Nems NA to TT conversion, with an added suprise ;)

Discussion in 'Z Re-builds' started by SRB-2NV, Jan 22, 2014.

  1. SRB-2NV

    SRB-2NV #TEAMROB

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    Here is the large turbo ill be using for the compound build, its a twin scroll GT4202R with a 1.05a/r turbine, this'll be rear mounted in the spare wheel well with a quick spool valve 2018-11-05 19.12.06.jpg

    Oil scavenge pump to pump oil back to the motor
    2018-11-05 19.12.52.jpg
     
  2. MikeZ32

    MikeZ32 das Über member

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    haha very cool. Is that an Ebay turbo? A lot of piping to get from the rear wheel well back into the engine bay.
     
  3. SRB-2NV

    SRB-2NV #TEAMROB

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    Yep, generic china spec turbo. Didn't want to take the chance of blowing a genuine turbo due to oiling issues. Once the whole system is sorted and working this turbo will be sent to hypergear for a rebuild and maybe even a comp wheel upgrade.

    The current plan is to run a 3" pipe to the intake T piece, which will be remade in either stainless or mild.
     
  4. MikeZ32

    MikeZ32 das Über member

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    Good plan, these ebay turbos are actually all journal bearing and easily rebuilt.

    Are you going to have piping running through the cabin? I just can't imagine space under the car for this.
     
  5. Boll!

    Boll! Member

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    Very interested to see how this progresses.
    Will you be running a seperate wastegate for the 42?
     
  6. SRB-2NV

    SRB-2NV #TEAMROB

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    Under the car, few guys run rear mounts on zeds and have space, this will be a bit tougher since the stockers will still be up front. I'll have to get creative with the routing though.

    Few metres of 3" mild steel and a split pulse t4 flange arrived today. Just need to sort out a few things before i go ahead.

    Plan is to go from the cats which are 2.5" to a single 3" pipe to the boot with a QSV then 4" to a single muffler.
     
  7. badxtc

    badxtc kirby's bitch

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    so to be clear, you are going to run stock turbos in the stock location and a lagger turbo in the back of the car , so this will be a 3 turbo set up , i mean this sounds really cool id love to see it all done, should get up and boogie

    ( i haven't read all your thread )
     
  8. SRB-2NV

    SRB-2NV #TEAMROB

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    Exactly, stock twins up front, large single in rear. Compound turbo setup. Boost pressure numbers from the turbos add together however the pressure ratios multiply due to the small turbos receiving air at a higher pressure than atmospheric.
     
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  9. badxtc

    badxtc kirby's bitch

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    ok sounds interesting , keep it up , id like to see it finished , your going to need to set up all the turbos for accurate boost pressures but you will sort it out , just need to make sure the fronts dont become blow -throughs. would be interesting to see what happens on the dyno
     
  10. SRB-2NV

    SRB-2NV #TEAMROB

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    Still have quite a few more bits to collect but its getting there slowly
    2018-11-10 22.26.30.jpg
     
  11. SRB-2NV

    SRB-2NV #TEAMROB

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    For sure man, probably a 40mm or so. Plus ill be using another external gate as a spool valve.
     
  12. SRB-2NV

    SRB-2NV #TEAMROB

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    Wastegates are in, just waiting for a few new gaskets, brass t pieces, braided clutch line and other random crap to come in.
    received_263982534467047.jpeg received_211634163069524.jpeg
     

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