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  1. R

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

    Yes that is right, but with a different regulator it is a lot less worse. Tested on 3 1HDFT engines, most std pump maxed out. Same results so I dont think the pump is bad. Took some pictures for you about the timing piston. I guess there is some room left, so the spacer might work IF the case...
  2. IP80

    IP80

    • remy
    • Media item
    • Comments: 0
    • Category: 80-series
  3. IP80

    IP80

    • remy
    • Media item
    • Comments: 0
    • Category: 80-series
  4. IP80

    IP80

    • remy
    • Media item
    • Comments: 0
    • Category: 80-series
  5. IP80

    IP80

    • remy
    • Media item
    • Comments: 0
    • Category: 80-series
  6. IP

    IP

    • remy
    • Media item
    • Comments: 0
    • Category: 80-series
  7. R

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

    Seems that a differend shimmed pressure control valve will control the internal pump pressure a lot better than the original one. Messing around with the timing piston wont help when there isnt sufficient pump pressure on the high output pumps. Measured the pressure a few times and it will drop...
  8. R

    Looking for input on 2H Compound Turbo build

    Yanmar is 12mm
  9. R

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

    Ft camplate is already 3.2mm
  10. R

    The 2H/12H-T/1HZ/1HD-T/1HD-FT Gturbo Alternative Tech Thread

    Your compressor wheel is way too big.
  11. R

    12HT Boost Compensator Diaphragm

    The spring is very stiff. Almost not compressable by hand. Also very hard to replace when the pump is on the engine.
  12. R

    1990 HDJ81 front calipers same as 89 BJ73?

    Wont fit either.
  13. R

    RTH: GTurbo got lazy after highway drive, slow to build boost, lower boost levels than normal

    I would try with smoke and/or vacuum in the intake.
  14. R

    RTH: GTurbo got lazy after highway drive, slow to build boost, lower boost levels than normal

    Main fuel screw not tightened?
  15. R

    REBUILD A442F HYDRO HDJ81

    Probably a bad engine install method?
  16. R

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

    Will work. Much deeper than 4.5mm doenst have effect as the follower pin isn't any longer. Tuning will be a lot easier with the builtin hard stop. No messing around with shims etc. However i would prefer the stock ramp profile so the fuel tapers out on max boost. (if pump can deliver enough fuel...
  17. R

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

    Is it for 1hdt of ft pump. Output will be a lot different with the same pins because of the internal geometry of the pump. Finally get my hands of a spare ft pump and pulled it apart. Adjustability of this pump is a lot better than the 1hdt pump.
  18. R

    injector seat removal

    Ive welded a left handed tap onto a t key. Saved me headaches many times
  19. R

    F to Diesel direct swap?

    2h engine with bellhousing and clutch will fit.
  20. R

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

    4mm
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