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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.

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Old December 12th, 2010, 20:14   #46
manual_tranny
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...turbos are confusing enough to understand even when you know the measurements...

I wish there was a thread that had a compilation of compressor maps for all these things.
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Old December 12th, 2010, 21:25   #47
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Quote:
Originally Posted by manual_tranny View Post
I wish there was a thread that had a compilation of compressor maps for all these things.
There is/are. Here are several:
http://www.rbracing-rsr.com/turbotech.html
http://22returbo.net/compressormaps/index.html
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Old December 12th, 2010, 22:42   #48
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Wow, that's awesome! Thanks very much, this will keep my head swimming for a while...
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Old December 13th, 2010, 10:08   #49
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Does anyone think there's any significant difference between the GT1749VC and GTB1749VK? Apart from flanges etc...

Ash
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Old December 13th, 2010, 21:43   #50
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Originally Posted by K.I.T.T. View Post
Does anyone think there's any significant difference between the GT1749VC and GTB1749VK? Apart from flanges etc...

Ash

First page!

http://forums.tdiclub.com/showpost.p...23&postcount=8


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Old December 14th, 2010, 01:36   #51
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Originally Posted by dieseleux View Post
Your linked post doesnt give a hint about gtb1749vk....
Also in the list on first page, gtb1749vc info is not completed...
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Old December 14th, 2010, 07:43   #52
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I said GTB1749VK, not GTB1756VK dieseleux

GTB1749VK from 4.2 TDI
compressor wheel:
36mm inlet
49mm outlet
12 blades
turbine wheel:
38mm outlet
43mm inlet
9 blades

1749vc 2.0 tdi 170 cr
intake:
inducer:36.5mm
exducer:49 mm
AR 42
exhaust:
inducer :37.5mm
exducer:???


They look pretty similar to me, apart from the turbine exduced and AR for the 1749VK is not known. There's only 0.5mm difference between some specifications...were they both measured using calipers?


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Old December 15th, 2010, 10:51   #53
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My fault!



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Old December 27th, 2010, 23:34   #54
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Had my GTB2056VL hotside apart for cleaning tonight. Decided to measure the wheel as the turbine inducer size is missing on the previous posts.
Turbine inducer is 47mm, all other measurements match what has been previously posted. So it appears to have identical wheel measurements on both the hot and cold sides as the GTB2056V from the Alfa.
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Old January 4th, 2011, 03:31   #55
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Quote:
Originally Posted by im570rm View Post
Since i've been asked so many times about this here are some measurments that i took to several turbos ,please feel free to add then ones not listed
gtb2260vk audi version 3.0 tdi 233/240 bhp:
intake:
inducer: 44.5mm
exducer: 60mm
AR 45
exhaust:
inducer :50mm
exducer:45mm


gtb2056vk audi q7 version 3.0 tdi 233 bhp
intake:
inducer:41.5mm
exducer:56 mm
AR 45
exhaust:
inducer :50mm
exducer:43mm


gtb1756vk audi 2.7 tdi 190 bhp
intake:
inducer:41.5mm
exducer:56 mm
AR 45
exhaust:
inducer :50mm
exducer:41mm

Ciprian, are you sure that GTB17/20/22 all have same turbine inducer diameter? (I dont think so though....)

Regards, Alex
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Old January 4th, 2011, 06:39   #56
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only 17 and 20 haves 41.5,2260 haves 44.5
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Old January 4th, 2011, 06:47   #57
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Sorry for my bad request, i was reffering to turbine sizes, not compressor ; -)
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Old January 4th, 2011, 09:06   #58
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Quote:
Originally Posted by majesty78 View Post
Ciprian, are you sure that GTB17/20/22 all have same turbine inducer diameter? (I dont think so though....)

Regards, Alex
dont think so. my 1756vk has at least 40mm outside on wall. maybe 39 from blade to blade..
059 145 715 T
765314-4
and also :
059 145 715 R
765314-3

Last edited by T3-UN1; January 4th, 2011 at 09:50.
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Old January 4th, 2011, 14:01   #59
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Quote:
Originally Posted by shakescreek View Post
Had my GTB2056VL hotside apart for cleaning tonight. Decided to measure the wheel as the turbine inducer size is missing on the previous posts.
Turbine inducer is 47mm, all other measurements match what has been previously posted. So it appears to have identical wheel measurements on both the hot and cold sides as the GTB2056V from the Alfa.
Alfa has 43mm turbine exducer vs 42mm for the Volvo one.
Compressors are indeed the same.
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Old February 26th, 2011, 11:47   #60
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GT3571KLNV Hino 4.7L ? 4 cyl
Compressor
.58 A/R
50.5mm inducer
Turbine
.82 A/R
62mm exducer

GT4082KLNV Hino 7.8L ? 6cyl
Compressor
.58 A/R
57mm inducer
Turbine
1.24 A/R
64mm exducer


I'm curious what the specs are on the GTA3776VK.

Last edited by andy2; December 17th, 2011 at 16:28. Reason: wrong turbo
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