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Need help or oppinions.

This is a discussion on Need help or oppinions. within the GM Trucks forums, part of the Vehicle Specific category; The truck in my sig injector duty cycle is 100% at approx 80-90% TPS. I need upgraded injectors but I ...

  1. #1
    Junior Member
    Join Date
    Nov 2012
    Location
    Lowell Michigan
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    9

    White
    99 Chevy Silverado 5.3

    Need help or oppinions.

    The truck in my sig injector duty cycle is 100% at approx 80-90% TPS. I need upgraded injectors but I was thinking used injectors cost $250, I might as well upgrade everything and do a nnbs intake with stock injectors for close to the same price but a little more work. I found an 07 e85 Tahoe intake manifold with stock fuel rails and stock injectors (injector part #12594512). Im looking for some experience or oppinions. What makes more sense for the long run. Upgrade my stock injectors to 8.1 marine multech injectors. Or upgrade to 07 intake manifold. And if i upgrade to 07 intake setup will the stock injectors be enough for my engine. Any oppinions or advice would be helpful. I know the nnbs intake manifold is returnless and takes some work to make it function correctly.
    Last edited by kogelch; 11-19-2012 at 06:01 PM. Reason: no sig showing
    99 Silverado 5.3, 30 over, heads milled 30 thou, 212 218 Low Lift LSx Cam,
    LT headers, ASP UD Pulleys, MSD 8mm wires, Volant Ram Air, E-Fans, LS1 fan harness,
    I-6 TB Stall, 3" magnaflow cats, flowmaster Y pipe,
    Walker Muffler, RS 9000 Shocks, 4.56 gears, 33" BFG All Terrains.

  2. #2
    Member
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    Oct 2012
    Location
    ardmore oklahoma
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    121

    yellow
    2004 pontiac gto

    what are the expectations of your engine. it all depends on how much you are going to expect out of it. if all you need is a little more fuel, then i would upgrade the injectors.

  3. #3
    Junior Member
    Join Date
    Nov 2012
    Location
    Lowell Michigan
    Posts
    9

    White
    99 Chevy Silverado 5.3

    I really only need a little more fuel. My injector duty cycle maxes out at approx 80% TPS. But I also have a bad habit of never turning down a new project. Especially if it means more power and better flow. I'd really like to convert it to a DBW TB at the same time if possible.

  4. #4
    Junior Member
    Join Date
    Nov 2012
    Location
    Lowell Michigan
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    9

    White
    99 Chevy Silverado 5.3

    Does the Dr.x Adapter work on 99's. Ive tried checking for a few wesites but find anyting on the ones ive looked at. They say nothing sold in that category for ym application.. Anyone have a link where i can find one if it does exsist.

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