BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      08-25-2015, 10:15 PM   #1
RedRanger
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Best Pumpkin LSD for the 128i

Anyone changed out their pumpkin? What ratio is the best for manual? Automatic? What car model does it come out of? Thanks!
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      08-26-2015, 01:45 PM   #2
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2008 BMW 128i  [10.00]
Quote:
Originally Posted by Jester105 View Post
Anyone changed out their pumpkin? What ratio is the best for manual? Automatic? What car model does it come out of? Thanks!
3.73 from the Auto is the easiest choice

the others need the input Flange changed or your driveshaft modded & balanced to get 3.38, 3.46 and maybe 3.91. Other pumpkins would need half-shafts at the very least changed.
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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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      08-26-2015, 04:43 PM   #3
RedRanger
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Guessing I should just leave mine alone then since I have an auto huh?
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2008 Sedona Red 128i
Black Chrome powder coated VMR 710's 18's, Carbon fiber engine bay cover and intake, Carbon fiber interior trim,
Demon eyebrows, euro intake, performance brace, black grills, Magnaflow exhaust, Stage 3IM, AA Tune
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      08-26-2015, 07:36 PM   #4
dailowill
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I'd stick with the 3.73

I replaced my diff unit only and kept my stock final drive ratio (MT/3.23). I figured that with a 3.73 at the speeds I cruise at, the RPMs would be too high for my liking.
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      08-26-2015, 08:37 PM   #5
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I don't remember if there is a small pumpkin version of 3.91 without going to someone to get custom unit with LSD.
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      08-27-2015, 11:58 AM   #6
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Would a LSD unit for an e92 M3 work in an auto e82?
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2008 Sedona Red 128i
Black Chrome powder coated VMR 710's 18's, Carbon fiber engine bay cover and intake, Carbon fiber interior trim,
Demon eyebrows, euro intake, performance brace, black grills, Magnaflow exhaust, Stage 3IM, AA Tune
Appreciate 0
      08-27-2015, 12:28 PM   #7
andrey_gta
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2008 BMW 128i  [10.00]
Quote:
Originally Posted by Jester105 View Post
Would a LSD unit for an e92 M3 work in an auto e82?
lots of work. ( half shaft, driveshaft mod, maybe bearings with knucles etc)

just look for a e92 m3 take off complete diff and subframe with arms and brakes
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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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      08-27-2015, 12:32 PM   #8
RedRanger
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More work than I want to get into right now. Thanks for the info!
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2008 Sedona Red 128i
Black Chrome powder coated VMR 710's 18's, Carbon fiber engine bay cover and intake, Carbon fiber interior trim,
Demon eyebrows, euro intake, performance brace, black grills, Magnaflow exhaust, Stage 3IM, AA Tune
Appreciate 0
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