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Thread: C7 ZO6 LT4 VS CT5 Blackwing LT4 - Spark table

  1. #1

    C7 ZO6 LT4 VS CT5 Blackwing LT4 - Spark table

    Hey guys, I'm trying to figure out what are the differences with the LT4 found in the 2019 C7 zo6 and the 2023 CT5 Blackwing LT4.

    I was looking over the spark table for both vehicles and the 6.2 engine in the Blackwing is tuned more aggressively than the LT4 in a C7. Looking over the engine and supercharger specs online both engines appear to share the same engine displacement, engine compression, and supercharger size.

    Anyone care to enlighten the group?

    2023 Blackwing V spark table
    2023 Blackwing spark table.PNG



    2017 C7 Zo6 spark table
    2017 C7 Z06 spark table.PNG

  2. #2
    Senior Tuner
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    Did you account for any of the modifiers? Can you send me the file so I can look in more depth?
    [email protected]
    Owner/GM Calibrator
    Gen V Specialist - C7 Corvette, Gen6 Camaro & CTS-V3

  3. #3
    Tuner
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    Maybe the weight difference. Bout all I could think of.

  4. #4
    Senior Tuner
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    A Lighter car technically could handle more timing than a heavier car...all things being the same. But without seeing the other modifiers on the Blackwing, there is no telling how different they really are.
    [email protected]
    Owner/GM Calibrator
    Gen V Specialist - C7 Corvette, Gen6 Camaro & CTS-V3