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Thread: Engine swap with a BTR LS1 Stage 2 cam

  1. 04-20-2019 #1
    ZQ8 Blazer
    ZQ8 Blazer is offline
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    Question Engine swap with a BTR LS1 Stage 2 cam

    hi, I am currently putting a 5.3 in my 2000 Blazer and it is stock other than having a BTR LS1 Stage 2 cam (227/234 .614"/.576" 113+2). I was wondering if anyone knows if the engine will run on the stock truck tune with this cam or if there's one in the repository with a similar setup. I no longer have hptuners, but my friend does and he will be uploading a tune to the pcm for me. I'd like to be able to drive the truck a little or at least let it idle at the house to make sure all the kinks are worked out before taking it to the dyno and having it properly tuned.
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  2. 04-20-2019 #2
    kevin87turbot
    kevin87turbot is offline
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    It will run, but not very well. It's not going to idle very well, and probably won't idle at all once it's up to temp. You can add some minimum airflow by adjusting the Throttle Body screw, but it's sill going to be very rich at an idle. It really needs to be tuned.
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