B58 vs B58TU: A brief look at the technical differences between the two generations.

The B58TU (also known as the B58TU1) is the second generation evolution of the much loved B58 engine. But what has changed exactly?
1. Quick Look: History of B58 00:24
2. General Benefits of B58TU over B58 02:31
3. 350 Bar Fuel Injection Pressure 03:14
4. New Spark Plugs 04:09
5. New Cylinder Head 04:28
6. Form Honing Use in Production 05:56
7. New Exhaust Turbocharger 06:22
8. Comp. Temp. Sensor Re-location 06:47
9. Split Cooling 07:38
10. eSCV 09:00
11. Coolant Pump pressure relief valve 10:11
12. DME / ECU 11:06
13. New Single-Part Chain Drive 11:15
14. Camshaft Sprockets 12:21
15. Vacuum pump now Optional 12:42
Music: www.bensound.com
#m140i #m140iShadowEdition #mods #HotHatch #LegendInTheMaking #Project357 #Akrapovic #B58 #B58TU

[@0071maou]

Please don't stop doing these! They are so helpfull to understand my M340i better and what each and every part does to it whilst tuning. You earned yourself a sub! :)

[@NoBrainerTalk]

Thank you for the feedback... :)

[@davidf1791]

Da

[@DjNikGnashers]

Fantastic & in-depth analysis.

[@terrancepinkney777]

I just purchased 2019 540i with this B58 engine this was super informative sir thank you for this!

[@londonlore5881]

Excellent video and really informative! Thanks!! 🙏🏼👍🏽

[@FLiPpiNpRidE]

Damn this video was way more informative than I was expecting

[@owjianbang01]

Great detail to aid my research on a 2020 m340i

[@adn9122]

This is amazing❤ Great info!!

[@emerytorres6118]

Awesome videos, keep them coming. Thanks

[@NoBrainerTalk]

Appreciated...

[@yeelee0927]

Switched from M240i to M340i, been noticing differences but not knowing how it is caused. Thanks to you now I know!

[@NoBrainerTalk]

Glad I can help..

[@davec5237]

Very informative, thanks for posting 👍

[@NoBrainerTalk]

Thank you, for some reason there is audio corruption in a number of places, I wish I could fix it, but oh well...

[@kubastachu9860]

@@NoBrainerTalk just take care of the intro music levels and it'll be fine.

[@DanielScariti]

You deserve way more subscribers for the amount of effort you put into these videos.

[@NoBrainerTalk]

Thank you, appreciated.

[@Unplugged704]

Great video! Thank you!

[@chrise202]

Simply Outstanding. Please do keep doing these!

[@MrPocketRocket]

Fantastic video! Very informative with the detail. I would love to see something similar comparing the latest B58 engine vs the S58? That’ll be a good one! 👌🏼😄

[@NoBrainerTalk]

Check my channel, already made it (B58 vs S58). :)

[@kirill6020]

The best video on this theme!

[@itaybutavia1204]

Thank you for your information

[@mirageycq]

Thank you very much. Highly appreciated. I got he new engine on my M440i.

[@kunalmore5212]

Smoky superb video

[@alltheway99]

So detailed 🙂 Thank you! I would prefer the first version, As pressure of injectors is lower

[@SonicUnleashed25]

Cool thing you can do is upgrade it at any point to squeeze out more power from first gen b58

[@yahtadi5152]

Hey this is amazing, kinda wonder where th did you get all those info?

[@NoBrainerTalk]

Thank you. The information is collected from different sources. Some of it is available online, if you Google B58 pdf you will find very detailed technical manual information.

[@dgdave2673]

He gleaned a few from Papadakis Racing Steph’s disassembly video ! He should have been a bit more honest with his sources.

[@qx4n9e1xp]

I love & enjoy this video.

[@madanialmadani6127]

No unnecessary talk. just fact and no Bs love this. I am your number one fan well done keep it going❤❤❤ 🙏

[@NoBrainerTalk]

Wow, thanks for the compliments!

[@tube2892]

Great video. Any information on why this engines do not have a blow off valve or diverter valve?

[@NoBrainerTalk]

OK, so I believe that in the case of the B58 the system is working proactively rather than reactively. The potential pressure peaks caused by sudden load shedding (i.e. due to the inertia of the turbocharger turbine), is tackled by the DME/ECU through electrical charging pressure control instructions to the various components. Upcoming pressure peaks are predicted and mitigated by quick adjustment of the wastegate valve, and using assistance from the valvetronic and the throttle valve (to divert the remaining charge air to the exhaust).

[@BurnsRubber]

Great video! Can you do a video on the 48v mild hybrid system on the 2022 X3 M40i?

[@NoBrainerTalk]

That is a great suggestion.

[@f36_garage71]

Thank you for this informative video! I love the B58 in my 45k miles 440i and currently around 430hp with BM3 stage 2/downpipe. I do worry about rod knock and other failures, but hope the current power is within the safe margin

[@SuperHell99]

My 440i is almost at 100k miles and still haven't had a single mechanical issue! These engines are built to handle extra power

[@speedtab215]

Oh you don’t really have to worry about knock, you’re only pushing 430hp.. that’s very modest for the b58

[@DennyBalance]

@@SuperHell99 how's it treated you since then? Looking to see if a higher mile 540i is worth it lol

[@SuperHell99]

@Denny Balance had it stage 2 tuned with water methanol injection and still running strong. My tuner did warn me that injectors may start to go on their way out around this mileage though

[@kraakjalg]

Thanks for the informative content. To ensure I got the information right, the main difference between 540i and m340i is the ECU tune set by BMW? Thanks!

[@NoBrainerTalk]

Hi there. No that's not the case. The M340i has the high power B58TU engine (B58B30O1). The 540i up to April 2019 has the 1st generation B58 engine (B58B30M0) and the 540i from April 2019 has the medium power B58TU engine (B58B30M1). There are hardware differences between the engines, it is not merely a matter of ECU tune. Hope this helps.

[@kraakjalg]

@@NoBrainerTalk Once again, thanks a lot for your time.

[@mavitumingi2750]

It's good to mention that in BMW engine nomenclature 'TU' stands for Technical Upgrade (or Technical Update according to some sources)

[@NoBrainerTalk]

Thank you for that! :) Would you happen to know what the "C" stands for in the variant B58B30C installed in the Supra?

[@mavitumingi2750]

@@NoBrainerTalk That 'C' is still a mystery to me. Normally that position would be for Power Level designation but from all the resources I can find, there is no C designation.

[@ArtMedeu]

@@NoBrainerTalk I believe C stand for “Customized” for Supra.

[@NoBrainerTalk]

@@ArtMedeu This is what I used to think, but B58B30C is just B58B30M1

[@FabianCharrua]

Thank you! you're amazing

[@michaelsimoncelli588]

So would the Coolant Pressure relief valve they installed (11) possibly solve the issues of coolant leaking from the engine that has become "normal" for the B58 and previous N* versions?

[@NoBrainerTalk]

Yes, it does seem this is a measure implemented to partially address this issue. However, it would only assist with coolant loss from the engine coolant circuit, and it could not help with similar coolant loss from the intercooler coolant circuit. Having said that, it's my personal impression (not based on any data) that the engine coolant circuit is more susceptible to "unexplained" coolant loss than the intercooler coolant circuit. It might be useful to perform a survey and see how many B58TU owners have coolant loss compared to B58 owners and from which circuit...

[@universalg_]

@@NoBrainerTalk Its weird man Im on the gen1 B58 and my coolant magically disappears even tho I replaced my coolant tank cap. My friend who works at BMW says that it could be coolent vent line/hose or the water pump as the first iterations of the water pump were plastic and new revisions are steel. I dont know for sure though but I never heard of the coolant circuit/coolant pressure relief valve

[@NoBrainerTalk]

@@universalg_ Some suggestions: to determine where the fault might be, requires to pressurise the coolant circuit and observe if pressure is maintained. Sometimes a dye could be used to help find the location of the leak. A complete loss of coolant should leave wetting, or at the very least white residue deposits, wherever it is leaking from. Have a very good look around the engine bay. White exhaust smoke would indicate the coolant is leaking into the cylinders. Hope this helps...

[@thekillerking7393]

Nice bro thanks

[@rodmanser7573]

GREAT videos. Now I no longer have to read through all the dealer mechanic's briefings. Many are very long reads.

[@kosditrade]

Great video, thanks. So to be clear: A Toyota Supra have aluminium cylinder head with integrated exhaust manifold? The M340i have different cylinder head made from steal without integrated exhaust manifold in the cylinder head? Maybe steal cylinder head is better for more power?

[@NoBrainerTalk]

Correct on the supra engine, yes. We can only guess as to what has led to the return of the "old style" cylinder head design on the higher power B58TU engines, as the BMW engineering analysis is not available to study. Of course we cannot rule out that it can potentially cope with higher power compared to the new aluminium cylinder head with integrated exhaust manifold. The new design might help with heat retention (faster warm-up means less emissions) but heat retention might also mean power losses arrive earlier when pushed hard. So the old design might mean slower warmup but less power loss when pushed hard (which becomes more critical as the power increases).

[@kosditrade]

OK, very clear explained, thank you!

[@cjpp78ytube]

I've seen most of this info rom my own research bit it's great to have it all consolidated in one video..I'm still wondering what's the difference between the supra B58tu engine and B58tu engines BMW put in their cars?The 2021 supra now has the higher output tu engine rated at same power as z4 and M340i , 382hp..wonder if there any difference or is it the exact same variant of B58?

[@NoBrainerTalk]

This needs further research, but there is some information that the pistons and rods are a different Part Number, and the theory is the supra variant is capable of handling more boost. Otherwise, it seems (at first glance and pending actual research) to be a typical B58B30M1 engine with a Toyota engine cover.

[@pokest225]

In other places, people say the 382hp model has new head design with 6 port external exhaust manifold, instead of the early "headifold" desing with turbo bolted directly with only 2 exhaust channels, that was present in the first year supra engine (340hp). Also the new engine has different compression ratio, so maybe it has different pistons too, not sure about that.

[@NoBrainerTalk]

@@pokest225 Hi, yes the B58B30O1 is the 382hp variant and the B58B30M1 is the other variant with lesser hp (depending on series/model, typically 340hp). The B58TU and B58 both have the same 11:1 cylinder compression ratio. The original supra engine appears to be based on the B58B30M1, but with some changes. The latest supra may have an engine based on the B58B30O1. Some of the internal parts may be subject to on-going production improvements that are unrelated to engine type or generation (e.g. the newest B58B30M1 may be slightly improved compared to an early B58B30M1, etc). Typically only safety issues (or these days false emissions results) would result in mandatory recall to implement.

[@pis2004]

The cylinder head on the Supra is made by Yamaha

[@motorhead4875]

Most Logical Engine Construction!

[@n.prince2458]

Not bad. Very professional! I missed a few things. A) With the B58TU (high powered) does the engine still has to be removed to service or replace the Vanos and the timing chain? B) It was mentioned that the turbo can be removed seperately, is that for the high powered B58TU? C) Does that include the ability to run it without a turbo? D) Can it make the B58TU be easier to convert to a supercharger? E) Is the Diesel available with a 6 speed gearbox, or any of the of B58TU engines available with an all wheel drive manual transmission? F) I would like to see a video strictly on the B58TU high powered engine. I think it would be ideal for you to have a PayPal link for donations and support.

[@NoBrainerTalk]

Thank you for the positive feedback. A) Access to those is the same as the other engine variants, indeed I believe it will require the engine to be raised out of the engine bay, B) For the M1 version of the engine, C) Without/bypassing the turbo (without charge air) the engine will probably still run with very limited power output and essentially will go into limp mode, D) I don't know tbh E) Diesel version is B57, I believe it is currently auto GB only. I'm struggling to find any example of B58TU with manual transmission, so I do believe B58TU is auto only, F) Noted on dedicated video, let me see what I can do. I don't deserve donations, but I appreciate the suggestion. :)

[@n.prince2458]

@@NoBrainerTalk 👍 O.K...the most interesting version is the B58B3001

[@rodackor]

I am quite puzzled by the level of details you are providing, I am wondering where you got this information from, it looks as if you were one of the designers in the project. This kind of information is hard to get hold of. Thanks for sharing.

[@NoBrainerTalk]

Hey there, thank you very much. There's alot of info on the internet, sometimes scattered. I guess I'm trying to collect it into a single source. If you have any topic you would like to know more about please let me know, and I will at least try to find more info for a future video.

[@sabamacx]

BMW releases summary information for mechanics. Google " BMW Technical training Product information PDF B58" or S58 or N55 or any other engine code.

[@NoBrainerTalk]

@@sabamacx Can anyone send me the one for the B48? :) [e-mail]

[@kzzaza1768]

Thanks for your vidéo ! Which engine version for my m140i lci 2018 so ? Thanks

[@NoBrainerTalk]

Hey there, sorry for late reply. All M140i will have the variant B58B30M0, but they may feature small modifications/improvements based on year of production. So 2018 engine could be slightly different to original 2016 engine in some minor ways.

[@floydboyce274]

I’m glad to own of of these great motors!

[@JJ-dm9tx]

I feel like I finally got it right owning this engine

[@scringe1]

Great video. I have a 2020 BMW 440i. What engine do I have? Is it the higher power version or medium?

[@NoBrainerTalk]

Hi, from its launch in 2020 the G22 M440i has the B58B30O1 engine. Up to 2019, the predecessor to the G22 M440i (the F32 440i) had the B58B30M0. If your car is a 2020 year of build then most likely you have a G22 M440i with the higher power B58B30O1 engine. I made a video of how to check which version of B58 is under the bonnet, hope this helps: kzbin.info/www/bejne/oqipeWBrhcypbdE

[@scringe1]

@@NoBrainerTalk Interesting. I asked due my 440i was made right before the new 4 series was built. I have the F32. My car was made in March of 2020. Great info and thank you so much.

[@sami.p.3355]

good job

[@NoBrainerTalk]

Thank you...

[@claudioagmfilho]

Great video wow !!!

[@NoBrainerTalk]

Thank you so much!

[@dylanharty4164]

Awesome and informative video! Although it makes me slightly sad I have the original B58 in my 340i 😅

[@edwardnack]

How do I know what b58 I have?

[@solerzyoutube]

@@edwardnack what car do you have

[@edwardnack]

@@solerzyoutube i have a G31 540i 2018

[@kunalmore5212]

I have the full fat 382 horse power B58TU in my 340i ….😊😊😊

[@kunalmore5212]

M340i G20

[@beneficialmight9816]

One of the best videos regarding the B58 engine. Could you please elaborate on the difference between mid-power engine vs high-power engine? For example X3 m40i LCI vs X5 40i? Extra power is indeed very tempting..

[@NoBrainerTalk]

Hi, the main hardware difference between the medium power B58B30M1 and high power B58B30O1 is the cylinder head, the attached turbocharger, and the catted downpipe attached to the turbo. There will also certainly be different ECU software between the two variants. The cylinder head is most likely aluminium in both B58TU variants, but while the B58B30O1 retains a very similar design to the 1st generation B58, the B58B30M1 has a new design cylinder head with integrated exhaust manifold (which is not done for performance reasons but for cost and efficiency improvements), and the exhaust turbocharger is modified to account for that. The catalytic converters between the two B58TU variants are also different P/Ns which might indicate that the B58B30O1 cat is more free flowing to help the engine achieve the higher power (for example the M1 cat might have two cores - one a 600cpsi and one a 400cpsi, whereas the O1 might have a 600cpsi core and 300 cpsi core). These are the main differences, I believe the two variants are otherwise the same. Theoretically you can tune the B58B30M1 engine to achieve the same performance as the B58B30O1 (335hp to 382hp) with no hardware changes as it's unlikely that 382hp will be pushing the limits of the B58B30M1 cylinder head. It's also possible to downrate the B58B30O1 to produce less hp. If I had to guess why BMW developed the two variants it would be due to needing to meet certain emissions requirements (e.g. average fleet requirements), and not being able to achieve this with the B58B30O1 design. They possibly had to implement further changes to the B58TU design, hence the creation of the B58B30M1. This is a pure guess, but could explain why the B58B30O1 is the B variant and B58B30M1 is the C variant.

[@beneficialmight9816]

​@@NoBrainerTalk Didnt expect that prompt reply lol, thanks for that. Based on your description, g05 40i should achieve stock x3 m40i power indicators with a light ecu tune combined with a catless dp. Downpipe should do the trick for the exhaust sound.

[@NoBrainerTalk]

@@beneficialmight9816 Indeed, with a catless dp and tune it should be possible to significantly exceed 382hp. Keep in mind the main benefit of the B58B30M1 cylinder head is lower emissions through faster warmup, which on the negative side means the engine continues being warmer when it is no longer needed (so this implies that it generally relies more on the cooling system than the B58B30O1, whose cylinder head design evidently retains less heat). I would guess therefore that while the M1 engine can accomplish stellar performance, when pushed for an extended time the M1 is more likely to reduce power to keep within acceptable operating temperatures. The M1 would also therefore benefit more from cooling system upgrades compared to the O1.. Just some personal thoughts...

[@beneficialmight9816]

@@NoBrainerTalk Very interesting thought indeed. I am drawing a strong positive conclusion for myself regarding B58B30M1. For me personally, G30 540i is a perfect mix of comfort and performance. I read your all replies within the whole comment section and I understand that you don't recommend switching G30 540i for lci model purely because of engine upgrades. Any recommendations to consider before buying G30 pre lci vs lci?

[@NoBrainerTalk]

@@beneficialmight9816 The G30 LCI is one of the best looking cars ever made by BMW. Obviously looks are subjective, but I would not go for a pre LCI model myself if I could afford it... Short of a full-on M5 the G30 540i xdrive LCI with 846M wheels is a dream car for me.

[@blacktalonsport1262]

Nice video...when can we get one on the Supra's B58?

[@NoBrainerTalk]

Trying to organise something...

[@hektr19]

A video explaining the Supra b58 would be cool

[@pizzastank1695]

I believe the m340i has the Supra engine which is the b58tu

[@BradleySevenfold]

I’ve obviously just subscribed for how well done this video is, but I am just wondering when people swap a 1st gen fuel pump out for a TU pump, should they change the injectors too?

[@NoBrainerTalk]

I wondered the exact same thing, and did endless research. I could not find much evidence of people having issues and needing to replace the injectors at the same time as the pump. So eventually I just replaced the HPFP with the B58TU equivalent without replacing the injectors. I guess as so many people are running upgraded HPFP with stock injectors, they can cope with the increased pressure. The B58TU injectors also have different spray pattern for efficiency gains, and I want that too. In the future, I might buy one, and test fit it to my 1st gen B58 and if it works OK then maybe change the other 5. But for now, running a stage 2+ tune with the B58TU pump and stock injectors, like many others...

[@BradleySevenfold]

@@NoBrainerTalk I wonder if it’d be worth getting the Port injection kit, using the 6 standard injectors for the port injection and the TU injectors to use in the place of the standard ones so you get the better spray pattern alongside the benefit of having a port injection system alongside. Just my thoughts not saying you should do it, totally depends on what your plans are for your car buddy. But I think that’d be a cool idea in my opinion, glad to see I’m not the only one who thought that about the pump and injectors though, thank you for all your hard work and making an easy to understand video too, I don’t currently own a B58 but providing nothing gets in my way I am thinking about getting an M240i next January 🤘🏻

[@NoBrainerTalk]

@@BradleySevenfold Actually the B58TU2 does feature from factory, port injection with low pressure fuel injectors prior to the high pressure direct fuel injectors. It's absolutely doable on the 1st gen B58 too, and I'm going to bet also on B58TU1. These port fuel injectors and new fuel rail are tiny however, the "old" direct injection ones wouldn't be easy to install in the space between the intercooler and the cylinder intakes.

[@TpriestJr]

@@NoBrainerTalk which bmw do you personally own with the b58? I am deciding between the 540i or 550. Trying to get a 2018 and up but would order 2020 models and up if I can find one in my price range

[@NoBrainerTalk]

@@TpriestJr I own a 2018 M140i (1st Gen B58 and without PPF/OPF).

[@xIcarus227]

2:29 Small correction: seems like the B58B30C is used in the Z4 as well, I have one with this exact engine code. Model year 2021. This video is 2 years old, so perhaps this is something which has changed over time.

[@NoBrainerTalk]

Yes, this is possible in different markets. Are you in the EU/Europe? Then the Z4 will have the B58B30C. If you are in a country not subject to EU emissions regulations (like USA), then it's most likely the B58B30B.

[@xIcarus227]

@@NoBrainerTalk spot on, I'm in Europe.

[@Dzind0bree01]

Very nice and informative video! I got a 1st gen b58 in my 540i xdrive, with stage 2, and I am looking to gain a bit more power and if possible efficiency, by changing some parts from a b58 tu, what would you recommend?

[@NoBrainerTalk]

The common route taken for just abit more power is installing the B58TU high pressure fuel pump.

[@keithw4920]

Question. Does the B58 use piston oil squirters?

[@NoBrainerTalk]

Yes, there are six oil spraying nozzles (one for each cylinder). If you want to see what they look like, Google the P/N: 11427634186

[@zZVibes]

I’m so curious, Did Toyota help redesign the b58Tu1???? For the Supra and the other cars

[@NoBrainerTalk]

There seems to be a general understanding that Toyota and BMW engineers worked on the project together. The level of involvement of Toyota is unclear and there is some confusing information in terms of whether the B58TU engines installed in the Supra and slightly modified by Toyota.

[@kozabuilds]

What year 340i has the high power version?

[@NoBrainerTalk]

I believe 2019 onwards.

[@Lse380]

Thanks

[@ARDEN440i]

So if I'm correct, the M140i and M240i produce slightly more power than the 340i and 440i, not because of slight tweaks to the engine, but due to mapping done by BMW, correct? That's the theory I'm going by since they share the exact same engine

[@NoBrainerTalk]

Hi, indeed the early 340i and 440i with 1st Gen B58 produced slightly less power than M140i and M240i, but those 340i and 440i produced slightly more power than M140i and M240i with the M Performance Power and Sound Kit. As all of those have the same B58B30M0 engine, we can reasonably say the differences in engine output are down to tuning. We can only guess what the reasons were for BMW choosing to vary the engine output by relatively small amounts across the range.

[@ARDEN440i]

@@NoBrainerTalk Thanks for the quick response and explanation 👍🏾

[@ipstevieb]

I have a G42 M240i on order. Can I assume it has the TU?

[@NoBrainerTalk]

Yes it does! I saw one yesterday up-close for the first time and it looks fantastic.

[@leosgarage2417]

I just got a 2018 340i. What B58 does it come with?

[@NoBrainerTalk]

Should be 1st Gen (B58B30M0).

[@juliomorel342]

Correct me if I am wrong 2020 Supra used B5B30C while the 2021 currently uses the B58M30O1 variant

[@NoBrainerTalk]

The Supra's original engine was most likely a variant of the B58B30M1 (looking at the turbo) whereas it's possible the 2021 Supra will have an engine based on the B58B30O1. The easiest way is to see the turbo fitted, but the power output (382hp) is a good give-away aswell.

[@infowork1275]

Hi I've for a 2019 m240i what B58 do I have, regards

[@NoBrainerTalk]

Hi, you have a 1st Gen B58 (B58B30M0)

[@mapcoxog]

no wonder there is a "natural coolant loss" problem with this engine B58, i wonder if they addressed it in TU

[@NoBrainerTalk]

B58TU cooling system is slightly more complex, but the expansion tanks appear to be the same.

[@Ripperx121]

I have one question. Does it leak oil. I love my BMW's but man my E92 leaked oil badly.

[@NoBrainerTalk]

BMW B58 engines don't have oil leak issues, but the B58B30O1 is known to have higher oil consumption.

[@profuse007]

Is it possible that when Toyota came along in 2017-or-so, they comment on the 1st gen B58 causing BMW to modify it only after a yr of use?

[@NoBrainerTalk]

There's several years between the 1st Gen and the B58TU, and already there is a B58TU2 coming out soon. The driver is predominantly changing regulations, but that's not to say that the development teams would otherwise sit idle and not find ways to improve the design anyway. It is accepted that Toyota has been involved in the B58TU development, so perhaps the design has benefited from Toyota engineering input. But we can't know if Toyota helped the BMW engineers just meet the regulations or if they helped improve the design beyond that.

[@profuse007]

Based on this video and others, the change from B58 to B58TU is very drastic and was not subtle at all. They went from single timing chain in N55 to two chains via intermediate drive sprocket (to change timing) and back at single chain in terms of a yr span (or less). And I don’t think the change was done overnight either and correct me if I’m wrong nearly 100% of the major components from B58 to TU have different part bin#. And the block is different, too, right?

[@NoBrainerTalk]

@@profuse007 You are correct, the changes between the B58TU and B58 are not minor. A quick comparison in realOEM shows few Part numbers are the same.

[@kpcjr415]

Which B58 would my 2017 340i GT be? I can’t find much information on my car 😅 mine is an American model 🇺🇸

[@NoBrainerTalk]

Hi there, it will be a 1st gen B58 (B58B30A aka B58B30M0).

[@emmanuelgonzalez8319]

Hey man! Love the video! I have a m340i which has the 2nd gen b58 but I want to move down to a 340i with the 1st gen b58 engine .. the reason I want to do this is because I want to make my bmw to a full on drag car ! If I sell my m340i I will have a lot of cash in my hands which means I’ll be able to dump a lot of money on the regular 340i much quicker , should I be patient and stick with the m340i and slowly mod that one? Or should I just go with the regular 340i and mod that one? Will they both give me similar power? I’m talking about 850whp+ , going internals and all dat, I want to hear your opinion ! And keep up the great work !

[@NoBrainerTalk]

Hi there, what an interesting question. To be honest I don't know. Here's what I think: Alot of the improvements made to the B58TU over the B58 have to do with emissions, not with performance. Having said that, the opportunity was taken with the B58TU to improve production standards (such as form honing, but also the more light-weight components) which means the engine has a few components which are lighter whilst being more robust, so have less inertia on the internal parts and technically can respond faster to changes in load. With enough money thrown at them both generations are capable of 850whp I believe. They are fundamentally the same engine, with about the same weakspots that need to be addressed to get that level of performance. If you look at what the guy did to get the supra engine to 1000hp (at the crank) you would fundamentally need to do the same things to both generations (new intake manifold, new cylinder head cover, new turbo, enhanced pistons, new ECU, etc). With economics taken into account, what you say kinda makes sense. Sell the brand new M340i and with the extra cash over the older 340i get the mods done. It would be a very interesting project. I know this isn't very helpful, hopefully someone with more expertise will see this question and give us their 2 cents.

[@emmanuelgonzalez8319]

@@NoBrainerTalk I get what u mean! Thank u sir!!

[@twinscrolled]

That pic at 0:58 is an N54, not an N55. Great video, thanks!

[@NoBrainerTalk]

Noted, you passed the test. :p

[@Davidwillchangeyou]

@@NoBrainerTalk so M3/M4 equip S58 not B58

[@NoBrainerTalk]

@@Davidwillchangeyou Yes, that's correct. And it's quite a different engine overall..

[@joshkey8930]

Was looking for this exact comment, not that it matters lol

[@MC-ez6lq]

I have the first gen B58, I love it!

[@Biggoyard]

American

[@boostedbavarian]

U tune it yet?

[@johnstonlee]

@@boostedbavarian I other half has a 240i why the hell would you want that to go any faster

[@boostedbavarian]

@@johnstonlee 😂😂😂😜

[@RandomGuy-ej9gr]

Does it still leak oil from the valve cover gasket?

[@NoBrainerTalk]

A number of B58s have experienced oil leaks from different places, including from the valve cover gasket. However as far as I know the issue is currently not affecting any significant number of engines so it cannot be said to be a design issue (or an expected issue for the engine design). It is possible that production assembly or country-specific environmental factors (for example) can lead to individual engines experiencing unusual issues. We cannot yet say for sure what oil leaks (if any) are a "typical issue" as the world fleet of engines continues to be relatively young at this phase, and the vast majority are running with zero oil leaks. Just my humble opinion. :)

[@sweetserenitysg732]

Doesn 2021 M340i with B58tu or b58 ?

[@NoBrainerTalk]

2021 Cars will have B58TU.

[@amaramin1009]

New charge pipe benefits?

[@NoBrainerTalk]

To be honest I don't know, but it looks to me like the new charge pipe was essentially only "flattened" (compared to the old one) due to reduced clearance with the fan assembly and engine radiator in cars that feature B58TU engine. I'm not sure if this is due to changing regulations or just improved "packaging." I do not think this change was done for the engine's benefit, but again I'm not sure.

[@bmva8263]

For me sounds the first gen will hold more power in the future since it has little bet more solid internals

[@NoBrainerTalk]

There was certainly some "downgrading" of capability for the B58B30M1 with the integrated exhaust manifold (the engine clearly favours faster warmup & lower emissions over performance and endurance), but I'm not quite sure if the 1st gen is more able to hold power than the B58B30O1. I think time will tell.

[@elliotthale1835]

Did the m140i not get the b58tu?

[@NoBrainerTalk]

No. M140i just has the good ol' standard B58.

[@luiso9237]

How do I know what engine my car has? M240i

[@NoBrainerTalk]

Hi, it's easy, unless it's the brand new M240i that just came out, then you have the B58B30M0 variant. Check out my other video where I describe B58B30A vs B58B30B vs B58B30C and you will be able to tell by yourself.

[@hartsickdisciple]

There are no substantial differences between the B58 in the Supra, versus those in BMW models. The 2020 A90 Supra used the B58, and the 2021+ A91 uses the B58TU. There are a lot of people on the internet (mostly Supra fanboys in denial the car is a BMW) saying they're different, but they're not.

[@NoBrainerTalk]

Yes, I do believe you are correct, although some of the specs given for the A90/A91 Supra by Toyota (e.g. compression ratio) appears to contradict this. But I personally believe there is misinformation/errors, and that they have exactly the same engines as BMWs.

[@zdoomcentral]

The 2020 uses a B58TU medium output 2 port engine and the 21+ got the high output 6 port version. No version of the Supra uses a Gen 1 B58

[@Mill-wk8xq]

Which engine is in the 23 m240?

[@NoBrainerTalk]

The B58B30O1 (aka B58B30B).

[@petercreagh8797]

I wonder how many of the changes are done with the intention of improving reliability rather than just lowering emissions and improving economy and power.

[@acz88]

The changes in exhaust turbo and coolant pressure management sounds like better reliability but everything else may not improve reliability. One big concern is the timing chain which requires the engine to be removed to gain access and I would think two chains would take less load and wear vs one chain. Higher pressure of fuel injection would also mean the fuel pumps would need to work harder. I think only time will tell lol but right now I’m more comfortable with 1st generation for reliability.

[@adnankaja472]

Bro you out n54 image when you showed the n55 engine at 58 seconds my man 🤣

[@adnankaja472]

The picture you used is on google labeled n55 2014 but that is a n54 10000000 percent 😂

[@NoBrainerTalk]

@@adnankaja472 You are absolutely right, I've been embarrassed since I posted the video... But it was too late to change it... It takes alot of work to make these, and I regret many things after I post them...

[@loickmk3abf]

And b58b30B ? I've this engine in my g20 40i

[@NoBrainerTalk]

B58B30B is the B58B30O1 with 382 hp.

[@josesanchez3327]

Pasted a n54 motor picture but called it the n55😬

[@NoBrainerTalk]

I know 😬 wish I could fix it...

[@dannysgameclips9384]

So the supra and the z4 don't have the same engine 🤔

[@NoBrainerTalk]

The 2020 Supra and G29 Z4 don't, but the 2021 Supra and Z4 do. Although there is some evidence to suggest that Toyota is modifying the engines after manufacture and so even though they currently have the same engine variant (B58B30O1), it might still be tweaked by Toyota (so even now not exactly the same as the Z4). There are no clear details.

[@rhodybimmers8094]

Can you over the Supra?

[@NoBrainerTalk]

I'll consider this for sure.

[@kushkid1900]

Why is the weaker b58tu in the heavier cars should be the other way around

[@NoBrainerTalk]

Interesting observation. I think it's abit complex. Not only related to emissions regulations but also what kind of drivers tend to buy each type of car and what other cars (from other manufacturers) BMW are competing with.

[@jza9252]

0:58 is an n54

[@NoBrainerTalk]

Well spotted, this will haunt me for the rest of my life.. :p

[@jayrains9538]

Dude you used an N54 picture for the N55!!!!!!

[@NoBrainerTalk]

I know!!!! :(

[@MrLegolasegal]

B58 ♥️

[@NoBrainerTalk]

B58 ♥️ indeed

[@cherifhamani4270]

Is b58 has a diesel engine

[@NoBrainerTalk]

The B57 is the diesel engine, the B58 is only a petrol engine.

[@cherifhamani4270]

@@NoBrainerTalk is the b57 very reliable as the b58 Because I heard that the b58 engine is made with Toyota motors

[@NoBrainerTalk]

@@cherifhamani4270 Hmmm, interesting question. I guess it depends on the version of the B57 (version with 1, 2 or 4 turbos). The more complicated the engine the more can go wrong I suppose. The B58TU gives its maximum power with one turbocharger, making it overall a simpler design at the upper power output (382hp vs 394hp of the B57 with 4 turbos). Increased complexity often results in lower reliability.

[@blindseerurza]

audio is way too muffled

[@NoBrainerTalk]

Noted. Hope you learned something anyway...

[@Tupeutla]

I own the old B58 , I am not very impressed by the new generation , it's more about ecology and other stuffs .... the biggest differences is 2 timing chains instead of one .. I preferer two IMHO

[@NoBrainerTalk]

I think most 1st gen B58 owners remain satisfied with the engine, and I doubt many owners (if any) would buy a new car just to get the 2nd gen B58. Time will tell how well the world fleet of engines ages. I guess with climate change we all have a responsibility to help the environment, so I can't fault BMW for trying to improve the engine to reduce its emissions (even if its just to adhere to stricter regulations). Keep in mind that less emissions generally means less fuel consumption, so again I can't say I would be against having to refuel less frequently. I think the 2nd gen is a good evolution of the 1st gen, but it's not such an improvement as to be a game changer. I'll stick to my 1st gen too.

[@bitvasconcelos2031]

you forgot m240i

[@NoBrainerTalk]

Go to 1:19, I mentioned M240i :)

[@bitvasconcelos2031]

@@NoBrainerTalk oh, I see, however I have a 2020 m240i as you mentioned that the medium version engine it was up to 2019. What about the 2020 m240i . Do I have the tu?

[@NoBrainerTalk]

@@bitvasconcelos2031 Hi there. :) I made a video explaining how to check your engine, link below: kzbin.info/www/bejne/oqipeWBrhcypbdE

[@cazantrabant519]

Its more like revision, not a generation

[@NoBrainerTalk]

Broadly the two terms mean the same thing, but yes the B58TU is essentially a revision of the original design.

[@cazantrabant519]

@@NoBrainerTalk i just got the f30 340i 6 speed manual xdrive and im going to do a remap. I hope it can hold 400hp and 580nm without any problems😁

[@NoBrainerTalk]

@@cazantrabant519 World experience is that generally B58/B58TU engines can produce 400hp / 580nm comfortably and without any significant issues.

[@cazantrabant519]

@@NoBrainerTalk im a bit worry of the transmision cuz its the 6 speed manual, hope it can hold 580nm

[@blackdonut_games5116]

First version is better

[@llkjjjss]

So basically no difference

[@NoBrainerTalk]

Hehehe...

[@boostedbavarian]

Pretty much just hpfp n tuning. So yes same shit.

[@llkjjjss]

@@boostedbavarian just ordered a tu pump for my 340

[@boostedbavarian]

@@llkjjjss u goin corn or what?

[@llkjjjss]

@@boostedbavarian trying to get ready. I've back ordered a vargas cg turbo. I would really like to run meth but right now they don't have a good port injection solution that I've found.

[@KristjanS-Kristeh]

Supra has the 1st version original B58... There is no special version for the Supra...

[@grgadgo1307]

Basically the first gen is better.

[@NoBrainerTalk]

In some ways yes, in some ways no...

[@thomasstorrs6345]

Maybe bmw can learn something from toyota in that building reliable engines is important.

[@acz88]

They have which is why Toyota is buying engines from BMW.

[@TheYoungAze]

what you talking about if anything toyota better learn something from BMW lmao why you think toyota has a BMW ENGINE IN THE SUPRA LMFAO. B58 engine is reliable so idk what you talking about

[@TheYoungAze]

@@acz88 toyota is learning from bmw bruh bc that supra is a whole ass BMW lol