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Where does 4.10 gears loose power

This is a discussion on Where does 4.10 gears loose power within the Drivetrain forums, part of the LSx Technical Help Section category; I know its a better low end gear ratio but at what MPH does it start to die down?...

  1. #1
    Rice Killa JwMonE99's Avatar
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    Where does 4.10 gears loose power

    I know its a better low end gear ratio but at what MPH does it start to die down?

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Senior Member Danger731's Avatar
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    Toward 90 + , I eat up 4.10 drivers on high speed rolls.

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    Rice Killa JwMonE99's Avatar
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    So where is a sweet spot for M6 and 4.10 gears from a roll.
    So from 90+ not much power huh? where does it top out at?

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    Member fxgs's Avatar
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    Dunno.............I have 4:11's...........buried the speedo and was still pulling strong

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    Quote Originally Posted by Danger731 View Post
    Toward 90 + , I eat up 4.10 drivers on high speed rolls.
    Besides climbing faster, I didn't notice any difference in the between my 3.42s and my 4.10s. What I mean is that it pulls the same no matter what speed I'm at.

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    the cake is a lie twozs's Avatar
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    they all start to loose power at red line on the tach. thats why it there. the motor will make power all the way up to red no matter what the gearing, it just may get there sooner

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    Slow'er'Ass Mr. Luos's Avatar
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    Just on the dyno over the taller gears.

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    Nitrous Tuner LS2Tuner's Avatar
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    Your ? is WAY too vague!! No one can truly answer your ?. . . . . . . . . . . .

    There are way too many variances. Tire height,tune,driver,etc.

    Figure out what the max rpm you want.

    Then the tire dia. you'll be running and do some figuring with a gear calculator.

    Here is a few links for you.

    http://www.grimmjeeper.com/gears.html

    http://www.csgnetwork.com/gearratcalc.html

    http://www.et-studios.com/motorsports/gears/gears.html





    MPH x Gear Ratio x 336
    RPM = ―――――――――――――
    Tire Size
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

  10. #10
    Senior Member karpetcm's Avatar
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    The car does not die out at all just because you have 4.10's meaning power wise or going at any certain MPH. Your car will pull harder at 90mph with 4.10's then it would with 3.42's because your engine spins up quicker and stays up in your peak power longer. The only thing you might give up a little on is top speed but i havent been able to nor gonna try and see what my top speed is either way. You will most likely see lower numbers on the dyno but it does not make your car any slower even with the lower numbers showing on the dyno your car is quicker and faster then before.
    1993 Z28 M6: K&N Intake, 52mm TB, TB Bypass, No Cats, Exhaust Cutout, Flowmaster Muffler, 3.90 Gears, 160 Thermo, Tune, BMR Springs, Bilstein Shocks, 3 Point SFC,s & MGW Shifter.

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    Rice Killa JwMonE99's Avatar
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    so the only thing I will loose is where I top out my car at?
    Anyone know at what MPH that is?

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    Kenne-Bell Killer Cayenne97's Avatar
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    Quote Originally Posted by karpetcm View Post
    The car does not die out at all just because you have 4.10's meaning power wise or going at any certain MPH. Your car will pull harder at 90mph with 4.10's then it would with 3.42's because your engine spins up quicker and stays up in your peak power longer. The only thing you might give up a little on is top speed but i havent been able to nor gonna try and see what my top speed is either way. You will most likely see lower numbers on the dyno but it does not make your car any slower even with the lower numbers showing on the dyno your car is quicker and faster then before.
    ^^ Perfectly Put!

    4.10 gears do not "lose" power. Top speed yes, but who cares about that.

  13. #13
    Senior Member karpetcm's Avatar
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    Thanks Cayenne97, i agree on the top speed i dont think ive been over 125MPH in years and even with 4.10's shouldnt be any issues still hitting 150MPH quicker then you would with 3.42's.

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    🤔 11s. blackbirdbrain89's Avatar
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    i have 3.89s in a nine inch and my buddy has stcok 10 bolt with 3.42s and pritty much same mods i pull on him till 110 or more then he slowly comes back after i hit 5th my 4th is toped at 119 and his is a lil highter so thats the diffrence is what gear u are in

  15. #15
    11's "CLUB" SS SLP2's Avatar
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    [QUOTE=LS2Tuner;1845152]Your ? is WAY too vague!! No one can truly answer your ?. . . . . . . . . . . .

    There are way too many variances. Tire height,tune,driver,etc.

    Figure out what the max rpm you want.

    Then the tire dia. you'll be running and do some figuring with a gear calculator.

    Here is a few links for you.

    http://www.grimmjeeper.com/gears.html

    http://www.csgnetwork.com/gearratcalc.html
    http://www.et-studios.com/motorsports/gears/gears.html



    ^^^ X2
    ENTER your max rpm and tire dia. and you will have your answer
    good luck , Johnny
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    http://www.jgruggles.com

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by blackbirdbrain89 View Post
    i have 3.89s in a nine inch and my buddy has stcok 10 bolt with 3.42s and pritty much same mods i pull on him till 110 or more then he slowly comes back after i hit 5th my 4th is toped at 119 and his is a lil highter so thats the diffrence is what gear u are in
    Allow me to recommend NOT using 5th or 6th gear at WOT....

    Quote Originally Posted by JwMonE99 View Post
    so the only thing I will loose is where I top out my car at?
    Anyone know at what MPH that is?
    www.f-body.org/gears

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    I've topped 160 (GPS) with my 4.10s...granted I was close redline in 5th longer than I would have liked to have been, but it was exhilarating either way.

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