B58 vs S58: Which BMW Engine Is The Best? | Power, Performance & Reliability

[@jayjesuswake3140]

This aint a debate ..s58 is literally a b58 on steroids

[@coffeeemate6741]

Yet there's tons of healthy 7s B58 and only one crashed 7s s58 😂

[@IzzyE9X]

Steroid use causes long term health and reliability issues, so we shall see over the long run. It’s an absolutely amazing engine from the factory though

[@qbccc]

@@coffeeemate6741b58 was out way before s58, s58 can do anything what a b58 can stop coping

[@kevin-jm3qb]

Ur rods are not on steroids kek

[@SrtRacerBoy]

One of the biggest differences to most people buying these is the trans. The ZF8 is INCREDIBLY cheap to build for big power. The DCT S58's use isn't. (S58 does come with more capable turbos, and a better stock fuel system) And there are Far more b58's in the 7's/8's I'm not saying S58 is worse, I'm just saying its a trade-off

[@jimmyyeo3221]

I own B58 on my BMW M240i xdrive 2022. I love it 😅

[@coastalparasail]

Both are great but s58 is superb in my opinion

[@speeddemonRS3]

B58 is the perfect engine overall imo

[@torentmonkey]

The B58 is better at 2 things, better sound and better gas milage. For everything else s58 takes it. Hell, it makes 700whp on a downpipe and tune... b58's struggle to make 500 in that shape. You put the chassis reinforcement on top of that and you can see why it's a better package.

[@IzzyE9X]

This is great input

[@speeddemonRS3]

Guaranteed better reliability with B58😅

[@corporallozano9585]

I just can't over the fact that I'd have to be okay with not really getting to drive the vehicle. I love the style with the term "fishbowl" no tint and the sunroof open. The M lineup seem to all have a carbon roof. Someone make a S58 powered G series with a sunroof, to me the hardest flex out there

[@Boguardis]

an M car with a sunroof is stupid. Carbon roof is way better for handling.

[@I_am_Monty]

Amazing engines the 58's

[@matty665]

Great upload. And hats off to BMW for continuing their inline 6 engines. Unlike Toyota they can go SUCK IT!

[@Yhyujss]

£13,000 for a car with a b58 engine around £70,000 for a s58 value for money can’t beat the b58 of course s58 is better it’s a S engine bmw top of the line.

[@julionino3734]

This is not a debate. Stop it🤦🏻‍♂️

[@FluffyTherapeutics]

But it is… and you listened to it 😂

[@t-rex7796]

Stupid question and not worthy of discussion as it would be over after one sentence. “S58 is a B58 except with forged internals therefore a B58 could never be better because it’s the same except with weaker parts”.

[@coffeeemate6741]

Yet there's tons of healthy 7s B58 and only one crashed 7s s58 😂

[@thebeardedlifestyle5563]

Water pump failure and oil filter housing aren’t problems right lol

[@IzzyE9X]

This is common in basically all BMWs, not specific to the B58/S58.

[@Thatbluee9x]

Yeah these are issues a pretty much all BMW’s. I don’t know about early 2000’s BMW’s but I know from the n52/n54 onwards have always have those issues

[@Boguardis]

Those are pretty rare though,

[@Raygetplenty]

Wait is the b58 crank hub 2 pieces like the s55 ? That is a terrible design

[@IzzyE9X]

The B58 and S58 crankhub are the redesigned 1 piece. The S55 is 2 pieces

[@Bmwguy2011]

B58 surely would appear more reliable. I wish that both would come naturally aspirated though. Tired of turbos. The high pressure injectors are trouble prone.

[@stfu6397]

Porsche is the answer I'm afraid

[@IzzyE9X]

Agreed, turbos are loads of fun if you have your own garage/lift etc. for an enthusiast, NA is the way to go

[@Bmwguy2011]

@@stfu6397 any models in particular that you’re fond of? I’m looking eventually at trying to pick up the 996 turbo hardtop 6mt. Yes turbo. But this car was designed around the turbo. Even with a turbo I’m certain it has more organic driving experience than any BMW of today. My friend has a 2009 fully fully loaded panamera. it must be the most beautiful interior I’ve seen in a year or more. Spectacular.

[@danejdobersek9340]

No one will buy n/a.. go buy e46 330i🫣

[@laworder2652]

The biggest weakness in the s58 are its rods!! The b58tu has better rods then the s58. The s58 uses the notorious s63 rods then love to bend.

[@IzzyE9X]

From what I know without having technical manuals in front of me, it is the same part design and TQ/HP limits, but not the same part itself. I know Red Bull’s drifting team uses 2 900+HP S58 BMW M’s with no issues, however they’ve spent thousands building the engine

[@shoe3k]

This is false.....The S58 is a heavily modified b58. Find me a tuner who complains about the s58's rods who are tuning them 800hp+ on stock internals.That's why s58 is so good, especially on what you can get on stock internals.

[@laworder2652]

@@shoe3k Everyone knows about this lol. Go read the forums. The weakest point in the s58 are its conrods. It kinda makes sense though why theyre bending...twin turbos are notorious to make huge amounts of torque down low. The s58 runs s63 rods for quicker reving and so on. The s63 was known for bending them after tuning.

[@napraznicul]

Both engines runs FORGED rods, but s58 had the lighter ones (not weaker). Lighter and forged pistons only for s58.