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04-29-2016, 05:32 PM | #1 |
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E89 Z4 DCT Differential Upgrade Recommendations (gearing and LSD)
I broke the input shaft on my differential after wheel hop at the drag strip. I need to replace the diff and wanted to get recommendations on gear ratio change and LSD experience. I am going to install RR600s so I am expecting 600rwhp and am not sure if it is needed or worth it to upgrade. I can get a used diff for $675 but it looks like upgraded diffs are $3000 or more.
Appreciate feedback and others' experience.
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2009 Z4 DCT - Hexon RR600, MMP Inlets/Outlets, Wagner EVO 2 Comp FMIC, Fuel-It TBI, Fuel-It Stage 2 LPFP, ER CP, Forge DVs, N20 TMAP, BQ Tune 93/E65, BMS DCI, AR Catless DPs, BMS OCC, RB PVC
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04-29-2016, 09:34 PM | #2 |
First Lieutenant
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im running 606whp.
I'll be purchasing the mfactory LSD with 3.08 final drive. i dont have it yet, so i cant comment personally. but i have a friend here in town that runs the same LSD on his 750whp BMW, and he loves it. his car trapped 169mph at no fly zone.
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2011 BMW Z4 35i | FBO | VTT Stg 2+ (EK, 20T clipped)| Motiv PI| Motiv Tuned | Fuel-IT Stg 2 + inline fuel pump | Spec Stg 3+ clutch | MFactory flywheel | 606whp 575Lbs |
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06-01-2016, 12:02 AM | #4 |
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i have not. I ended up doing more cooling (FMIC/radiator) and installing coilovers instead. i will eventually though. maybe in the fall.
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2011 BMW Z4 35i | FBO | VTT Stg 2+ (EK, 20T clipped)| Motiv PI| Motiv Tuned | Fuel-IT Stg 2 + inline fuel pump | Spec Stg 3+ clutch | MFactory flywheel | 606whp 575Lbs |
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07-25-2016, 09:43 PM | #6 |
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No LSD. In fact a welded diff - a gift from BMW which means you'll spend $2k+ to solve that problem as it is expense to include the machining necessary to remove the welds.
Filippo
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2011 35i MT Atacama ... lots of bits. Full Öhlins TTX custom suspension. Build thread.
Build sheet. Currently finishing suspension, fuel, ignition system with Barry Battle @ 3DMMotorsport. |
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03-29-2017, 06:06 PM | #7 |
Lord Commander
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Drives: 11' Z4 35i DCT
Join Date: Jan 2016
Location: Central Jersey
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Slightly off topic. I have the chance to get a fully built 335 6mt dif for very cheap. Will this work with my dct?
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2011 Z4 35i DCT - RIP: 2008 335xi
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