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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 14th, 2018, 13:55   #721
TDIMeister
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Previous x40d's were V8s but BMW has taken to creative and confusing naming scheme so now it's nothing more than a single turbo "Twin Power" inline-6. What you most likely saw at the breakers was a GTB2260V. Nothing all that special about them in the day and age of sequential x35d/x50d and ball-bearing turbos used elsewhere. The 6-digit Garrett PN will help a lot, then you can cross reference it here or here.
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Old May 14th, 2018, 21:06   #722
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Hi, Thanks FOR taking The tine to answer, This was no ordinary gtb2260, it was a lot bigger than what i ever saw and it had billet compressor wheel. I have had a few gtb2260v in my hands at some time and these were a lot bigger...I might go there once more and take a picture of the I’d tag with the part numbers and we’ll take it from there !
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Old May 15th, 2018, 06:34   #723
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So bmw has moved away from biturbo setup on their 35d/40d models? It used to have kp35 and k26.
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Old May 23rd, 2018, 13:03   #724
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Hello I'm adding a turbo RPM sensor. Do anybody know what The specs on the gtb2260? Max RPM.
Thx!
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Old May 23rd, 2018, 13:25   #725
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Quote:
Originally Posted by Syncrogreg View Post
Hello I'm adding a turbo RPM sensor. Do anybody know what The specs on the gtb2260? Max RPM.
Thx!
Assuming Max compressor wheel tip speed is 580 m/s, V=pi*exducer_dia*RPM/60 and some algebra.
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Old May 23rd, 2018, 13:48   #726
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Thanks for the info. I'm looking for the turbo Map with speed lines of the 2260. It should look something like that: https://www.google.com/search?q=gtb2...cXCW-x4JZZTcM:
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Old May 23rd, 2018, 13:51   #727
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It looks like I should not exceed 155000RPM

If anybody can provide the turbo spec that would be awesome. In the meantime I'll run 155000RPM.


Greg
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Old May 23rd, 2018, 14:04   #728
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There is no one single map for all the probably dozens of 2260 variants. The map will be affected by trim, turbo generation, blade design/configuration, housing A/R, presence of a recirculation port (ported shroud), extended tip, etc., etc. The absolute minimum additional piece of info you need to make close to the correct match is trim; 55 trim will have a very different map from a 48 trim, even on the same GT generation and 60mm nominal exducer diameter.
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Old June 19th, 2018, 18:58   #729
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I'm looking to reduce the under hood temps and would like to see if a turbo blanket does the trick.

I was wondering if someone could take some measurements of their Audi GTB2260VK turbo?

They require the outer circumference of the turbine housing and the width of the housing. If you need a visual reference of what they need, then click on the link, scroll down and click on the TURBO SIZING tab.
DEI Turbo Blanket

TIA
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