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Thread: stock bottom end 5.3 safe max shift rpm's

  1. 03-11-2010 11:14 PM #11
    Duct_tape123
    Duct_tape123 is offline The Man
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    Got any sound clips of that cam? I'm interested in the same one and would like to hear what it sounds like. Hows the bottom end power with that cam?
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  2. 03-14-2010 01:26 PM #12
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    Beatdown Z
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    Quote Originally Posted by 2007L33 View Post
    Well my Yukon denali has a Lunati cam and when I have the snowmobile trailer on the back with 4 sleds. On the interstate with the cruise set at 70mph it will sit at 5700/5800 and not shift till I crest over the hill I am on and there are some long and steep hills when I travel thru the PA mountains. That engine actually spun a rods bearing with 42,000 on it ? I put the cam in at 13k ?
    Damn! I don't think I could ever do that to any of my vehicles. I get nervous when my brother cruises at 3500 rpm in his 5.3 Chevelle. WTF!
    Big slow mud truck with a TUNE!!!!!!
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  3. 03-14-2010 01:30 PM #13
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    2007L33
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    Quote Originally Posted by Duct_tape123 View Post
    Got any sound clips of that cam? I'm interested in the same one and would like to hear what it sounds like. Hows the bottom end power with that cam?
    No clips yet, I ordered my nelson tune last week still waiting to hear from them that its done ? I will post some clips whens its done.
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  4. 03-14-2010 01:35 PM #14
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    Beatdown Z
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    I would spin the 5.3 in my brother's Chevelle to 7000 rpm, if the tune would allow it.
    Last edited by Beatdown Z; 03-15-2010 at 12:07 AM.
    Big slow mud truck with a TUNE!!!!!!
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  5. 03-14-2010 01:35 PM #15
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    I shift my stock 5.3 at 6100rpm. Im pretty sure there is more rpm left in it also.
    T-RAV
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  6. 03-15-2010 11:52 PM #16
    gm327
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    6800 . . until it went boooom
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