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A4 with 4.11s

This is a discussion on A4 with 4.11s within the Drivetrain forums, part of the LSx Technical Help Section category; Any of you guys out there running a 4.11 gear ratio with a 4L60E? Im looking to upgrade my rear ...

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    Senior Member cpop98ws6's Avatar
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    A4 with 4.11s

    Any of you guys out there running a 4.11 gear ratio with a 4L60E?

    Im looking to upgrade my rear and im just not sure what ratio to go with. My first though was 4.11s, but im not sure if it will be shifting into 4th gear at the drag strip or not. Any help would be great, thanks!

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    Junior Member arock24's Avatar
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    I like the 3.73 ratio for DD/Performance. Have you already done a stall?

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    Senior Member cpop98ws6's Avatar
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    Yes, I have a stall. Yank 3600 with mods in Sig. I only put around 2000 miles on it a year and it sees the track 1 or 2 times a month.

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    Member 666ws6's Avatar
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    standard gear upgrade for an Auto is 3.73. If you want a little more low end pull, you can do 3.90's which are a little rare. I put 3.90's in mine, I love them and it's still fine for a daily driver. I would say at the track though... I now need slicks to really take advantage of them. My Nitto drag radials tend to have little grip with the gears. But I'm not ready to break the rear yet with slicks.

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    Senior Member cpop98ws6's Avatar
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    I have be thinking about the 3.90s as an option too. I have weld prostars with mickey Thompsons for the track and they are great for the track but the 10 bolt couldn't hold up to them. Lol

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    Member 666ws6's Avatar
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    That's my fear too. With my luck, I'd break the axle on my first run with slicks. I'll wait till I have the $3k for an axle before I try them.

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    666 -- what's your rpm at the top of the track with the 3.90's?

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    Senior Member cpop98ws6's Avatar
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    Good question Jeff, that's really what I want to know.

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    Member WS6SP33D's Avatar
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    411's would be way much for a 60 with a 3600 stall imo. I have done a few 3.90 and even 3.73 with that stall. i can honestly say i would not go as high as a 4.11 i would prob stick with a 3.73 jmo.

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    Member 666ws6's Avatar
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    Quote Originally Posted by pajeff02 View Post
    666 -- what's your rpm at the top of the track with the 3.90's?
    Honesty, I've never watched my rpm when at the track. There are some calculators out there which can predict your rpm with different gears though. I can say when cruising at 80mph I'm around 2600 rpm.

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    Senior Member cpop98ws6's Avatar
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    It says on the calculater that my rpm would be around 5700 with 4.11s, that's where paJeff02's is when he crosses the traps and he has 3.73s. So I don't think those calculators are to accurate.
    Callies 383, Trick Flow 225, Rapid Motorsports Dominatior 2 X cam, ls6 ported oil pump,42lb injectors, FAST 92/92 , ASP underdrive pully, eletric water pump, Pacesetter LT's, Pacesetter ORY, Magnaflow catback, e-cutout, Yank SS 3600, Performabuilt stage 2 4l60e, Strange S60 ,4.10s, Detroit Truetrac, (UMI) - Adj. LCA, Adj. tunnel mount torque arm, Adj. panhard bar, Drag bar, subframe conectors, shock tower brace. 465rwhp-438rwtq 11.09@119.90.

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    O U 8 1 2 Spaz's Avatar
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    4.11's would be doable depending on the cam and stall... if you're stock i'd say 3.73 because they've been tested and true... the axles aren't the part i'd worry about breaking... its' the actual gears that are the weakest part... if you worry about the stockers breaking then you'll worry more about 3.73s or 4.11's breaking...

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    Senior Member cpop98ws6's Avatar
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    Well the gears will be going in a strange 12 bolt when I order it at the end of the month.

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