Author Topic: My A3 Sportback Progress Thread/Diary  (Read 21849 times)

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Offline schattenblau

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Re: A3 Sportback Build Thread/Diary
« Reply #15 on: March 11, 2013, 01:39:51 pm »


how do those tyres stay on the rim ?

 ???

Offline SOFTLAD

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Re: A3 Sportback Build Thread/Diary
« Reply #16 on: March 11, 2013, 01:56:34 pm »
how do those tyres stay on the rim ?

 ???

MAGIC!!! ;)


Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #18 on: March 18, 2013, 10:44:38 pm »
Have a few more parts accumulated and they will be fitted by the end of the week.






I will try and explain the reasons I have purchased these items below and for what purpose so excuse the essay.
I know it is easy to buy a bunch of performance parts and throw them at a car hoping a track weapon will magically be created. I will admit some of these items are probably overkill as I don't intend to track the car at this stage but they are also parts I would likely have replaced with OEM parts at some point in the near future either way. I am no suspension or brake expert by any stretch but have done a fair bit of research on these parts, so I would expect to get a good result out of them. Will try avoid any mod justification/placebo effect after the install. All of the suspension and brake parts are going in at the same time so it will be a bit difficult to 'review' any one part, just the end result.

SUSPENSION:
Whilst the engine mounts and suspension parts I have on the car currently have given a massive improvement, there is still a few parts I think should be replaced as I have done 114,000kms, the car is 7 years old and also to complete the handling package. There is a few annoying clunks and I would like to improve steering feel and tighten everything up. In addition to the below, I will also be replacing tie rods and ball joints with genuine parts. This will mean that almost every suspension part or engine/trans mount that wears in the front end will have been replaced after this round of mods.

I think that VAG has created a car that handles/performs very well out of the box in the MK5 GTI/8P platform and its not just about 'slamming' the car on cheap coilovers or springs - if you are in fact wanting good performance out of your car. I can definitely see a benefit in replacing wear components with heavier duty parts and parts specifically designed for a lowered car and performance orientated setup.

Whiteline FSB Adjustable End Links - KLC167:

The stock end links do wear and start to get noisy and would have been a part I replaced with stock items at the least when doing a suspension refresh. They are also not designed for a car that is lowered and especially not a car that is lowered 50-55mm from stock at the front. The existing OEM front sway bar will have a fair amount of preload on it with OEM end links which can affect handling and the stock parts will also be working at an angle they aren't intended for (not sure if thats a major issue or not). Whiteline end links are a LOT beefier and are of course adjustable so any preload can be dialled out. Im not sure I will get a huge amount out of this mod but either way I will feel better having it on the car and the cost was only about $50 more than OEM.

Whiteline Bump Steer Correction Kit - KCA314A

I was on the fence about this mod, but once again the cost wasnt a huge amount more than OEM and there is some features I feel will be beneficial. The first outing (KCA314) had an issue with the dust seals cracking but I understand this has been fixed for the KCA314A. I dont get a huge amount of bump steer currently but it is definitely there in certain situations. Like the above end links, this part is designed for a lowered car and corrects the caster that is thrown out by lowering from what I understand.
I will be happy if I get better steering feel/feedback. These replace the OEM tie rod ends and Whitelines sales pitch is below:

Quote
Reduces factory toe out from 5mm to 0mm (at 40mm bump).

Whiteline’s bump steer kit is designed to change bump steer characteristics depending on driving conditions and is achieved via extended tie rod ends (KCA314) or by a combination of mounted spacers to reposition the steering rack. For racing it is beneficial to reduce the amount of bump steer to give a more positive feel, sharper handling, and reduced understeer. This kit is essential for lowered cars.

Whiteline Trailing arm front bushes - W0504:

I havnt replaced any bushes in the rear end to date and have experienced a slight floaty feeling in the rear when cornering at 100kmh. Apparently these tighten the rear end of the car up and reduce this, along with giving a more precise feel. I was tossing up between these and the new 034 Motorsport Spherical bearing kit, as poly in this application can bind and pack/wear relatively quickly (from what 034 says). However the 034 product costs 3x the price and may end up being noisy. I brought this up with a tech at Whiteline in Australia before purchasing and they assured me that a spherical bearing is not the best option for street, they would have warranty issues and this product "continues to perform well in the market".

Tyrolsport Deadset Rigid Collar Kit

This product gets rave reviews within the 'MK5/A3 community' and not only eliminates any subframe clunking, it also tightens up the front end further, reducing slop and improving handling. More information on the concept is here: http://www.rigidcollar.com/what-is-rigid-collar
It isnt cheap but I am confident that I will get the result im looking for and get rid of that annoying low speed clunk!

Quote
You can finally eliminate the subframe clunk that VW/Audi was never able to resolve. The OEM TSB “fix” does not address the root cause of the clunk because it reuses the OEM hardware. It’s not long before the clunk returns.

The failure of the OEM bolts is one of the primary causes of the subframe clunk, and they must be replaced. We have worked with world renowned fastener company ARP to develop custom hardware for this application. The bolts meet National Aerospace Standard for tensile strength yet mimic the oem hardware in shear.They are then nitrided for increased durability.

Our collars are machined out of 954 Billet Bronze Alloy for the ultimate in strength and corrosion resistance. It is the combination of this hardware which makes our kit so successful at solving the problem. Finally, a solution that works, is easy to install, and won’t break the bank!
« Last Edit: March 19, 2013, 09:01:24 am by JPK »
A3 8P Sportback 2.0T DSG
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Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #19 on: March 18, 2013, 11:18:34 pm »
BRAKES

I am reasonably happy with the stopping power of the OEM brakes, so I don't feel I have any real need for a BBK. It would be a nice-to-have but I likely wouldn't get much benefit from it on a daily basis for the $2500-3000 it would cost. I have considered an R32/S3/Golf R setup but once again the cost vs benefit for a street car and the 30% or so increase in unsprung weight over the stock setup doesnt make it particularly attractive.

However I dont like having to press the pedal a fair amount before it bites if I need to stop quickly and the pedal feel isnt fantastic. Brake dust with the OEM pads is also a bit of a pain.

What I am looking for with this setup is looks, lower brake dust, lower noise and a 10-20% increase in stopping power would be nice (if perhaps a bit optimistic).
Lower brake fade would also be good for a bit of extra peace of mind, although I havnt even got close to brake fade on the stock setup.

I decided to use OEM fluid on this occasion as from what I can gather aftermarket fluids are not the best for ABS/ESP units and im not really wanting to risk damaging a $2000 unit for the sake of a slightly higher boiling point. If the OEM fluid is good enough for R8s and RS models, im sure its fine for my A3. 
Im sure I will get a good benefit and increase in performance just by doing a fluid change and flush (including ABS/ESP system flush).

Stoptech Cyro-Sportstop Drilled Rotors

These are mainly for looks if I'm honest. They are cryogenically treated which adds extra strength and means they are unlikely to crack. They also have a black rust proof coating on the hats and outside edge (im not a fan of rusty looking OEM rotors). Im not sure how a rotor improves this but the manufacturer states that these rotors increase wet and dry braking performance and add bite.

Hawk Performance Ceramic Pads

Not really much I can say before trying them. The manufacturers description fits my requirements.

Quote
PC - PERFORMANCE CERAMIC BRAKE COMPOUND

Ultimate stopping power in an ultra-low dust, low noise ceramic compound!

Hawk Performance offers a premium, high performance, ultra-low dust, low noise compound called Performance Ceramic.

Performance Ceramic is engineered to reduce brake NVH (Noise, Vibration and Harshness), creating a quieter performing brake pad. Furthermore, the ceramic brake pad formula has a linear friction profile that allows your ABS brake system to work more effectively. With Performance Ceramic you can expect reduced brake pad wear, lower dust output levels and a rotor-friendly brake pad.

Tyrolsport Stainless Braided Lines

Hope to get improved, more progressive pedal feel with these. Will feel a bit better about having new lines as well.
I doubt there is anything in it between the different companies that produce these. Tyrolsport seems to be as good as any of the others.

Tyrolsport Brake Caliper Stiffening Kit

From the research ive done on this and reviews I have read, this product looks to be a very cost effective way of increasing braking performance.
It is a replacement for the OEM calliper bushings and related components. Tyrolsport states that the OEM rubber bushings create caliper flex,
leading to uneven pad wear, rotor deposits and reduced performance.

More info here: http://www.tyrolsport.com/product_inst/TyrolSport%20Brake%20Caliper%20Bushings%20Theory%20and%20Testing1.pdf
http://www.tyrolsport.com/brakes/tyrolsport-brake-caliper-stiffening-kit-for-vw/audi/
« Last Edit: June 14, 2015, 09:28:20 pm by JPK »
A3 8P Sportback 2.0T DSG
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Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #20 on: March 19, 2013, 06:21:40 pm »
These arrived today finally. The price is within a few dollars of Bilstein B8s, which I was looking at buying instead of the H&R cup kit dampers. However I decided to keep it all the same and the damping is matched to the springs I already have in the car.

I wouldnt be surprised if they are a rebranded Bilstein B8 as the H&Rs are also monotube and at an identical price point.




The silver ones are the incorrectly sized 50mm dampers. Not sure what I will do with these...
Without stating the obvious, the 55mm dampers (black) are definitely a much bigger damper.
A3 8P Sportback 2.0T DSG
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Offline Poonmobile

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Re: My A3 Sportback Progress Thread/Diary
« Reply #21 on: March 19, 2013, 10:00:18 pm »
Loving this thread! Keep it up, i think the car looks fantastic btw. Some nice and tasteful mods.
Current:
06 NZ B7 RS4 Avus Silver, 01 NZ B5 RS4 Avus Silver, 93 NZ VR6 <Manual> 3dr, 06 MK5 R32 Reflex Silver
Past:
MK2 VR6, MK5 GTI, MK5 R32, 8L S3 Imola, MK4 Golf V6 4motion, Polo GTI, 2x MK3 VR6, 98 D2 S8 Imola, 99 B5 S4 Avant Imola, 03 NZ R32 Deep Blue pearl

Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #22 on: March 21, 2013, 06:32:31 pm »
Bank account is taking a hammering this month...




This was a bit more than I wanted to spend on a grille as there is loads of cheaper options out there that also look quite good.
It completes the rest of the Oettinger kit nicely though, the build quality is great and fitment will be as good as OE being Oettinger.
The grille is in matt black (which most people just run with). Im thinking about having it painted gloss black to have that nice 'Black Edition'
look which will be a nice contrast with the body colour. Haven't decided yet.
It comes with all the hardware to mount the mesh and the Oettinger badge. Still waiting on the Audi rings.




This also arrived the other week. Very similar to the fibreglass OSIR lip but made out of PUR plastic and TÜV approved. Probably a bit more forgiving than fibreglass.

Should hopefully get both of these on next week.

A3 8P Sportback 2.0T DSG
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Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #23 on: March 24, 2013, 03:00:07 pm »
Have been driving for a couple of days now on the parts that were recently installed.

BRAKES - Would thoroughly recommend these upgrades to anyone who wants a decent upgrade in braking performance without breaking the bank.
The pedal feel and progression instills a LOT more confidence over the OE setup. Did a number of hard 60-0kmh and 100-0kmh stops to break the pads/rotors in and the car pulls up nice and quick without engaging ABS. I cant get over how much nicer the pedal progression is. Nice and solid and progressive right through the pedal travel. Very happy with it. Little dust now (Probably 10% of OE) and no squeaking/squealing at all when coming to a stop.

Note: The fluid that came out wasnt too bad, so im guessing the fluid was changed in the last 20,000kms or so. The OE pads had around 80% left on them. The new rotors wouldnt have made any difference to what I am feeling initially. The tyres I have are nice and grippy so this would also assist with hard stops.
Made a bit of a mistake when purchasing 286mm rear rotors. A3s and Golfs didnt change from 260mm to 286mm until 2008ish. Have put in a set of new OE rotors for now and will look at new carriers and dust shields to upgrade to the 286mm rotors at a later date. Calipers look to be the same between both.


SUSPENSION - Firstly, the NVH and ride quality is now at the outer limit of what I am personally happy with for a daily driver. I wouldn't recommend going as far as I have if you value your ride quality over cornering performance and drive on bad roads a lot. I dont have much of a problem with it but I mainly drive on decent roads and only do around 6000km a year in this car. The combination of 35 profile tyres/19" wheels and the suspension upgrades do make for a hard ride. If you stick with a lower diameter wheel and higher profile tyre the harshness would be reduced quite a lot I imagine, even with the same suspension setup. A few rattles and squeaks were initially introduced, but a bit of WD40 and tightening a few screws etc here and there have tidied that up.

Now on to the good stuff.

Issues that are now non existent: No more subframe clunk or shifting whatsoever. You can give the accelerator a sharp tap at low speeds and the whole car will go forward, rather than there being a split second while the rest of the car catches up with the subframe. No more clicking when turning sharply at low speed.
No more 'compression' squeak/noise from the rear when going over bumps (Fixed by Whiteline trailing arm bushes and possibly new rear end links). When hitting a bump you feel it initially but it is dampened instantly and the car continues on its way with no after effects or bumping (probably mostly related to the correct dampers in the front now). No bump steer now either.

Steering feels a lot more precise and you can feel more of the undulations of the road through the steering wheel. Better feedback.
The whole car feels stiffer and much tighter.

The car feels a lot more 'point and shoot'. No more floaty rear end at speed. It feels extremely capable when cornering and you would have to be going at stupid speeds when cornering for ESP to kick in or to lose control. Im not game enough to test it.

The rear end links also needed to be replaced as one of them was bent and the other had a seized bolt. Decided to replace with OEM instead of Whiteline as the application is slightly different in the rear and the links are a lot stubbier and therefore I imagine have much less load on them than the fronts. The one on the right is the bent one in the picture below. The rest of the photos arent the best but you get the idea. Will try and take some more when its on a hoist next.



Dont realise how many parts have been replaced till they are all sitting in a box to one side, most seem in ok condition and have no torn boots.











« Last Edit: March 25, 2013, 09:18:26 am by JPK »
A3 8P Sportback 2.0T DSG
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Offline Brett

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Re: My A3 Sportback Progress Thread/Diary
« Reply #24 on: April 02, 2013, 07:51:58 am »
This car is awesome! So clean!
Previous:MKIII Golf GL, MKIV Golf GTI, E36 325i, E36 323i, B5 S4 sedan, C32 AMG, B5 S4 avant.

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Offline creepdontsleep

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Re: My A3 Sportback Progress Thread/Diary
« Reply #25 on: April 14, 2013, 04:42:29 pm »
wow!
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Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #26 on: April 21, 2013, 04:32:20 pm »
Will take some better photos when I have detailed it. The fit of the front lip isnt perfect but that is to be expected from an aftermarket part I guess.

I may do something else with the front bumper at some point or have the lip moulded into the bumper. I think the grille turned out great.




« Last Edit: April 21, 2013, 05:49:25 pm by JPK »
A3 8P Sportback 2.0T DSG
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Offline Fizz

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Re: My A3 Sportback Progress Thread/Diary
« Reply #27 on: April 22, 2013, 07:52:20 am »
That looks great! :)
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Offline Arr32

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Re: My A3 Sportback Progress Thread/Diary
« Reply #28 on: April 22, 2013, 10:44:33 pm »
That is hot...Keep up the good work. BTW where did you pick up the carbon wrap?
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Offline JPK

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Re: My A3 Sportback Progress Thread/Diary
« Reply #29 on: April 23, 2013, 08:22:45 pm »
That is hot...Keep up the good work. BTW where did you pick up the carbon wrap?

Just off trademe. 3m di-noc carbon. I'm going to remove it and wrap the trim in a different film that I have got my hands on in the next couple of weeks.
A3 8P Sportback 2.0T DSG
- Progress Diary -