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Thread: L59 32lb injectors...

  1. #1

    L59 32lb injectors...

    What is the horsepower limit on a set of stock 32lb injectors on my 2005 VIN-Z L59 on 93 Octane... I guess what i'm asking is can i run my 5.3 single front mount at about 7 or 8psi and be ok if i upgrade to the 255lph walbro? Or do i STILL need the 42's?
    -2005 1500 Z71 ECSB 6.0 swap, Cooks Racing 4L80E, NP261HD, Carolina Driveline 5" shaft, CST Tie-Rods, front mount 76mm, Livernois hot pipes, Circle-D 258mm (~3500), Mallory 2-step, 100 Dry shot, 750CC RC Eng. Inj, Nelson Tuned, 4.10's, all through a STOCK 10-bolt

  2. #2
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    My money would be on that the FF injectors will not be enough. You do not wanna run short of fuel on a FI motor...or any motor for that reason. Detonation is not good. Go ahead and get 42lbs at least. 8.1L Marine injectors (44 lb/hr) are 100% plug and play.

    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

  3. #3
    Join Date
    Jan 2009
    Location
    Augusta, Ks
    Posts
    3,246
    Id go ahead and spend the money on some 60lb injectors. Ull want more boost later on.
    2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s

    2004 Buell XB12s

    Quote Originally Posted by LamboDoNoMo View Post
    "Never give up, NEVER BACK DOWN!!!"

  4. #4
    Join Date
    Sep 2007
    Location
    Broken Bow, OK
    Posts
    1,434
    Buy bigger and sell me your FFs.

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