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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G80 M3 / G82 M4 Forum (2019+) S58 Engine Technical Document

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      07-16-2019, 02:59 PM   #23
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I don't care about water cooling this, and pistons that.

Q: Will it come with 3 pedals?

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      07-16-2019, 04:06 PM   #24
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Quote:
Originally Posted by mkoesel View Post
It's not necessary to hit 500hp with this engine. And the last thing people want is another maintenance item to think about, even just filling up a tank with water.

Perhaps a future M4 CSL will take advantage of water injection to boost output up to around 600hp.
Got to agree. Let the track focused models have that kind of special cooking where its not much of a nuisance
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      07-16-2019, 04:15 PM   #25
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Quote:
Originally Posted by t$ View Post
no water injection?
no need. I knew the media reports about the stock M3 having water injection were pure bullchit.
Hopefully the GTS/CSL will have it and get to 600hp
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      07-16-2019, 04:29 PM   #26
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Quote:
Originally Posted by Tracus View Post
Are the chain guide rails still plastic?
Gotta save weight somewhere. Why not do it in the place that requires the whole engine to be removed to replace the part?
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      07-16-2019, 05:41 PM   #27
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Quote:
Originally Posted by upsidedownfunnel View Post
Maximum engine speeds of "the S58 up to 7500rpm." On cars with torque converters, the engine speeds will be limited to 7200rpm. So it seems they at least designed this engine to mate with a manual transmission. Hopefully...
..hoping too. pretty please manual
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      07-16-2019, 05:42 PM   #28
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Quote:
Originally Posted by Falafel Combo View Post
I don't care about water cooling this, and pistons that.

Q: Will it come with 3 pedals?

THIS
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      07-16-2019, 06:19 PM   #29
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Quote:
Originally Posted by Falafel Combo View Post
I don't care about water cooling this, and pistons that.

Q: Will it come with 3 pedals?

Yes it will come with 3 pedals. Google M3 Pure.
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      07-16-2019, 06:24 PM   #30
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Quote:
Originally Posted by bimmer456 View Post
Yes it will come with 3 pedals. Google M3 Pure.
That is still very speculative. Furthermore, although we know they have tested an S58 in combination with a manual transmission, inside info does not currently confirm a manual is still coming in a production M3/M4. Hopefully more concrete information is available later this year.
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      07-16-2019, 06:25 PM   #31
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I wounder if we can convert twin into single turbo by borrowing the tables from the b58. A precision 6266 down the road would be ideal. The blow-by-gas are recycle back into the sump. What happens when we up the power?
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      07-16-2019, 06:34 PM   #32
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Quote:
Originally Posted by Frosty View Post
..hoping too. pretty please manual
Same here, MT is pure engagement and fun
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      07-16-2019, 06:35 PM   #33
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Quote:
Originally Posted by mkoesel View Post
That is still very speculative. Furthermore, although we know they have tested an S58 in combination with a manual transmission, inside info does not currently confirm a manual is still coming in a production M3/M4. Hopefully more concrete information is available later this year.
I really hope so, otherwise I am jumping after 25 years to Porsche.
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      07-16-2019, 08:47 PM   #34
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Quote:
Originally Posted by Tracus View Post
Are the chain guide rails still plastic?
? When were they NOT plastic?

Quote:
Originally Posted by upsidedownfunnel View Post
Gotta save weight somewhere. Why not do it in the place that requires the whole engine to be removed to replace the part?
the timing chain guide rails on E30 M3 were plastic....

I see what you are trying to do... but it's not really working..
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      07-16-2019, 09:31 PM   #35
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Quote:
Originally Posted by M3 Adjuster View Post
Quote:
Originally Posted by Tracus View Post
Are the chain guide rails still plastic?
? When were they NOT plastic?

Quote:
Originally Posted by upsidedownfunnel View Post
Gotta save weight somewhere. Why not do it in the place that requires the whole engine to be removed to replace the part?
the timing chain guide rails on E30 M3 were plastic....

I see what you are trying to do... but it's not really working..
Only one of the rails not under tension is plastic. All the tension guides are aluminum with plastic surfaces.
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      07-16-2019, 09:42 PM   #36
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Quote:
Originally Posted by CT92F80 View Post
Wonder if the crankhub issue has been fixed
I thought someone had posted that it's basically identically to the S55. 😬
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      07-16-2019, 10:25 PM   #37
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Quote:
Originally Posted by CT92F80 View Post
Wonder if the crankhub issue has been fixed
Yes, that issue has been resolved based the crankshaft being one solid piece vice the interference fit crankshaft to the hub on the S55.
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      07-16-2019, 11:38 PM   #38
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Interesting one of the output shafts passes through a hole in the oil pan.

Does anyone know if a tech manual exists for the B58TU?
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      07-17-2019, 01:02 AM   #39
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Quote:
Originally Posted by CT92F80 View Post
Wonder if the crankhub issue has been fixed
Yes, since B58 there has been a completely different design.

Quote:
Originally Posted by DrifterX View Post
Pretty cool they had the room to fit the intake box on top of the engine, although it makes me wonder if any additional turbo lag is noticed with the amount of intake piping for this engine (vs. the B58).

Seems they also moved the powerband up in the RPM range a bit vs. the S55; about ~500-700 RPM. I wonder how that'll make it "feel" below 2500 RPM vs. the outgoing M3/M4.
Well, most 2017 and 2018 M3s and M4s (and maybe 2016s? I don't remember) have basically zero power below 2,500RPM anyways - the software was changed in our DMEs to artificially limit boost to pretty much zero until around 2,250 or so and I can tell you my manual 2018 M3 really doesn't start to move at all until after 2,500rpm in any gear. It was a shame they designed the S55 to hit peak torque so low and then changed their mind and limited the ultra low end because we were left with sacrifices in potential top end power. This new engine seems to strike a better balance in my opinion - if you don't want a ton of torque sub-2k RPM then you may as well design the engine, turbo system, etc. to flow better at the other end of the spectrum.
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      07-17-2019, 02:14 AM   #40
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Quote:
Originally Posted by pnwzhp View Post
Interesting one of the output shafts passes through a hole in the oil pan.

Does anyone know if a tech manual exists for the B58TU?
Every 4WD BMW does this.
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      07-17-2019, 02:18 AM   #41
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Quote:
Originally Posted by M3 Adjuster View Post
? When were they NOT plastic?

the timing chain guide rails on E30 M3 were plastic....

I see what you are trying to do... but it's not really working..
Yeah, thatís the problem. Because of that, my chain snapped, severed one of the engine block pins and for that reason I needed to buy a new engine. Donít ask the price...
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      07-17-2019, 02:32 AM   #42
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Quote:
Originally Posted by mkoesel View Post
Quote:
Originally Posted by bimmer456 View Post
Yes it will come with 3 pedals. Google M3 Pure.
That is still very speculative. Furthermore, although we know they have tested an S58 in combination with a manual transmission, inside info does not currently confirm a manual is still coming in a production M3/M4. Hopefully more concrete information is available later this year.
No 6 Speed Manual ⁉️

What an extremely horrible way for BMW to recklessly shot themself in both feet ‼️
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      07-17-2019, 03:38 AM   #43
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Sexy! I hope it sounds just as good as the B58!
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      07-17-2019, 08:31 AM   #44
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Quote:
Originally Posted by bimmer456 View Post
Yes it will come with 3 pedals. Google M3 Pure.
January 2019 things changed. Read more recently posted stuff. No pure as one model scraped.
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