Page 2 of 9 FirstFirst 1234 ... LastLast
Results 11 to 20 of 84

Thread: Turbos that work on a 4BD1.

  1. #11
    85 county is offline AULRO Holiday Reward Points Winner!
    Join Date
    Sep 2010
    Location
    adelaide
    Posts
    2,250
    Total Downloaded
    0
    i think there may be a need for a format

    Brand
    Flange
    AR
    AR
    manifold
    out let Dia


    etc something like that

  2. #12
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
    Posts
    14,276
    Total Downloaded
    0
    good idea guys and i am pretty sure somebody ask me some time ago to set up a tread like this.........

    happy to make it a sticky and a standard format sounds like a good idea

    to keep this thread as a good resource i was thinking it would be best if its just kept to the detail of each setup only. questions and comments can be asked in seperate threads

    your thoughts?

  3. #13
    Join Date
    Jul 2008
    Location
    Cessnock NSW
    Posts
    1,506
    Total Downloaded
    0
    Yeah this might end up a bit messy due to questions we all have...if we are gunna do compressor and turbine a/r's we may as well add photos of the turbo mounted to the motor just to give everyone ideas of size,positioning and orientation maybe ?

  4. #14
    Join Date
    Jul 2006
    Location
    East-South-East Girt-By-Sea
    Posts
    17,578
    Total Downloaded
    0
    All the turbos described here seem to be T25 flange requiring a T3 to T25 adapter which suits the OEM Isuzu manifold.

    Does anyone have a T3 flange turbo model that suits the 4BD1 in our Landies?

  5. #15
    Join Date
    Aug 2006
    Location
    WA
    Posts
    13,786
    Total Downloaded
    0
    Quote Originally Posted by Lotz-A-Landies View Post
    All the turbos described here seem to be T25 flange requiring a T3 to T25 adapter which suits the OEM Isuzu manifold.

    Does anyone have a T3 flange turbo model that suits the 4BD1 in our Landies?
    AFAIK, apart from the OEM turbo, all others with a T3 flange will be too large.

    Most listed here should perform better than the OEM turbo.

  6. #16
    Join Date
    Sep 2007
    Location
    Kiwiland
    Posts
    7,246
    Total Downloaded
    0
    There is a T3 flanged turbo off a Nissan RB20 engine that will fit. I have no experience with it, but someone here (might have been Craig-E) fitted one years back.

  7. #17
    Join Date
    Sep 2007
    Location
    Adelaide, SA
    Posts
    1,906
    Total Downloaded
    0
    Quote Originally Posted by Lotz-A-Landies View Post
    All the turbos described here seem to be T25 flange requiring a T3 to T25 adapter which suits the OEM Isuzu manifold.

    Does anyone have a T3 flange turbo model that suits the 4BD1 in our Landies?
    I have an oil cooled T3 flanged garrett turbo (turbine housing A/R of 0.48, compressor 0.42) off a Merc OM603 3L diesel on mine. Develops 10psi at ~1500rpm and tops out at 18psi at 2000rpm+ with the fuel screw turned out by 1.5 turn. The wastegate is wired shut although I suspect it may have developed a leak at full tune (was a backyard job for a one-off trip)

    It's great for highway driving / overtaking in current tune, but still has plenty of untapped potential - preturbo EGT's in the 500 to 550 range. Mind you it is also intercooled.

    Under full pedal, it still slips the clutch (non-turbo pressure plate) driving @ 80km/h+ in 4th gear. Pics below.







    I understand Saab 900 turbos are of a similar size also.

  8. #18
    Join Date
    Sep 2007
    Location
    Aussie Expat in NZ
    Posts
    3,451
    Total Downloaded
    0
    Quote Originally Posted by Lotz-A-Landies View Post
    All the turbos described here seem to be T25 flange requiring a T3 to T25 adapter which suits the OEM Isuzu manifold.

    Does anyone have a T3 flange turbo model that suits the 4BD1 in our Landies?
    There are a few Isuzu manifolds... the one that I have is T25 I think and supports the BorgWarner EFR 6258. I'll add it here once I know it works.
    Hercules: 1986 110 Isuzu 3.9 (4BD1-T)
    Brutus: 1969 109 ExMil 2a FFT (loved and lost)

  9. #19
    Join Date
    Jul 2006
    Location
    East-South-East Girt-By-Sea
    Posts
    17,578
    Total Downloaded
    0
    OK when we talk about compressor/turbine wheels which would be preferred and why?

    .50 A/R Compressor, .63A/R Turbine
    .58 A/R compressor, .50A/R Turbine

    and why?

  10. #20
    Join Date
    Sep 2007
    Location
    Kiwiland
    Posts
    7,246
    Total Downloaded
    0
    Quote Originally Posted by Lotz-A-Landies View Post
    OK when we talk about compressor/turbine wheels which would be preferred and why?

    .50 A/R Compressor, .63A/R Turbine
    .58 A/R compressor, .50A/R Turbine

    and why?
    Mostly we are including this information for identification reasons, some turbos come with different options for turbine housings, which can be used to setup the turbo to work better at low rpm vs higher rpm.
    The compressor housing's are usually matched to the wheel inside, so checking the A/R of the housing is just another check that you have the right turbo.

    For example, a garrett turbo with turbine A/R of 0.49 and compressor A/R of 0.48 is likely a T25 with the 51.3mm compressor wheel.
    A turbo that looked the same externally but had a 0.64 A/R turbine housing and 0.8 A/R compressor cover would be a T25G with the 54mm compressor wheel.

    But that is how they come from the factory, you can swap parts to your hearts content within some turbo families.

Page 2 of 9 FirstFirst 1234 ... LastLast

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!