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Thread: new engine baseline tune review

  1. #1
    Potential Tuner
    Join Date
    Jul 2025
    Posts
    1

    new engine baseline tune review

    I recently installed a new 5.3 with a cam with these specs: 214/222 .550/.550 108 LSA 106 ICL
    I am new to tuning and was wondering if someone would be kind enough to check it out. I also have the data log from the first drive. Nothing has been done much besides add some air and spark.
    My main concern is can I break in the engine with this tune? Or should I look for someone to tune me a better baseline to break in the engine with? Thanks!
    Attached Files Attached Files

  2. #2
    Senior Tuner
    Join Date
    Nov 2006
    Location
    North Carolina
    Posts
    4,925
    Log looks fine to me.

    I'll be more gentile with a new engine but the only way to really hurt the engine is running it very rich where it is smoking or knocking really hard. Being a new engine I'd want the fueling a little more spot on than just any other engine. Your fueling is quite close enough looking at the log.

    It's hard to hurt a NA engine with a tune. Things have to be obviously bad and someone would have to ignore that for a while for any damage to be done.
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