Z32 Harts TT restomod build thread

Discussion in 'Member's Garage' started by Harts, Oct 7, 2020.

  1. SRB-2NV

    SRB-2NV #TEAMROB

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    245rwkw at 14psi with E85 is a touch on the low side. What other mods does the car have? My car with all the bolt ons did 266rwkw at 12.5psi and 301rwkw at 18psi dropping to 16psi past 5000rpm and another stock turbo zed i tuned did 298rwkw. I'd be keen to see the timing map.. as boost wise past 5000rpm you will have trouble getting it to hold another 3psi to redline.
     
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  2. Harts

    Harts Active Member

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    @SRB-2NV performance mods are:

    3" exhaust from turbo back
    2.5" intercooler piping and z1 big SMCs
    1000cc Side feed injectors
    Deatschwerk DW300 fuel pump
    Radium FPR
    LinkG4 with flex sensor
    K&N filter

    That's it really! I'm still waiting on the dyno print out, won't be happening at the moment as we are in lockdown. I'll post all info as and when I get it though.

    Cheers!
     
  3. SRB-2NV

    SRB-2NV #TEAMROB

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    You have the same mods as i did when i made that figure except you have a larger exhaust. I'm thinking the tuner has been way too soft on the timing..

    Mine was:
    3" dumps
    2.5" catback
    2.5" cooler piping
    2.5" turbo inlets
    Japtek mammoth smics
    1000cc top feed injectors
    Bde rails
    Nistune ecu
    Apexi pod filter
     
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  4. Harts

    Harts Active Member

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    Maybe so, I asked them to keep turbo pressure down and make it super safe because I don't intend to rebuild for 3-5 years... or until it breaks :)
     
  5. SRB-2NV

    SRB-2NV #TEAMROB

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    Mine made that figure at 18psi dropping to 16, which is just about the limit of the factory wastegates. Another few psi wont give you more than 20-30kw of power. Thats why im saying the timing is probably fairly soft.

    Up the boost, when my car was only running the stockers i ran 18-20psi for 5 years or so.
     
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  6. Harts

    Harts Active Member

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    Yeah, I hear you. Having not seen the data, I can't speak to it, but it very well could be the case.

    Ill turn the wick up next year and see what happens, but I'm happy until then. It's plenty as I have the car currently set up, MCA Reds are on the way, I need to get those Veilside wheels with bigger rubber on and a big brake upgrade before I start worrying about more power.
     
  7. IB

    IB ?????

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    Stock turbos might be the limiting factor. High flow turbos should let your tuner find more power without adding much more boost.

    Mine makes 280rwkw on 98 at 17psi with high flows.
     
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  8. Harts

    Harts Active Member

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    I bet high flows would make a fantastic difference, but I won't be touching the turbos until the engine build, I hate doing things twice (if I don't need to). That power figure of yours is great though :)

    My intention is to run a twin G series set-up on the built engine down the line.

    Started the roof moulding replacements today, but the rain cut me off. I replaced the two rearmost mouldings and began the passenger windscreen moulding and then the sky opened up. Ill try again tomorrow!
    [​IMG]

    I installed my two new OEM guage pods as well (AC and Lights, my AC pod was broken where the hazard/retainer mount attached), thanks @rob260 ... got my forum stubble holder and lanyard too! I feel like I have taken a step with the stubble on board hahaha!
     
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  9. IB

    IB ?????

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    New G25 turbos should way out perform any high flows. What's the planned time frame for them?
     
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  10. Harts

    Harts Active Member

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    Good question, I'm saying 3-5 years before build, but at the rate I'm getting through things with the car, maybe end '22 or start '23.
     
  11. Harts

    Harts Active Member

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    Not that I have looked at the G's up close yet, but I'll probably look for a G28 twin set-up, having heard the frame sizes are small and super efficient. I'll be shooting for 750'ish hp, at least that's in mind mind, I really haven't done the research into any of it yet because I want to suspension/brake/respray/retrim first.

    I will say that I don't want to push the boost curve too many rpm forward, I'm hoping the cutting edge G series will give me good spool and allow me to reach my power goals. On my last build (10 years ago) I ran a gt3076r on my 2.6l Tomei RB25 build. Its recline was 10000rpm, so any rpm I lost going up in frame size was offset by the rev limit increase. I understand it is more difficult to make the VG rev higher, so I'll be keen to control the start of the boost curve a little more by staying with a smaller frame size. Anyone with info on the G series frame sizes and output on Z32's feel free to chime in!
     
  12. Harts

    Harts Active Member

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    Finished up lock down with replacing the roof mouldings and restoring the window mouldings, all back on now. Small jobs on my 300zx list slowly getting knocked off, which is always good.

    [​IMG] [​IMG]
     
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  13. MintZ32

    MintZ32 Active Member

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    I had mine re-painted when my car was re-sprayed, but they are simply not as good as a new set! did you source through Z1?
     
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  14. Harts

    Harts Active Member

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    Yeah mate, I did a couple of large orders so I snuck them in, I think they were around US$270 ish + ship. I was happy to pay that but not the US$ 500+ for the Kamilaroi window mouldings

    And for anyone interested, I used SEM Trim Black for the mouldings (I did the wipers with that as well, last year).
     
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  15. Harts

    Harts Active Member

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    I'm halfway through a house renovation, but I thought I'd drop these here. I hope everyone and their Z are having more fun than I am at the moment!
    [​IMG] [​IMG]
     
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