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02-04-2017, 07:20 PM
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#13
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Brigadier General 
Drives: 130i coupé ;)
Join Date: Nov 2011
Location: Bimmerpost
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I have swapped my diff for 3.73 auto with out LSD - its derivable and improved my city fuel econ. Hwy Fuel is okay too if I keep it at 120km/h.
That said I do think 3.64 is the better ratio for balance of hwy and street.
My motivation for 3.73 was ease of finding a good deal, and easy fit because (I may be wrong, but) the 3.64 is only possible with custom LSD equipped pumpkins OR with a drive shaft mod to mate up to a junker 3.64
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff
"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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