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throttle body question

Discussion in 'Civic and CRX - EW' started by gmctruck68, Apr 4, 2009.

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  1. gmctruck68

    gmctruck68 New Member

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    what is the stock mm of the throttle body on the 91 si crx, and what is an acceptable upgrade? found a blox 66mm throttle body on ebay is that a good one?
     
  2. jlicrx

    jlicrx Senior Member

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    stock throttle body is 55mm - the only throttle bodies that fit the 88-91 CRX/Civic D16A6 intake manifold are the 88-91 CRX/Civic D16A6 and 88-89 Integra D16A1 - all of the 92 and up throttle bodies have a different bolt pattern - unless you have some serious internal mods, going larger than a few mm with the throttle body is just going to slow the car down
     
  3. gmctruck68

    gmctruck68 New Member

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    i am going to rebuild the bottom end, new rings, hone job, new bearings, and i have a venom intake manifold im going to put on it, i was thinking with the addition of bigger injectors and a chip in the computer, would i benefit from a larger throttle body, i would need a larger throttle body if im going to add that venom intake right? and i wanted to turbo as well, just a street set up
     
  4. efhondakid

    efhondakid My name is Byron. VIP

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    TB size should be matched to the cam profile you are running, stock cam, stock TB.
     
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