Info Required Re JUN Cams

Discussion in 'Z32 Technical' started by Boll!, Jan 29, 2019.

  1. Boll!

    Boll! Active Member

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    Hi Guys.
    So im at the point of getting a torque converter spec'd up for the single turbo build, and am trying to get some more info around the JUN 272 (9.5 Intake and Exhaust) cams, Ideally like the JWT cam spec card, but i cant get this from JUN as they dont reply to emails.

    Does anyone know how they compare to a JWT cam, could one of there spec cards be close?

    Any help is appreciated.

    Cheers.

    Col
     
  2. rob260

    rob260 Moderator Staff Member

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    They don’t do cam spec cards... it’s pretty frustrating.

    If you want to get an idea of poweband etc have a look in my build thread there are some dyno charts.
     
  3. Boll!

    Boll! Active Member

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    I actually got a reply from a Jun mechanic.
    Told me how to measure them lol

    Who has a set not fitted they want to measure

    JUN Auto Mechanic
    3-1-7 Sekimachikita Nerimaku Tokyo
    Tel 81-3-3920-4165 Fax 81-3-3594-2689
    Feb 3
    Dear Mr. Nolan
    Thank you for your mail. We dont have any data with cam lift 0.050 "which
    you wanted.

    1. Take the center angle 110 degree from TDC at the primary cam lobe in
    the intake cam and 115 degree in the exhaust cam.

    Thank you,
     
    Chrispy likes this.
  4. Boll!

    Boll! Active Member

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    After a fair few back and forth emails with Jun, I do believe I have the answer-for anyone interested.

    Dear Colin

    > How are you? Its 230 degree at 0.05 inch lift. But its difficult to take a measurement because of HLA.

    :)
     
  5. LitlElvis

    LitlElvis Z32 Servant

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    110° ATDC for the intake is surprising to me, the OE manual cam is 125° ATDC while the OE automatic cam is 120°. So the JUN 272 would be advanced by 10 to 15°... are these meant to be a non-VTC cam?
     
  6. Boll!

    Boll! Active Member

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    Hi mate.
    I really don’t know to be honest, this is far from my level of expertise.
    But I will not be using VTC
     
  7. rob260

    rob260 Moderator Staff Member

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    Yeah I've previously been told that the center line is same as stock...
     

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