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    • XDI LT4 injectors will support ~1200 wheel horsepower on straight E85

      We wrote about XDI (Xtreme-DI) fuel injector upgrades for the Gen V direct injected GM small block before. Now we have the exact number the LT4 injectors will support on straight E85 and that number is 1200 rear wheel horsepower as tested by Katech and Lingenfelter.


      Quote Originally Posted by XDI
      Our new LT4+65% high fuel flow injectors are based on the original GM LT4 injector, which makes them a perfect drop in solution. Straight E85, 1200whp GDI only!
      These are a drop in solution so essentially plug and play.

      Everything works with the factory ECU:

      Quote Originally Posted by XDI
      Our 100% XDI manufactured and tested DI-Injectors are designed for the new GM LT series engines. With a 65% increase in flow over stock LT4 injectors, these supply the required fuel flow for high horsepower applications without the need for auxiliary fuel systems. These injectors are based on the original GM LT4 injector, which makes them a perfect drop in solution. Most of the ECU Injector characteristics stay the same.

      Every Injector gets tested at 100bar and 200bar on OEM testing equipment at XDI. Every set gets flow matched to within 1% at 100bar and 200bar fuel pressure !!!

      Testing on fully instrumented engine (8x O2, 8x EGT) done by Katech Inc. has shown unequaled results in terms of cylinder distribution, repeatability and stability at pressures up to 2900psi. Tuning changes required are minimal, offsets and current driver parameters stay the same. The injectors are E85 compatible.

      Impressive? You bet.

      2014+ C7 Corvette LT1
      2015+ C7 Z06 Corvette LT4
      2019 C7 ZR1 Corvette LT5
      2016+ Camaro SS LT1
      2017+ Camaro ZL1 LT4
      2016+ CTS-V LT4
      2014+ Silverado and Sierra with 4.3L LV3, 5.3L L83 and 6.2L L86 engines
      2015+ Suburban, Tahoe, Yukon and Escalade with 5.3L L83 and 6.2L L86 engines

      rated static flow rate: 25.6g/sec at 10MPa
      67% more flow than production LT1/L86 injectors (15.3g/sec)
      45% more flow than production LT4 injectors (17.7g/sec)
      E85 compatible


      This article was originally published in forum thread: XDI LT4 injector will support ~1200 wheel horsepower on straight E85 started by Sticky View original post
      Comments 5 Comments
      1. F87Source's Avatar
        F87Source -
        Finally a solution for di guys that eliminates the limitations and safety issues of pi.

        I heard they were going to make some stuff for BMW as well which is always good.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by F87Source Click here to enlarge
        I heard they were going to make some stuff for BMW as well which is always good.
        They have several working BMW solutions which have been on the market for some time now.
      1. F87Source's Avatar
        F87Source -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        They have several working BMW solutions which have been on the market for some time now.
        Yup I'm well aware of that, xdi 35 and xdi 60 hpfps.

        What I meant to say was they're making some injector replacements for bmws as well.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by F87Source Click here to enlarge
        What I meant to say was they're making some injector replacements for bmws as well.
        Ah, I see. Where did they announce that?
      1. F87Source's Avatar
        F87Source -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Ah, I see. Where did they announce that?
        It was just a reply in the comment section, they said they had plans for bmw soon.