10-24-2021, 10:15 PM | #1 |
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N63 Tear Down
Featured on BIMMERPOST.com As we know, some of the differences between the N & S are: • Engine tune (X5M +77 hp, +0 tq; winds +1k rpm -- CP +17hp) • Transmission tune (X5M adds 4wd "sport" mode & slightly faster shifting) • X5M adds different piston crown for better cooling • X5M adds additional engine/transmission oil cooler • X5M adds 2nd oil sump, completely different oil cooling • X5M adds different engine & transmission mounts |
10-24-2021, 11:24 PM | #2 |
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This is probably the first N64 with "only" 400hp/440tq. Both the N63 and S63 have gone through many revisions. Nevertheless, amazing video, these engines are absolute awful to maintain and work on.
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10-25-2021, 01:20 AM | #3 | |
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The leaky oil in the V also seems scary ... Anyway, it's a good scared straight video for modding for me |
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10-25-2021, 08:52 AM | #5 |
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Revised or not, these engines are a total nightmare to work on. They are great performing engines when they are new, but once they get older the maintenance on them is very expensive.
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10-25-2021, 08:47 PM | #6 |
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Interesting about chain guides. Our 328i F90 spent 2.5 weeks at BMW of Manhattan having the front end of the engine taken off to replace guides as part of a service bulletin. They had a a similar caramel plastic color so wonder if it was the same material. Maybe an example where trying to save a few cents cost them big in warranty repairs.
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10-25-2021, 09:24 PM | #7 | |
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Then the warranty claims started coming in ... Corporate life! |
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10-26-2021, 01:03 PM | #8 |
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Here is the article for the video for a bit more reference to that tear down. It is thee older model done in an educated way to show what issues plagued N63 early days.
Great share btw! https://bimmerlife.com/2021/10/22/vi...tm_name=member Not sure if everyone can view that or not?
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10-26-2021, 02:57 PM | #9 | |
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Which trim and model effects it too. The M50i engine is the "Top" performance in the N63 base with the obvious plus up being the change to the S S63 which is further upgraded. The Base N62 in the original 50i line is a M or a B based on year it was produced. https://bmwtuning.co/bmw-n63-vs-n63t...tu2-vs-n63tu3/ |
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10-26-2021, 09:43 PM | #10 |
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Funny because I always do this and honestly never even thought about why ... on my M4 ~10k of 14k miles are driven in anger and, of those, about 4k are "cool down" miles on hwy 1
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10-29-2021, 01:39 PM | #11 |
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His videos came on my feed a couple weeks ago - I like 'em.
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10-29-2021, 02:16 PM | #12 |
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That's very cool. Thanks for posting!
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10-29-2021, 04:26 PM | #13 |
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I live 5 miles from the freeway and the last mile is 25mph in my gated community. So a forced cool down period!
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10-29-2021, 06:31 PM | #14 | ||
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No cool down in my gated community, as the garage is where the beast cools down.
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10-29-2021, 07:44 PM | #15 |
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10-29-2021, 08:55 PM | #16 |
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I just traded in my 2009 X6 xdrive 50i. I had it almost 13 years with 78K on the odometer. The only problem I had was the last 2-3 years I had to feed it oil every other month. Other than that, I had no issues. I don't know because it only had 78K miles or if we just didn't drive it very hard. After reading all the reports, I'm a little worried, especially because I traded my X6 in for a X5 M50i. Basically the same motor. I'm hoping BMW figured out the problem and I was going to ask the crew, would it help with cooling if when I returned from a trip if I opened the hood to help with the cooling, or would that not do anything?
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10-29-2021, 10:52 PM | #17 | |
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10-29-2021, 11:45 PM | #18 | ||
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10-29-2021, 11:54 PM | #19 | |
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10-30-2021, 06:58 AM | #20 | ||
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It will cool off after running and the newest N63 is very different than the original 09 models. BMW N63B44T3 - N63TU3 Technical Update 3 N63B44T3 Horsepower: 523 hp (390kW) N63B44T3 Torque: 553 lb-ft (750 N-m) Years: 2018-present The top tier version of the N63TU3 is quite impressive. It produces a staggering 523 horsepower and 553 torque. Notice, this is the same torque output as the impressive S63 M engines. Updates are similar to the middle output version. Although, the upper output version gets some stronger, beefier components to support the power. Updates include: **Also includes above TU3 updates, but we do not mention them here to avoid duplicates Electric arc wire sprayed cylinder walls Piston skirt coating Crankshaft re-balanced with new main bearing shells Forged rods from S63TU4 Larger turbochargers with electrical blow-off valves Updated ignition system, taken from modular B series engines The top power N63TU3 receives a few extra updates over the middle output version. Cylinder walls receive arc spraying for strength and durability. Pistons are coated to accommodate the cylinder walls update. The crankshaft is lightened and strengthened. N63TU3 forged rods are carried over from the 591 horsepower S63TU4. Larger turbochargers are responsible for the significant increase in power and torque. Finally, the ignition system is updated to support the new found power. As evidenced, this update is almost all to do with power. New, larger turbos produce impressive numbers. The N63TU3 is mod happy and is a strong engine designed to handle the power and torque. Excellent update and beautiful engine. BMW N63 Final Thoughts From one of the least reliable BMW engines to one of the most underrated BMW engines. BMW experienced early issues with the original N63. Fortunately, customer care packages dampen the troubles. Furthermore, issues were resolved with the release of the N63TU. This engine was basically a complete re-design of the N63. The N63TU2 takes another step forward with the change to efficient twin-scroll turbos. |
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10-30-2021, 07:35 AM | #21 | |||
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10-30-2021, 08:35 AM | #22 |
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Awesome video, thanks for sharing that. Crumbly timing chain guides are thing on German motors and it's a shame because there are so many wonderful bits of engineering that could soldier on for years to come but are held back by this shit plastic.
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