GTB2260VZK fiting core

hello, I have GTB2260vzk with melted T3 flange.

I have priority question:

for gtb2260vzk housing is easy to fit new core gtb2260vk?
(because easy to connect oil pipes) or its uncompatible?

Second question:

Its possible fit core gtb2260vklr to this gtb2260vzk housing?

Thanks

Info question:

Is possible modify gtb2260vk to higher rpm? from 160 000 to 170 000?
Or 180 000rpm? why? (more pressure and more flow)
means more power but same upspin in low RPM

no and no. at least not plug and play.

Easiest solution would be to buy a fresh used 2260vzk of ebay germany..

usually spinning the comressor much faster then the rated tip seed results in the inducer becoming chocked (as in a restrictor) and this causes the efficiency to drop steeply. if you need more flow a more efficient or a comressorwheel with a bigger inducer is the way ahead.

+1 to Ruben and to add what to what he is saying by means of a graphic:


An engine is able to take in a certain amount of air at a given RPM, regardless of the turbo attached to it, as shown by the pink curves. Taking the 4000 RPM line for example, raising the RPM of the turbo (requesting more boost pressure) moves you up along the 4000 RPM line towards higher mass flow and pressure ratios and the shaft RPM is where the pink line intersects with the dark blue curves with labels at the right-hand side. So this particular turbo matched to the engine spins at 139998 RPM at just under PR=2 (about 14.5 PSI) / 15.5 lb/min, and at 179x99 RPM operates at about PR=2.65 and 20 lb/min.

You will note, however as you get toward the right side of the map, the curves of constant RPM bend down. This means that increasing the RPM is not accompanied by a proportional increase in mass flow. This is the choking that Ruben mentioned.

Turbochargers are rated to certain "tip speeds". This is calculated by V=r*omega (omega is the angular velocity in radians per second). This is equal to V=r*(2*pi*RPM/60). A modern turbo is able to withstand about 520 m/s beyond which efficiency drastically decline and may also exceed the structural strength and creep resistance of the wheel design and materials. This limit is constantly moving upward with improving technology of the latest generation turbos; for example, the Borg Warner EFR series can do 580 m/s and may be even higher with even more recent turbo designs.

For a 52mm exducer compressor wheel, r=0.026m, so the maximum RPM is 60*V/(2*pi*r) or 190986 RPM. Assuming a pretty recent design, a 60mm compressor with 560 m/s tip speed limit gives a max. RPM of 178253 RPM and this limit should be respected for good reason!

buy a lathe and milling machine
then they will fit together with ease

hello, thanks for answers.

I have VZK housing GT2260, but is difficult to buy billett 11 blade core. But if is possible buy VK core its very easy way about max 400eur with better bearing and light billett whell.

normal rpm for gtb2260vk is about 150 000 - 160 00rpm. If you boost more rpm after surge line you loss only efficiency but more strain for bearing.
If you buy better core with stronger bearing. Is possible run to safe 170 000rpm. cca 10%+ power

But question is:

Is possible fit modified core from VK to VZK housing? I have information exhaust housing 100% from VZK fit with VK core. intake compressor whell have same diameter but I dont now if have same angle of climb blades? Is need mechanical milling compressor housing?

Thanks

afaik vzk and vk exh housing is not plug and play interchangeable. but I could remember wrongly.

I would just buy a vzk core. they're not alot more expensive then vk on ebay germany and fit the billt cw on that.

Or if you anyway plan on taking a risk to see if the vk fits the vzk turbine housing, buy a GTD2060 of the 272hp engine (you can easily recognize on V band turbine inlets). Has billet wheel from factory and should in every way be superior to a 2260vk

Something like this comes for 400 with speed sensor included https://www.ebay.de/itm/Org-Audi-A4-8W-A5-F5-Q5-FY-Abgasturbolader-059145873DL-Turbolader-3-0-TDI-DCPC/182930167010?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D49132%26meid%3Df3efc7256a0a45718ef64403917ca8ba%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D372108695277%26itm%3D182930167010&_trksid=p2047675.c100005.m1851

I have one extra almost new gtd2060vzk if someone is interested.

Yeah just get another VZK if that's what you already got (though I wonder how the OP is dealing with adapting the dual-entry turbine inlet into presumably his 4 cylinder TDI). I still have a certain preference for the VKLR but the GTD2060 sure has some compelling advantages...

That deal on eBay is pretty good!

hello,
yes vklr is the best.

how is the diference between GTD2060VZK and gtb2260vzk?

I have melted T3 flange on gtb2260vzk exhaust housing, but before melting - look like very similary to GTD2060VZ on ebay picture from Rub87

I have this exhaust manifold:
https://www.ebay.com/itm/Turbokrumm...797183?hash=item281cea1ebf:g:DeUAAOSw0fhXlk1C

Before I plan buy gtx2860R with ceramic beraing but its more expensive and hard to find trim 57 under 1500 dolars

gtx2860 isnt really much more advantage I think. better use something like efr7064 if you want to end up near 400hp. also if you melt turbine I would run a bit less fuel or more timing. pistons won't like it too long otherwise =)

... or more boost.

I think by "melt" he means "weld"

Hello, and sorry - yes I welding T3 on GTB2260VZK, no melting, LOL

Now for me is best way - replace my damaged CHRA GTB2260VZK by new core? Could not find on ebay user whose replace on gtb2260vzk compressor stock impller to billett with 11 blades

maybe VZK have lighwight compressor whell? have only 49grams and have 60mm but +1mm Tapered Tip Exducer, Deep superback.
If you want I post photos disassembled GTB2260VZK


I have new question for my friend :

He have GT30 housing with damaged GTX3076R core, is possible fit new but gen2 core GTX3076Rgen2 core? Thanks

Please have any dinensions compressor housing GTB2260vklr? my have 135mm and inner diameter for flange 108.4mm
Thanks