Author Topic: TDI M turbo question.  (Read 3967 times)

February 18, 2007, 04:52:21 pm

SMOKEYDUB

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TDI M turbo question.
« on: February 18, 2007, 04:52:21 pm »
Ok i am having thoughts about how to run a vnt. How the hell am i going to run it mechanically? I would love to do a vnt 20. Anyone have theres mechanically setup? For now I might just run a k24/k26 hybrid but i still want to do the vnt. So if someone could give me some ideas on how to do that, that would be cool. I think i saw somewere to use a regular wastegate actuator.

Thanks again and sorry for being a pain in the A$$

Jeff


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2000 NISSAN XTERRA (5 SPD)
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Reply #1February 18, 2007, 09:36:08 pm

Slave2School

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TDI M turbo question.
« Reply #1 on: February 18, 2007, 09:36:08 pm »
NamedTintin seems to have it figures out.
Waiting for a bigger better diesel to come along.
2002 ford focme wagon

Reply #2March 16, 2007, 02:38:55 am

OM617

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TDI M turbo question.
« Reply #2 on: March 16, 2007, 02:38:55 am »

Reply #3March 16, 2007, 08:15:40 am

jtanguay

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TDI M turbo question.
« Reply #3 on: March 16, 2007, 08:15:40 am »
IMO that is your best option... your foot controls how much the vanes open/close, but when the boost level you want is reached, the wastegate counteracts to reduce the boost.  very neat setup!

getting it tuned properly is a whole other story !  :lol:


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Reply #4March 16, 2007, 08:35:55 am

jimfoo

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TDI M turbo question.
« Reply #4 on: March 16, 2007, 08:35:55 am »
I had read the posts on how that was done, but I was imagining it as being so much more complex. The vid really helped see just how simple it is. Too bad I can't use it though. For off-road, I want max possible boost at low throttle. I'll have to think about. There must be a way that would be easily swithable.
Jim
1966 Land-Rover 88" with 1.9 1Z which has been transformed to an M-TDI
TFO35 mechanically controlled VNT, IC , and 2.5" exhaust.
Driven daily

Reply #5March 16, 2007, 03:11:48 pm

Tintin

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TDI M turbo question.
« Reply #5 on: March 16, 2007, 03:11:48 pm »
They are my videos  :lol:

Now, I modified my system,  with a second vacuum actuator activated by electric switch in my car,  to put the turbo in full boost mode if I need  :wink:

Reply #6March 16, 2007, 05:03:45 pm

Tintin

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TDI M turbo question.
« Reply #6 on: March 16, 2007, 05:03:45 pm »
I made small video to show how a VNT20 that spool quickly  :lol:

http://video.google.fr/videoplay?docid=1925907202892093863

Reply #7March 16, 2007, 05:55:14 pm

foxracer1

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TDI M turbo question.
« Reply #7 on: March 16, 2007, 05:55:14 pm »
Quote
OM617 http://www.youtube.com/Turbo617


Which gauge is which? You have an exhaust press. and an intake press. gauge right?

Quote
I made small video to show how a VNT20 that spool quickly  


How did you tune all that? guess and check?
84 4dr Rabbit 1.6 N/A sold to friend
86 Jetta TD getting raced out AHU 02A
98 Jetta TDI Malone tune stg 3
91 S10 305 TPI T56
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Now offering turbo rebuilds. HP or stock. Any turbo you have i can rebuild it for ya.
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Reply #8March 16, 2007, 09:53:48 pm

andy2

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TDI M turbo question.
« Reply #8 on: March 16, 2007, 09:53:48 pm »
Looks more like boost pressure and exhaust temp.And thats one of the bigger vnt's :shock:  with lots of fuel and boost from those vnt's it must be hard on the bottom end.I prefer to have the wastegated slug that protects my engine form too much power too to early in the rpm :lol:.

Reply #9March 16, 2007, 11:28:54 pm

DVST8R

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TDI M turbo question.
« Reply #9 on: March 16, 2007, 11:28:54 pm »
After watching that I have no doubt I could run a VNT-25, and it would probably spool as quick as a standerd T3, esspetially if i did a sweet hybrid using a gt25r ball bearing center section. :twisted:
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