[Sgop335]

Originally Posted by Fedorov

Is that "rear turbo line" the one closer to the windshield?
Is the front nipple also metal?
Just couldn't find where it connected.. Maybe I'll give it a shot again this weekend..

Yes rear one is closer to ws, easier to do. Both have metal barbs. Its easier to do the front by taking vacuum canisters out of the way. I found 4mm hose better for them.

[arhoads335i]

yeah the one going towards the windshield is the rear turbo line. This has a metal nipple, so follow it with you hand and try to memorize where it is. Then rip it off and put the new one down there, spit on the end of the line to help it go on.
The front nipple is also metal this one I'll be honest was difficult for me, I started to get nervous after I pulled it off it is very hard to get your hand in a position to push the new line on. So with my left arm if facing the engine slid my arm through where the line goes from the vacuum solenoid i held the new line right at the nipple and with my right arm i went through the font part of the engine and with a little flat head screw driver I pushed it on.
Just take deep breaths contort your body and arms in weird ways untill you have good leverage. Might be easier to take the vacuum canisters out for the front turbo line. If the rear turbo line is hard for you I would not suggest doing the front one yourself, get someone who kinda knows what they are doing and preferable small hands and skinny forearms.

[jwebb335xi]

Originally Posted by arhoads335i

yeah the one going towards the windshield is the rear turbo line. This has a metal nipple, so follow it with you hand and try to memorize where it is. Then rip it off and put the new one down there, spit on the end of the line to help it go on.
The front nipple is also metal this one I'll be honest was difficult for me, I started to get nervous after I pulled it off it is very hard to get your hand in a position to push the new line on. So with my left arm if facing the engine slid my arm through where the line goes from the vacuum solenoid i held the new line right at the nipple and with my right arm i went through the font part of the engine and with a little flat head screw driver I pushed it on.
Just take deep breaths contort your body and arms in weird ways untill you have good leverage. Might be easier to take the vacuum canisters out for the front turbo line. If the rear turbo line is hard for you I would not suggest doing the front one yourself, get someone who kinda knows what they are doing and preferable small hands and skinny forearms.

I removed the vacuum canisters to get at the front turbo line. That made it simple!

[Julian2485]

Just changed all my vacuum lines took me like 45 minutes to do and man is idle so much smoother. Just to let everyone know I used the 4mm platinum cured silicone hoses from verocious. I purchased 15'. I even replaced the hardlines running across the valve cover

[Fedorov]

Ok, I finally got the time to do this and those turbo lines where a real pita for sure but it felt great once it was all done.

However, even though the car feels normal to drive normally in traffic today when I got the chance to floor it i noticed that:

* The car didn't give me that "kick in the a**" like it did before where boost kicked in more like "all of a sudden" (I'm on a custom tune).

* I couldn't here the turbos spool when releasing the pedal like I did before. However, when standing still and revving it I thought I could hear them but not as "loud" as before..

Now, since I removed the air filter box to change some of the hoses maybe I didn't tighten it up enough..
I have a COBB accessport so I assume I should do a couple of pulls and do some logging really...

[Julian2485]

Originally Posted by Fedorov

Ok, I finally got the time to do this and those turbo lines where a real pita for sure but it felt great once it was all done.

However, even though the car feels normal to drive normally in traffic today when I got the chance to floor it i noticed that:

* The car didn't give me that "kick in the a**" like it did before where boost kicked in more like "all of a sudden" (I'm on a custom tune).

* I couldn't here the turbos spool when releasing the pedal like I did before. However, when standing still and revving it I thought I could hear them but not as "loud" as before..

Now, since I removed the air filter box to change some of the hoses maybe I didn't tighten it up enough..
I have a COBB accessport so I assume I should do a couple of pulls and do some logging really...

What hose did you change that made you have to remove air filter box ?

[Fedorov]

Originally Posted by Julian2485

What hose did you change that made you have to remove air filter box ?

The ones extending out from those hard plastic lines. I have an AFE filter air box and it's extending over those lines. Also there was one line sort of running underneath the air box. It's possibly called the manifold vacuum line. It's where the arrow is pointing to in this picture:
https://sayyarti.files.wordpress.com...old_nipple.jpg

Those lines where visible on some picture posted in this thread on some page where a guy installed blue vacuum lines, so yeah I changed those also..

[arhoads335i]

Thats the line going to the diverter valves or BOV, its possible you created a little crack one the plastic nipples. I saw earlier you were going to use 3mm line is that what you went with?

[Julian2485]

Originally Posted by Fedorov

The ones extending out from those hard plastic lines. I have an AFE filter air box and it's extending over those lines. Also there was one line sort of running underneath the air box. It's possibly called the manifold vacuum line. It's where the arrow is pointing to in this picture:
https://sayyarti.files.wordpress.com...old_nipple.jpg

Those lines where visible on some picture posted in this thread on some page where a guy installed blue vacuum lines, so yeah I changed those also..

I have stock box and was able to change those line with out taking the airbox off but you a ace intake so I could see why you had to

[Fedorov]

Originally Posted by arhoads335i

Thats the line going to the diverter valves or BOV, its possible you created a little crack one the plastic nipples. I saw earlier you were going to use 3mm line is that what you went with?

Fortunately I ordered the recommended vericious 3.5mm mentioned in this thread. I can't imagine how hard it would have been to push those hoses onto those nipples otherwise in those hard-to-reach places..

Its possible I made a crack but I considered myself beeing really careful.
And when removing a line up to 16 hrs after using the car I still hear the "swoosh" from the air entering where was the vacuum so maybe it's my imagination..

Also, I got the feeling that I got that sound of air being sucked in earlier because maybe my AFE air box wasn't sufficiently tightened so this could actually be a good thing when I come to think of it..
Just need to get the time to data log some..

[Julian2485]

Originally Posted by Fedorov

Fortunately I ordered the recommended vericious 3.5mm mentioned in this thread. I can't imagine how hard it would have been to push those hoses onto those nipples otherwise in those hard-to-reach places..

Its possible I made a crack but I considered myself beeing really careful.
And when removing a line up to 16 hrs after using the car I still hear the "swoosh" from the air entering where was the vacuum so maybe it's my imagination..

Also, I got the feeling that I got that sound of air being sucked in earlier because maybe my AFE air box wasn't sufficiently tightened so this could actually be a good thing when I come to think of it..
Just need to get the time to data log some..

I used 4mm lines and they all went on nice and smoothly

[studio54]

nice thread, helps a lot

I replaced all lines, cutted old ones and using them to cut the new ones and noticed that the rear wastegate hose was too long, meaning that there is some excess line length resulting in some zigzag behind the engine where the hose connect to the wastegate nipple.

Should i shorten a bit lines that are too long ? or keep it like that ??

What's the better ? shorter the better ?

Btw, with MHD I read -9.8 to -10 psi at idle, and -11.9 max after WOT at sea level.

[Matthewricha]

So I fitted my Vericious 3.5mm pipes this weekend past, all except the rear turbo vacuum pipe. Front turbo was a PITA, but did it in the end.

For you LHD cars I guess it's easy to access the rear wastegate actuator, but for us UK owners there's a steering column in the way. Anyone got any ideas how to access the rear turbo? is it best through the wheel arch or will I have to get underneath the car?

[GEOS07335i]

Two quick questions.
1) For those using the 3.5mm from http://www.verociousmotorsports.com/...ld-by-the-Foot. do they go on snug or are they loose? Did you have to use zipties to secure them on? Also for those that have been using the verocious vacuum lines how are they lasting?
2) Anyone know if FCPEuro sells the 3.5mm braded vacuum line by the foot or is it only by the meter. I want to get about 12ft (4m) all in one piece and cut my own.

Also are you guys replacing the hard lines with vacuum line?

I went ahead and got braided vacuum line from FCPEUro https://www.fcpeuro.com/products/bra...m-od-x-20mm-id asked them to cut this to 3m
and 2m of non braded line https://www.fcpeuro.com/products/bmw...rp-11747797175 hope i got enough of each.

[Julian2485]

Originally Posted by GEOS07335i

Two quick questions.
1) For those using the 3.5mm from http://www.verociousmotorsports.com/...ld-by-the-Foot. do they go on snug or are they loose? Did you have to use zipties to secure them on? Also for those that have been using the verocious vacuum lines how are they lasting?
2) Anyone know if FCPEuro sells the 3.5mm braded vacuum line by the foot or is it only by the meter. I want to get about 12ft (4m) all in one piece and cut my own.

Also are you guys replacing the hard lines with vacuum line?

I went ahead and got braided vacuum line from FCPEUro https://www.fcpeuro.com/products/bra...m-od-x-20mm-id asked them to cut this to 3m
and 2m of non braded line https://www.fcpeuro.com/products/bmw...rp-11747797175 hope i got enough of each.

I ordered mine from verocious it came as one long line and i cut myself. I got 15ft 4mm and replaced hard lines as well

[Wolf 335]

Originally Posted by GEOS07335i

Two quick questions.

1) For those using the 3.5mm from http://www.verociousmotorsports.com/...ld-by-the-Foot. do they go on snug or are they loose? Did you have to use zipties to secure them on? Also for those that have been using the verocious vacuum lines how are they lasting?
Basing it on comments from everyone that got them they fit perfectly as oem

2) Anyone know if FCPEuro sells the 3.5mm braded vacuum line by the foot or is it only by the meter. I want to get about 12ft (4m) all in one piece and cut my own.
The braided one is sold by the meter https://www.fcpeuro.com/products/bmw...se-11657803732 it is on the pricier end of the spectrum

Also are you guys replacing the hard lines with vacuum line?
Some guys replace the hard lines with vacuum ones and some keep the hard lines and only replace the hose parts on the ends.

I went ahead and got braided vacuum line from FCPEUro https://www.fcpeuro.com/products/bra...m-od-x-20mm-id asked them to cut this to 3m
and 2m of non braded line https://www.fcpeuro.com/products/bmw...rp-11747797175 hope i got enough of each.
Did you check the ID and OD for this hose? Your url path says this hose is 35mm OD x 20mm ID. Probably a typo and should be 3.5 and 2.0

See comments in orange.

I just made an order for 15ft from http://www.boostcontroller.com/Turbo...tls-vh-3.5.htm as heat resistance and shipping cost was a lot better than vericousmotorsports

Good luck

[mweisdorfer]

Originally Posted by GEOS07335i

Two quick questions.
1) For those using the 3.5mm from http://www.verociousmotorsports.com/...ld-by-the-Foot. do they go on snug or are they loose? Did you have to use zipties to secure them on? Also for those that have been using the verocious vacuum lines how are they lasting?
2) Anyone know if FCPEuro sells the 3.5mm braded vacuum line by the foot or is it only by the meter. I want to get about 12ft (4m) all in one piece and cut my own.

Also are you guys replacing the hard lines with vacuum line?

I went ahead and got braided vacuum line from FCPEUro https://www.fcpeuro.com/products/bra...m-od-x-20mm-id asked them to cut this to 3m
and 2m of non braded line https://www.fcpeuro.com/products/bmw...rp-11747797175 hope i got enough of each.

I used blue 3.5mm for both my soft & hard lines.

I bought 20'

http://www.verociousmotorsports.com/...ld-by-the-Foot.

The front turbo is the hardest part.

One guy had a good idea on the this forum
I wish I knew about when I did mine. Find a piece of copper house wire 14 gage maybe. Stick that into the actuator hole and then slide the vac line over it. Then pull the wire out. Presto. It's either that or spend 2 hours like I did trying to get the line on the nipple and bruising the crap out of your hands in the process.

[Julian2485]

Originally Posted by mweisdorfer

I used blue 3.5mm for both my soft & hard lines.

I bought 20'

http://www.verociousmotorsports.com/...ld-by-the-Foot.

The front turbo is the hardest part.

One guy had a good idea on the this forum
I wish I knew about when I did mine. Find a piece of copper house wire 14 gage maybe. Stick that into the actuator hole and then slide the vac line over it. Then pull the wire out. Presto. It's either that or spend 2 hours like I did trying to get the line on the nipple and bruising the crap out of your hands in the process.

Took me like 5 minutes literally i guess the 4mm just slides nice and easy over it

[Sgop335]

Correct

[Matthewricha]

Originally Posted by Matthewricha

So I fitted my Vericious 3.5mm pipes this weekend past, all except the rear turbo vacuum pipe. Front turbo was a PITA, but did it in the end.

For you LHD cars I guess it's easy to access the rear wastegate actuator, but for us UK owners there's a steering column in the way. Anyone got any ideas how to access the rear turbo? is it best through the wheel arch or will I have to get underneath the car?

Anyone in the UK have a solution?

[unrealii]

With an exacto knife, you can carve out a little bit of the hose at the tip, so that it slides on. I had to do that to get the line on my turbos. Durability not impacted as the nipple is contacts the hose further.

[mattlac]

Hey guys
Replaced my lines today with 3.5mm line from Verocious. Each line was done one at a time (removed, cut and replaced) with a few exceptions. Everything is correctly plumbed.

Before, the car had solid boost down low (2500 rpm+) and pulled much harder. After the new lines were installed the car felt like it had half the power. No boost at all down low and I could no longer hear the diverter valves release when I would free rev. It would pull well up top but until about 4000 rpm it had nothing.

Any thoughts? Maybe a line is kinked/pinched? I made sure to cut everything to OEM line lengths and tucked everything back in the retaining clips. I am going to take everything apart again next weekend but wanted to ask if there is anything else I should look for other than pinched/kinked lines.