N54 crank hub upgrade

N54 crank hub upgrade. Using a 6mm hex bit socket, tighten the bolts until snug This SCH failure has been seen on both modified and stock S55 engines. Oct 10, 2018 · Stock hub size which is a slip fit into crank is 26mm or 1. VAT) * Price is shown without VAT and shipping costs. Jan 19, 2018 · Pumps are driven by a timing chain which is driven by the crank. Putting those two points aside, the failure is catastrophic. It's been discussed at length on here, I don't think it's a big issue either - although clearly a design flaw. S55 Crank Hub Upgrade. Qty: Availability: Nov 30, 2018 · DO NOT replace the OEM Crank Hub with the TPG Tuning Crank Hub! 2. 2) S55 Crank Hub Fix. 9 hardware needed for install. 130F20: Exhaust Camshaft: Offset angle to cranksahft outside tolerance. They're pinning crank pulley to hub since the pulley slips with a big supercharger putting extra load on it. Oct 14, 2022 · Update, the way the N54 works is, the cam sprockets spin freely on the camshafts,you leave the bolts for them finger tight, once all the timing tools are in place, you start to put tension on the chain, you’ll see the cam sprockets rotate as the chain begins to get tension, (obviously the camshafts themselves are locked with the timing tool It is a common problem with BMW S55 and N55 engines that timing jumps. Really no point. I beleive that new solution provides incremental improvement over the previous n54 hub design. Take a look at the differences between the n55 and s55 that would effect this issue, damper, water pump, dual fuel pumps and rpm range (harmonics). - Kies Blue or Stealth Black Anodized Finishing. During testing, the VTT Crank Hub Upgrade was trialed on the VTT N54 Race Car spinning 8k RPM and making over 900whp. (Fig 9) 11. Feb 15, 2024 · That crank hub is the same crank hub on the s55, and I would still elect for a mechanically locked crank hub. This crank hub has also been tested up to 1000whp without issue. It is down to poor design by BMW (M2, M3, M4 engines). An aluminum open-deck block and aluminum head help keep weight down. to/2K3PIfY BMW OEM Installation of the MMR Performance One Piece Crank Hub and Capture Plate Kit fully addresses the well-known crank hub issues on BMW’s S55 & N55 engines in M2C, M3 and M4, and M135i/M235i models. com To date we have close to 200 kits shipped or in use in S55, N55, and N54 cars. 0TFSI Supercharger Reduction Pulley; AUDI 2016+ S4 S5 Q5 SQ5 A6 A7 Q7 3. Ever since BMW debuted their N54 engine at the 2006 Geneva Motor Show, the love for turbo straight-6's has exploded! Unfortunately, this newfound love was quickly followed by headaches after enthusiasts began to experience numerous issues (Turbo failure, Fuel injector issues, faulty sensors, serpentine belts getting sucked into the engine, crank bolt/hubs coming loose, etc. I put together a little parts list, and also a little legend of what motors share what parts. Burger Tuning Jb4, Wagner Intercooler and Downpipes, Active Autowerke Exhausts, VRSF products and Injen intakes Install of this Capture Plate is a simpler job to install and provides a great deal of added protection - making it a sensible 'first upgrade' for any N55 car being used on the road if you don't want to incur the full expense of the Single-Piece Crank Hub. N54 crank hub issues. SELECT YOUR PULLEYS HERE Crank Pulley Only $148. The friction disc depends on clamping force to clamp down the pieces of crank hub together. Pinterest. VTT is proud to finally announce our "Spline Lock" crank hub solution for the N54/N55/S55 BMW platforms. The 4 pin desig Jul 8, 2020 · Ben goes through the problems associated with higher power S55/N55/N54 crank hubs and what products/processes are available to help remedy it. 00 Power Steering Only $128. U need to turn / tighten the crank hub bolt until they do. Mar 18, 2023 · Now im also gonna be refreshing all the bolts, lines, 2019 crank hub/friction disk upgrade, valve stem seals, guides, chains, Crank linished, decked, cylinders bored to 84. Hub Only – $779. With over 200 automotive articles published, Jake Failed crank hubs have been a common ailment of the N54 / N55 / S55 family for the last 15 years, leading to crankshaft spin, causing skipped timing and potentially catastrophic engine damage. BMW S55 VRSF Cold Side Charge Pipe Upgrade. 8. The VAC Motorsports 4 Pin Crank Hub is more exact than OEM due to precise engineering and careful CNC machining. Manufacturer: SteamSpeed. 5mm and honed, motors a mix of 8bolt head/bottom end and i have a 6 bolt motor going in for a run around but ill be stealing the cam trays off of that to slap on the built motor too (Has 79,000 kilometers so like 50k miles?). It could also be because the S55 has alot more things that are mechanically driven such as the water pump, which can cause more stress on that little friction Shop here for bmw autoparts. us/BMWCrankshaftSealTool https://amzn. #3 is a large torque-to-yield bolt Sep 23, 2020 · Crank hub, 100 NM, 360 degree turn, timing / oil pump chain. 007" For a 24mm shaft, an H7/U6 fit which is categorized as " Force fit suitable for parts which can be highly stressed or for shrink fits Interference, where the heavy pressing forces required, are impractical" Vargas Turbo Technologies pioneered a fix for it. MFG Part# VTTN54STKn1335 T# 395895 Crafted to fortify the crank hub, this indispensable upgrade mitigates the risk of spinning, ensuring your engine functions seamlessly even under the most st Secure Your Engine's Heartbeat Safeguard your N54 engine’s core and enhance its performance with our precision-engineered Crank Hub Lock. We went from worrying about pushing our s55 shop car and spinning the crank hub multiple times to enjoying the car and making consistent 9 second 1/4 mile passes. 11-23-8-090-136 Grip Disc - Genuine BMW Issues relating to the standard three-piece crank hub on the S55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the Vis Motorsport one-piece billet Crank Hub upgrade. MMR Performance Crankhub Capture Plate BMW S55/N55 £ 137. It tends to break or spin independently causing severe damage to the engine. Apply oil to the guide as well. If the crankshaft bolt becomes loose and the hub is allowed to spin it will cause the engine valve timing to skip or jump, potentially causing widespread Dec 28, 2019 · Buy Here: BMW S55 VRSF Hot Side Charge Pipe Upgrade. This new double-keyed and two-piece crank hub from SSR Performance has been well-documented to be a a great alternative upgrade over the stock design. The guide has 4 holes and the hub 6. E81 / E82 / E87 Mar 25, 2022 · All that said - I think cbc (without a hub keyed to the crank) is a gimmick, but the new desiged hub, while it may not be perfect - increasing the diameter of the friction surfaces will allow them to hold more torque with the same amount of clamp load. One thing to note is that after 2010. MMR Performance now offers this uprated version of our popular Single-Piece Crank Hub, with a 4-Pin dowelled location that locks Ever since BMW debuted their N54 engine at the 2006 Geneva Motor Show, the love for turbo straight-6's has exploded! Unfortunately, this newfound love was quickly followed by headaches after enthusiasts began to experience numerous issues (Turbo failure, Fuel injector issues, faulty sensors, serpentine belts getting sucked into the engine, crank bolt/hubs coming loose, etc. Mfg#: 049453LA01-02. 2X Entries For Spring Spin To Win Sweepstakes. 75mm case hardening, making it incredibly strong and durable. Click Here to visit Store. Sep 16, 2022 · The infamous S55 crank hub failure can occur after a high shock load from changing gear, or harmonics over time loosening the crank bolt. The timing sprocket is now a single piece with the hub, and the hub uses VTT’s Spline Lock technology to positively lock the hub to the crank. After 8 months of testing, and 10+ design changes we arrived at our final design, and exhaustively tested it on the bench, and in our shop test vehicle! The way this product works is very much like a Jun 30, 2017 · These are in stock, and on the VTT Website for immediate sale. This Vargas Turbo Technologies Spline Lock Crank Hub Solution W/ Complete Package - N54 (Mfg#VTT-CRANKHUB-3) fits BMW N54 3. IQraceworks; Feb 15, 2024; N54 Failed crank hubs have been a common ailment of the N54 / N55 / S55 family for the last 15 years, leading to crankshaft spin, causing skipped timing and potentially catastrophic engine damage. Attached my homemade angle iron crankshaft tool and rested it on a couple of 2x4's. All are different. Jun 16, 2017 · Meet Jake. Oct 10, 2018 · On the S55 at least keep in mind what is generally spinning isn't always the hub on the crank snout, but the timing gear that is not directly locked to the hub. Bearings: Journal Bearing CHRA. Ships in 8 Business Days. The crankhub issue isn't something you should be worrying about given you do take care of the car. The splines (according to their testing) increase the amount of torque it takes to spin the hub on the crank. Mfg#: CH-N54. It'll be interesting to see how the spline setup works out across platforms- especially those that are more prone to the issues to begin with such as with some S55's. S55 Billet Crank Hub - 4 Pin - M3/M4/M2C NEW N54 Stock Turbo Replacement With Upgraded Waste Gate. And a 4ft iron pipe. More. THIS ALSO DOES NOT WORK ON N54 MOTORS. Even though the N55 runs the same crank hub design as the S55, the N55 doesn't produce enough power to cause a spun crank hub. If it fails it will fail in a worse way than the OEM crank hub potentially causing more damage to your motor. vacmotorsports. If the crankshaft bolt becomes loose and the hub is allowed to spin it will cause the engine valve timing to skip or jump, potentially causing widespread Feb 2, 2022 · PRODUCT LINK: https://store. The car is Rwd and manual, has FBO+inlets running 17psi through daw stage 2's, on a E50 tune with 8*'s of timing in it. KIT INCLUDES: One-Piece Design Insane Performance CNC'ed Single Piece Crank BMW S55 / N55 M2/M3/M4 Crank Hub Capture plate; BMW S55 / N55 / N54 M2/M3/M4 Crank Hub Seal Guard plate; BMW S55 / N55 / M2/M3/M4 Crank Hub Drilling Fixture; Audi A4 S4 A5 S5 Q5 A6 A7 3. Contact Us. It seems that every engine is different as everyone’s driving style is different. Torque (lb-ft) 300-332 lb-ft. #2. Possibly speculations lead to the heavy use of the kick down being a possible cause of the crank A failed hub that has spun will cause the engine valve timing to skip or jump, potentially causing widespread engine damage. This may happen over time, or all at once. Install the seal pusher guide to the crankshaft hub. Whichever way you cut it, companies that offer to "fix it" (I say that because I know of a car that failed after it had the Litchfield fix done) would definitely benefit from people believing it's a bigger issue Features. This kit includes all the necessary components to successfully replace the stock OEM crank hub with the single-piece crank hub. We offer the hubs in 2 ways. So the one piece design should eliminate many of the failures outright. Jeffman said: I’ve been doing a bunch of maintenance on my 2008 E90 335xi N54 stock turbo AT car 71K miles. 20mm or 0. 1. Bimtech PNW . #1. 9 Strength Alloy Steel Silver or Black Zinc Plated Bolts. Now you can slip your hub through the hole, through the oil sprocket, and against the nose of the crank. Realoem diagram for reference. Toggle menu. Turbo Replacement . If you've had your seal replaced due to an engine repair, crank hub upgrade, etc, please ensure that the seal has been properly set and has a minimum depth Feb 5, 2019 · Vargas crank hub bolt capture question. INSANE BMW ONE PIECE CRANK HUB - Extreme Power House. The 135i features a single turbo Precision 6266 conversion capable of 700+whp; Jake completed the entire project on his own. As tested on VTT’s own 900whp, 8000rpm race car. Aug 14, 2011 · Mine came off in about 5 minutes. Quantity. The cyl 4 rod exited the block this past week so I'm out of the modified n54 platform. alexis_c17; Mar 13, 2024 Technical Updated N54 Crank Hub Info. (Fig 2-8) 10. Issues relating to the standard three-piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet Crank Hub together with our Capture Plate for ultimate security. Failed crank hubs have been reported over several different BMW engines, including N54, N55, and S55, leading to valid worries about the integrity of the stock hub/bolt/sprocket assembly. 0L. Apparel Store. The VAC Motorsports 4 Pin Crank Hub is more exact than OEM due to precise engineering and careful CNC machining. Not entirely the when story Power might not be the only relevant factor, if the hub spins it can spin at any power level and any rpm in the s55. We suggest using blue loc-tite on your crank hub bolts. We didn't bother posting any old part numbers or designs. Single-Piece Crank Hub (L) with Capture Plate (R) Machined from T-6061 billet aluminium Aug 23, 2017 · As the crank hub problems get more, and more common, people need parts, since I am so familiar with these issues. Add to Cart. If enough load is applied via the timing chain or serpentine belt, the hub or timing sprocket can be forced to spin in relation to the crankshaft. Monday-Friday 9am-3pm Pacific Time. pdfThe Vargas Turbo Tech Crank Hub Solution Aug 23, 2017 · The hub, the oil sprocket, the timing sprocket, the timing sprocket grip disk, etc. Qty: Availability: The MMR Performance one-piece crank hub is machined from billet EN36 that’s been heat-treated with a 0. Its a bit of a hodge podge, of what is shared between the platforms. 00 Crank & Power Steering KIT (2 piece kit) $248. A forged crank and rods deliver solid strength. The BMW N54 engine utilizes a twin turbo, direct gasoline injection design. comCode "Spencer" can save you $ on your crank hub! https://precisiondyn Jan 21, 2018 · Not just S55. Now we offer two versions - for N54 engine and for S55 / N55 engines. Labor was $2000 and the upgraded crank hub was $1000. This was the 5th pull maybe on this map. Thread starter MoreBoost; Start date Feb 5, 2019; Technical Updated N54 Crank Hub Info. Years of experience with the N54/N55 community has shown us the need for a keyed unit. N54 Steam Speed STX 58 Twin Turbos for BMW N54 (TD04HL+19T) Weight: 11. I've had the Vargas spline lock crank hub and its given me zero problems since install. This issue exists on N54, N55 and S55 too. There's just a friction washer preventing the sprocket from slipping on the hub, as well as the hub screw holding everything in place which can back out. The crank has a very aggressive taper, and the sprocket will center itself once you begin to press it in. Jumping timing can cause catastrophic engine damage. Fitment: 135i/535i/335i SteamSpeed Turbos. Bimmerpost ☰ Model Selection. Find out more. Price is $99 for hub capture, and all 12. Jake has 10 years of experience maintaining, repairing, and upgrading his BMW’s. Mar 11, 2022. This product must be used with a VTT “Spline Lock” Crank hubs are CNC manufactured from 440C tool Steel with a Rockwell rating of HRC60 for the ultimate in durability, and toughness. Vargas Turbo Technology V2 Crank Hub Upgrades. The pumps also require a lot of force to drive them at full load. That said, going by the TIS Torques document, the "Vibration damper hub on crankshaft" is specified as 410 Nm, or 302. - Proudly Made in the USA. For N54 engine and for S55 / N55 engines. as the spec. Sep 9, 2017 · DIY upgrade the low pressure by changing the regulator line. Oct 10, 2018 · Good point on the S55 vs. ). Only two bolts (180 deg apart) will go in. There are many versions of these crankshaft hubs. Brand: ES#: 4423403 Mfg#: CH-N54 Oct 8, 2011 · Actually, while anecdotal, there are quite a few posts on this bulletin board about 300 lb. Our upgrade solution is made for high quality materials, tested by our racing drivers and Mar 7, 2021 · I DECIDED TO GO SINGLE TURBO ON MY 335I. You can't get them. 0TFSI Supercharger Pulley upgrade (Gen 2 bolt on) Quote: Originally Posted by hlm2c. 0000T. You cant put a price on piece of mind. As the engine rotates counter clockwise, over time the crank bolt slowly backs #crankhub #bmwm3 #spencerberkeGet your crank hub here - https://precisiondynamicsms. The OE crank hub unit's friction plate is known to slip, causing the timing to alter enough that piston-to-valve contact can occur Sep 30, 2021 · 300-335 HP. Compatible with F series N55 and S55 engines. Mar 25, 2022. I ALSO DECIED TO REBUILD THE ENGINE FROM THE GROUND UP. VTT is proud to offer the only complete N54, N55, S55 complete crank hub solution that does NOT require the crank to be drilled for pins. Mar 25, 2022 · E93. Unlike rival products, no drilling of the crankshaft is required. #4. The SSR crank hub has two great benefits over the stock S55 hub: From €599. Jake currently owns two N54 powered BMW’s – an E60 535i and E82 135i. Scottsdale, AZ. Feb 15, 2024 · Updated N54 Crank Hub Info. These are precision engineered with tight tolerances, based on factory specs. THE ENGINE FAILED FROM A WORN CAM Apr 17, 2022 · #BMW #N54 #E9XFULL INSTALLATION GUIDEhttps://vargasturbo. Crank Hub slippage is nothing new to us at Performance Haus. NOTE: THIS WILL NOT WORK ON E SERIES VEHICLES. SLOWESTN54 said: My close friends N54 Unfortunately spun a Crank hub yesterday, The cherry on top was that i was driving. F8X S55 Crank Hub Upgrade . Twitter. Mar 17, 2020 · The crank hub issue turned out to be blown out of proportion by a company called TPG tuning, using a scare tactic to sell more of their aftermarket crank hubs. VTT V2 Crank Hub Upgrade - BMW M2, M3, & M4 (N55 & S55) VTT. - 12. The S55, whether stock or modified, has a possibility of crank hub failure. I'm not willing to wait if I don't have to. Also apply a light coat of oil to the surfaces of the hub - the oil will help the seal slide into place. BEST price on Former Maximum PSI Crank Hub updated to 4 pin design! We offer the full install WITH WARRANTY on 4 pin Crank Hub Fix Kit in-house at our 6,500 square foot facility in Orange County, CA! (590 W Freedom Ave, Orange CA 92865) Contact us now for a quote and to schedule your appointment! Call: (800) 428-2808 Email: info@SSR-Performance. 3. used a 27mm impact socket along with a 3/4 inch breaker bar. 2 pin, 4 pin versions require you to drill modify your crankshaft which carries a danger to damage your crankshaft if drilling process was not Mar 18, 2024 · If you have a N54 from 2007-2008 and you replace your oilpump chain you need to upgrade to the new crank hub design. 5 years now, went stage 2 in November 2019 and have done about 15-20k miles since. Brand: ES#: 4674312. 4 lb. SELECT YOUR COLOR HERE. Powered by N54 Proven to work with more than 50 sets on the road today, SteamSpeed provides the best value for your BMW N54 turbo upgrade!. - Stainless Steel or Black Zinc Plated Single Washer. iTrader: ( 1) I've also heard it could be attributed to how the S55 has 2 HPFP's driven on the cam which causes more stress on the crank on downshifts which leads to slippage. The one-piece design ensures the friction plates can’t slip and with a new crank bolt tightened appropriately, this alone delivers a substantial improvement in reliability Jan 28, 2017 · how to replace front BMW crankshaft seal on N54 or N52BMW Seal Remover and Installer - https://geni. We are trying to pin hub and timing gears to crank nose inside the motor. The S55 crank hub is the same design as used on the N54 and N55, and while it can and has failed on stock S55’s, it is a highly isolated problem that was improved by BMW in 2016. 3@151mph, making 899whp/800+tq. (Excl. Featured Builds. A truly remarkable solution from Vargas that will eliminate the risk of a spun crank hub. Bimtech Shop. If anyone is doing any crank hub work across all three platforms. The N55 and S55 actually use the same crank hub design and parts. SKU: DKPCH Categories: 2 series, 3 series, 4 series, S55 M2competition, F80 M3 and F82 M4. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact S55 Crank Hub Upgrade. aspxThe tolerances of our new N54/N55/S55 billet crank hub . Installed the Malo crank hub plate and also tried to install the VTT crank hub bolt capture plate, but the angle of the openings on the VTT piece were about a Feb 15, 2024 · With the capture plate tightly secured, the crank bolt remains firmly in place. Oct 10, 2018 · From F8x forums it seems like hitting the kick down (on DCTs) is the most common cause of the hub slipping. E81 / E82 / E87 If you've had your seal replaced due to an engine repair, crank hub upgrade, etc, please ensure that the seal has been properly set and has a minimum depth of 3/8". Oct 10, 2018 · Not the same issue afaik. - Available in both 6 and 8 Bolt Options. The primer is to help the gasket maker cure. Probably really jolts the motor and the chain. Been tuned on BM3 for over 2. IQraceworks; Feb 15, 2024; N54 N52/N54/N55/S55 Crank Seal Guard. Crank Hub – https Mar 11, 2022 · F80. 02" Our hub splines are 0. This one-piece hub kit includes all the necessary components to successfully replace the stock OEM crank hub with the single-piece crank hub. Brand: ES#: 4423403. I SOURCED A DONOR ENGINE. The crank bolt is a special-order item. Tightening procedure: We recommend cleaning the inside threads of the crank and the crank bolt itself, and applying oil to the threads and bottom of the bolt head prior to assembly. Edit: My BMW specialist shop quoted me $3,000. Hub Plus OEM bolt, OEM Oil pump sprocket, OEM oil sprocket retainer, and VTT Crank bolt capture – $875. com/wp-content/uploads/2019/05/Spline-Lock-install-guide. Oct 17, 2018. With the hub against the crank insert your new bolt through the hub, and thread it into the crank by hand. 12 in stock (can be backordered) Add to cart. Stock crank hubs in these engines are common problems when reaching for higher power. Oct 18, 2018 · 46. - Machined 32mm Hex for Ease! - Precision CNC Billet 6061 Aluminum Kies Bolt Lock. 120408: Charging pressure control deactivation: pressure build-up blocked Learning that these were the codes for a spun crank hub, we begun the process of sourcing a Crank Hub Fix. Putting the new bolt back in was just the reverse. We suggest the Crank Hub System Nov 2, 2021 · Nov 2, 2021. PNW A90. Pulley slipping doesn't make the engine go out of time Similar principle yes but not the exact same issue. ft. S55 Crank Hub Upgrade Rod Bearing Replacement (N54 /N55/ S65/S63[TU]) A90 B58 Performance Modification s Sep 22, 2016 · Some background as this isn't a common N54 issue: the timing sprocket is not keyed to the hub or crank on N54s, N55s, and S55s. 130E20: A ngle deviation with respect to crankshaft outside tolerance. com/vac-motorsports-4-pin-crank-hub-bmw-n54n55s55-p5445. Tax included. It’s the first mass production engine from BMW to feature this technology together. There is plenty of information on the S55 crank hub issues. Quantity: Add to cart. The kit now includes Hardened crankshaft damper bolts at no additional charge. Note: First pics are of the N54 crank bolt capture; the last 3 pics are of the S55 crank bolt capture (different height/dims/8 bolts vs 6, etc. 7900 kr. The OEM crank hub is a 3 piece design, utilizing friction disc to retain engine timing together. A simple bolt on solution to keep your engine safe from catastrophic failure. The 4 pin desi. Issues with the N55 are beginning to surface as more people are pushing the N55 upwards of 600+whp. More importantly with the high capacity of the S55 platform the need for the upgrade and the chances of loosing timing are much much higher. This solution proves effective for most vehicles, and though installation typically demands 4-5 hours of labor, it can potentially save considerable costs and anguish in the long term. If you try to order old parts they will just send you the new ones. £840. The old crankhub and timing sprocket are still available in the case you only change the timing chain. Instagram . The keyed crank hub upgrade is a replacement of your stock crank hub unit with a unit that has four “keys” or “pins” for which 4 holes are drilled into the S55 crankshaft so that upon installation of the crankshaft bolt the new keyed crank hub can be locked into place permanently without a chance of relative rotation to the crankshaft. 00. Bimtech PNW ; Powered by N54 Ever since BMW debuted their N54 engine at the 2006 Geneva Motor Show, the love for turbo straight-6's has exploded! Unfortunately, this newfound love was quickly followed by headaches after enthusiasts began to experience numerous issues (Turbo failure, Fuel injector issues, faulty sensors, serpentine belts getting sucked into the engine, crank bolt/hubs coming loose, etc. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. If you are modifying your car, tracking your car, or even driving spiritedly, then upgrading your crank hub is highly recommended. The Crank Hub Upgrade has been rigorously tested by VTT themselves to ensure product is up to the usual high standards that you come to expect from the Crank Hub specialists. Installation of the MMR Performance One Piece Crank Hub and Capture Plate Kit fully addresses the well-known crank hub issues on BMW’s S55 & N55 engines in M2C, M3 and M4, and M135i/M235i models. Good piece of mind to have lol. 27. The NST BMW N54 Crank Pulley is designed for owners looking to reduce weight and increase the throttle response of their engines. If you are the spirited driver type, do yourself a favor GO TO MMR SHOP. If you have installed it already you now have a ticking time bomb. *Recommended for high-powered cars over 700HP* Issues relating to the standard three-piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet Crank Hub. The Sep 11, 2019 · Location: . Sale! - Click Here! Call Us 725-221-5267| About Us| Reviews. Apply locktite to the end of the 8 bolts provided in the VTT kit and, using a mirror, hand thread them through the holes of the Crank Bolt Capture and into the crank hub. By securely preventing the OE unit’s friction plate from slipping, catastrophic piston-to-valve contact is prevented once and for all. We hold the crank hub with a tool from the front of the motor while tightening the crank bolt instead of holding the crank with a flywheel locking tool. Our F80 currently holds the F series 1/4 mile record of 9. Reinforced crank hub for BMW engines. Dec 17, 2019 · I was pleasantly surprised to find that the Crank Bolt Capture fits nice and tight on the crank bolt with zero slop. tx no ue xd si ie dc re rk ff