good idea.
Cable tie her to the 4 poster.
Then I can disappear to the living room
And watch the football in peace.
Cable tie her to the 4 poster.
Then I can disappear to the living room
And watch the football in peace.
Last edited by steve2003rs6 on Thu Jun 17, 2021 7:19 pm, edited 1 time in total.
Re: Suspension ride height
I'm baffled as to why you haven't done it yet Steve! Get on it, it'll take you 20 minutes maximum.steve2003rs6 wrote: ↑Wed Jun 16, 2021 1:16 pmJust itching to try the cable tie fix to see if the pedal box is my problem.
previous- Pug 205 gti, 306 gti, 309 gti Goodwood.
Audi S3, S4 V8 avant.
Porsche Macan Turbo.
Gone but NEVER forgotten - C5 RS6 Misano red avant.
Now - Empty garage
If you don't know where you're going, any road will take you there!
Audi S3, S4 V8 avant.
Porsche Macan Turbo.
Gone but NEVER forgotten - C5 RS6 Misano red avant.
Now - Empty garage
If you don't know where you're going, any road will take you there!
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- Top Gear
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Re: Suspension ride height
Yes dunc. Will do it tomorrow. Busy ish day today. Very Busy day Friday.
If it works I just know I will have to do a permanent remedy. Be it at Neston or with the help of some friends.
If it works I just know I will have to do a permanent remedy. Be it at Neston or with the help of some friends.
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Re: Suspension ride height
All done today. 5 cable ties fitted. Now to see if it works.
Fingers crossed.
The step by step guide was spot on and made the process very easy.
Fingers crossed.
The step by step guide was spot on and made the process very easy.
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Re: Suspension ride height
How far is the test drive? Come on, how did it go???steve2003rs6 wrote: ↑Thu Jun 17, 2021 2:31 pmAll done today. 5 cable ties fitted. Now to see if it works.
Fingers crossed.
The step by step guide was spot on and made the process very easy.
I also have to do the cable tie job, always felt like the firewall was about to disconnect from the car when i first experienced it, thought i had bought a dog so was glad to see that there was a fix for this
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Re: Suspension ride height
Foxmeister.
One hell of a test drive on Britain’s worst road. The A180 from Barnetby top to cleethorpes.
No noise or any vibration through the steering column.
Just pure joy.
Cannot believe the transformation
If I had known about this fix before it could have saved me a lot of money.
And yes. It did take 20 mins.
Thank you all for letting me know about this fix.
Forever grateful
Ps
Didn’t want to stop driving I just kept on going. Steered at all the crap surfaces and it was soooooo pleasant. This has got to be the best tip ever.
Also hit the 300 yards of speed retarders at 60 mph unbelievable not a murmur. Usually have to reduce my speed to 30 mph and allow fiat punto,s to overtake me on this section.
One hell of a test drive on Britain’s worst road. The A180 from Barnetby top to cleethorpes.
No noise or any vibration through the steering column.
Just pure joy.
Cannot believe the transformation
If I had known about this fix before it could have saved me a lot of money.
And yes. It did take 20 mins.
Thank you all for letting me know about this fix.
Forever grateful
Ps
Didn’t want to stop driving I just kept on going. Steered at all the crap surfaces and it was soooooo pleasant. This has got to be the best tip ever.
Also hit the 300 yards of speed retarders at 60 mph unbelievable not a murmur. Usually have to reduce my speed to 30 mph and allow fiat punto,s to overtake me on this section.
Last edited by steve2003rs6 on Thu Jun 17, 2021 7:22 pm, edited 4 times in total.
Re: Suspension ride height
Really glad you got it sorted ! Also glad it's a good cheap fix for once !
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