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02-07-2014, 04:15 AM | #1 | ||||||||
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MFactory Helical LSD's - Lifetime Warranty, 30-Day Money Back Guarantee!
Helical LSD
Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution of power to the wheels, the MFactory Helical LSD puts the power-to-the-ground and maximises your vehicle's traction. A must for any race car, be it Street, Strip or Track! Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel Perfect fitment & finish ensures hassle-free installation & maintenance, each and every time Designed using leading-edge Solidworks 3D CAD & Cosmos FEA software Advanced Gear Geometry minimizes parasitic drivetrain losses. Race transmissions built with MFactory components transfer, on average, 1-2% more power to the ground over our competitors! Stress Tested on loaded dynos Ensures our differentials are strong enough to handle the shock loads encountered during racing, yet also durable enough to handle the variable loads encountered during day-to-day driving. 2nd Generation Design The MFactory v2 Helical LSD is lighter, stronger and more efficient than any other Helical LSD on the market today! Covered by the MFactory Feel The Torque™ 30-Day Money Back Guarantee! An Industry First! If you do not feel the difference after installing your new Limited Slip Differential, you may return the product to us for a full refund (excluding shipping costs) within 30 days of the purchase date Covered by the MFactory Lifetime, Globally Transferable Warranty Whether used on the Street, Strip or Track, all MFactory Helical LSD's come with a Lifetime, No-Hassle, Globally Transferable Warranty No-Load/One-Wheel Syndrome A common misconception is that a Torsen-Style Differential is useless under a no-load situation (e.g One wheel in the air). This myth has been further perpetuated by our competitors of whom have limited understanding of how a Torsen-Style LSD functions. This no-load situation does not apply to 90% of users. For the other 10%, there is a simple solution to the problem that our competitors will not tell you; simply tap your brake pedal. Manufacturing Process - SAE9310 Bar Stock imported from Japan to ensure the purest steel grades - All MFactory components are Forged. We do not use inferior Cast or Billet processes. Forged components are upto 30% stronger & tougher than the equivalent "Billet" component. Click here for further details - Advanced material processing, heat treatment & finishing techniques offer superior strength, durability and quality - Primary Heat Treatment: After the forged parts come off the press, they are Normalized and Annealed to relieve residual stresses and make them machine workable - Machining: After the forged blanks are completed, we use Industry-leading Multi-Axis CNC and CAM equipment to machine the parts - Secondary Heat Treatment: State-of-the-art Case Hardening procedure achieved via computer-controlled Gas Carburization and Quenching - Double-Tempering: A superior heat treatment technique used to decrease the brittleness and increase the toughness of our parts - Surface Grinding: Through the use of our state-of-the-art diamond grinding machines, we ensure all parts are smooth, precise and free of burrs - Super Sub-Zero Processing: An advanced treatment technique whereby the parts are cryogenically hardened at -300°F, realigning the steels crystalline structure for maximum strength, then heat tempered again for a 3rd time to ensure maximum toughness (resistance to fracture) - Micro-Peening: Our final treatment stage, the parts are subject to a high speed shot blast with our proprietary micro media, creating a super smooth surface Brand Comparison Fitments/Price Helical LSD E8X 120d (MT) for Final Ratio <= 3.07 Helical LSD E8X 128i (MT)/135i (AT) for Final Ratio >= 3.15 Helical LSD E8X 135i (MT) All fitments (exc 135i MT) $999.95 inc FREE Shipping within North America & Europe 135i MT $1779.95 inc FREE Shipping within North America & Europe. Includes $500 core exchange fee, refundable after you return your original Diff + Ring & Pinion Rebuild Service: Ship your pumpkin to us, or we can use a pumpkin that we have in stock, and we'll handle the rest! - Prior to assembly, all parts are cleaned, inspected, and polished in a deburring machine with ceramic media - Preload, gear clearance and torque will all be inspected and adjusted for superior performance - Housings are media blasted to give a 'better than new' look - Simply add $500 onto the cost of the LSD for this rebuild service - If you wish us to ship you a pre-built pumpkin first, there is an additional $500 core charge. This is refundable after we receive your old pumpkin back Some images of a recent rebuild: Before: Cleaned in our Ceramic Tumbler: LSD Installed: Finished Pumpkin: For further information, please CLICK HERE to Contact Us, or send us a PM About MFactory Established in 2004, MFactory Competition Products has since grown to become one of the Leading Global Manufacturers of high performance off-the-shelf aftermarket transmission components, with our large range of Forged Final Drive Gears, LSD's and Close Ratio Gears offering enthusiasts undeniably THE most cost-effective method of performance improvement, far surpassing that of conventional engine tuning. Being a specialist in this industry requires focused knowledge that can only be gained through years of first-hand testing and tuning experience. Challenging the old adage that 'there is no replacement for displacement', MFactory Competition Products have become a prominent figure in the highest levels of Motorsport, with class-leading recognition the world over in Circuit Racing, Drag Racing and Rally. Every product within the MFactory catalog is designed in-house in the USA and manufactured in-house to our own specifications at both our US R&D Facility and our multi-million dollar, state-of-the-art, ISO Regulated Taiwan factory, before being tested & developed in the real-world on state-of-the-art race vehicles from North America, Europe and Asia-Pacific. Our products are designed from the beginning to surpass the competition. Why choose MFactory? Here's why: Official OEM to Honda of America's Motorsports Divisions World's Largest Manufacturer of Forged Performance Transmission Components for Japanese and European Automobiles North America's Largest Manufacturer of Limited Slip Differentials for Japanese and European Automobiles North America's Largest Honda/Acura Performance Transmission Specialist The World's Only Performance Transmission Manufacturer to offer a 30 Day Money Back Guarantee! The World's Only Performance Transmission Manufacturer to offer a Discounted Trade-in for a Competitors Product; even if it's damaged! Want more Information? To view our complete company profile and manufacturing processes, please CLICK HERE to visit our website Some Customer Reviews Quote:
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Last edited by MFactory; 11-14-2014 at 12:56 PM.. |
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02-07-2014, 10:27 AM | #3 |
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Excellent to see an affordable option here.. wish I had an extra car right now, I'd send you guys my welded 2.56.. I need an LSD!
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02-07-2014, 01:24 PM | #4 |
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There is some confusion in the RWD market, where a lot of people think Diff = Final Drive, which isn't the case, so would like to clarify the terminology first.
Pumpkin: This is the whole differential unit, containing the differential and final drive Differential: This is the part that we make i.e the LSD Final Drive: This is the Ring Gear & Pinion, and is what makes up the "ratio". We will be making oem ratio final drives for those who have welded differentials. We are also thinking about making different ratio final drives for those who require better performance (whether acceleration or power rating). 4.75 anyone? When you purchase an LSD from us, this only replaces the oem differential unit; you would still re-use your oem final drive. For the non 135i/335i bolted diffs, if your current ratio is <= 3.07, you would choose the MT fitment. If your ratio is >= 3.15, you would choose the AT fitment. All diffs for bolted ring gears are in stock and ready to ship. If you do not wish to wait, you can order directly from our website. If you want to save 20% and wait for the group of 5, please let me know and I'll add you to the lists: 135i/335i Welded Diff Update We just managed to source an early model bolted large diff, so once it comes in, we can take our measurements and start producing the 3.08 and 3.46 final drives. ETA is around 2-3 months. Once available, you guys will have the option of purchasing the final drives standalone (to use with another LSD), or as part of an "upgrade" option when purchasing one of our LSD's. Our option will basically allow you to upgrade to an LSD at around 1/2 the cost of what is currently available. Alternatively, you could source the correct large diff oem final drives (a quick google search brings up a few options) and use that. This way, no need to wait the 2-3 months for our final drives, although you would be paying a few hundred dollars more for a used final drive rather than our new ones. 135i/335is DCT & 335d Models We are still looking for a donor to loan us their pumpkin or diff & pinion for around 2 weeks. This will allow us sufficient time to take our measurements, and we can then ship back to you to minimise downtime. ETA for the LSD & Final Drives will be 2-3 months. The donor will receive an LSD + Final Drive free of charge when ready. Last edited by MFactory; 03-05-2014 at 03:09 AM.. |
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02-07-2014, 02:39 PM | #5 | |
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Drives: 130i coupé ;)
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Therefore, to increase the ratio in my 128i & add LSD, one needs to swap to a higher ratio Pumpkin & install the new appropiate LSD differential
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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 Last edited by andrey_gta; 02-07-2014 at 02:47 PM.. |
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02-07-2014, 03:19 PM | #6 |
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You don't need to change the Pumpkin, only the differential unit and the final drive (ring gear & pinion).
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02-08-2014, 09:18 AM | #10 |
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Excellent, as that is exactly what we are looking for
If you were able to ship us your pumpkin, we would need around 2 weeks to take our measurements and we can then ship it back to you to minimise your downtime. We'll even fully refresh the unit for you before shipping it back. Our facility is in San Dimas, CA. ETA for the new LSD and Final Drives is around 2-3 months. Once ready, we will rebuild your pumpkin with the new internals free of charge. If this interests you, please feel free to PM me Thanks! |
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02-08-2014, 04:15 PM | #11 |
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MFactory,
Can you please add more information on your Clutch-Type LSD? For background info, this will be for my 2012 128i w/stock ratio. I'm going to be competing in SCCA STX which allows for any LSD conversion, as long as you maintain stock ratios. It will also see track and by my Daily Driver. Information requested: Static Lock Percentage (ex -40%) Ramp Angles (ex - 45/45) # of Clutches. To clarify as well, do you guys do installs for a OEM Pumpkin Unit...aka I would ship you my Pumpkin and you will install the chunk? Expected lead time on this as well? I still have to see if anyone is local around here that can do the install to avoid shipping, unless you can work that out through a group buy like this. Thanks in advance. |
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02-09-2014, 02:04 AM | #12 | |
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Lock - Can be adjusted between 60-100% by re-stacking the plates Ramp Angles - 35/45 on our 1way, 35/45 on our 1.5way and 35 on our 2.0way Plates - I would need to double confirm this with the engineer, but if I remember correctly, it should be 8pcs per side (total 16pcs) We are still working out the details regarding rebuilding the pumpkins etc. We need to sort out all the oem part numbers (bearings, seals) as well as order up some specialist tooling. The last thing we want to do, especially as we are just starting to expand into the Euro market, is to make some silly mistakes during the rebuilds. Thanks! |
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02-11-2014, 10:10 AM | #13 |
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Mfactory,
This may have been covered before but here goes: I have a welded diff, once you have your welded diff solution, would I be able to ship my entire pumpkin to you and have you install the LSD, shim etc. then have you ship the completed assembly to me so all I have to do is fill with oil and bolt up to my car? Thanks! |
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02-11-2014, 10:59 AM | #14 |
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so you need a welded diff? If i send you one to do R&D what do I get in return?
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02-12-2014, 09:54 AM | #15 | |
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We only need the DCT fitment now, as we have managed to source the MT fitment. The donor will get a free LSD/FD for their troubles. |
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02-12-2014, 11:57 AM | #16 | ||
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02-13-2014, 01:57 AM | #17 |
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We're still in the process of working out the logistics, but costs would probably be in the region of a few hundred dollars (FYI, our standard rate to recondition a full transmission is $400. For you guys, it's only a rear diff that needs rebuilt)
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02-13-2014, 02:38 AM | #18 | ||
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Im a couple of hours away from dropping close to $2.5K USD on a rebuilt large housing Quaife 3.46 LSD for my 2011 manual 6-speed 135i. I will have a spare large housing, welded diff, 3.08 final drive with 55,000Kms/35,000Miles to sell soon.
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2011 X3 35i with M pack + 2011 135i w/6SPMT | 255 square tire setup | Quaife 3.46 LSD | Diff lock down bracket | Bilstein B8+Swift SpecR springs+H&R FSB | CDV delete | BMS Oil Tstat bypass | ER FMIC & CP | N54Tuning DP | GC Street Camber Plates | M3 FCA +guide rods+RSFB's+Tranny mounts | Manzo toe arms | Cobb Stg2 agressive tune | Hawk DTC70 brake pads | RB SS brake pistons | Goodridge SS brake lines | Custom brake cooling ducts
Last edited by dcaron9999; 02-13-2014 at 02:46 AM.. |
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02-28-2014, 05:04 PM | #19 | |
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03-01-2014, 03:15 PM | #20 |
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Depending on time frame, VERY interested in procuring a solution for my 135i 6MT w/ welded diff, using the OEM ratios + LSD.
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