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Discussion in 'The Garage' started by boz42, Mar 19, 2004.

  1. boz42

    boz42 1/2 ton status GMOTM Winner

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    i have hunted on the net tonight & haven't been able to find any info on this. i want to put one of these behind a BBC chevy that makes around 475hp & 550ft/lbs. it also has a 150 shot of gas. the propose vehicle is a 69 chevy truck i have a couple of questions?

    1. who makes a stand alone computer for (how much $$) these

    2. who makes a speedo conversion to drive a factory speedo?

    3. does any one make a stall converter i will need one around the 2500rpm range?

    are the conversion parts affordable?


    thanks for any help or advice. /forums/images/graemlins/thumb.gif
     
  2. Confedneck

    Confedneck 3/4 ton status

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    Re: 4l80e in a non-computer controlled truck

    1. JET
    2. Dont Know
    3. TCI
     
  3. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: 4l80e in a non-computer controlled truck

    Last I recall, the standalone setup for the 4L80E was upwards of $500.

    jagsthatrun.com has various speedometer/VSS drivers that might be what you are looking for.
     
  4. azblazor

    azblazor 1/2 ton status Premium Member

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    Re: 4l80e in a non-computer controlled truck

    [ QUOTE ]

    1. who makes a stand alone computer for (how much $$) these

    [/ QUOTE ]

    TCI,Compushift,there are a couple of others also. You can also use a 91-93 chevy diesel truck computer that came with a 4l80e.

    [ QUOTE ]
    2. who makes a speedo conversion to drive a factory speedo?

    [/ QUOTE ]

    There are a couple of manufactures that make a gizmo to take a VSS signal and run a mechanical speedo - if thats what you are asking.

    [ QUOTE ]
    3. does any one make a stall converter i will need one around the 2500rpm range?

    [/ QUOTE ]

    Several companies - Jet is one and there is a place in Phoenix - Performance Transmission I think.

    [ QUOTE ]
    are the conversion parts affordable?

    [/ QUOTE ]

    Subjective question. Yes if you want or need to run a 4l80e - and you can afford it. No otherwise. I have bought TCI controllers for $400. A new Compushift is around $950. Plus you need VSS input, RPM input and TPS input.
     
  5. jwduke

    jwduke 1/2 ton status

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    Re: 4l80e in a non-computer controlled truck

    [ QUOTE ]
    Last I recall, the standalone setup for the 4L80E was upwards of $500.

    jagsthatrun.com has various speedometer/VSS drivers that might be what you are looking for.

    [/ QUOTE ]

    I'm not trying to hijack this post (sorry), but I went to jagsthatrun.com, and they say ALL TBI engines use VSS, I don't think so....... My '87 doesn't, or does it?? Again sorry, and now back to your regularly scheduled post!
     
  6. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    Re: 4l80e in a non-computer controlled truck

    [ QUOTE ]
    [ QUOTE ]
    Last I recall, the standalone setup for the 4L80E was upwards of $500.

    jagsthatrun.com has various speedometer/VSS drivers that might be what you are looking for.

    [/ QUOTE ]

    I'm not trying to hijack this post (sorry), but I went to jagsthatrun.com, and they say ALL TBI engines use VSS, I don't think so....... My '87 doesn't, or does it?? Again sorry, and now back to your regularly scheduled post!

    [/ QUOTE ]

    your TBI has a VSS, but it is on the back of the cluster, driven by the speedo cable
     
  7. jwduke

    jwduke 1/2 ton status

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    Re: 4l80e in a non-computer controlled truck

    Since I added 4.56 gears & '35's, can I get by changing the gear at the transmission to get things correct?
     
  8. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: 4l80e in a non-computer controlled truck

    Yep. Electric Speedo's are the only ones that didn't use gears to drive the speedometer/VSS.
     

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