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Thread: in need of a 09 or newer cts v tune.??

  1. #1
    Tuner in Training
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    in need of a 09 or newer cts v tune.??

    Im looking for a file someone can send to me with a dyno tune. Im interested in one with a tune that had upped the boost (12-14psi). I need to see how some of the bigger shops got the injector cycle duty to stay around 85%.. I turned up the psi (72)but it still gets 105%.. (AFR right on)
    I got a 2.55 and cold air intake. stock injectors
    [email protected]

    thanks.

    ps i looked on the hp files online but not what i need..

  2. #2
    Senior Tuner edcmat-l1's Avatar
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    What is the A/F? What is "right on"? If you're A/F is "right on" and your injectors are 105%, you need bigger injectors, or more fuel pump, if it's dropping pressure. Can't tune around that. Can't tune in lower IDC.

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  3. #3
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    afr is right around 11.5 across the board. drops a little after 5800rpm (no more injector).

    if i can figer out how to load my tune and a log i did, i will if that helps.

  4. #4
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    my car has 58k miles on it now. I was told over and over by some bigger name shops that my injectors are good for 625-650 rwhp. is there any way my pump is getting week?? it just dont make sense im at 555 rwhp and im at 105%..

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  6. #6
    Tuner in Training
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    Attachment 30475


    anything on this one need to be changed??

  7. #7
    Tuner in Training
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    You are past the power level for the injectors. I have been there. Currently running ID850's and north of 650rwhp and all is well. 57% on meth 71% off meth

    550rwhp @ 11.6:1 AFR you need to think about injectors.
    2009 CTS-V 2.9l KDi Whipple- Stainless Works 2" pimary headers-Stainles works 3" exhaust-New Era-KD Innovations ported TB-KDi HX-KDi HX pump-222/234 .605"/.615" 120lsa +3

  8. #8
    Tuner turbo_denali's Avatar
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    yep seen that befor time for bigger injectors
    2005 yukon Denali turbo,@15#s 4L80E,1978 z28 lq4,1974 corvette ls6. there is no measurment of power without load.

  9. #9
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    Also, if you don't have a cam is there a reason your spinning the thing to 6600rpm ? The stock cam with your boost level stops building power at right about 6000rpm which if you look at you IJDC at 6k is 95%
    2009 CTS-V 2.9l KDi Whipple- Stainless Works 2" pimary headers-Stainles works 3" exhaust-New Era-KD Innovations ported TB-KDi HX-KDi HX pump-222/234 .605"/.615" 120lsa +3

  10. #10
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    Ive only ran it to that 6500 mark twice.. I know it stops making power around 6100 rpm. If im drag racing ill run it to about 62-6300 rpm, I like to have a little higher mph for the next gear. It seems to work a little better than shifting earlier.

    I know what you guys are saying about the bigger injectors, (bigger injectors will bring the duty down) but how come there are guys making 625+ on stock injectors and im only at 555?

  11. #11
    Tuner TimC's Avatar
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    Do other guys have a boost-a-pump? I made 563 with my stock 48s boost referenced with a KB boost-a-pump. Stock STS-V pump started dropping pressure at less than 460.
    1971 Corvette-LS3 swap with custom cam. Stainless headers and sheet metal intake built by the owner. 442rwhp.

    2007 STS-V-Billet Precision 67mm turbo swap. 563rwhp@15psi.

    1991 Camaro-6.0 swap with LS6 heads and custom cam. Headers and other swap bits fabricated by myself (wife's car)