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Thread: C7 Corvette tuning ready to go

  1. #41
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    Quote Originally Posted by frans96ss View Post
    No one figured out the throttle issue yet? Its fucking annoying... does it with factory tune also
    If it does it on the factory tune thats not good, means gm doesn't even know how to combat it.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  2. #42
    Senior Tuner DSteck's Avatar
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    Quote Originally Posted by Bill@HPTuners View Post
    If it does it on the factory tune thats not good, means gm doesn't even know how to combat it.
    Or they are purposely restricting it.

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  3. #43
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    Usually gm just builds it in as tq management, this is something different.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  4. #44
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    Quote Originally Posted by Bill@HPTuners View Post
    If it does it on the factory tune thats not good, means gm doesn't even know how to combat it.
    It didnt so it stock until i put headers on it... Its so intermittent though... I ended up making 459/469 but sometimes it closes the throttle and other times it doesnt.

  5. #45
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    Quote Originally Posted by Bill@HPTuners View Post
    If it does it on the factory tune thats not good, means gm doesn't even know how to combat it.
    It didnt so it stock until i put headers on it... Its so intermittent though... I ended up making 459/469 but sometimes it closes the throttle and other times it doesnt.

  6. #46
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    Quote Originally Posted by DSteck View Post
    Or they are purposely restricting it.
    I agree. A sensitive throttle creates drivability issues (read lawsuits and warranty) with this much torgue in traction limited situations and with the manual transmissions for the less informed drivers that will be driving these cars. We just have to find the right way to tune this situation to our preferences.

  7. #47
    Senior Tuner LSxpwrdZ's Avatar
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    This is why I like the old throttle linkage and IACV... when you are WOT... you're WOT!
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  8. #48
    Quote Originally Posted by lsxpwrdz View Post
    this is why i like the old throttle linkage and iacv... When you are wot... You're wot!
    amen!
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  9. #49
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    459rwhp with? Headers and tune?

  10. #50
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    Quote Originally Posted by ingsteve View Post
    459rwhp with? Headers and tune?
    469/475 yes

  11. #51
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    Nice results but what was the stock base dyno?

  12. #52
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    Quote Originally Posted by ingsteve View Post
    Nice results but what was the stock base dyno?
    428/425

  13. #53
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    While reading another thread on the Gen 5 portion of this forum, I read where a GM truck owner felt the Gen 5 trucks had their throttle settings "dumbed down" in comparison to Corvettes and Camaros. This made me think that if I did a compare between the two tunes I might find areas of the two tunes where the C7 tune had more aggressive settings for throttle, etc. where the C7 settings could be altered to get more aggressive. As you might imagine there are a number of differences. After just a cursory review, I found an interesting difference between the two where the C7 settings were LESS than the truck in what appears to be an important area relating to throttle. That table can be found under Engine>Airflow>Electronic Throttle>Throttle Area Limits>Max % Area vs RPM. The C7settings are less? An area for throttle improvement?

    Attached chart shows the C7 settings. The truck settings are all 100's. (mistakenly posted table twice.) Click on thumbnails and they will enlarge.
    Attached Images Attached Images
    Last edited by jim2092; 12-02-2013 at 09:20 AM.

  14. #54
    Advanced Tuner Sébast19X's Avatar
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    Version 2.24.71 and I'm not able to open this file
    Thx for help
    '08 Black Z06
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  15. #55
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    Quote Originally Posted by Sébast19X View Post
    Version 2.24.71 and I'm not able to open this file
    Thx for help
    Likely because that version came out 3 months before the 2014 corvettes. Redownload & install 2.24
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  16. #56
    Quote Originally Posted by frans96ss View Post
    It didnt so it stock until i put headers on it... Its so intermittent though... I ended up making 459/469 but sometimes it closes the throttle and other times it doesnt.
    try logging some of the PIDs mentioned in the throttle section here:

    http://www.hptuners.com/help/vcm_edi...vanced_e78.htm

    Chris...
    I count sheep in hex...

  17. #57
    Senior Tuner mowton's Avatar
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    Quote Originally Posted by Chris@HPTuners View Post
    try logging some of the PIDs mentioned in the throttle section here:

    http://www.hptuners.com/help/vcm_edi...vanced_e78.htm

    Chris...
    Great write-up Chris, it's what opened up my understanding of the Torque based throttle/Engine Control and my tuning/logging strategies. Makes understanding a lot easier. I even referenced it in Andy's thread Even after peeling back the injector tables and charting the timing/fuel pressure sceanrio's, I have a basic understanding on how the fuel is added, how much and when. While theory as of yet, I am hoping to put to use this winter. Obviously the more experience you have, the better you get at it. Transferring from book knowledge to the PCM is the most difficult but rewarding journies.

    Thanks again for sharing with us.

    Ed M
    Last edited by mowton; 12-11-2013 at 04:59 AM.
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