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chassis & suspension tweaking - Audi A3 & TT parts using on Mk.VII Golf/GTI/R

Dave10781

Dave10781

Go Kart Champion
Location
Austin, TX
breaking badly said:
New or used, Dave? Best deal usually is find one at your local breaker yard
or on Ebay.
Like any sort of cars Audi A3/S3 (8V generation) happen to have accidents.
If rear ended, the front section will still be pretty.

;)

Did anyone consider getting the subframe polished? To be honest, I do... :p
Currently I'm looking for a shop in my area blasting by using wale nut shell.
Click to expand...

I'd probably need to get a new one, but I'll start asking around for good junk yards. Is the aluminum (or aluminium) subframe significantly stiffer than the steel one? I'm not exactly going to expect much out of a 6lb difference -- I have a 22lb hitch mounted on the rear of the car after all.
 
breaking badly

breaking badly

Banned
Location
St. Olaf
Anodizing (for which lots of colors are available) after walnut shell :p
blasting is a pretty good idea, but it'd make it even more expensive.
It's still a chassis part which I don't see most of the time.

Dave, hard to name exact figures here. It's lighter, it's stiffer, but
I unfortunately don't feel able to promise you (or anyone else) will
feel the difference. I will try that piece next spring and report back.
'2015WhiteGTI' convinced me it'll be worth it.

;)
 
D

DaemonVrs

New member
Location
Europe
Did some research and it seems the clubsport s swivels are the same as the audi TT ones.
The front of the clubsport s is made of:
Audi a3/s3 tt aluminium subframe
Swivels bearings audi tt
brake discs with aluminium hat

What about the control arms are they aluminum?
And also can someone with the latest etka check if the steering rack, tie rods and tie rod ends are the same as a regular gti/r

If they are the same we can fit the tt swivels without any problem
 
J

jmason

Go Kart Newbie
Location
Frederick, MD
Bebevrs said:
If they are the same we can fit the tt swivels without any problem
Click to expand...
What about the axles? The splines could be different.
 
breaking badly

breaking badly

Banned
Location
St. Olaf
Bebevrs said:
Did some research and it seems the clubsport s swivels are the same as the audi TT ones.
The front of the clubsport s is made of:
Audi a3/s3 tt aluminium subframe
Swivels bearings audi tt
brake discs with aluminium hat

What about the control arms are they aluminum?
And also can someone with the latest etka check if the steering rack, tie rods and tie rod ends are the same as a regular gti/r

If they are the same we can fit the tt swivels without any problem
Click to expand...
You can very most probably fit CSS swivels without any issues,
as long as you use TT wheel bearings with them. I don't think
these swivels are TT parts though since they use a 5Q number
instead of 8S numbers.
Unfortunaty CSS control arms are still pressed sheet steel. The
only difference to the standard Golf control arms are their solid
rubber bushings. The same applies to the CSS rear control arms.
On a quick look they look the same as standard.
To my current knowledge, steering rack is the same as on any
GTI/GTD/R (progressive steering). Bear in mind different swivels
could alter steering ratio if the length of the 'steering arm" is
somewhat different. This has been the case on the former PQ35
platform, where S3 swivels made a slightly shorter steering ratio
compared to Golf. Well, currently we only know about the added
camber.

I did that for you and all those interested:





I think springs and and roll bars shouldn't be as interesing since
most prefer aftermarket parts anyway. On the regular Clubsport
(non-S) these components even more are depending on gearbox,
door count and equipment. It's little too complex to list them all.
 
D

DaemonVrs

New member
Location
Europe
Thank's a lot for all the info!
When summer hits I will buy a pair of swivels. The lower roll center and the added camber should feel a lot better.
I know about the mk5/6 platform,I Have an mk5 with tt swivels arms and sterring rack.

By the way on the old platform the track is wider with that setup, is it the same with the clubsport does it have a wider track?
 
breaking badly

breaking badly

Banned
Location
St. Olaf
Sadly there's no offcial data published besides power and torque,
but I don't think track width figures are any different. Take o look
at the photos and you'll see the Pretoria wheels sit where they do
on an R. I'm pretty certain a difference of 5 mm would be visible
as it's visible with aftermarket ET45 wheels.
 
Y

Yumichika

Passed Driver's Ed
Location
PLA
Bebevrs said:
Thank's a lot for all the info!
When summer hits I will buy a pair of swivels. The lower roll center and the added camber should feel a lot better.
I know about the mk5/6 platform,I Have an mk5 with tt swivels arms and sterring rack.

By the way on the old platform the track is wider with that setup, is it the same with the clubsport does it have a wider track?
Click to expand...

Have you got them yet? How's the feeling?:D I'm also looking for a lower roll center solution and I have a same plan about the swivels.
 
D

DaemonVrs

New member
Location
Europe
Not yet.sorry for the late reply.I was waiting on css swivels info and for some little camber and no roll center rise or bumpsteer correction they are not worth it in my opinion.
The only thing that is putting me of on the tt swivels and arms is the wider track.So you will hace to do back swivels as well to balance the car.Wich means new wheels if you allready have some sitting flush with the body.
Also tie rod ends seem to unscrew a lot.maybe the tt has other steering rack tie rods an so on like on the mk5/6 platform.
 
Y

Yumichika

Passed Driver's Ed
Location
PLA
So you must have read thread about CSS swivels :
http://www.golfmk7.com/forums/showthread.php?t=29309&page=2

That's interesting because I am keen on roll center and correction rather than camber :D

Yes you are right about the issue of tie rod. I'm not sure whether I should do any fixing on it.

Since what I concern about is roll center, I prefer to change as few pieces as possible besides TT swivels. But unfortunately, my car is A3 with iron swivels, 50mm shocker struts, 80mm bearings. Shockers must be changed, but I'm not sure about the bearing. The stock LCA ball joints may be reused since I don't want to change LCAs. Ball joints of tie rod seems to be the same, but the length of tie rod should be longer as you mentioned. If the tie rod need to be screw out less than 20mm, it would be all right to just reuse stock. The last thing is brake, but I just know nothing about that.

It would be magnificently helpful if there is any further info about that!
 
breaking badly

breaking badly

Banned
Location
St. Olaf
Probably good to share this information at this place:


CZR said:
Anyone running the S3/TTS aluminium subframe should also use these: WHT006844 (2 pcs). This part shows up in ETKA for every model running aluminium subframe (A3, S3, RS3, TTS, Passat, Leon, etc). I would also recommend new bolts.

Click to expand...
 
A3SBQ

A3SBQ

Ready to race!
Location
Norway
We should have a complete list of necessary install parts for the aluminum subframe.
A complete installation kit with all screws and washers.
Can some one help out with this?

I have bought the subframe and CSS swivels and TT bearing.
I'll be installing the lot together with full SuperPro bushing and LCA. Hope to do this by the middle of June.
 
A3SBQ

A3SBQ

Ready to race!
Location
Norway
Hi guys.
What about rear TT control arms?
The info of increasing the width is interesting.
Many people are using 10-15mm spacers rear today.
I don't fancy the spacers and would love to have a stock wider track at the rear.
Any information on how mutch they will increase the width?
Also any part no on this?
 
breaking badly

breaking badly

Banned
Location
St. Olaf
A3SBQ said:
We should have a complete list of necessary install parts for the aluminum subframe.
A complete installation kit with all screws and washers.
Click to expand...
This is no doubt a great idea. I would highly appreciate it if you'd
write a DIY. ;)



A3SBQ said:
What about rear TT control arms?
The info of increasing the width is interesting.
....
Any information on how mutch they will increase the width?
Click to expand...
I don't remember any 'rear TT control arm' discussion if we had one,
however I do remember the former platform TT (8J) had the same
rear control arms as Golf and A3 used to have. The increased width
has been realized by using wider (aluminium) wheel carriers:





http://forums.vwvortex.com/showthread.php?7018526-Rear-Wheel-Bearing-Housing

That said, I'd bet you could do the same on a current MQB Golf or A3
if the wider track width doesn't cause fitment issues. ;)


.
 
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