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  1. M

    MATH+Logic: An engineering approach in search for a perfect TURBO.

    hmm Interesting, So was the single and twin scroll both the same a/r or cm2 however holset measure it
  2. M

    MATH+Logic: An engineering approach in search for a perfect TURBO.

    I did sort of think that, they mention they make heaps of power but yeah the driveability down low could be a very different story haha
  3. M

    MATH+Logic: An engineering approach in search for a perfect TURBO.

    NIce, might have to sus the other options, and as you mentioned at least if i were to build a t4 twin scroll manifold it opens up heaps of other options. Interesting on the sxe being able to run silly boost and not fall apart, makes it easier to not have to worry about a wastegate haha. I also...
  4. M

    MATH+Logic: An engineering approach in search for a perfect TURBO.

    Sounds like the Twin scroll is the go, being a larger unit would help with spool up too I suppose, not that im a guru by any means but looks like the 6758 isnt very far behind in flow going buy the compressor maps. That is unreal economy, yours is a manual correct? is that corrected for the...
  5. M

    MATH+Logic: An engineering approach in search for a perfect TURBO.

    Hows the Borgwarner going? if im feeling fancy id like to upgrade in the new year and this looks like a very interesting option
  6. M

    Micro-Tube Parallel Flow Condenser

    Starting to warm up down under and I'm looking at replacing my condenser with one of these parallel flow ones, however my rig was originally r12, 05 month 1992. I see one post of someone saying it works in the old r12 system once ya tap one hole out but just thought I'd check if anyone else has...
  7. M

    1HDT Bad Clunk and Vibration: Stranded

    What was the injector pump timing set to? Too advanced can flog big ends in no time, even worse on these old girls with sensitive big ends/timing specs to start with and again even worse if you lug them hard in low revs have high oil clearance and poor oil quality. I think this is why in the...
  8. M

    DIY Variable vane turbo controller using cheep programable petrol engine ECU.

    Engine braking dose sound nice but I'm just a little worried about over speeding the turbo, however a lot of people run a set up like that and have no troubles so it could be just overthinking the situation or being scared after reading a few once off problems people have had. At coast there...
  9. M

    DIY Variable vane turbo controller using cheep programable petrol engine ECU.

    Hi guys, I have been dreaming of a VNT controller for a mechanical engine and have come across a few set ups that are available, if anyone has used any good ones id be interested to get some feed back. However I have my own idea for anyone else playing at home with some idea on Petrol engine...
  10. M

    Growing the family -> HDJ80 VX

    looks mint, be keen to see how the hx35 performs once you wind her up a little. Also what A/C condensor is that? looks better than the stock ones, might have a look into that myself
  11. M

    HDJ80 dome lights out

    ahhh ok being LHD it may be a different harness lay out. so the fuse is good but there is no power to the lights? there should be power to the lights at all times and when the door opens it earths the other side of the bulb out and hey presto we have light so if your missing power to the light...
  12. M

    HDJ80 dome lights out

    not sure where the fuse is but i do recall reading somewhere that as the wires go from the engine bay through the firewall water sits in the loom where there is a join in the wires for the dome lights and the joint rusts out, i think it was the LHS of the engine bay but not super sure. so if you...
  13. M

    AltFuel 1HD-T with Diesel SVO mix?

    Should be ok, but from what i have been told and seen is you might get the injector pump and or old rubber hoses start to leak, so could be expense if you have to re seal the injector pump. they also say that direct injection isnt the best with bio or wvo but many still seem to run it without...
  14. M

    Boost and AFR and cylinder pressure stuff

    Hi guys, So i have been wondering whats "better" for the engine, like less load/stress on components. low boost and low (but safe) afr or high boost and high afr at the same power? Im going to use some very easy numbers as a example, assuming a perfect world with a adequate turbo and...
  15. M

    Oil pressure at idle.

    2000 RPM? pretty sure the book i have said its 36PIS at 3000RPM, ill have to doubble check
  16. M

    1HD-T Intake Manifold Modifications

    Has anyone done any back to back testing of a modified intake yet? like afr/egts even power and torque? I did find this on a Patrol form talking about manifolds on the TD42 diesels, completely different animal i know but the manifold on them looks just as horrid as ours haha. """"""I have...
  17. M

    1993 1hd-t piston selection

    The "marks" are the 3 slightly different size of pistons for the standard bore, hopefully a photo explains it better from a pre 8/92 manual, this is the bore size, there is more pages with piston measurements, rings bearings you name it as well, hopefully someone will pipe up with a link to the...
  18. M

    1HD-T Intake Manifold Modifications

    Can anyone tell me the alloy thickness of the manifolds? id like to modify my spare 1hdt manifold and just working out the best thicknes for the tube wall before i buy anything. Thanks
  19. M

    The Official 1HD-T/FT Fuel Pump Mod Tuning Thread

    I had a similar thing with my spare engine, same specs to yours except 3 inch exhaust and safari cooler. egts would start to climb rapidly once you got near 3 grand, but below 2600ish i could hold it flat and it wouldnt see more than 550-600 degrees c (pre turbo). I thought exactly the same...
  20. M

    BEB 1HDT Taiho Kogyo Con - Rod Bearings

    I bought a set hear in Australia only a few months ago, wonder if they have stopped making them all together or just need to stock up? is there another decent jap company that makes them?
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