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Thread: Coversion from Carb to Tuned port injection - worth it?
          
   
   

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  1. 12-04-2006 09:44 AM #1
    pnut
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    Coversion from Carb to Tuned port injection - worth it?

     



    I have a Holley carb on my mildly build Small Block 355. I don't like it because it is too big for my application, and the fuel bowls drain when I am on angles offroad.

    I had planned to switch to a quadrajet carb, but I have come across a full TPI setup for $500 (yes it's checked good, 350 injections, and comes with everything I need including gaskets).

    Is it worth it? I will get better fuel economy, more response and driveability, no stalling on steep hills, and if I'm lucky, a few more HP.

    I ask because I just don't see spending $150 on a quadrajet, just to do the FI in a year or so. I would like to hear your opinions.
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  3. 12-04-2006 10:44 AM #2
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    slowpoke
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    Yes to driveability, but I bet you spend double that by the time it is installed and running. Especially if you don't have a wiring harness and computer yet. One place to look at is www.jimsperformance.com for good info.
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  4. 12-04-2006 11:56 AM #3
    Dave Severson
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    I've got an entire tpi setup laying around that came off an '86 Camaro with a 305. The car was running, though not real good. The car is getting a brand new LS engine and I don't need it. I'd sell you the whole works for less then half that including the computer. I don't have the wiring harness...
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  5. 12-04-2006 01:43 PM #4
    pnut
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    Quote Originally Posted by Dave Severson
    I've got an entire tpi setup laying around that came off an '86 Camaro with a 305. The car was running, though not real good. The car is getting a brand new LS engine and I don't need it. I'd sell you the whole works for less then half that including the computer. I don't have the wiring harness...
    I appreciate the offer, but I am planning to get a complete, tested system with proper chip and correct injections. Plus the wire harness is a huge deal.
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  6. 12-04-2006 01:46 PM #5
    Dave Severson
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    No problem, let me know if you need any of the pieces, be glad to help you out. Nobody around here is too interested in any of it....
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  7. 12-04-2006 02:22 PM #6
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    lt1s10
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    Is it worth it? I will get better fuel economy, more response and driveability, no stalling on steep hills, and if I'm lucky, a few more HP.

    yes, yes, yes, yes and yes!
    Mike
    check my home page out!!!
    http://hometown.aol.com/kanhandco2/index.html



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  8. 12-04-2006 05:41 PM #7
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    kitz
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    Yes but,

    My '86 TPI Z28 had to have the injectors floated every 4 months. It would start a sputterin' and missin' and crud ..... I don't really know why either, just FYI ...........

    Kitz
    Jon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400
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  9. 12-04-2006 05:50 PM #8
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    randywrench
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    TPI works really well,I have it on my 355.
    Make sure the fuel pump and tank are right.
    TEAMWORK is essential, it allows you to blame someone else!
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