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Thread: Anyone have an ls3 in a c5 start up tune

  1. 04-24-2020 #1
    mddrip
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    Anyone have an ls3 in a c5 start up tune

    I just dropped a cammed LS3 in my C5. Does anyone have a tune I can put on it to get it started up???
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  2. 04-24-2020 #2
    5FDP
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    Did you swap reluctors or running a converter box dealio?

    Change the cylinder volume, add some base running airflow and maybe a little bit of fuel to the MAF/VE table. Crank it up and see what happens. Everything is going to be specific to that engine anyway. The stock tune with some changes should let it run.

    Also if you changed injectors and MAP sensor you must put that data in there.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.
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  3. 05-07-2020 #3
    mddrip
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    Quote Originally Posted by 5FDP View Post
    Did you swap reluctors or running a converter box dealio?

    Change the cylinder volume, add some base running airflow and maybe a little bit of fuel to the MAF/VE table. Crank it up and see what happens. Everything is going to be specific to that engine anyway. The stock tune with some changes should let it run.

    Also if you changed injectors and MAP sensor you must put that data in there.
    Thanks for the info...running a converter box
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