z32 modified fuel rail

Discussion in 'Technical' started by ezzupturbo, Feb 5, 2010.

  1. beaver

    beaver southern zeds

    Get it right

    right mate, the 300deg rails are insulated from the lower plenum.
     
  2. Mitch

    Mitch Has one gear: GO

    Are we talking about 'real' 300 degree rails here beaver?

    300 Degree SCAAAANDAL!!!!
     
  3. Tektrader

    Tektrader Z32 Hoe, service me baby

    LOL, you call that insulated !!! Those sleaves dont thermally do SHIT and the bottom of the rail is still in contact with the lower pleum.

    Have a look at the stock rail, the flags are only joined to the tube by a small fillet of braze AND the insulators have about 5mm of plastic top and bottom between the metal and the bolt.

    The less thermal mass the fuel rail has the better.
     
    Last edited: Feb 7, 2010
  4. ezzupturbo

    ezzupturbo JDMAutomotive

    so how would it be if i get them ceramic coated??
    better or worse
     
  5. beaver

    beaver southern zeds

    Yes i do

    call that insulated, and the bottom of the rail dose not contact the lower plenum at all stop the guess work B/S and do some rearch bud.


     
  6. e-z

    e-z New Member

    so did you go into a machine shop to have them drilled out, do you have a pic of stock rails for comparison? im thinking of doing this and twin feed mod to my motor with stock rail and injectors for drifting, just to be sure..
    also any on have a pic of series 1 and 2 rails so ican check mine?
    i have a cima with z32 motor in it but not sure on series
     
  7. BLACK BEAST

    BLACK BEAST SLICKTOP TT R-SPEC

    easy way to tell is by the injectors you are using.. (disregard the arrows- not mine)
    series 1 pintle
    [​IMG]

    series 2 pintle-less
    [​IMG]
     
    e-z likes this.
  8. e-z

    e-z New Member

    thanks mate. and are the rails different? or can i do this to both rails?
     
  9. BLACK BEAST

    BLACK BEAST SLICKTOP TT R-SPEC

    you can modify both series 1 and 2 rails the same twin in/out
     
  10. e-z

    e-z New Member

    and drilling out? thanks
     
  11. ezzupturbo

    ezzupturbo JDMAutomotive

    yea i just got a long series 13mm drill and drilled straight through the tiged new larger fittings on the end.

     
  12. ezzupturbo

    ezzupturbo JDMAutomotive

    If someone has a pic or can take a pic of inside where the injector sits on a stock rail can they post it as my pics have gone missing.
     
  13. BLACK BEAST

    BLACK BEAST SLICKTOP TT R-SPEC

    13mm is bigger than -8an id

    what was it stock?
     
  14. ezzupturbo

    ezzupturbo JDMAutomotive

    the stock lines are like 5mm id and in where the injector is there are two 7mm holes.

     
  15. Tektrader

    Tektrader Z32 Hoe, service me baby

    No bullshit or guessing, look at the picture

    [​IMG]

    Wheres the gap between the rail and the lower plenum ?? If you are telling me that .1 of a MM of plastic is going to stop heat transfer between the lower plenum and the fuel rail THAT IS WHAT IS BULLSHIT. :rolleyes:

    Fact is THEY ARE $700 BLING, dont work better and are in fact worse than what has been done with the fuel rail in this thread.

    The whole 300 degree fuel rail is in very close proximity to the lower plenum and will heat up a lot more than a stock modded fuel rail which is thermally insulated with 5mm each side of the mounting points with plastic. At least air can circulate around the stock rail.

    The bore size is identical between the two when the stock one is modded like Ezzups.

    Facts are NOT guessing and bullshit.

    Here's better pic

    [​IMG]

    Little or No gap here and if there is its WAY too small. No thermal insulation here to be had
     
    Last edited: Feb 7, 2010
  16. beaver

    beaver southern zeds

    Take it up

    with somebody who gaf, you can hack up as many stock rails as you like and say there the best thing since tits, but that fact is the 300deg rail is completely insulated from the lower plenum, so your wrong,again, in saying its not. As for the rest of your reply, its sad mate.

     
  17. ezzupturbo

    ezzupturbo JDMAutomotive

    more pics

    took more pics of how restrictive these stock rails are
    [​IMG]
    before...... My new fittings.......
    [​IMG]
    Restrictive injector bucket
    [​IMG]
    Been drilled out
    [​IMG]
    before drilled out
    [​IMG]
    can just see injector filter
    [​IMG]
     
  18. Tektrader

    Tektrader Z32 Hoe, service me baby

    Pity, critiszm cant be taken properly. Clearly you CAN give a F#ck or you wouldnt bother arguing.

    Nothing sad about dispelling bullshit like "these are expensive so they must be better". Dont let the truth get in the way of a good story.

    If you think they are thermally insulated thats fine, hope you like em. The pictures DONT LIE.

    They are a piss weak attempt to keep heat out of the rail. May as well not have any shouldered washers on there at all for all the good they will do.

    I will leave this discussion here. The pics dont lie and future discussion is useless.

    Well done Ezzup
     
  19. ezzupturbo

    ezzupturbo JDMAutomotive

    more pics

    ill keep out of this feud... im not saying there better than 300 degree rails just saying its a very cheap alternative to spending bulk money on them. Anyway more pics. these are of the vq rail witch i think are like the s2 rails


    [​IMG]
    chop chop
    [​IMG]
    [​IMG]
    ITS DRILLIN TIME
    [​IMG]
    AFTER
    [​IMG]
    BEFORE
     
    e-z likes this.
  20. e-z

    e-z New Member

    wow i am very impressed, this is awesome news for me, free fuel upgrades, im deffinately doing this mod even with stock injectors, and the twin feed mod also! helps i am running 2 external pumps..
    this is great work!
     

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