I Found The Best Kept Secret In BMW Engines!

Welcome to a thrilling deep-dive into the heart of BMW engines! In this video, we uncover the best-kept secret of BMW engines, challenging conventional wisdom and redefining car performance. Join me as we journey from the naturally aspirated N52, through the turbocharged N20 and B48, right up to the exceptional B58.
If you're interested in the turbo and downpipe that I mention in this video you can find it here (affiliate):
The turbo is from IPOS and it's called the IM450, link here bit.ly/43Gn6jV and the downpipe is here bit.ly/3JgU3va
We unravel the transformation BMW underwent in engine development, and how they learned from past failures to produce engines that are not only powerful but also efficient and surprisingly tunable. We'll answer intriguing questions - what if BMW knew from the beginning that the engine architecture was going to be turbocharged? How did this foresight transform the design of the B58 and B48 engines?
Watch me as I upgrade the turbo on my B48, aiming for a whopping 360 wheel horsepower with just 91octane, and making this G20 330i nearly as fast as a G80 M3, all while keeping the engine untouched. This engine has more to offer, and I’ll push the limits, even reaching over 400 wheel horsepower with E50. Could it get any better? Well, stay tuned for a potential run at 450 wheel horsepower with port injection in the future.
Who knew you could own a B48 powered BMW that's lighter, faster, and more fuel-efficient than its expensive counterparts? It's about time we let this well-kept secret out!
If you enjoy getting up to speed with the ins and outs of engine performance, don't forget to like this video, share it with your fellow car enthusiasts, and subscribe to my channel for more exciting content. Enjoy the ride!
Thanks for watching, if this is the first video you're seeing of mine consider subscribing. I upload regularly. When you see the word "affiliate" listed beside any link in my description please know that this is a custom link and I will earn a small commission if you opt to purchase using said link. This is at no extra cost to you so it's a win all around :) Thank you!

[@chrispetty5058]

The only failure I’ve seen to the balance shaft was from a customer over revving to 9k. The idler sprocket wobbled off the bearing and broke through the side of the block. The rod bearings were in good shape.

[@VehicularDIY]

Good to know, thanks

[@mike_oe]

How is it possible to rev to 9000rpm??? The rev limiter should prevent that. Only way to do that would be downshifting a manual in the extreme, but there are not many manuals left, if any with the later engines.

[@davewallace9048]

This is what’s sets you apart from a lot of KZbinrs.. your knowledge is like any other!! Great inside info!!

[@VehicularDIY]

Thank you!

[@shotty.]

with what you & others like Kern417 are doing for the community is massive. THESE are the things that got me into these cars… cannot wait to see 4 pots shaking up the game 😳

[@potatochobit]

B series engines changed my mind about how unreliable bmw was.

[@tommerlin6579]

BMW M engines in 80-2000 were BEST engines in reliebility

[@evildrizzt1]

@@tommerlin6579 They were practically bulletproof. Once management changed hands it was more like ‘We need these things to fall apart exactly at 100k miles’.

[@pedrorodrigueztube]

Are you saying B48 is reliable?

[@mperez9745]

No such thing as a unreliable bmw engine, it's called unreliable owners.

[@andrej8365]

I think it's because B58 was in development with toyota (supra) that's why B series is ok now days

[@aztecvspec002]

Glad I found this video! I have a G42 230iX and so far not many channels have touched on modding the B48. The B48 in the Minis get love but not so much on the BMW side. Def looking forward to following your build.

[@workwithjp170]

Just want to say that I just recently bought my first bmw , a 335i e92, and I found it has a ton of issues (after buying, of course) and the dealership quoted me $14k+ to get it running well again. I’ve been binging your videos to help educate myself to do the work at home and they have been super helpful. Thanks for putting so much effort into them 🙏

[@VehicularDIY]

Glad to help, that's why I do this. Thanks for watching.

[@LucidLoki]

Definitely want to do a complete cooling system refresh.

[@BozoBlaster12]

A LOT of routine maintenance, I'm gearing up to do a valve cleaning here when I find the time, oil blow by gets into the intake tract and creates carbon build up inside the intake valves choking off air flow to the engine. I took the manifold off and LOTS of carbon crud on the walls and valves themselves, an upgraded PCV valve and oil catch can should alleviate the build up but it still needs to be cleaned.

[@teekay_1]

I thought the secret was that they all end up leaking oil.

[@BozoBlaster12]

They do, the oil filter housing gasket will eventually fail, leaking oil down the front and drivers side of the engine, oil will get on the serpentine belt and over time saturating the oil and stretching the belt which can then result in it slipping making awful belt squeaking and then it can slip out and get wedged in between your harmonic balancer and push its way back the front main seal I to the oil pan, and if your lucky the power steering pulley might hit the subframe from hitting a pothole and breaking the guides for the pulley and can shred the softened belt up like it did to me! Which can also push pieces instead of the whole belt into the front main seal. It's a plastic pulley like everything else so I replaced with an aluminum pulley. If you don't replace the gasket this can all happen and lead to catastrophic engine failure.

[@krisjaniszalkalns2461]

I just get b48 but 420i gran coupe Will follow this guy and see what we can do with b48

[@Credman1883]

I think you are starting to touch on a lot of really good points for modern internal combustion engines

[@CommentLikeDescribe]

I can almost change the oil on my 2013 Ford Fiesta and you make me feel like I can change an N54 injector, electric water pump and/or oil filter housing gasket in about 6 minutes. Thanks for your awesome videos.

[@postalpancho]

Just found your channel and instantly subscribed. I love when people actually know what the fuck they are talking about. You sound very competent and experienced, unlike the majority of clout chasing youtubers who can barely change the oil. You don't need an M2, m3 or m4, this is something I've been saying for a while now. I've been tracking my 230i and absolutely dominating with my b48 engine. I was skeptical about the power at first but it is more than adequate. Glad I got a b48 because the handling characteristics from the lighter front end is better than a MX5, and GR86. It is that good!

[@VehicularDIY]

Thanks for subbing! There are two places where even stock it impresses me, sometimes if you hit the torque just right at around 20 mph it'll put you back and from 80 to 100 mph it really moves. Might be going into an over boost. The lighter front end really sets it apart, the G80 M3 had an amazing front end but you could still feel the weight. The M340i felt clumsy at times, if you get it wrong that back end would want to swing around quick.

[@mrmusic1880]

Yay, I was wondering where you were! Can't wait to watch this one! Do you mind me asking, what happened to that first 328i Modern Line flip car you bought? Did you do the M Sport conversion and sell it?

[@VehicularDIY]

Yeah I traded it in actually toward the 440i that I was driving for almost 2 years. I never M Sport converted it as the vendor ghosted me after reaching out.

[@mrmusic1880]

@@VehicularDIY Thanks for the response! Some weird people out there, I always get ghosted when buying phones!

[@Icebarbed]

I have the same spec on my G20 330i, did a downpipe and BM3 stage 2 on it. Only getting around 300hp. Can’t wait to see you to finish your project, I would like to see if it’s possible to make this B48 engine go crazy.

[@Itschaboylamari]

What other mods do you have for stage 2?

[@Icebarbed]

Just a VSRF downpipe and intake @@Itschaboylamari

[@tuurbow]

This is why I follow this channel. Great info.

[@JCGonzaYT]

Bro this is a super informative video and you answered every single question that I had. I have this same car b48 2019. I was debating whether or not to do mods on it because there was very little information on this engine. If I can drive this car safely with 400 ish hp daily I'm happy. Thanks for the video

[@VehicularDIY]

Thanks for watching!

[@JCGonzaYT]

Waiting on the update on this video! I want to see some progress 🙏

[@lowk3ychris484]

As a last gen F30 328i owner right before they introduced the B48 and 330i name (again). I always wondered why there was no major performance parts for the 328i. Other than those early N20s having that timing chain failure looming overhead the final year of the 328i was the N26, still open deck etc but no timing chain issues, and some other throw ins for reliability/efficiency. For the 4 cylinder community this is one of the few vehicles that has a longitudinally mounted engine that sits behind the front axle. It’s such a fun car to drive and handles great. Compared to some of the understeery fwd “fun” vehicles. Plus I agree with your take on the pricing of the 330i and M340i. It’s tough to find a low mileage example of the M340 for under 45k. Meanwhile I bought my 2016 in 2019 with 16k miles (spotless carfax) for 25k. BMWs are BMWs and they’ll still do BMW shit but my car has been reliable since I’ve owned it. Tires, oil change, and brake fluid change and bleed is the only maintenance I’ve had done but I am just hitting 56k miles.

[@radiantav]

As the owner of 2019 430i which uses B48 engine, I will be closely following your videos.

[@ratedm90]

Did you do a bigger turbo upgrade?

[@BMW1M]

Even in the F30 series, the N20 powered 328i's handled and steered noticeably better than the N55 335i's. So I totally get it. 400whp for a daily driver with good FE, and a great chassis is all I'll ever need. Following!

[@WholesaleTurbos]

I guess it would depend on spec too, dads f30 328 doesnt feel that great in the mountains but mums e46 while not as powerful had the factory m suspension which deals with it much better

[@Funded...]

The amount of knowledge regarding the b48 engine is insane - BMW 330i are a fantastic value

[@philipgrobler7253]

8:54 Dang, this engine looks like a person on life support, such a busy engine bay!!! This is why I absolutely still LOVE my E30!

[@pollo.888]

f30 LCI has been on my radar with either the 8 speed or manual. 330i seems like a fun platform.

[@VehicularDIY]

would be interesting to see what trans comes with the manual option, I know the manual they put with the N20 wasn't strong but the auto was.

[@ggriffiths99]

@@VehicularDIY According to FCP Euro it comes with a GS6-17EG from ZF. I have a 2018 with a B48 (B46) and that transmission, so I'll be watching for more on this build process.

[@phillm156]

I’ve had many cars but German cars have defined the definition of leaky! From valve covers, intake gaskets, oil filter housing, oil level sensor, oils pans, coolant brackets, reservoirs…From my 2009 M156 E63 Amg, 2017 Audi SQ5, 2021 Bmw M340i. One car that still have no leaks? My 2005 Toyota Camry V6 150k miles.

[@eedut]

M42 is crazy strong engine if you swap studs, put stronger rods and pistons. 500-600hp when turbo charged from 90s inline 4

[@bimmerlife5452]

Even pushing more boost on B48 is awesome engine with down pipe g42 230i M sport with tune ajb4 and cold intake feels so much difference you can really feel it engine is tq happy

[@dinosoarmotorsports]

I agree the 4-cylinder BMWs are way overlooked...everyone wants power and xDrive, so M340s and M cars make sense for them. But you lay out a great argument for modding a B48 car and you'd have a lighter car, and better turn-in too...imagine a great handing BMW! I have a 2022 230i M Sport and am excited to get even 300 RWHP, but maybe an easy 350+ would do me even better. Great video, thanks! I'll be watching all your upgrades.

[@monkeywentbananas]

Great information brother! Your coverage of the engine internals was awesome!

[@stephennelson624]

That’s the same balance shaft/ crank architecture as the diesel N47 4 cylinder, exactly. Great video

[@VehicularDIY]

Yeah I plan on covering how the B series engines were derived from the diesel engines in the future.

[@309gti8]

I can’t thank you enough for such an informative video. I wouldn’t be modifying this, just curious about the reliability as a daily driver for years to come. I’m concerned about the timing components being at the rear, but I do feel better now knowing that the balance shaft is gear-driven. I believe these have 3 water pumps, which also seems a little concerning for long-term reliability, but on the other hand, it’s good to see cooling is a priority.

[@bmwlane8834]

Love this engine....my 430i gran coupe....m sport. I had no idea I would love this car as much as I do. It handles so well....and I've had 500 mile days...(work car) and didn't feel worn out.

[@igotaction]

Main caps are the main weakness in the B46/48. They should be 4 bolt per cap and extend the width of the block to aid in crankcase rigidity.

[@VehicularDIY]

I'm wondering if they count on the rigidity coming from the fact that the bottom of the block in externally thick due to needing to house the balance shafts. Also the main cap design looks the same on the B58, correct me if I'm wrong.

[@CFG39]

The B38, B48 and B58 are all great engines. The B38 never got the high output version I wish they’d offered for the MINI line. A MCS with a 250HP version of the 1.5T I3 would’ve been such an exciting little engine. Shoot it would’ve made a decent entry level engine for the X1/X2, or even a 3-series, especially with a manual transmission.

[@DjNikGnashers]

Fascinating video, and I work in the motor trade myself. I have owned many BMW's, and currently own an M140i with it's amazing B58. It's sensibly tuned to 455bhp/634nm as it's a daily driver, but I have a lot of confidence in it's reliability at that state of tune. I have always had 6 cylinder petrol engines, a particular favourite was the M52 in my E36 328i, as BMW have always made great straight sizes. I did have one 4 cylinder diesel but the reliable M47 engine.

[@peterbustin2683]

Absolutely fascinating! Subbed!

[@laworder2652]

Such a good video!! Love it. I'm an engineer and just listening to this just makes me feel all nice inside lol.

[@randfort_]

Hey man listening to you speak I feel confident I can handle whatever BMW engines can throw at us. Great video I subscribed 😂

[@pugs1377]

This will be fun.

[@phoenixosprey7455]

The balance shafts in B48 are 1:1 from N47 diesel engines. The same concept.

[@justindaniel5959]

The VAG engines just seems much easier to get good reliable power. BMW 4 cylinders seems to be very sensitive. So people don’t really touch them. You can see it from the tuning world too. They all focused on the B58. My B48 has a new turbo replaced at 20 000 miles, leaking oil..others running MHD or Bootmod have over fuelling issues on piston 4 which blows engine. Good Luck, I am subscribed . to see more!

[@ckegman6103]

Glad to see you back. Missed your content.

[@951Guy]

Really good and informative content, thanks!

[@lamboferruccio]

Oh hell yes I’ve been waiting for this!

[@krezka294]

Quality Content bro! - Jercy :)

[@RS-of1om]

B48TU swapped into E30 chassis would be great.

[@bearchow1929]

I bought a BMW in 1973. It helped me to quickly outgrow them.

[@Magic4599]

But have you tried an N52 , or K100 .

[@ericfan1223]

b48 supra here, love this car

[@ericfan1223]

except no lsd

[@f.j.l.4503]

Hello from Spain! Big BMW lover here. Your explanation and understanding of this platform is incredible. Thank you for sharing your knowledge. About the b48, which particular model would you recommend? B48B20B it’s the most tunable for g20. You agree?. There are many variations and I find it hard to understand the right one. Looking in particular for manual models. Could you give your point of view about engine codes and in what models it can be found? Thank you. Gracias!

[@bmwlane8834]

Great info on the balance shafts. I learn a lot every time I watch your videos.

[@davidryans2232]

Your videos are amazing - keep up the great work!

[@Squilliam-Fancyson]

on the N13 BMW just skipped the balancing shaft altogether. What rly is crazy are the high compression ratios BMW goes with on the N20, N13 and other direct injected open deck engines. 10,5:1 was once a good compression ratio for a n.a. engine.

[@yearight6294]

man im excited to see more from this engine/car . i miss my e90 and e92 so much im looking into buying of these asap.

[@mazalex2556]

just discovered your channel and its got me hooked. I watched your b48 build with the turbo just before and was surprised. I recently got a F30 330I and I love it so its nice to see someone work on one of these! Is the G20 330i a lot different to the F30?

[@VehicularDIY]

In terms of the engine they are very similar, almost identical. As far as how they drive very different.

[@mazalex2556]

@@VehicularDIYahh I came from a 1.4 litre na Vauxhall corsa so big difference for me in terms of driving dynamics. Is the g series equipped with better handling and suspension set up, better bracing etc

[@morganlingsweiler9813]

I've been following your channel since the n54 335i content you would post back years ago. It helped tremendously when I had a N54 535i. Especially when I was doing the ZF transmission filter and mechatronics sleeve replacement. Getting that sleeve back in was ridiculous. Its awesome to come across some of your videos now when looking into BMW's 4 cylinders. I'm kicking myself for giving up on finding an x3 m40i (b58 suv) and going with a b9 Audi S4 (sedan lol). BMW dealerships were all asking on the high end/over KBB value on the X3's. The Audi was cheaper but the v6 "hot turbo v" 3.0 engine in the Audi is making me nervous. I'm looking to get back into a BMW soon because the insurance cost for the S4 is ridiculous. I've been looking at the 4 cylinder wagons, and hope insurance is cheaper for them. Thanks for what you do, and I'm excited to see future stuff on the b48!

[@mikimiki195]

Great video Thank you 👍🏻

[@othmane645]

Great informations! But why Bmw reinforced the crankshaft and lowered the compression ratio for the 306hp version of the B48?

[@mr.sauvage330]

Got my all hyped up, and i don't even own one. Really cool, informative video, giving me ideas for the future. (Currently owning a mk7.5 Golf GTI, would be nice to own a RWD BMW one day)

[@davec5237]

Great information. Thanks for sharing. 👍

[@trullmann]

Okay now I'm impressed with this little four banger and currently looking for an x3 with this motor. What year should I be looking at and what is needed to get me to that 360-380WHP?

[@NardoGreyRam]

Great Video, thank you Does the F30 330i with b48 engine have the same tuning potential?

[@VehicularDIY]

Yes just needs the fueling system upgraded where the G20 has a stronger fuel system for emissions compliance.

[@6ixvamp]

This was extremely informative. I learned a lot from this, thank you 🙏🏾

[@DuckMcDuckinson]

Yeah man on my F32 2015 428i I’m starting to hear a very very faint humming whirr when I drive off a stop. That new oil guide and chain design is a nice easy small fix up for that oil chain whirr because of the design of a 4 cylinder turbo but mainly, bad design out of the factory.

[@VehicularDIY]

Yeah you'd want to upgrade if you've past 80K miles for good measure if you haven't.

[@DuckMcDuckinson]

@@VehicularDIY I’m at 93k lol 😂 it’s still under warranty but me and my friend can change the timing assembly if they don’t wanna warranty it for safety sake.

[@wasing02]

I believe BMW upgraded the timing chain assembly in 2015. Did you ever change yours out? If so, was there any damage or wear?

[@apuedinson]

Great video. I want to see what would you do with this platform.

[@Nebo600]

Damn I have a N20. I originally thought that since it was lighter than the N52, I would modify it and be happy. That was before I herd about the issues with the the engine. 🤦🏾‍♂️🤷🏾‍♂️

[@gojorowhoo496]

You just convinced me that my N20 is a ticking time bomb

[@TheZooness]

I have the same sentiment of a 4 cylinder's placement in a BMW. Having both the 1.9 z3 and 3.0, there was a night a day difference in how the car turns in and feels. I wish I had a cheap legal 4 cyl swap alternative for my coupe.

[@angelofrederic]

great vid. I'm a N20 guy.

[@skillz1855]

I have a 2013 F30 N20 with more boost and I have 206k on the original chains no noise of oil usage

[@VehicularDIY]

I have seen them last longer but only when the oil was changed religiously with high quality oil. I mean so frequent that the engine would look silver and brand new inside after 150K miles. If you've made it to 200K and she's going strong I would just do the chain for piece of mind. You can do it for under $200 if you do the work yourself.

[@JackofAllTradeaz]

Congratulations on making it last that long! Do you live in a cold climate And what engine oil do you use? Thanks

[@JackofAllTradeaz]

@@VehicularDIY Hey Musa, for someone living up north where the temperature goes down to -10C (14F) in winter, and driving frequent short trips, which oil would be best for the N20? Thanks!

[@Hofmeister_Kink]

Super informative, thank you!

[@mechanicdudevlog8788]

Its the fuel economy and power reliability. Cant beat it man. 400hp is way more than enough for street car

[@tgshark1]

Theres a guy on youtube here thats pushing an n20 to 400hp dyno with stock engine...im not sure how long it will last but thought id put that out there as he states people underestimate the n20

[@ALEXNERI3]

I am a new subscriber and simply want to praise you for the informative and helpful content of your videos. I came across a video of yours from approx 5 years ago titled long cranks on your E90 if i recall correctly. After beginning my research on an issue with cold cranks on my 2007 328i. I am thinking it could possibly be the fuel pressure regulator.

[@VehicularDIY]

Thanks for subbing and for the kind words! Yeah it's one of the first places to start on a long crank. If its got over 100k miles might want to just replace it for maintenance anyway.

[@ALEXNERI3]

@@VehicularDIY Yes sir, thanks.

[@erickmendeznegron]

Whats your opinion on the JCW/m235gc b48. From my understanding, the crank is stronger, has stronger rods and pistons along with slightly lower comp and a bigger turbo. I know they run a lot of boost stock, but what kind of upper end would you think those would handle?

[@marioauer2779]

i had a n54 now daily a b48 5 series and ben upgrading it and noticed its stronger then i then i expected

[@fredfred9758]

This platorm is limited by the head and you will need a custom tune to go past where others have in 2022. There is a b48 car in my country that runs north of 500whp with Racefuel and Nitrous

[@VehicularDIY]

I've heard the same for the S58, all these modern engines chasing emissions seem to have optimized heads which eventually become a bottle neck. I think at 450 WHP max we should be good on the B48.

[@fredfred9758]

@@VehicularDIY A lot have reached the limitations of porting the head already. Valve spring and cam tuning is the only options after that along with playing around with the engine rod stroke ratio. This engine has potential but nothing compared to the others . May see max 900whp on a totally custom build including sleeves which are available currently. To be honest a B58 will always take it after the 60 foot. The theory you're working with does not take into consideration the power a B58 makes in the upper rpm compared to the tuned 4 cylinders. Yes the 4 cylinder is lighter makes similar power but in the real world after the 60foot marker that 6 cylinder is now truly coming online

[@brankokoic1219]

Fantastic video. Thanks!

[@aarondostou3888]

Great content.

[@TheGbizaille]

Very excited for this one

[@vargasaidan7366]

great video :)

[@ThePandasian34]

People that have the B48 are road racers that car more about lightweight and overall vehicle balance.

[@federicotorresbordils7624]

Yes of course the N54 was a twin turbo open deck designed from the NA's engines followed by N55 twin scroll turbo. The reason of the stenghness of theese new B engines is that they are MODULAR engines, that followed the N series and those followed the M family series B engines are modular and this means that both Diesel and Gasoline engines have exactly the same block, in this case the fuel engines take the advantages from diesel ones that need usually closed decks due to the higher tork delivery vey high R.C. and vibrations so is a economy of scale for any BMW engine block will be diesel or fuel depending on the sale order. This is why BMW engines are now stronger than ever specially gasoline fueled ones. From 10.5 R.C. premium gas is a must to avoid preignition and engine health although the have all ignition, timing and valve managements. BimmerN53

[@VehicularDIY]

Yeah this could be another angle for a follow up video, how did the M57 engine influence the B58s design as they could look at their diesel engines for inspiration when they were going all in on gas powered direct injection turbo engines.

[@duhanemcgregor6596]

Great content 👌🏽

[@sbeezynukka]

I’m driving a 330i while my 540i is in the shop and I love the b48. Very peppy! Car feels like a smaller g30! Makes me wish I would’ve went for an m340i instead of another G30

[@VehicularDIY]

Yeah the G20s are close to what the old 5 series use to be in size.

[@sbeezynukka]

@@VehicularDIY now that you say that it’s hella facts! I forgot how much cars have grown over the years!

[@juancarlosathome101]

Hey there Musa! I wanted to reach out once again to you my good sir to see if you'd be willing to connect. Not sure if you'd had the chance to read the email I sent to you a couple of weeks ago... It would be a privilege to hear back from you there sir! I can only imagine both how busy you are and with that the value of your time-I give you my word that under no circumstances do I intend on misusing it. 🙂 Just to reiterate, I'm not looking to sell anything to you, nor spam you at all! As always, the best BMW stuff on the webverse! 😁 Thank you for all you do! I hope to hear from you soon!

[@VehicularDIY]

Hi Juan, yes my apologies I did verify that you had sent an email and will go through it. It was a little long to read when I had first seen it come through. I'll dig it up and get back to you shortly.

[@juancarlosathome101]

@@VehicularDIY Wonderful to hear back from you! Yes sir, I know it was a bit of a novel! 😅 I was worried that I'd put you off because of that, but I wanted to give as much detail as I could, though it's still only scratching the surface... And of course I wanted to make sure I proved I wasn't a spammer! 😁 I'd love to hear back from you when you are able-to help with the digging, I sent it 4/27/2023. Thank you so much man!

[@mattsedcandmore.1290]

Running the b48 in my mini cooper s.not sure but guys in the group are only getting 365 to 400 before rod goes.

[@leosam6824]

Nice video! Very informative! Would you be interested in doing a k swap video into a e90 or f30 chassis?

[@VehicularDIY]

Thanks! I didn't know that was a thing, can you link me to anyone else doing it?

[@leosam6824]

@@VehicularDIY You would be the first if you consider doing that swap

[@Starscream8896]

Going to get an im450 turbo for my b48 soon

[@VehicularDIY]

That makes two of us.

[@Starscream8896]

@@VehicularDIYnice! Who’s gonna tune it for you?

[@friguy4444]

As always you're awesome!!

[@DontPanicDear]

Engines have Bhp. Saying ‘wheel’ is confusing as it means only for this chassis, and this gearbox on that exact car.

[@jurgenhaagen360]

What about the b48 in the 235i mine got 306 hp and 450 nm stock the pistons and crank should be different

[@realitycheck469]

Sorry I posted this under the wrong video: Great video and a new subscriber here. Question: I have a 2022 Supra 2.0 with the B46/48. Would adding the JB+ ( not JB4) require that I upgrade any part of the engine as it adds 20-30hp and torque? Thank you!

[@PolKsio]

Hi you think the better handling is due to the b48 platform being more rear biased?

[@danto.dwinanto]

14:10 so IPOS IM450 can’t be installed to B48 320i since it has 11:1 compression?

[@realityspirit2370]

13:47 all good but b48 does NOT share the same rods as b58, the stock rods of b48 wont hold the horses for long. Also the N20 was not the first 4 cyl direct injection engine, it was the N43.

[@VehicularDIY]

The part number for the B58 rods is 11248623419, only comes in a set of 6 and the part number for the B48 is 11248623418 and it comes in a set of 4. The only reason the part number is one digit off is due to the quantity of rods you get. You can punch those part numbers in on google to see they are identical. Also the N43 is not turbo charged, I had mentioned that the N20 was the first direct injection turbo charged engine. Otherwise BMW was making turbo 4-cylinder engines in the late 60s in the 2002 ti.

[@realityspirit2370]

@@VehicularDIY did you compare both conrods physically Musa?

[@dhjhi]

Awesome explanation and analysis. Does any of the BMW X3 SUV have any of these engine?

[@Hernjona]

i thought the main reason the b58/b48 was cosed deck and built stong was cause they borrowed the block of the diesel engine

[@VehicularDIY]

That is true as well, I’ll cover that in a future video when I take a look at Joel from Rolley Motorsports M57 build.

[@Hernjona]

@@VehicularDIY sweet awesome!

[@giuseppesantangeli6813]

Thank you for the video. Is the Limited slip differential offered as a stand alone package or is it bundled in any other package?

[@VehicularDIY]

It was a stand alone option on m sport cars as far as I know.

[@kjell9745]

Is the engine on a 330e LCI an TU version? as it says the B48b20A on the paper... so still the weak pistons I suppose...

[@PacificoAllDay]

Does anyone know if the G30 2019 530i also has the same B46? Or did they make drastic changes?

[@OrjonZ]

Cant wait to get a B58 340i.

[@shmerd1]

Good explanation.

[@veronicabaddie3596]

*13:10** 4G63* ❤❤❤❤❤❤❤❤❤

[@Oplix]

B48 legendary tier