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  • Evan Patak's Avatar
    Yesterday, 01:45 PM
    N54 Community, Most of my updates are posted in my build log but I figured this was interesting enough and deserved it's own thread. My E61 Build Thread: I also hope this is motivational for those debating whether to pull the trigger on a big project like an engine swap, trans swap, whatever. Go for it! BMW forums are filled with people advising others to "sell your car and just buy a manual one," where the reality is these "advisors" have never done the swap or have any first hand experience with the intricacies of the project, it seems their advice is driven by fear of the unknown. Furthermore, the sense of accomplishment with tackling projects yourself is worth it all by itself, not to mention the knowledge gained or the money saved on labor. *steps off soapbox* So it has been about 4 months since I blew my motor: Prior to my engine exploding I was collecting parts for my AT-MT conversion as well as an AWD-RWD conversion with all M5 components. A blown motor is never convenient but the timing worked out well as I was in a position where I could undertake all projects at once which has certain advantages. My wrenching skills and understanding of the E6X/N54 platforms have been developing and although all of these relatively major projects were beyond the scope of work I had previously done, I felt I could pull it off with ample due-diligence and patience. I mean it's all nuts and bolts right? I don't have plans to take the HP/TQ much past what it was previously (~550-600whp) for my intended use as a daily-driven weapon, that power is ample and it think it is a good range where the stock internal N54 can manage the load/stress. It seems >600whp is where wear and tear are really amplified. My goal was to find a N54 long block with low-moderate (<75,000) miles on it, $2,000 or less was the price I was hunting for. Many people sarcastically wished me luck or simply said that it was not possible; I am a competitive person by nature so this feedback only fueled my interest in succeeding thanks! As all the naysayers would have it, most of the engines that met my criteria were in the $3,000-$4,000 range. The best deal I had found after a month or so of casual searching was a 535xi engine w/76k and a 6 month part warranty for $2,650 shipped from Canada (shipping was $230 or so). Not a bad deal but I passed. I ended up finding an ad on Craigslist for an N54 engine out in Fontana for $800, no picture or additional information listed but after contacting the seller they confirmed with was an N54 from a 2011 335is and had 35k on it. I went immediately to view the engine in person. The engine was complete minus the turbos and had been in an accident where the car was totaled, there was some damage to the exterior components, oil pan, and valve cover. As it was, $800 was still a great deal and if the engine was a flop I could likely part it out and break even financially. Oddly enough the CL ad was posted for over 3 months, there had been multiple buyers but all of them were scared off by the damage. I bought the engine for $800, paid $100 for it to be shipped to my house later that day, and tipped the high schooler who delivered it $40. So $940 shipped to my garage, not bad. After the initial tear down I sold the oil filter housing, wiring harness, HPFP, and i12 injectors for $950 so I know had a free N54 engine. My main concern was the block and head which after examining the damage inflicted to the engine from the crash, should still be good, I confirmed this with some "good enough" leak down tests and continued ordering parts to rebuild the front side of the engine: timing chain, cogs, oil and vacuum pump drive system, etc. All of the other engine components would be transferred over from my blown motor. Rebuild Parts List Chains, sprockets, gears: $170 Oil pan gasket, hardware: $85 Used "eBay 535i oil pan: $220 TOTAL: $475 Since the engine is still out of the wagon and it has not yet been started, ran, or tuned to confirm function, WE WILL SEE if this all plays out or if the joke's on me (naysayers patiently waiting). As it stands now, $465 for an N54 with <35k on it is a deal I am very happy with. On to the pics! Evan Replacement engine home for the first time: Stripping down the engine. Most components were damaged but some were not. A better look at the damage on the bottom. You cans ee the stress cracks in the cog and also the impact marks on the chain and chain guide. Valve cover damage Thankfully it was only superficial to the cover There was some mild contamination inside the engine from the holes in the oil pan + sitting in a junkyard for a few months The rest of the engine looked great internally Peaking up a cylinder Engine stripped down and exterior cleaned There was a broken oil pan bolt which needed to be rescued The as-is leak down test yielded terrible results so I oiled up the cylinder walls and retested. There were some variation with the reading on 2 cylinders but they had audible intake valve leak (inconsistent) and since I can't fire up the engine to get it up to operating temp, possibly clean gunk, and improve valve seat, the numbers were "good enough" for me to continue with the rebuild. 1% 12% 8% 4% 6% 12% Next up was cleaning the valves 1 2 3 4 5 6 Annie the dog is not amused New oil pan arrived, it is in much better condition than the others Tech Tip: A used subframe bolt works well as a counterhold in the Harbor Freight engine stand. I would still recommend a proper hub counterhold but this certainly helps. Didn't have the proper tool to remove this vacuum pump gear access plug from the front and on my old engine I was able to pop it out from the inside (working by the oil pump) with a long pry bar. Knowing I had an extra one to use, this one got the dremel. Got it! Camshaft lock installed Chainguide mounting plugs removed Timing chain tensioner removed, make sure to pump it a few times to evacuate old oil and also replace the aluminum seal. Hub counter hold and breaker bar with 22mm socket Teamwork Interesting build up, my 535xi engine with 105k didn't have anything like this Vanos sensors removed and cleaned Removing Vanos units Vanos, timing chain, and chain guide removed Vanos cleaned Vacuum and oil pump drive system removed Closer at the oil pump drive damage Bent cog vs new Chain guide damage from chain tension An oversight on my part but there are subtle differences between some N54 hubs and sprockets 535xi cog left, 335is right, the friction/spacer design is also different but most importantly the 335is cogs I ordered would not fit on the 535xi style hub I bought so I ended up running the original 335is hub with new cogs. Workspace N54 guts With frontside components removed I cleaned the engine as much as I could with rags and compressed air Much better now I used my old lower chain guide as it didn't have any damage and installed all new drive components Oil pump in. I reused the 335is pump as it had no noticeable damage and had 1/3 the mileage of my 535xi unit. Drive system in Timing chain and vanos back in Camshaft sensors and timing tool installed Crank hub in Timing chain pre-tensioned Torqued to spec (torque + 180) Oil pump, pickup, and baffle installed and torqued Oil pan gasket Oil pan installed and torqued Inspected and cleaned all pulleys. They collect little mounds of dirt over time so removing that should lighten the pulleys and improve performance right? +5hp? Before/After Installed Belt tensioner installed Had a roque/stripped manifold stud to remove #Tools Hard to reach places and specifc torque angles + low load specs Valve cover on Let's see how well I organized my oem nuts and bolts... Alternator and compressor installed Oil filter housing service. I had a set of new gaskets sitting for over year so this was an IDEAL time to install them, lol. New filter and the BMS bypass valve Gotta love machined metal My low mileage i12 injectors cleaned and installed New set of NGKs needed to be gapped. I have 2 different gap tools and they both suck, this is by far the best way I have found to lower the gap. Delphi coils and plugs installed HPFP, fuel rail, and engine mount installed Starting to look like a normal N54
    10 replies | 466 view(s)
  • dzenno@PTF's Avatar
    Yesterday, 10:28 PM
    For those of you curious on how your S55 works, bootmod3's logging can help with tremendous insight. Over 250 channels available for datalogging. This log is doing over 30 in parallel. We've gone close to 40 in parallel without any issues! :happyanim: This came in from some testing with one of our closed beta cars on this forum. Live graph, open to public: To log and switch maps, you plug the bootmod3 device into the OBD port, it registers your car with the bootmod3 cloud servers and makes the car available for all the features available. Once you're in the mobile app you see your car connected and can start logging, map switching and loading custom tunes, diagnostics (code read/clear, reset adaptations, ecu reset), etc. As an aside, this was after a map switch was done over to the stock (factory/original) map/tune :)
    3 replies | 114 view(s)
  • Sticky's Avatar
    Yesterday, 11:34 PM
    Here we go again. In case you forgot BMW previously supplied Jaguar/Land Rover with a V8. Specifically the naturally aspirated M62 V8 for the 2002-2005 Range Rover. Jaguar and Land Rover developed their AJ133 5.0 liter direct injected V8 architecture after this. Keep in mind BMW owned the Rover Group for six years selling their majority stake in 2000 but continuing to supply transmissions, electronics, and motors. BMW still holds a stake today. Now, this is pretty good news for everyone. Jaguar and Land Rover will finally get a more modern architecture with turbos as their supercharged V8 quite simply is overmatched by their German turbo V8 competition. The N63TU and S63TU aftermarket will expand which is good for tuners and good for BimmerBoost with Jaguar fans no doubt looking into tuning. This is all very early and we will have to see what models get the engine. BMW is updating the S63TU for the next generation M5. It's possible Jaguar will receive this variant. This certainly is cheaper than Jaguar/Land Rover developing a new turbo V8 and BMW's motor is proven. Source
    2 replies | 29 view(s)
  • AdminTeam's Avatar
    Yesterday, 07:23 PM
    Hey DessieI630: :text-welcomewave:
    0 replies | 137 view(s)
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    Yesterday, 12:34 PM
    Hey dcat_store2: :text-welcomewave:
    0 replies | 131 view(s)
  • AdminTeam's Avatar
    Today, 01:12 AM
    Welcome taxauth93, take a look around, I think you will like what you see.
    0 replies | 126 view(s)
  • AdminTeam's Avatar
    Yesterday, 07:14 PM
    Welcome feeder2022, take a look around, I think you will like what you see.
    0 replies | 125 view(s)
  • AdminTeam's Avatar
    Yesterday, 11:46 PM
    Hey qwertyuiop93: :text-welcomewave:
    0 replies | 119 view(s)
  • AdminTeam's Avatar
    Today, 12:45 AM
    Hey chiendepzzai95: :text-welcomewave:
    0 replies | 115 view(s)
  • AdminTeam's Avatar
    Yesterday, 11:07 PM
    Hey nanoo: :text-welcomewave:
    0 replies | 115 view(s)
  • AdminTeam's Avatar
    Yesterday, 11:02 PM
    dmac, we appreciate you taking the time to join.
    0 replies | 106 view(s)
  • AdminTeam's Avatar
    Today, 06:01 AM
    Welcome buituananh01, take a look around, I think you will like what you see.
    0 replies | 86 view(s)
  • AdminTeam's Avatar
    Today, 05:42 AM
    Hey tanthaison25052015: :text-welcomewave:
    0 replies | 84 view(s)
  • Sticky's Avatar
    Yesterday, 04:52 PM
    That is what the video shows here. These two heavyweights go at it from a stop and the Porsche gets an initial lead only for the Ferrari to quickly reel it in and pull away. It's a shocking beatdown considering this is not a stock Porsche 991.1 Turbo S in the video. Supposedly this Turbo S has a RUF tune. We do not know how aggressive the RUF tune is on the 991.1 Turbo S but we do know a flash tuned 991.1 Turbo S is capable of 600 lb-ft of torque at the wheels along with 500 horsepower at all four wheels. The Ferrari 488 GTB in stock form has 535 horsepower and 495 lb-ft of torque at the wheels. It definitely should have trouble from a stop with a tuned Porsche 991.1 Turbo S or at least take longer to reel it in and pass. This certainly will have the Ferrari fanboys beating their chests:
    0 replies | 73 view(s)
  • AdminTeam's Avatar
    Today, 09:22 AM
    FletaDupps, we appreciate you taking the time to join.
    0 replies | 16 view(s)
  • AdminTeam's Avatar
    Today, 09:59 AM
    Welcome to a real enthusiast forum linhnguyenRuby6.
    0 replies | 0 view(s)
  • FRD135i's Avatar
    Today, 10:21 AM
    Isn't that what this is, just with more useful information?
    32 replies | 6336 view(s)
  • FRD135i's Avatar
    Today, 10:00 AM
    some people just get lucky starts in life
    641 replies | 56116 view(s)
  • Legionofboom's Avatar
    325 replies | 35064 view(s)
  • ///MPOSTER's Avatar
    Today, 09:51 AM
    Monday when you are running late for a meeting and forgot to fill up Sunday night.
    2805 replies | 234266 view(s)
  • jt0407's Avatar
    Today, 09:31 AM
    I can have the whole kit on and off in about 3 hours now.
    1120 replies | 76228 view(s)
  • Artsoasis's Avatar
    Today, 09:28 AM
    Interested in this. I have an upgraded 335is DCT pushing well over 575whp. The 335is has a known issue of driveshafts failing.
    18 replies | 1233 view(s)
  • gixercho's Avatar
    Today, 08:33 AM
    gixercho replied to a thread Custom Single Turbo in N54
    I have to sort the fueling in the end to reveal the full potential of no matter which turbo.
    128 replies | 6728 view(s)
  • Cuda's Avatar
    Today, 08:16 AM
    Cuda replied to a thread Custom Single Turbo in N54
    I was wondering when we were going to see something from you again!
    128 replies | 6728 view(s)
  • gixercho's Avatar
    Today, 07:58 AM
    gixercho replied to a thread Custom Single Turbo in N54
    Tomorrow i am switching to ODGT3079HTA (GT30 frame) and finaly will have data from this size turbo on N54 motor, because some guys have GT30 turbos, but don't want to share.
    128 replies | 6728 view(s)
  • Den*'s Avatar
    Today, 06:50 AM
    so far i ran about 3000 kilometers already with JP manifold. I usually drive about 50km a day tuning is not completed yet, i mean we still at phase where we tune DME. Just not enough time and weather is really hot here, so probably will finalize in August-September
    1120 replies | 76228 view(s)
  • CS@MFactory's Avatar
    Today, 06:27 AM
    All PMs replied to :)
    461 replies | 33438 view(s)
  • CS@MFactory's Avatar
    Today, 06:26 AM
    All PMs replied to :)
    127 replies | 13743 view(s)
  • CS@MFactory's Avatar
    Today, 06:25 AM
    All PMs replied to :)
    237 replies | 19776 view(s)
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