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Thread: Any experience w/ "Injector gain vs cyl" ECM 12313

  1. #21
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    Fueling on the plugs - Very obvious when you have a white plug vs a good burning plug
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  2. #22
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    Quote Originally Posted by GHuggins View Post
    Fueling on the plugs - Very obvious when you have a white plug vs a good burning plug
    Cant believe more dont look into this but ive heard people say it didnt act as advertised over the years. I think SAM saw a 7% diff in the rear cylinder A/F at 720 flywheel level or so.
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere

  3. #23
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    Yeah, I've noticed adjustments only "really" need to be made on higher boost and 700+ to the tire setups... Anything eaton based has bad problems - haven't seen anything that bad on whipples or any other setups especially if they're using the stock intake manifold with a centri or turbo - just primarily eaton blowers...

    The first one of these I had really bad problems with was a Magnuson Heartbeat at 21psi - actually melted the ground electrode off in cylinder 8... No matter what I tried with injection timing, different rail, injector and regulator setup - still was lean... Wasn't till I started tuning with the individual cyl gains that I fixed the problem...
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  4. #24
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    messed with it a tad last night, pissed the motor off about 4k rpms. Msec spiked and dumped fuel, then flattened out after that. picked up 6 whp by doing it.
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.

  5. #25
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    Hmm, I haven't had any problems with it that I've seen. Even the Hennessy vehicles I've tuned have been using these tables. Interesting.
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  6. #26
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    Quote Originally Posted by GHuggins View Post
    Hmm, I haven't had any problems with it that I've seen. Even the Hennessy vehicles I've tuned have been using these tables. Interesting.
    not sure what happened. 750whp on a stock pump with a BAP may have had more to do with it than previously lead to believe.
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.

  7. #27
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    Tried this on my ZL1 and did not work. Car has minimal mods: Lungtubes, JLT intake. All I did was enable 'injector gain' then changed values for cyl# B & C to 1.02. At 4000 rpm it cuts out, goes lean and fuel pressure drops to 30 psi for a split second. Any Ideas? It seems like the problem is the fuel pressure dropping.
    Attached Images Attached Images
    Last edited by coolmo; 12-05-2017 at 11:23 AM.
    '13 ZL1

  8. #28
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    If this is all you have done then you shouldn't need to adjust anything in regards to fuel pressure or injectors. Just dial in the MAF. You might just have other failing hard components.
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  9. #29
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    that is exactly what the v did while messing with it.
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.

  10. #30
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    Quote Originally Posted by GHuggins View Post
    If this is all you have done then you shouldn't need to adjust anything in regards to fuel pressure or injectors. Just dial in the MAF. You might just have other failing hard components.
    Yes I realize I don't "need" to use these settings. Injector gain is obviously causing issues though. If I turn it off the car runs perfect up to redline and fuel pressure doesn't drop like a rock at 4k rpm.
    '13 ZL1

  11. #31
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    Quote Originally Posted by Area47 View Post
    that is exactly what the v did while messing with it.
    I seems like GHuggins is the only one that's got this to work.
    '13 ZL1

  12. #32
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    It's most likely just OS to OS issues... I've used this on quite a few now and haven't had problems, BUT here lately it seems like I'm getting a run of OS headaches where I can't fix a problem because I don't have access to the right stuff... Like I've said before every Hennessey vehicle I've gotten in has had this populated and in use...
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  13. #33
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    Quote Originally Posted by coolmo View Post
    I seems like GHuggins is the only one that's got this to work.
    it's an OS to OS issue is what it comes down to. Just like the ifr vs volts. not all OS have this active.
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.

  14. #34
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    This is a shop car, so I don't mind posting this one... It's using the injector gain setup - in fact I dialed it back for testing on a pull and lost 15hp, so I know it's beneficial - that wasn't even fully disabled... This is the car in my signature too...
    Attached Files Attached Files
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  15. #35
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    So can you list the OS youve successfully used this on, and guys where it did wacky stuff, can you list your OS so we can build a table of which function properly and which dont. im sure some of the smart guys in here could likely then swap segments in to get the feature working right. its definitely beneficial for the LSA blown cars
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere

  16. #36
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    Sounds good to me. Is this what you need?

    main operating system: 12653669 does not work. Issues at 4000 rpm, fuel pressure drops below 30psi
    '13 ZL1

  17. #37
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    Quote Originally Posted by GHuggins View Post
    This is a shop car, so I don't mind posting this one... It's using the injector gain setup - in fact I dialed it back for testing on a pull and lost 15hp, so I know it's beneficial - that wasn't even fully disabled... This is the car in my signature too...
    Thanks. Do I need version 3.7 to open that? Won't open with 3.6
    '13 ZL1

  18. #38
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    yes
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  19. #39
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    Huggins how about some OS's
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere

  20. #40
    Advanced Tuner jsllc's Avatar
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    2012 E67 OS: 12652955
    2013 E67 OS: 12653669 (Huggins car)