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Thread: Performance gains Black Box???

  1. #1
    DX User
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    Performance gains Black Box???

    Any performance gains expected after removing the black box and the vacumm mess. I have searched and read how its done but not enough info on performance gains.



  2. #2

    Joay's Avatar
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    Re: Performance gains Black Box???

    None apparent. Can't imagine there's more than a miniscule difference, if any.

  3. #3


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    Re: Performance gains Black Box???

    I think with carbs is what they are talking about mostly. I cant see messing with the "black box" other than hiding it. The map sensor is in there and its needed for the FI to work.

    We have a excellant FI setup for the year of our car and a very good set up compared to other cars.


    wp
    1988 Lxi owner since August 1995
    336k miles running strong!
    Now running E85.

    Oldblueaccord <<< MY YOUTUBE PAGE!

  4. #4

    2drSE-i's Avatar
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    Re: Performance gains Black Box???

    yea, we very easily could have got that MPFI mess that others got.....
    '89 SE-i Coupe
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    Quote Originally Posted by AccordEpicenter View Post
    its better to be retarded than advanced

  5. #5
    LX User
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    Re: Performance gains Black Box???

    We do have MPFI. You mean TBI?

  6. #6
    LX User stephensimmons's Avatar
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    Re: Performance gains Black Box???

    Quote Originally Posted by -DWM- View Post
    We do have MPFI. You mean TBI?
    No we have PGM-FI not MPFI. Theres a difference.

  7. #7
    3Geez Veteran A18A's Avatar
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    Re: Performance gains Black Box???

    programmed fuel injection & multi-point fuel injection, we have both

  8. #8

    2drSE-i's Avatar
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    Re: Performance gains Black Box???

    I meant DPFI, like the gayvics have.
    '89 SE-i Coupe
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    Quote Originally Posted by AccordEpicenter View Post
    its better to be retarded than advanced

  9. #9

    2ndGenGuy's Avatar
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    Re: Performance gains Black Box???

    PGM-FI is the "Honda Brand" of fuel injection. MPFI refers to Multi Point Fuel Injection, which is a type where fuel is injected at multiple locations (each runner). It's more of a generic term. PGM-FI can be dual point, or multi point. They're both still "Programmed Fuel Injection" as Honda calls it.

  10. #10
    3Geez Veteran MessyHonda's Avatar
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    Re: Performance gains Black Box???

    Quote Originally Posted by blknblu View Post
    Any performance gains expected after removing the black box and the vacumm mess. I have searched and read how its done but not enough info on performance gains.
    dont take it out....i took mine out and my idle is bad...not till you really go obd1 so you can tune it out....i hate driving my car in the city because my cam is a bitch with the stage 3 clutch and shitty idle going up hills(sf is just full of hills)

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  11. #11
    DX User soonerck's Avatar
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    Re: Performance gains Black Box???

    Quote Originally Posted by MessyHonda View Post
    not till you really go obd1 so you can tune it out....
    How do you convert the black box to obd1?
    1985 Honda Accord SE-i
    AKA: Brown Betty
    1981 Accord Hatch
    Long gone (sister totaled)
    1996 Accord
    Long gone (sold to sister-in-law, then totaled)

  12. #12
    3Geez Veteran A18A's Avatar
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    Re: Performance gains Black Box???

    You don't. For your car to be obd1, you get a obd1 ecu & make your car run off that

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