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Will 4.11 help my 1/4 ET, put me in the 10's?

This is a discussion on Will 4.11 help my 1/4 ET, put me in the 10's? within the Drivetrain forums, part of the LSx Technical Help Section category; Curent setup is in sig. My curent gear is 3.70. Im making about 480rwhp. I went to the track this ...

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    Member william SS's Avatar
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    Will 4.11 help my 1/4 ET, put me in the 10's?

    Curent setup is in sig. My curent gear is 3.70. Im making about 480rwhp. I went to the track this past friday and made a motor pass this was the result.

    60'....1.60
    330....4.59
    1/8....7.11
    mph....97.38
    1000....9.30
    1/4....11.15
    mph....121.89

    If I change to the 4.11's how much would this help my 60' & 1/4 time and would my trap speed go up or down? I'm looking for possibly a 10 sec ET if I change to this gear?
    Last edited by william SS; 09-21-2009 at 04:43 AM.

    2001 Camaro SS 10.84@123mph NA 1.48 60ft
    487rwhp / 439rwtq NA

    TSP LQ9 6.0L 402cid, TFS 235's, comp custom grind cam,
    ARH 1 7/8, Fast 90/92, Performabuilt level 2 4l60E,
    FTI 3800 stall, 4.11 gears, full Suspension,
    28" MT ET street radials, race weight 3800lbs with driver.

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    Senior Member JaycenK's Avatar
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    Your an auto. I think you will be out of gear just before the time you hit the 1/4 mile mark. What kind of rpm's does your motor turn? and were dose it make it's power. You would have to be shifting into OD and at those power levels the 2/4 band,or the 3/4 clutch could start to slip a little and eventually give up. I think I read that gears on an auto from a 2.73 to a 3.73 were worth about 2 tenths. cant remember were I read that but I do remember that from an F-body article.
    Last edited by JaycenK; 09-21-2009 at 10:25 AM.

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by JaycenK View Post
    Your an auto. I think you will be out of gear just before the time you hit the 1/4 mile mark. What kind of rpm's does your motor turn? and were dose it make it's power. You would have to be shifting into OD and at those power levels the 2/4 band,or the 3/4 clutch could start to slip a little and eventually give up. I think I read that gears on an auto from a 2.73 to a 3.73 were worth about 2 tenths. cant remember were I read that but I do remember that from an F-body article.
    his trans should be good for the extra beating..but i believe you are right.
    Last edited by shady milkman; 09-21-2009 at 11:44 AM.

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    King 0f n00bz shady milkman's Avatar
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    i am with jaycenk..i think you will over gear your self and end up hurting your time...look elsewhere for that .15

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    Senior Member bigrondownhiller's Avatar
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    Shed some weight. They say every hundred pounds or so is worth a tenth of a second. Remove stuff you don't need when you hit the track.

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    🤔 11s. blackbirdbrain89's Avatar
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    if u going to run 411s ur going to need 28 inch tall tires.. that will put u at 125 or so @7000 rpm... u might make the 2 tenths with ur 60 ft by changing ur gears and tire combo ... or just look in to a bigger stall and better tires hit a 1.4xx with the wheels up

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by blackbirdbrain89 View Post
    if u going to run 411s ur going to need 28 inch tall tires.. that will put u at 125 or so @7000 rpm... u might make the 2 tenths with ur 60 ft by changing ur gears and tire combo ... or just look in to a bigger stall and better tires hit a 1.4xx with the wheels up
    he has mt ets..so he should be good there..wheel stands are for pinks all out...just launching hard is where its at

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    Member william SS's Avatar
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    New best.

    Well turns out I didnt have 3.70 gears I had 3.89's but I went ahead and switched to the 4.11's. So far Ive droped .15 off my time and get this from 3.89's to 4.11's I picked up 3.9 almost 4 mph. I was at 121.89 and after gears went to 125.79. And ended up runing a 10.994 with a 1.56 60ft.

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    Moderator 35th-ANV-SS's Avatar
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    Quote Originally Posted by blackbirdbrain89 View Post
    if u going to run 411s ur going to need 28 inch tall tires.. that will put u at 125 or so @7000 rpm... u might make the 2 tenths with ur 60 ft by changing ur gears and tire combo ... or just look in to a bigger stall and better tires hit a 1.4xx with the wheels up
    Quote Originally Posted by shady milkman View Post
    he has mt ets..so he should be good there..wheel stands are for pinks all out...just launching hard is where its at
    As a wise man once said on here, you usually go faster with the wheels on the ground

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by william SS View Post
    Well turns out I didnt have 3.70 gears I had 3.89's but I went ahead and switched to the 4.11's. So far Ive droped .15 off my time and get this from 3.89's to 4.11's I picked up 3.9 almost 4 mph. I was at 121.89 and after gears went to 125.79. And ended up runing a 10.994 with a 1.56 60ft.
    congratulations

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    Veteran Hi-Po's Avatar
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    Good to hear, what are you crossing the line at?

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    Member william SS's Avatar
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    Quote Originally Posted by Hi-Po View Post
    Good to hear, what are you crossing the line at?
    Like between 66 and 67. That is if my stock tack is reading correctly which I believe it is.

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    Quote Originally Posted by william SS View Post
    Like between 66 and 67. That is if my stock tack is reading correctly which I believe it is.
    I doubt it is. Mine is off at those RPM's looking at datalogs. Either way, Thats a great gain with just slight different gear.

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