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Flyboy style
Posted by: .jonah (4573) on 2015-05-18 17:33:55 In Reply to: Going to rebuild my wastegate lines while motor is out. 3.5mm or 4mm silicone hose?? posted by S4gasm (LotR) on 2015-05-15 12:02:32	Share \| Report

https://forums.quattroworld.com/s4/threads/17931.phtml

Thread:

Going to rebuild my wastegate lines while motor is out. 3.5mm or 4mm silicone hose?? - S4gasm (LotR) 2015-05-15 12:02:32 (1040 views)
- For the record: 4mm is a perfect fit. Here is what I'm working with... - S4gasm (LotR) 2015-05-22 13:11:33 (478 views)
- Flyboy style - .jonah 2015-05-18 17:33:55 (387 views)
  - i saw those, too many moving parts/joints for me. - S4gasm (LotR) 2015-05-19 11:40:30 (280 views)
- -3AN stainless steel hose braided would be my choice for reliability. - julex 2015-05-18 09:36:59 (331 views)
  - What do you use to connect the AN fitting to the turbo? - jprice 2015-05-18 11:24:17 (301 views)
    - you mean wastegate nipple? Oetiker clamp. - julex 2015-05-18 13:21:37 (312 views)
      - I guess both the boost reference line and wastegate nipple...  -  jprice  2015-05-18 13:50:22 (345 views)
        
        i would use this :   -  lemieux@curbside  2015-05-19 02:52:32 (394 views)
        
        I think he's saying put the hose end directly on the nipple fitting. No -AN connectors.   -  S4iowa  2015-05-18 14:01:34 (346 views)
        
        Gotcha.. yeah if it's rubber or similar inside.   -  jprice  2015-05-18 15:18:18 (250 views)
        
        It's synthetic rubber. For signal line you'd need some metric fittings in there, I don't know the  -  julex  2015-05-18 15:37:01 (290 views)
        
        Cool. thanks. Which SS line have you had good luck with?   -  jprice  2015-05-18 15:43:34 (249 views)
        
        it is all the same stuff, just buy generic SS braided one, they're all the same size since  -  julex  2015-05-18 15:45:33 (276 views)
  - i was going to wrap these in some heat shield, if i'm not happy with it i'll consider that option. - S4gasm (LotR) 2015-05-18 11:14:07 (267 views)
    - I would wrap the SS lines in some heat shield too. - jprice 2015-05-18 11:22:42 (310 views)
      - good idea - julex 2015-05-18 13:22:23 (271 views)
- Think I use 5mm. 3mm is the small fuel psi/boost gauge size. - zillarob 2015-05-15 12:27:13 (341 views)
  - nobody mentioned 5mm except you :-P - S4gasm (LotR) 2015-05-15 12:34:50 (300 views)
    - Pretty sure I use 5mm, but the tees by the n75 do look to be 5.5x3x3mm - zillarob 2015-05-15 23:38:44 (330 views)
      - Yes, the lines to the wastegates are smaller than at the n75. They reduce at the Ts. - jprice 2015-05-16 11:00:28 (321 views)
        
        Thats a given - zillarob 2015-05-16 12:37:51 (327 views)
- Either will work. More importantly, make sure it's VERY thick walled. - jprice 2015-05-15 12:11:56 (542 views)
  - yeah i'm noticing some of them are thin, any idea what wall thickness required? - S4gasm (LotR) 2015-05-15 12:26:58 (322 views)
    - The thicker the better. Also make sure it's not close to anything with sharp edges, AND - jprice 2015-05-15 12:31:32 (386 views)
      - Yes. ;). I only used straight silicone for BPV and FPR. Best to use Otiker stepless clams like OE   -  S4iowa  2015-05-15 13:20:55 (464 views)
        
        yeah i've got a whole box of these guys.   -  S4gasm (LotR)  2015-05-15 13:59:22 (335 views)
        
        If you need of a size you don't have, I found that the local beer brewing supply store has them   -  S4iowa  2015-05-15 15:28:46 (317 views)
        
        luckily they know me pretty well.   -  S4gasm (LotR)  2015-05-15 15:46:00 (320 views)

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