[Mani59]

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[CanAutM3]

[solstice]

This is what makes it the most difficult to leave BMW, they make great engines. A full episode just about the crankshaft and piston is an indication on their dedication to the motors.

[xlover]

Originally Posted by solstice

This is what makes it the most difficult to leave BMW, they make great engines. A full episode just about the crankshaft and piston is an indication on their dedication to the motors.

I am curious/hopeful they do one on the intake and turbo system and how they have been further optimized, visually it's obviously different than the x3m/x4m motor.

[solstice]

Originally Posted by xlover

I am curious/hopeful they do one on the intake and turbo system and how they have been further optimized, visually it's obviously different than the x3m/x4m motor.

I hope so too. As I recall Flash said that the G8X version of the S58 is the same engine as in the GT3 race car, the only difference being a bigger oil cooler in the race car. That is pretty promising for high performance durability and stability.

[AlexFL]

S58 is the best inline six in the business!

[LemonOne]

Pretty geeky stuff.
Love the engineering.

[Tag]

Had high hopes for more technical info on the S58, but the video was a bit of a let down. He didn't talk about the crank hub now being permanently affixed nor did he talk about the PCV system which has been vastly improved over the S55.

[Wills2]

Originally Posted by xlover

I am curious/hopeful they do one on the intake and turbo system and how they have been further optimized, visually it's obviously different than the x3m/x4m motor.

Yes this is intriguing me as well, as the competition engine has the same maximum power output but the torque values are different (more peak torque in the G80 version, 10% more?) I don't think they have released a dyno plot yet for M3/4 S58.

My X3MC is:

503@5950-7300 and 442@2600-5500

The G80 version is

503@6250 and 479@2750-5500

So X3MC S58 holds maximum power for 1350 rpm to 7300rpm the G80 version maxes out at 6250rpm which is later but can't hold it to the redline but the G80 makes more torque but it starts later, G80 version looks to have more mid range punch but less top end.

[F85MTuNED]

As I said on YouTube if any crank fu**ery takes place berti is to blame 🤣

[Racer20]

These videos are awful. This one goes into tons of technical detail, but not in any way that helps connect these details to things we care about. Like, I assume all high performance engines have some fancy machining and expensive coatings. Big deal . . . why are THESE the things you're showing us? How do they compare to the S55? Why should we care about these details?

BMW is so disconnected from its customers these days. I'm not even talking enthusiasts . . . these guys aren't talking to really anyone here, and the videos have no cohesive theme or approach. They aren't interesting or well presented.

[stevehifi]

i doubt the s58 in the X3M and G80 are different.. wouldn't make sense financially from BMW's point of view to have different assembly lines for the long block.

I'm sure the differences (if any) are just the intake plumbing, engine cover and some programming of the ECU.

[SYT_Shadow]

Cracked rods are pretty impressive with you do rod bearing jobs. I saw them for the first time on the E46 years ago and was impressed with the concept

I'm glad to see the integrated teeth on the crank, it will help us avoid crank hub madness from the S55.

I am curious about the turbolag comments from the X3/4 M and how this will translate to the G8X, especially in 6MT form

[mfurse]

Originally Posted by Tag

Had high hopes for more technical info on the S58, but the video was a bit of a let down. He didn't talk about the crank hub now being permanently affixed nor did he talk about the PCV system which has been vastly improved over the S55.

I'm pretty sure BMW wouldn't admit there was a bad weakness in a previous engine to sell the new one ... would be like saying you should buy the F8x because the E9x rod bearings are made of tissue paper and could grenade anytime.

Good to see they are continuing to iterate and improve the straight six though.

[spuntyb]

Originally Posted by solstice

This is what makes it the most difficult to leave BMW, they make great engines. A full episode just about the crankshaft and piston is an indication on their dedication to the motors.

+1

The engine/drivetrain is like 90% why I'm sticking with BMW and getting an F97/98 vs a Macan Turbo. They're just that good.

Will be happy to kiss this crankhub goodbye though!

[Jimjamz]

Originally Posted by RoadRunner///M

How many times does he say "high revs"? ...yet lower redline than the S55

It's an interesting point. The S55 seemed pretty bullet proof over its many applications.

[Tag]

Originally Posted by mfurse

I'm pretty sure BMW wouldn't admit there was a bad weakness in a previous engine to sell the new one ... would be like saying you should buy the F8x because the E9x rod bearings are made of tissue paper and could grenade anytime.

Good to see they are continuing to iterate and improve the straight six though.

Wasn't expecting them to admit anything, just mention the 'new design'.

[MineralM]

Originally Posted by Racer20

These videos are awful. This one goes into tons of technical detail, but not in any way that helps connect these details to things we care about. Like, I assume all high performance engines have some fancy machining and expensive coatings. Big deal . . . why are THESE the things you're showing us? How do they compare to the S55? Why should we care about these details?

BMW is so disconnected from its customers these days. I'm not even talking enthusiasts . . . these guys aren't talking to really anyone here, and the videos have no cohesive theme or approach. They aren't interesting or well presented.

They guy who builds the engine probably has a better idea of what important to mention in a video about the engine. Just a thought.

[Boss330]

Originally Posted by spuntyb

+1

The engine/drivetrain is like 90% why I'm sticking with BMW and getting an F97/98 vs a Macan Turbo. They're just that good.

Will be happy to kiss this crankhub goodbye though!

Originally Posted by Tag

Had high hopes for more technical info on the S58, but the video was a bit of a let down. He didn't talk about the crank hub now being permanently affixed nor did he talk about the PCV system which has been vastly improved over the S55.

Originally Posted by SYT_Shadow

Cracked rods are pretty impressive with you do rod bearing jobs. I saw them for the first time on the E46 years ago and was impressed with the concept

I'm glad to see the integrated teeth on the crank, it will help us avoid crank hub madness from the S55.

I am curious about the turbolag comments from the X3/4 M and how this will translate to the G8X, especially in 6MT form

Originally Posted by spuntyb

+1

The engine/drivetrain is like 90% why I'm sticking with BMW and getting an F97/98 vs a Macan Turbo. They're just that good.

Will be happy to kiss this crankhub goodbye though!

The «crankhub madness» must be a US problem... The guys at Apex Nürburg which has the F80 taxi and the F82 rental car on the ring has never had any issues and apparently not anyone else of the Nürburgring track regulars 😉

[GOLFFRR]

another great BMW motor

[KoenG]

Originally Posted by Wills2

Yes this is intriguing me as well, as the competition engine has the same maximum power output but the torque values are different (more peak torque in the G80 version, 10% more?) I don't think they have released a dyno plot yet for M3/4 S58.

My X3MC is:

503@5950-7300 and 442@2600-5500

The G80 version is

503@6250 and 479@2750-5500

So X3MC S58 holds maximum power for 1350 rpm to 7300rpm the G80 version maxes out at 6250rpm which is later but can't hold it to the redline but the G80 makes more torque but it starts later, G80 version looks to have more mid range punch but less top end.

On Belgium website, both are mentioned with 503@6250rpm. I don't see a reason in the higher torque plateau at all to have an earlier power drop in the G80. When both use the same turbo, they have the same limitation in air throughput. Consequently, I don't think top end G80 is lower, it will rather be identical.

[xlover]

Originally Posted by Wills2

Yes this is intriguing me as well, as the competition engine has the same maximum power output but the torque values are different (more peak torque in the G80 version, 10% more?) I don't think they have released a dyno plot yet for M3/4 S58.

My X3MC is:

503@5950-7300 and 442@2600-5500

The G80 version is

503@6250 and 479@2750-5500

So X3MC S58 holds maximum power for 1350 rpm to 7300rpm the G80 version maxes out at 6250rpm which is later but can't hold it to the redline but the G80 makes more torque but it starts later, G80 version looks to have more mid range punch but less top end.

For what it's worth I believe other versions of the launch documentation reflect that the M3/M4 version does hold peak power to redline.

But your general statements hold