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compression

Discussion in 'Engine Building' started by 96civhb, Sep 20, 2005.

  1. 96civhb

    96civhb Junior Member

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    what is the reason for using lower compression for a turbo setup and higher compression for non-turbo ?
     
  2. drpenguin

    drpenguin Senior Member

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    its easier to tune with a low comp then it is to tune with a high comp
     
  3. esp4life

    esp4life Member

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    can you get more power out of stock or higher compression than lowering the compression with the same amount of boost?
     
  4. formby

    formby learning in progress

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    yes..... but detonation might be a problem at a certain CR...like above 10.5:1......
     
  5. esp4life

    esp4life Member

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    i heard water injection can help with preventing detonation. would it be possible then to run higher than 10.5:1 with water injection?
     
  6. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    i just always heard that lower compression was used for fi. being the assuming person i am, i thought it was to save the engine. if you use 11:1 compression w/ a turbo id assume itd be easier to throw a rod or the like...gotta think...you are putting a lot more pressure on that engine than what it was designed for....
     
  7. erebunicrx

    erebunicrx my name is Dale

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    people turbo stock gsr's,b16's and type r's all the time. you just dont want to turbo a 13:1 cr. in other words if your building a turbo motor dont throw high comp pistons in. run lower compression and more boost
     
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