www.tdiclub.com

Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You

Order your TDIClub merchandise and help support TDIClub


Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

Reply
 
Thread Tools
Old August 12th, 2019, 14:58   #1
AWD-TDI
Newbie
 
Join Date: Aug 2019
Location: Barrie Ontario
Default Downpipe advice needed - VNT20 ALH TDI

I've got a VNT 2052 on my ALH TDI and the DP is rusty. I can see this becoming a problem sooner than later. Does anyone know if there is a source for a better one? Is this a custom fab? This car is new to me so I'm not too sure and need some help. It's pretty hard to see and get to so any advice on physical replacement procedure is also welcome.

Thanks!

http://uploads.tapatalk-cdn.com/201...c41cda2ba0.jpg

http://uploads.tapatalk-cdn.com/201...2f527ef05b.jpg

http://uploads.tapatalk-cdn.com/201...bae82c32b0.jpg

http://uploads.tapatalk-cdn.com/201...a9ee45448c.jpg

http://uploads.tapatalk-cdn.com/201...210fb410be.jpg
AWD-TDI is offline   Reply With Quote
Old August 12th, 2019, 16:29   #2
red16vdub
Veteran Member
 
red16vdub's Avatar
 
Join Date: Aug 2013
Location: (617) City of CHAMPIONS
TDI(s): 03 JSW 5spd
Default

I donít see a problem here , drive more worry less.


Sent from my iPhone using Tapatalk
__________________
Mk1 Gti /scIROCco 16v Eaton Supercharger /A4 Avant sport / Mk4 TDI JSW 5spd
17/56 turbo, RC ASV 5+ @ 28psi, 3 Bar Map, 11mm IP, PD Lift Pump, R520's, Rosten Rods, Arp Studs, Race Valve springs, McNally boost/egt, Euro FIS full Cluster, PD 150 Intake/racepipe, PD 150 plastic T.I.P + R32 maf air mods, Kerma 2.5" Fmic, Kerma 3" turbo back, SBC stage 3 Endurance, GLi brakes F/R , GLi axles, H&R Bilstein sports cup kit.
red16vdub is online now   Reply With Quote
Old August 12th, 2019, 16:41   #3
Mongler98
Veteran Member
 
Join Date: Mar 2011
Location: Northern MD
Fuel Economy: Race: 12mpg, Gandma:65mpg
Default

wait till it gets a hole in it. have one made in stainless
do not wrap it up with that heat wrap stuff, it will make it worse.
Mongler98 is offline   Reply With Quote
Old August 12th, 2019, 20:53   #4
Nero Morg
Veteran Member
 
Nero Morg's Avatar
 
Join Date: Oct 2017
Location: Oregon
Default

Just have to say, I haven't seen a VNT20 before, only heard of them. That things a MONSTER.
__________________
Whatever. Just use your darned blinker. And stay off your phone.
Nero Morg is offline   Reply With Quote
Old August 13th, 2019, 05:14   #5
Fix_Until_Broke
Veteran Member
 
Fix_Until_Broke's Avatar
 
Join Date: Aug 2004
Location: Menomonee Falls, Wisconsin, USA
Fuel Economy: 75.0/53.0/38.4
Default

That's a one off piece - especially with AWD, you won't find an "off the shelf" solution unless you're really lucky and some 1.8T or Quattro TT part might fit?

The procedure is pretty simple - unbolt the old and bolt in the new - nothing too complicated.

If what you have works well, you might be able to remove it, take it to a fab shop and have them make up a new one using this as a template. I'll warn you though, this is not as easy as it sounds. As you mention, there is not a lot of room and most things like this are custom made to the exact vehicle as variances from one to the next are enough to make an off the shelf version cause a lot of problems. Particularly as you have a unique AWD jetta.

Good luck!
__________________
03 Jetta, Cat 2u, DG Steel SP w/MOGolf Mod, 3"DP, 4"EXH, EaBP100 Bypass, Euroswitch, ECodes, Driving Light, PD Lift Pump, R520's, RC5,RC6, TDTuning, Malone, ScanGaugeII, 3" TIP, 2" TOP, HE221W Compounded with GTC1444VZ, 6 Bar MAP, VR6 MAF, Vented Fender Liner, Battery Cover Mod, 11mm, Monster Mats, 215/55/17 (27.9/53.0/75) Monthly MPG Links, Euro Trunk Latch, IDParts RSB, SDI or ALH Intake, ARL Ceramic Pistons, Rosten Rods, DRW, Wavetrac, SBC, FSD's, Beef Springs, Rebuilt Head, Recaro's, Colt II, DG Sigma 6, RMT200
Fix_Until_Broke is online now   Reply With Quote
Old August 13th, 2019, 05:16   #6
Fix_Until_Broke
Veteran Member
 
Fix_Until_Broke's Avatar
 
Join Date: Aug 2004
Location: Menomonee Falls, Wisconsin, USA
Fuel Economy: 75.0/53.0/38.4
Default

Quote:
Originally Posted by Nero Morg View Post
Just have to say, I haven't seen a VNT20 before, only heard of them. That things a MONSTER.
They're big, but slow and late to spool and don't make any more power than the more modern GTB's. It's a 20+ year old turbo design.
__________________
03 Jetta, Cat 2u, DG Steel SP w/MOGolf Mod, 3"DP, 4"EXH, EaBP100 Bypass, Euroswitch, ECodes, Driving Light, PD Lift Pump, R520's, RC5,RC6, TDTuning, Malone, ScanGaugeII, 3" TIP, 2" TOP, HE221W Compounded with GTC1444VZ, 6 Bar MAP, VR6 MAF, Vented Fender Liner, Battery Cover Mod, 11mm, Monster Mats, 215/55/17 (27.9/53.0/75) Monthly MPG Links, Euro Trunk Latch, IDParts RSB, SDI or ALH Intake, ARL Ceramic Pistons, Rosten Rods, DRW, Wavetrac, SBC, FSD's, Beef Springs, Rebuilt Head, Recaro's, Colt II, DG Sigma 6, RMT200
Fix_Until_Broke is online now   Reply With Quote
Old August 13th, 2019, 07:46   #7
AWD-TDI
Newbie
 
Join Date: Aug 2019
Location: Barrie Ontario
Default

Quote:
Originally Posted by red16vdub View Post
I donít see a problem here , drive more worry less.


Sent from my iPhone using Tapatalk
I'm all about that however I get some exhaust smell and even a bit of smoke in engine bay now. Not sure exactly where its coming from. Also since I'm doing a clutch soon I'm hoping to take care of a bunch of problems and secure the next 100k plus of reliability.

Sent from my SM-G973W using Tapatalk
AWD-TDI is offline   Reply With Quote
Old August 13th, 2019, 07:50   #8
AWD-TDI
Newbie
 
Join Date: Aug 2019
Location: Barrie Ontario
Default

Thanks for all the great comments guys!

I think I'll pop it off when I do my clutch and have it remade in stainless as suggested. I dont want to be put in a rush situation as a result of a DP failure.

Sent from my SM-G973W using Tapatalk
AWD-TDI is offline   Reply With Quote
Old August 14th, 2019, 05:23   #9
adamss24
Veteran Member
 
Join Date: Nov 2005
Location: Great Britain
Fuel Economy: 35-45mpg
Default

As suggested above, take the exhaust downpipe off and have a fab shop duplicate what you have on a jig in stainless steel 304 or 316... Get a decent quality flex pipe and you can use a quality vee band clamp as well if you have room...
adamss24 is offline   Reply With Quote
Old August 14th, 2019, 11:07   #10
turbobrick240
Veteran Member
 
turbobrick240's Avatar
 
Join Date: Nov 2014
Location: maine
Default

Even a good quality 409 SS pipe would probably outlast the rest of the car at this point.
turbobrick240 is offline   Reply With Quote
Old August 14th, 2019, 15:05   #11
Mongler98
Veteran Member
 
Join Date: Mar 2011
Location: Northern MD
Fuel Economy: Race: 12mpg, Gandma:65mpg
Default

even cheep alumilized steel pipe with some VHT paint on it would outlast the car lol
Mongler98 is offline   Reply With Quote
Old August 14th, 2019, 16:16   #12
AWD-TDI
Newbie
 
Join Date: Aug 2019
Location: Barrie Ontario
Default

Quote:
Originally Posted by adamss24 View Post
As suggested above, take the exhaust downpipe off and have a fab shop duplicate what you have on a jig in stainless steel 304 or 316... Get a decent quality flex pipe and you can use a quality vee band clamp as well if you have room...
I like the 316 for sure. With all the chassis work done on this car I plan to keep it for long time. It's in basically rust free condition. Thanks for advice.

Sent from my SM-G973W using Tapatalk
AWD-TDI is offline   Reply With Quote
Old August 14th, 2019, 16:19   #13
AWD-TDI
Newbie
 
Join Date: Aug 2019
Location: Barrie Ontario
Default

Ok.. so this may be tough to answer but does anyone know what other turbo options this new and hypothetical down pipe would suit? Since I'm in it for the long haul, I'd consider a more modern and higher performance turbo when the time comes. I dont mind spending money on a good DP especially if it's a bit versatile.

Sent from my SM-G973W using Tapatalk
AWD-TDI is offline   Reply With Quote
Old August 14th, 2019, 19:00   #14
Fix_Until_Broke
Veteran Member
 
Fix_Until_Broke's Avatar
 
Join Date: Aug 2004
Location: Menomonee Falls, Wisconsin, USA
Fuel Economy: 75.0/53.0/38.4
Default

Basically none - it has more to do with the header construction (which locates the turbo relative to everything else) than the turbo itself.

If you're considering a turbo upgrade, look at darkside - they have GTB/C/D kits for MKIV's with AWD which will be both more responsive (driveable) and more power than what you have now and all the parts should bolt on.
__________________
03 Jetta, Cat 2u, DG Steel SP w/MOGolf Mod, 3"DP, 4"EXH, EaBP100 Bypass, Euroswitch, ECodes, Driving Light, PD Lift Pump, R520's, RC5,RC6, TDTuning, Malone, ScanGaugeII, 3" TIP, 2" TOP, HE221W Compounded with GTC1444VZ, 6 Bar MAP, VR6 MAF, Vented Fender Liner, Battery Cover Mod, 11mm, Monster Mats, 215/55/17 (27.9/53.0/75) Monthly MPG Links, Euro Trunk Latch, IDParts RSB, SDI or ALH Intake, ARL Ceramic Pistons, Rosten Rods, DRW, Wavetrac, SBC, FSD's, Beef Springs, Rebuilt Head, Recaro's, Colt II, DG Sigma 6, RMT200
Fix_Until_Broke is online now   Reply With Quote
Old August 15th, 2019, 14:48   #15
AWD-TDI
Newbie
 
Join Date: Aug 2019
Location: Barrie Ontario
Default

Quote:
Originally Posted by Fix_Until_Broke View Post
Basically none - it has more to do with the header construction (which locates the turbo relative to everything else) than the turbo itself.

If you're considering a turbo upgrade, look at darkside - they have GTB/C/D kits for MKIV's with AWD which will be both more responsive (driveable) and more power than what you have now and all the parts should bolt on.
Would I not be using my same header ? I'll look into darkside.

Sent from my SM-G973W using Tapatalk
AWD-TDI is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
MK4 ALH 17/26 build knowledgable advice needed Nyg1012 Private TDI Items for Sale/Wanted 8 April 14th, 2016 05:13
Advice needed for ALH build Kingcodez TDI Power Enhancements 10 June 3rd, 2015 22:12
Piston Ring advice needed on ALH... rjsummer VW MKIV-A4 TDIs (VE and PD) 1 March 16th, 2012 20:34
99.5 TDi downpipe needed Strider199 Ontario 4 May 8th, 2010 05:58
FS: vnt20, tube manifold, downpipe, fits mk2/3 Rub87 Private TDI Items for Sale/Wanted 4 August 17th, 2009 05:37


All times are GMT -7. The time now is 06:34.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
© 1996 - 2017, All Rights Reserved
Page generated in 0.17390 seconds with 11 queries
[Output: 132.29 Kb. compressed to 111.57 Kb. by saving 20.72 Kb. (15.66%)]