Is anyone planning to get shorter gearing?

ihatepostmodernism · 04-25-2008, 10:44 AM

I remember a while back advevo said that he was going to swap out his final drive gear. Advevo, if you are reading this please let us know if you have done so and how it has gone. This is something I am willing to consider. Has anyone else thought about this?

WhiteOne · 04-25-2008, 02:20 PM

Rearend from an automatic has steeper gearing I believe. Lower gears + LSD = FUN

AwesomeBMW · 04-25-2008, 03:01 PM

I believe Adeveo has done this already. the auto rear end has 3.06 ratio as opposed to 3.46 in the manual

http://www.1addicts.com/forums/showthread.php?t=4348

post number 14

Tom K. · 04-25-2008, 03:15 PM

Quote:

Originally Posted by AwesomeBMW

I believe Adeveo has done this already. the auto rear end has 3.06 ratio as opposed to 3.46 in the manual

Looks like that's reversed. The steptronic has the shorter 3.46 FD ratio and the MT has 3.08.

http://www.bmwusa.com/Standard/Conte...fications.aspx

Tom

AwesomeBMW · 04-25-2008, 03:20 PM

^^ whoops. I saw two numbers and wrote them down...which i didn't even do correctly (6 instead of a 8)

ihatepostmodernism · 04-25-2008, 03:44 PM

This mod will be very tempting once I get some miles on my car.

mistermojorizin · 04-25-2008, 03:58 PM

this would be a very tempting mod, this probably the only thing the car is missing, but it would likely be expensive and would void the drivetrain warranty.

crzy4135i · 04-25-2008, 04:03 PM

Quote:

Originally Posted by mistermojorizin

this would be a very tempting mod, this probably the only thing the car is missing, but it would likely be expensive and would void the drivetrain warranty.

Do they look the same? How would the dealer know?

mistermojorizin · 04-25-2008, 04:08 PM

by driving it. signs of tampering. if it was an expensive problem, the kind where you need to get it done under warranty, i'm sure they'd scour the car with a magnifying glass to find a way to screw you.

walsh416 · 04-25-2008, 04:26 PM

they do, trust me. 6k lost. Not good.

ihatepostmodernism · 04-25-2008, 06:22 PM

Can someone post a comparison of the M3s gearing and the 135s?

WhiteOne · 04-25-2008, 09:31 PM

I do not believe swapping 3.08 gears for 3.46 gears would have any affect on "ones" warranty. Adding a LSD should not affect it either. JMHO

SlickShift · 04-26-2008, 06:24 PM

Adeveo said the 3.46 from the auto 135i didn't match perfectly. I wonder if the 3.23 diff from the 128i manual will fit perfectly?

Tom K. · 04-26-2008, 11:03 PM

Quote:

Originally Posted by SlickShift

Adeveo said the 3.46 from the auto 135i didn't match perfectly. I wonder if the 3.23 diff from the 128i manual will fit perfectly?

Seems like a lot of $$$ and trouble for only a 5% gearing difference.
Tom

04-25-2008, 10:44 AM	#1
ihatepostmodernism Private 9 Rep 96 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Is anyone planning to get shorter gearing? I remember a while back advevo said that he was going to swap out his final drive gear. Advevo, if you are reading this please let us know if you have done so and how it has gone. This is something I am willing to consider. Has anyone else thought about this?
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04-25-2008, 02:20 PM	#2
WhiteOne Major 28 Rep 1,000 Posts Drives: 2008 AW 135i Join Date: Dec 2007 Location: Alabama iTrader: (0)	Rearend from an automatic has steeper gearing I believe. Lower gears + LSD = FUN
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04-25-2008, 03:01 PM	#3
AwesomeBMW Freude am Fahren 17 Rep 388 Posts Drives: Join Date: Oct 2007 iTrader: (0)	I believe Adeveo has done this already. the auto rear end has 3.06 ratio as opposed to 3.46 in the manual http://www.1addicts.com/forums/showthread.php?t=4348 post number 14 __________________ "Oversteer is best because you don't see the tree that kills you" -- Richard Hammond
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04-25-2008, 03:20 PM	#5
AwesomeBMW Freude am Fahren 17 Rep 388 Posts Drives: Join Date: Oct 2007 iTrader: (0)	^^ whoops. I saw two numbers and wrote them down...which i didn't even do correctly (6 instead of a 8) __________________ "Oversteer is best because you don't see the tree that kills you" -- Richard Hammond
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04-25-2008, 03:44 PM	#6
ihatepostmodernism Private 9 Rep 96 Posts Drives: Join Date: Oct 2007 iTrader: (0)	This mod will be very tempting once I get some miles on my car.
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04-25-2008, 03:58 PM	#7
mistermojorizin Lieutenant Colonel 40 Rep 1,657 Posts Drives: 135i Join Date: Apr 2008 Location: Los Angeles iTrader: (0)	this would be a very tempting mod, this probably the only thing the car is missing, but it would likely be expensive and would void the drivetrain warranty. __________________ "KOPEYKA" /// Titanium Silver / Black Leather / Gray Poplar / Sport Package / Premium Package / 6MT / Feb 08 Production
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04-25-2008, 04:08 PM	#9
mistermojorizin Lieutenant Colonel 40 Rep 1,657 Posts Drives: 135i Join Date: Apr 2008 Location: Los Angeles iTrader: (0)	by driving it. signs of tampering. if it was an expensive problem, the kind where you need to get it done under warranty, i'm sure they'd scour the car with a magnifying glass to find a way to screw you. __________________ "KOPEYKA" /// Titanium Silver / Black Leather / Gray Poplar / Sport Package / Premium Package / 6MT / Feb 08 Production
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04-25-2008, 04:26 PM	#10
walsh416 Private 6 Rep 95 Posts Drives: Join Date: Mar 2008 iTrader: (0)	they do, trust me. 6k lost. Not good.
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04-25-2008, 06:22 PM	#11
ihatepostmodernism Private 9 Rep 96 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Can someone post a comparison of the M3s gearing and the 135s?
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04-25-2008, 09:31 PM	#12
WhiteOne Major 28 Rep 1,000 Posts Drives: 2008 AW 135i Join Date: Dec 2007 Location: Alabama iTrader: (0)	I do not believe swapping 3.08 gears for 3.46 gears would have any affect on "ones" warranty. Adding a LSD should not affect it either. JMHO
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04-26-2008, 06:24 PM	#13
SlickShift Lieutenant Colonel 323 Rep 1,804 Posts Drives: '11 BMW E90 M3 ZCP, '21 X5 ZMP Join Date: May 2007 Location: Atlanta iTrader: (7)	Adeveo said the 3.46 from the auto 135i didn't match perfectly. I wonder if the 3.23 diff from the 128i manual will fit perfectly? __________________ -Nick 2018 BMW 440i - M Sport, Exec Glacier Silver Metallic/Coral Red Dakota Retired: '00 323i, '06 325Ci, '09 135i, '06 Z4M Roadster, '93 525i, '76 2002, '14 X1, '14 M235i, '16 X4, '16 435i
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