I believe Aaron (G-60) told me Issam figured it out, maybe made a few setsaudifreakjim wrote:Amen to that. I run 034 rear tie rods. I think AK offers them now? The only special part is the tapered bolt for the knuckle side. If you can machine your own, they are easy to make
B3 90Q 07k
Re: The 90Q (07k?)
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90quattrocoupe
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- Joined: Fri Mar 01, 2013 12:21 pm
- Location: Long Beach, CA.
Re: The 90Q (07k?)
Yes, 17s. I like the ride on 17s.Afterthought wrote:I was thinking of your car too. Are yours 17” ? I’m hoping these wheels will look ok on the b3. I’ve test fit and they clear front and rear . 17x8 ET32
Yours look great .
As far as the tie rod the boot was torn and thinking I would replace with new I damaged the treads a little , my stupid mistake as I didn’t know they were unobtanium . I bet the threads can be fixed .
Nut on tie rods are different thread, real fine, compared to other nuts used on VAG products.
Greg W.
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Afterthought
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- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
I haven’t worked on this at all sadly due to other things in life that have taken priority . But I haven’t forgotten about it .
I acquired some Por 15 brand caliper repainting kit , I know it’s not recommended to repaint calipers but I’m going to have to give it a try as mine are mismatched .
I’ll have to figure out soon what suspension to get . I was thinking of going the KW route .
I also started acquiring all the parts needed to swap to black interior since I never have liked platinum . I have almost a full interior , have a line on a black dash , just some trim parts here and there that are missing .

I acquired some Por 15 brand caliper repainting kit , I know it’s not recommended to repaint calipers but I’m going to have to give it a try as mine are mismatched .
I’ll have to figure out soon what suspension to get . I was thinking of going the KW route .
I also started acquiring all the parts needed to swap to black interior since I never have liked platinum . I have almost a full interior , have a line on a black dash , just some trim parts here and there that are missing .

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Afterthought
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The 90Q (07k?)
I’ve spent a good bit of time on the exhaust header . I didn’t really like the first one I made and I’ve wanted to revise the design and make it radial flow as Jim and others have said that’s the best .
I’ve had a few attempts at it now and I still can’t get it perfect . I can’t get radial flow no problem but equal length seems to be out of the question . So I tried to use as many 45 deg bends as possible and where I need a 90 I used long radius bends where able. The exception is the runner for #3 which is shorter but has some tight radius bend.
Tonight I screwed around and this is the best I can come up with yet.
I could try it again but If I do I would change the collector and experiment with that .







I’ve had a few attempts at it now and I still can’t get it perfect . I can’t get radial flow no problem but equal length seems to be out of the question . So I tried to use as many 45 deg bends as possible and where I need a 90 I used long radius bends where able. The exception is the runner for #3 which is shorter but has some tight radius bend.
Tonight I screwed around and this is the best I can come up with yet.
I could try it again but If I do I would change the collector and experiment with that .







Re: The 90Q (07k?)
Seriously awesome stuff in here.
-Shawn C.
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
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Afterthought
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- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
The 90Q (07k?)
I ordered some aluminum so I can drill the pattern into some heat sink/purge blocks and weld the manifolds together , then hopefully I can stop getting distracted and work on some other parts of the car . I just enjoy practicing welding and it makes me procrastinate on the things I don’t enjoy as much .
It would be nice if I could put the proper flanges on the 01E (I have them just need to put them in) , swap the driveshaft, figure out the front axle situation and finish the brakes . Once I have the axles in then I could do the rest of the exhaust , for now it’s only a down pipe
It would be nice if I could put the proper flanges on the 01E (I have them just need to put them in) , swap the driveshaft, figure out the front axle situation and finish the brakes . Once I have the axles in then I could do the rest of the exhaust , for now it’s only a down pipe
Re: The 90Q (07k?)
Nice work on that header. Gonna be a work of art when you get it finished.
Brent
'91 Coupe Quattro
'91 Coupe Quattro
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
I’ve got the b5 A4 rear diff parts in my
Possession . I’d heard from Jimolde that maybe I need to shorten these a few mm. So I removed what was in the 01E to check difference .
01E

01E vs the new used ones .



There are a few differences in dimension. But they do fit right in as is .
So now I guess the next step is to take a look at the axles I have laying around and see what I can use . I think I have all 4 from a b3 or all 4 from a 4000 at my disposal .
Possession . I’d heard from Jimolde that maybe I need to shorten these a few mm. So I removed what was in the 01E to check difference .
01E

01E vs the new used ones .



There are a few differences in dimension. But they do fit right in as is .
So now I guess the next step is to take a look at the axles I have laying around and see what I can use . I think I have all 4 from a b3 or all 4 from a 4000 at my disposal .
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highlander69
- Posts: 279
- Joined: Thu Feb 28, 2013 7:43 am
Re: The 90Q (07k?)
Looking great
Where did you get the header flange?
Cheers
Where did you get the header flange?
Cheers
Re: The 90Q (07k?)
I have heard both ways with the output shafts. I shortened the ones I have to match the 01E shafts so I k ew there would be no problem. Fair warning though, they are hardened, and take small cuts. I almost threw one out of a lathe. Don't forget to shorten the bolts too.
"If you can't find one, make one"
Dallastown, PA
1991 Audi 80 quattro (20vt project)
1991 Audi Coupe Quattro (project: my first 20v)
2007 Mitsubishi Raider(Dakota in disguise)
2019 Chevy Cruze RS hatch (wife's little red sporty car)
Dallastown, PA
1991 Audi 80 quattro (20vt project)
1991 Audi Coupe Quattro (project: my first 20v)
2007 Mitsubishi Raider(Dakota in disguise)
2019 Chevy Cruze RS hatch (wife's little red sporty car)
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
I can see exactly what you’re saying ... so when comparing how they seat in the trans, the difference is about 3-4mm .DE80q wrote:I have heard both ways with the output shafts. I shortened the ones I have to match the 01E shafts so I k ew there would be no problem. Fair warning though, they are hardened, and take small cuts. I almost threw one out of a lathe. Don't forget to shorten the bolts too.
To me it looks like it will still seal no matter what , But if I get it fully seated that will help my axle fitment .
So here’s the difference .
Original 01E piece

B5 rear diff cup

Now I looked and the 4000 axles are useless as the spline is too small on the outer CV .
The b3 axles , drivers side fits perfect with no changes to anything .

Passenger side the axle is a little long .


With everything fully seated . I still have a few MM to go . My ball joint is adjusted all the way in, so I didn’t touch that yet- I think that I could easily make up the difference there , however . I think I will have a go at shortening the piece first and get things as close as possible before adjusting the ball joint and try and get it centered. So that’s good news , I can use my stock axles I guess.
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
The header flange is from a place here in WA that just started making a couple of billet parts for the 07k. The flange is first but I hear they are working on more. They also make the collector cutting fixture, which works realllly good.highlander69 wrote:Looking great![]()
Where did you get the header flange?
Cheers
The flange is really nice and much nicer than the other one I had used. Added bonus is the ID of the 1.25" tubing is a perfect match to the flange, so once its welded up I will have to barely any porting are polishing at all to have a perfect transition from flange to pipe. Its not the cheapest but its the nicest flange you could get .
https://www.lpsfab.com/product/vw-2-5l- ... 1-1-4-pipe
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
The 90Q (07k?)
Ok so I got those shortened . I took off 0.125” and then shortened the bolts the same amount . Used a lathe with a steady rest and as mentioned above they are super hardened - well the inside is soft metal but the outside is hard. took off about 0.02 at a time, and low rpm (50) . After shortening I used a set of diamond files to clean the ends up and it works great.



Also made another EFR Indy specific flange to match this .




So what’s next is , get the cork CV gaskets in the mail, install axles . Finish manifold , downpipe, and remaining exhaust . I priced out 3.5” and had all the parts in the cart but at the end of the day I decided to use metal I already have and go 3”.

Sent from my iPhone using Tapatalk



Also made another EFR Indy specific flange to match this .




So what’s next is , get the cork CV gaskets in the mail, install axles . Finish manifold , downpipe, and remaining exhaust . I priced out 3.5” and had all the parts in the cart but at the end of the day I decided to use metal I already have and go 3”.

Sent from my iPhone using Tapatalk
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highlander69
- Posts: 279
- Joined: Thu Feb 28, 2013 7:43 am
Re: The 90Q (07k?)
awesome thanks.
Keep up the great work. I'm looking forward to seeing this done.
Great motivation for me to get back at it

Keep up the great work. I'm looking forward to seeing this done.
Great motivation for me to get back at it
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highlander69
- Posts: 279
- Joined: Thu Feb 28, 2013 7:43 am
Re: The 90Q (07k?)
I'm going to build my next manifold using this collector.
Looks good in my opinion.
https://www.race3.ca/fabrication-components
Looks good in my opinion.
https://www.race3.ca/fabrication-components
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
The 90Q (07k?)
It looks good and probably great quality , but I didn’t use it for mine due to the size. It looks to be 1.75” so it’s made so that you would sleeve 1.5” pipe into it , like so .

I wanted to do 1.25 as it’s supposed to have the best characteristics for this size engine /turbo, as in spool faster but not limiting to power .
I also I wanted to try different merge angles and see what was the best middle ground between low angle and still being able to weld it .
Now with that said if you want to make 1.5” header you should be able to sleeve it in just fine and it might be even easier to weld .
I did make one of those larger dia. Headers just to do it, and it fits in the engine bay just fine and looks beefy as hell. Quite a bit bigger but not a problem with this much space .


Also if you want A smaller collector let me know and I could cut you one since I now have the cutting jig.

I wanted to do 1.25 as it’s supposed to have the best characteristics for this size engine /turbo, as in spool faster but not limiting to power .
I also I wanted to try different merge angles and see what was the best middle ground between low angle and still being able to weld it .
Now with that said if you want to make 1.5” header you should be able to sleeve it in just fine and it might be even easier to weld .
I did make one of those larger dia. Headers just to do it, and it fits in the engine bay just fine and looks beefy as hell. Quite a bit bigger but not a problem with this much space .


Also if you want A smaller collector let me know and I could cut you one since I now have the cutting jig.
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Afterthought
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- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
For any folks who have done the later 01E swap... I’ve got a question about the slave cylinder, didn’t get any lines with the transmission . I have a plastic slave cylinder , haven’t seen one like this yet .
I’m assuming I need the factory part , can’t just adapt to some standard flared fitting ?
Slave cylinder looks like this .

I’m assuming I need the factory part , can’t just adapt to some standard flared fitting ?
Slave cylinder looks like this .

Re: The 90Q (07k?)
USP makes a phenomenal master -> slave cylinder and its reasonably priced as well. More so than it would be to source an older, OEM, almost bursting hose.
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
Hmm ok . Thanks . That sounds like a perfect solution
Re: The 90Q (07k?)
what year is that 01e you have? I did a TDI 01e out of an allroad in my 90 and I think i just used the stock 90 slave cylinder.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
Re: The 90Q (07k?)
It’s from a 2003 A4 3.0 V6dana wrote:what year is that 01e you have? I did a TDI 01e out of an allroad in my 90 and I think i just used the stock 90 slave cylinder.
That’s a good idea. When I get a chance today or tomorrow I will measure the OD of the slave and compare .
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
The 90Q (07k?)
Ok bad news and bad news .
Bad news #1 : I haven’t had any time to work on anything .
Bad news #2: The stupid cork CV axle gaskets don’t fit . They are about 88 or 90mm m too small .


So, after looking into it again using 7Zap I'm not finding any gasket but I'm seeing a tube of sealant that looks like it runs about 100$ from Audi. So Im guessing ill either be cutting cork gaskets out with an exacto knife or using some sealant.

Bad news #3 : The brake calipers don’t fit over the rotors. This is the largest MC4 mechanical parking brake caliper I can find. So I want to make it work .
Rotor dia measures 22mm.
Distance between the pads is about 20.6mm
The pads are super thin, 6.9 mm each.


So I guess I have 3 options at least,
1- Sand the pads down somehow 1mm each
2-turn 2mm off the rotors
3- fixture this in the mill and mill this circled area where the back of the pad goes.
I may have an idea , when I get a day off I’ll look at it

Bad news #1 : I haven’t had any time to work on anything .
Bad news #2: The stupid cork CV axle gaskets don’t fit . They are about 88 or 90mm m too small .


So, after looking into it again using 7Zap I'm not finding any gasket but I'm seeing a tube of sealant that looks like it runs about 100$ from Audi. So Im guessing ill either be cutting cork gaskets out with an exacto knife or using some sealant.

Bad news #3 : The brake calipers don’t fit over the rotors. This is the largest MC4 mechanical parking brake caliper I can find. So I want to make it work .
Rotor dia measures 22mm.
Distance between the pads is about 20.6mm
The pads are super thin, 6.9 mm each.


So I guess I have 3 options at least,
1- Sand the pads down somehow 1mm each
2-turn 2mm off the rotors
3- fixture this in the mill and mill this circled area where the back of the pad goes.
I may have an idea , when I get a day off I’ll look at it

Last edited by Afterthought on Sun Mar 08, 2020 4:39 pm, edited 1 time in total.
Re: The 90Q (07k?)
Like Dana I used the stock metal slave on my b3 audi with an fyf 01e conversion also from the v6 a4.Afterthought wrote:It’s from a 2003 A4 3.0 V6dana wrote:what year is that 01e you have? I did a TDI 01e out of an allroad in my 90 and I think i just used the stock 90 slave cylinder.
That’s a good idea. When I get a chance today or tomorrow I will measure the OD of the slave and compare .
1988 Audi 80 quattro, 2005 Ranger, 2006 BMW 330i, 1996 Yamaha Virago
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Afterthought
- Posts: 1249
- Joined: Thu Jan 16, 2014 5:43 pm
- Location: Bellingham, Wa
The 90Q (07k?)
Ok sounds good , thank you. This gives me plenty of options to find a good setup.
So maybe it’s time for me to figure this out , I keep going back and forth .
What is going to get me a better setup...
The KW suspension or the 2bennett special ?
The KW , I don’t know anything about the spring rates or quality .
the 2B is easy to make work too , I can put in whatever spring rates I want and have single or double adjustable koni dampers .
Regarding the spring rates I don’t know what I should be looking for , but I would probably go stiffer than what’s in my UrQuattro . I have 340 front 440 rear springs in that (might be backwards I don’t know)
So maybe it’s time for me to figure this out , I keep going back and forth .
What is going to get me a better setup...
The KW suspension or the 2bennett special ?
The KW , I don’t know anything about the spring rates or quality .
the 2B is easy to make work too , I can put in whatever spring rates I want and have single or double adjustable koni dampers .
Regarding the spring rates I don’t know what I should be looking for , but I would probably go stiffer than what’s in my UrQuattro . I have 340 front 440 rear springs in that (might be backwards I don’t know)