Differential question

Luca · 05-31-2015, 06:41 PM

I'm looking at swapping my pumpkin for a 3.46 ratio to make it easier to bolt an lsd in. Found a few on ebay just not sure what's gunna fit on my car. Help would be greatly appreciated.

2009 135i MT

lowbudgethero · 06-01-2015, 10:42 AM

you would need a large pumpkin auto differential which would be 06-early 07

I'll also warn you that 3.46 will be too short if you plan on going fbo + meth/e85, not sure what your plans are.

you'll also want to have the car tuned to move the power band higher to match the short ratios

http://www.1addicts.com/forums/showthread.php?t=657738

dtla1 · 06-01-2015, 02:14 PM

I read the thread title as Differential Equation and the Engineer in me had to click in.

05-31-2015, 06:41 PM	#1
Luca Private 2 Rep 84 Posts Drives: 2009 135i Join Date: Nov 2013 Location: Vaughan, Canada iTrader: (0)	Differential question I'm looking at swapping my pumpkin for a 3.46 ratio to make it easier to bolt an lsd in. Found a few on ebay just not sure what's gunna fit on my car. Help would be greatly appreciated. 2009 135i MT
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06-01-2015, 10:42 AM	#2
lowbudgethero Captain 125 Rep 750 Posts Drives: '98 Z3M (gone), '09 135i Join Date: Feb 2013 Location: 908 iTrader: (0) Garage List 2009 BMW 135i [8.50]	you would need a large pumpkin auto differential which would be 06-early 07 I'll also warn you that 3.46 will be too short if you plan on going fbo + meth/e85, not sure what your plans are. you'll also want to have the car tuned to move the power band higher to match the short ratios http://www.1addicts.com/forums/showthread.php?t=657738
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06-01-2015, 02:14 PM	#3
dtla1 Colonel 828 Rep 2,232 Posts Drives: 2011 135i, Space Grey Join Date: Apr 2014 Location: Silicon Valley iTrader: (2)	I read the thread title as Differential Equation and the Engineer in me had to click in.
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