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Thread: Does anyone know what size injectors are in a 2010 ZL575?

  1. #1
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    Does anyone know what size injectors are in a 2010 ZL575?

    This is the tune we pulled out...I did a lot for the car already...but I'd really like to calibrate it better...this IFR table just makes no sense to me though...

    For what it's worth...the car was a bit of a disaster when we got it on the dyno...it's EXACTLY how it came from SLP...and it was pegging the wideband below 10:1 AFR at WOT before we got started.

  2. #2
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    ...and yes I know they're increasing the pump duty cycle at 4000 RPM...but I still don't understand the IFR table.

  3. #3
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    i have worked on one of these and they come with 52# @ 4bar zr1 injectors,
    2010 camaro L99, Magnacharger TVS 2300, 415ci LS3,Kooks long tubes, yank ss3200, 3.73 rear

  4. #4
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    the tune you posted is different than the one i have from a 2010 slp zl575 car, you can find the stock file from the one i worked on in the file repository
    Last edited by camaro1; 08-01-2011 at 08:47 PM.
    2010 camaro L99, Magnacharger TVS 2300, 415ci LS3,Kooks long tubes, yank ss3200, 3.73 rear

  5. #5
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    I saw that tune too...looks very very similar but still not the same...I don't know what to make of it. The car was nowhere close to running the way SLP said it did until after we spent a LOT of time on the dyno.

  6. #6
    Senior Tuner DSteck's Avatar
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    I can confirm they are LS9 injectors.

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  7. #7
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    ...so if I were to put the fuel pump duty cycle table back to 90% and then run all the injector calibration from a ZR1...I might have a better shot at figuring out the rest of the tune?

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    or just copy from the file i posted in the repository as that car ran fine with the slp settings,, not that we didnt change alot to make it run better later, but it did do just fine on the slp tune
    2010 camaro L99, Magnacharger TVS 2300, 415ci LS3,Kooks long tubes, yank ss3200, 3.73 rear

  9. #9
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    Quote Originally Posted by camaro1 View Post
    or just copy from the file i posted in the repository as that car ran fine with the slp settings,, not that we didnt change alot to make it run better later, but it did do just fine on the slp tune
    You can't just look at the comparison log...look at the actual changes. They're really very minor differences in the overall file, and they do not explain why the one I tuned pegged the wideband below 10:1 AFR when we first started making pulls before tuning it. Your file has a slightly different IFR table...but it's really the same thing.

  10. #10
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    Can you post the file here...the one I found in the repository shows 45.3 in the IFR table...I don't think you and I are comparing the same 2 files.

  11. #11
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    sorry i dont know what i was looking at, the files are almost the same
    2010 camaro L99, Magnacharger TVS 2300, 415ci LS3,Kooks long tubes, yank ss3200, 3.73 rear