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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.

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Old May 23rd, 2020, 06:08   #1
P777
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Exclamation BITurbo 1.9pd!

Hello everyone! I want to make bitdi on 1.9tdi! Small turbine gtb2056vl, big holset hx40! Who owns at least any information on the manufacture of such a configuration!
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Old May 23rd, 2020, 07:01   #2
cuban11182
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Hello everyone! I want to make bitdi on 1.9tdi! Small turbine gtb2056vl, big holset hx40! Who owns at least any information on the manufacture of such a configuration!

I think you're going to have to build that setup yourself. Head to Facebook as there are more folks running compound setups. Many of them from Finland.
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2002 Jetta GLS TDI (Betty White)
Manual swap with SBC 2 Endurance,230 Injectors, lift pump, Nictane filter, GT1752MFS, ARP studs, PD150 intake, Darkside FMIC, Profidiesel 2.5 turbo-back, Stage 2 Colt Cam, MAXSpeedingRods (made in China ), VW head w/ dual valve springs (not from MO). Soon to be GTB2060VKLR and .310 injectors.
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Old May 23rd, 2020, 08:44   #3
P777
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I think you're going to have to build that setup yourself. Head to Facebook as there are more folks running compound setups. Many of them from Finland.
I read there! People from Finland put big turbines, dumb city ride! I want a powerful car and comfortable in the city!
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Old May 23rd, 2020, 08:53   #4
Markus L
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My old setup was with GTB2056VL and GT4082SN. What kind of info do you need?
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Old May 23rd, 2020, 09:30   #5
cuban11182
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Look Markus L is from Finland, lol.
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2002 Jetta GLS TDI (Betty White)
Manual swap with SBC 2 Endurance,230 Injectors, lift pump, Nictane filter, GT1752MFS, ARP studs, PD150 intake, Darkside FMIC, Profidiesel 2.5 turbo-back, Stage 2 Colt Cam, MAXSpeedingRods (made in China ), VW head w/ dual valve springs (not from MO). Soon to be GTB2060VKLR and .310 injectors.
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Old May 23rd, 2020, 10:42   #6
adamss24
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I read there! People from Finland put big turbines, dumb city ride! I want a powerful car and comfortable in the city!
Then do as the rest of the herd- fit a single big turbo and be done with it...cant have it all...
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Old May 23rd, 2020, 11:49   #7
P777
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My old setup was with GTB2056VL and GT4082SN. What kind of info do you need?
I'm interested in how the exhaust manifold is implemented, do I need an external westgate ?! There may be some photos left?
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Old May 23rd, 2020, 16:21   #8
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Small HP turbo with good internal wastegate (hard to find those) and big LP turbo without wastegate is easiest setup to go with. And with external WG plumbing gets bit more complicated. And it gets even more complicated with VNT+WG, but all are totally doable for sure. Markus has quite nice build and can open it more if wants to

This thread might be good to check out http://forums.tdiclub.com/showthread.php?t=502244

Last edited by diffas; May 23rd, 2020 at 16:25.
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Old May 24th, 2020, 01:57   #9
Markus L
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I'm interested in how the exhaust manifold is implemented, do I need an external westgate ?! There may be some photos left?

My exhaust manifold was self made but I didn't take any decent pictures of it.


External wastegate is useful. I had like 1 bar drop in EMP with 3 bar boost when used it to bypass some of gas over HP turbine. 38mm is more than enough. When WG was fully open vanes needed to be quite shut to achieve 3.8 bar.



LP had an internal wastegate but eventually I didn't use it at all. You should search for largest housing possible for HX40. I think something like #20 exists.
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Old May 24th, 2020, 03:27   #10
P777
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My exhaust manifold was self made but I didn't take any decent pictures of it.


External wastegate is useful. I had like 1 bar drop in EMP with 3 bar boost when used it to bypass some of gas over HP turbine. 38mm is more than enough. When WG was fully open vanes needed to be quite shut to achieve 3.8 bar.



LP had an internal wastegate but eventually I didn't use it at all. You should search for largest housing possible for HX40. I think something like #20 exists.
I would like to chat with you in the messenger, how are you on facebook?
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Old May 24th, 2020, 05:19   #11
Markus L
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Sorry but I'm not looking for a chat friend. It's too time consuming for me to give technical advices to people in chats, PM's etc. If you have questions you can ask them in this thread so someone else might find an answer for their questions too.
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Old May 24th, 2020, 09:11   #12
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Sorry but I'm not looking for a chat friend. It's too time consuming for me to give technical advices to people in chats, PM's etc. If you have questions you can ask them in this thread so someone else might find an answer for their questions too.
tell me please how to connect the west gate? in front of a large turbine and exit to the exhaust system? or in front of a small turbine?
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Old May 24th, 2020, 09:24   #13
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If you use two wastegates for both turbos, first one comes in front of the HP turbine and flows into LP turbine. In LP turbo it comes before the LP turbine and flows to the exhaustpipe.

Some old picture from AAZ project

Last edited by diffas; May 24th, 2020 at 09:29.
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Old May 24th, 2020, 11:11   #14
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If you use two wastegates for both turbos, first one comes in front of the HP turbine and flows into LP turbine. In LP turbo it comes before the LP turbine and flows to the exhaustpipe.

Some old picture from AAZ project
tell me why the Westgate is going back to the exhaust manifold, not the streets! We need to lower the pressure!
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Old May 24th, 2020, 12:33   #15
Markus L
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Like this



You can ignore compressor bypass and EGR.

Last edited by Markus L; May 24th, 2020 at 12:36.
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