4t60e stock converter stall speed
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HT4100 4.1, 4.5, 4.9 Discussion, 4t60e stock converter stall speed in Cadillac Engine Technical Discussion; Im looking into getting a converter with 300 to 500 rpm higher stall speed and dont remember what the stock ...
  1. #1
    CetriKomaDevet is offline Cadillac Owners Member
    Join Date
    Jun 2012
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    7

    4t60e stock converter stall speed

    Im looking into getting a converter with 300 to 500 rpm higher stall speed and dont remember what the stock speed is.

    And out of what gm do i get the chain drive sprockets to make my stock 2.97 fdr higher for closer gearing.

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  3. #2
    Edahall's Avatar
    Edahall is offline Cadillac Owners Enthusiast
    Automobile(s): 93 & 88 Allante, 88 Eldorado
    Join Date
    Jan 2004
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    779

    Re: 4t60e stock converter stall speed

    Quote Originally Posted by CetriKomaDevet View Post
    Im looking into getting a converter with 300 to 500 rpm higher stall speed and dont remember what the stock speed is.

    And out of what gm do i get the chain drive sprockets to make my stock 2.97 fdr higher for closer gearing.
    If you're after more performance, a higher stall speed converter is not going to do what you want. The 4.5/4.9 is a low hp / high torque engine that doesn't need the revs (compared to other engines) to develop power.

    The Cadillac Allante from 1989-1992 had a 3.21:1 final-drive ratio but their engines had some differences that gave it a 1000 rpm higher max rpm's to take advantage of it. Yes you might gain a little with a shorter ratio but it won't be very much.

    About the best you can do for these engines to make them faster are either NOx or forced induction.

  4. #3
    CetriKomaDevet is offline Cadillac Owners Member
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    Jun 2012
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    I guess ill leave it stock then. I was planning to leave the engine alone, keep it stock and reliable. The primary reason for the trans mods is that i have big heavy wheels on the car, i want something to help it move off the line a little easier for around town driving.

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