NefMoto > Technical > Tuning > Is the ball bearing turbo worthwile on 1.8T?
Pages: [1]
« previous next »
Author Topic: Is the ball bearing turbo worthwile on 1.8T?  (Read 4065 times)
BlackT
Hero Member
*****

Karma: +79/-40
Offline Offline

Posts: 1425
« on: July 10, 2019, 12:22:37 AM »
My turbo is making noise, so I thinking of replace it.
Car is A4 B6 BEX, turbo is original K03s.
It is everyday car, no need for too much power.
I can repair this turbo, or buy my old k03 hibrid(K04 compresor wheel)
But let's skip details i have another question. Is there significant difference betwen spol rate of this K03/k04 and lets say some garret ball bearing for same power.
Is it possible achive about 230-250 crank horse power, and 1 bar boost at about 2500 rpm?
« Last Edit: July 10, 2019, 12:27:20 AM by BlackT » Logged
aef
Hero Member
*****

Karma: +70/-46
Offline Offline

Posts: 1601
« Reply #1 on: July 10, 2019, 12:30:59 AM »
You wont find a modern garrett with up to date technology like extendet tip in this size range.
Also a hybrid will have less space between housing and compressor and a better balancing than a garrett build in high quantities.

So what you compare is old garrett technology with newest up to date hybrid compressor and turbine.

Journal bearing can be fixed but ball bearing not that easy...
Logged
fknbrkn
Hero Member
*****

Karma: +186/-24
Offline Offline

Posts: 1455


mk4 1.8T AUM
« Reply #2 on: July 10, 2019, 05:27:39 AM »
Stock k04 is the best choice for you
Or you can go for an tfsi ihi with some mods.
Logged
nyet
Administrator
Hero Member
*****

Karma: +608/-168
Online Online

Posts: 12270


WWW
« Reply #3 on: July 10, 2019, 08:52:42 AM »
The "ball bearing turbos spool faster" thing is a myth.
Logged
ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
BlackT
Hero Member
*****

Karma: +79/-40
Offline Offline

Posts: 1425
« Reply #4 on: July 10, 2019, 12:47:53 PM »
Quote from: fukenbroken on July 10, 2019, 05:27:39 AM
Stock k04 is the best choice for you
Or you can go for an tfsi ihi with some mods.
Realy hard to find in my region, and overpriced  Sad

Thank you for all your answers, you helped me a lot to make decision. I will stay with my original K03s or take that hybrid I already have on my B4
Logged
Blazius
Hero Member
*****

Karma: +89/-40
Online Online

Posts: 1282
« Reply #5 on: July 10, 2019, 02:00:09 PM »
Quote from: BlackT on July 10, 2019, 12:47:53 PM
Realy hard to find in my region, and overpriced  Sad

Thank you for all your answers, you helped me a lot to make decision. I will stay with my original K03s or take that hybrid I already have on my B4

Get a chinese made ko4 from germany then lol.
Logged
prj
Hero Member
*****

Karma: +1072/-481
Offline Offline

Posts: 6037
« Reply #6 on: July 11, 2019, 01:53:45 AM »
Quote from: nyet on July 10, 2019, 08:52:42 AM
The "ball bearing turbos spool faster" thing is a myth.
They have better transient response though generally.
But the bearings affect maybe the last 10% of transient response, the first 90% are the weight of the rotating assembly and TIP.
Logged
PM's will not be answered, so don't even try.
Log your car properly - WinOLS database - Tools/patches
BlackT
Hero Member
*****

Karma: +79/-40
Offline Offline

Posts: 1425
« Reply #7 on: July 11, 2019, 02:59:31 AM »
I found k04-022, rebuild with good price, with little work I think I can adapt it.
Does anybody have a true spec about this turbo, dimensions of compresor and turbine
Logged
Blazius
Hero Member
*****

Karma: +89/-40
Online Online

Posts: 1282
« Reply #8 on: July 11, 2019, 04:06:00 AM »
Quote from: BlackT on July 11, 2019, 02:59:31 AM
I found k04-022, rebuild with good price, with little work I think I can adapt it.
Does anybody have a true spec about this turbo, dimensions of compresor and turbine

Turbine : inducer: 50mm , exd: 42 mm , 12 blades

compressor: inducer: 41,86mm, exducer: 56,06, 4+4 blades. 0,5 bar internal WG.
Logged
Pages: [1]
  Print  
« previous next »
 
Jump to:  

Navigation
Personal Tools
  • November 26, 2024, 05:34:59 PM
  • Welcome, Guest. Please login or register.
    Did you miss your activation email?

    Login with username, password and session length
Search
 
Advanced Search
About Disclaimer
All Rights Reserved 2010 Nefarious Motosports
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.046 seconds with 17 queries. (Pretty URLs adds 0.001s, 0q)