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70 mm str throttle body

Discussion in 'Engine Building' started by khai_tuan_nguyen, Jun 4, 2004.

  1. khai_tuan_nguyen

    khai_tuan_nguyen Senior Member

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    I was thinking of buying a 70 mm STR throttle body.

    Here is my setup


    B16 vtec head
    CTR cams, valvesprings and retainers, str cam gears
    JDM type r header with 2.5 collector
    Injen 3" CAI
    AEBS (type r style) intake with 65 mm inlet

    B20b block
    JE 12:1 pistons

    Tuned with hondata

    I can get all str throttle bodies at the same price. So I went for the largest, will having too large of a throttle hurt power at all, or will it be fine?

    Thanks
     
  2. ndogg

    ndogg Member

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    i would just go with the 65. a 70 could potentially hurt performance on that setup.
     
  3. khai_tuan_nguyen

    khai_tuan_nguyen Senior Member

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    thanks what do the rest of you think?

    KHai
     
  4. Bl6CRX

    Bl6CRX Senior Member

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    warning on the STR throttle bodies, they stick like a mutha!!, 70 is too big for that setup, my buddy has the JG tb and it doesn't stick at all, id go that way...
     
  5. khai_tuan_nguyen

    khai_tuan_nguyen Senior Member

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    Well what happens if I go too big?
     
  6. khai_tuan_nguyen

    khai_tuan_nguyen Senior Member

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  7. projectxspeed

    projectxspeed Senior Member

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    Yes there is such a thing as too big. If your throttle body is too big it will unbalance your air/fuel/spark mixture, and you will actually end up losing power.
     
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