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Thread: new injectors???

  1. #1

    new injectors???

    i got a 2000 silverado with the 5.3 in it. i got it camed, intake, nelson tune and shorty headers. don't plan to do anything else in it but gears which i just ordered. is it worth putting injectors in it.. read a little about it but don't know if its worth it

  2. #2
    Join Date
    Mar 2007
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    You should be just fine. You might keep your eye out for some 8.1L truck injectors. I paid $24 for my set I used to have.

    You're right on the edge from needing and not needing them. I wouldn't worry about it unless you find some for a good deal.

  3. #3
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    Honeywood, Ontario
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    Or some flex fuel injectors, 36# instead of the stock 24#
    2006 Silverado
    Little Black Bitch

  4. #4
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    have your truck scanned and the injector duty cycle logged. This will let you know whether you need to upgrade or not.

  5. #5
    awsome!! thank you for the info..if i did get new injectors would my cpu have to be reflashed by nelson's?

  6. #6
    Join Date
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    Quote Originally Posted by craigtheman View Post
    awsome!! thank you for the info..if i did get new injectors would my cpu have to be reflashed by nelson's?
    Yes, he would need to update the tune for the different size injectors.

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

  7. #7
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    Also if you do get injectors, make sure you get some that have good data available.

  8. #8
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    Quote Originally Posted by randomhero View Post
    You should be just fine. You might keep your eye out for some 8.1L truck injectors. I paid $24 for my set I used to have.

    You're right on the edge from needing and not needing them. I wouldn't worry about it unless you find some for a good deal.
    How big are the 8.1 injectors?
    01 ecsb 5.3 4x4 z71
    Avalanche 17s and a pant load of miles

    61 Corvette
    350, 4 speed, 4.56's

    32 Ford 4 door sedan
    keeping it "stockish"

  9. #9
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    Quote Originally Posted by straightaxle View Post
    How big are the 8.1 injectors?
    Regular 8.1's are 32# and the marine 8.1's are 42#.

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

  10. #10
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
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    Quote Originally Posted by sleeper1500 View Post
    Or some flex fuel injectors, 34# instead of the stock 26#
    +1

    Oh, and Devin, I fixed your post.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

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