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Hydra chip in stock obs

Discussion in '7.3L Powerstroke Diesels' started by Kraig, Jan 21, 2020.

  1. Kraig

    Kraig Full Access Member

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    Hey all,
    I have a simple question. It may be a dumb question but here goes.

    I just installed a hydra php with full force diesel tunes. My truck is a manual Tranny with a 3” turbo back exhaust and no muffler. That is the extent of the modifications.
    Can I run this hydra without gauges if I never tow? Or at least what is the max tune I can run.
     
  2. DaveBen

    DaveBen Supporting Member Supporting Member

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    You should NEVER run a modded diesel without gauges. Get an EGT at least. You will melt your engine if you don't get gauges.
     
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  3. 79jasper

    79jasper Chickenhawk

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    What year truck? If stock obs 90cc injectors, you couldn't hurt it if you tried. (Minus crappy tuning)
    If using the php tune library, they have everything at a safe limit.

    Sent from my SM-N960U using Tapatalk
     
  4. Kraig

    Kraig Full Access Member

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    The injectors Are stock. And it is just the canned tunes from full force diesel. Nothing custom and like previously mentioned, only the exhaust has been upgraded.
     
  5. Kraig

    Kraig Full Access Member

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    Oh and it’s a 1995
     
  6. greenskeeper

    greenskeeper Full Access Member

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    As mentioned you'd probably be ok, but why risk it?

    Stock my OBS pretty much maxes out at 1100 degrees which it can take all day long.

    However, mine is an automatic where it will downshift at some point....a manual trans you could end up being in too tall of a gear for the load.
     
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  7. Kraig

    Kraig Full Access Member

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    Oh I don’t plan on leaving it right now. I am planning to install an egt sensor in the near future. I just wanted to know if was stupid to run for a while like it is.
     
  8. bbjordan

    bbjordan Snow Monkey

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    If you take it easy on the engine you should be ok, but you probably didn't get the hydra to "take it easy", did you? ;PokeLOL
     
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  9. Kraig

    Kraig Full Access Member

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    Well honestly I’m normally pretty soft footed. But I just wanted the extra oomph for when I take a mind to. Lol. But I’m no teenager.
     
  10. greenskeeper

    greenskeeper Full Access Member

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    totaldieselperformance.com has a nice "economy" tune for the hydra chip that sips fuel until you go more than 50% throttle...then it pulls quite nicely. That might be what your looking for aside from the straight off idle tranny killer tunes.
     

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