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      02-09-2016, 10:28 AM   #45
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Quote:
Originally Posted by zenmaster View Post
Basing it on the published BHP for M235i, M2, and M4. And the JB4 results from M235i and M4. The published BHP for M2 is right between the two. Common sense says the turbo cfm (and fueling) should scale to target hp.
That's common sense? Random, unsupported linear interpolation comparing completely different engines? Not all of BMW's turbo motors have the same headroom for gains from a tune. See, for example, the N54 vs. N55, or the S55 vs. the N55, etc. You just can't blindly scale up like that.

How about we look at what we know, from a technical standpoint?

If you know anything about these engines, you know the turbo size is the limiting factor on the N55 from the M235i.

If the M2 is using the same small turbo, you're going to be similarly limited in output without swapping it out. AKA, a tuned M235 N55 and a tuned M2 N55 may very well be very similar, and nowhere near the numbers you're throwing around. Again, that turbo just doesn't have much headroom left in it.

The M3/4s twin turbo setup has MUCH more headroom as far as aftermarket gains go. It's huge aftermarket potential is completely irrelevant to the discussion.

If you're assuming the M2 will see 400-450 whp on a tune-only, you're assuming that it has a larger turbo vs. the 235. That may very well be true and I'm sure we're all hoping for it...but we have no evidence of that at this point.

One would think BMW would have mentioned a larger turbo, since they took the time to list all the other engine improvements vs. the regular N55. But alas, they didn't...

Couldn't that be telling of a carry-over snail?
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      02-09-2016, 10:33 AM   #46
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Photoshop joke.

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      02-09-2016, 10:50 AM   #47
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Quote:
Originally Posted by Nine Lives View Post
That's right and considering it's a technical document then it should have been updated straight away,same goes for the other pointers mentioned,unless this is a beta version of course.
How do you know it wasn't updated?
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      02-09-2016, 11:04 AM   #48
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Quote:
Originally Posted by Nine Lives View Post
That's right and considering it's a technical document then it should have been updated straight away,same goes for the other pointers mentioned,unless this is a beta version of course.
Quote:
Originally Posted by zenmaster View Post
How do you know it wasn't updated?
Exactly, just because we have a version doesn't mean it is the latest version.
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      02-09-2016, 11:16 AM   #49
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Quote:
Originally Posted by metrickid View Post
Exactly, just because we have a version doesn't mean it is the latest version.
Agreed,therefore it could be argued that the OP's post poses more questions than answers then.
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      02-09-2016, 11:23 AM   #50
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Quote:
Originally Posted by Nine Lives View Post
Agreed,therefore it could be argued that the OP's post poses more questions than answers then.
You are sounding like a glass half empty kind of guy...
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      02-09-2016, 01:23 PM   #51
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Am I the only one impressed by how little it wheighs considering all the things they added compared to the m235i?
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      02-09-2016, 01:34 PM   #52
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Quote:
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Am I the only one impressed by how little it wheighs considering all the things they added compared to the m235i?
Wait with your judgement until you hear the road noise now that the sound insulation is removed.
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      02-09-2016, 01:55 PM   #53
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Quote:
Originally Posted by metrickid
Quote:
Originally Posted by Makman View Post
Am I the only one impressed by how little it wheighs considering all the things they added compared to the m235i?
Wait with your judgement until you hear the road noise now that the sound insulation is removed.
haha apart from that...I hope the 11kgs do not make a big difference in terms of noise...
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      02-09-2016, 02:35 PM   #54
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Interesting how the gearbox clearly has drive logic modes, they even show the gearbox button in the doc, but no actual physical switch next to the gear lever..

Also like how the flaps are always open in sport but open in comfort above a certain rpm.

Design is all about making good decisions for a user - interesting to see them put all the functions down to the comfort/ sport / sport+ switch rather than individual buttons.

Kinda like it - sport will defiantly be my main mode
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      02-09-2016, 04:24 PM   #55
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Quote:
Originally Posted by metrickid View Post
Wait with your judgement until you hear the road noise now that the sound insulation is removed.
I'm a little worried that it's going to be gasply loud to take longer trips in ....
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      02-09-2016, 04:52 PM   #56
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Quote:
Originally Posted by Adem1534 View Post
I'm a little worried that it's going to be gasply loud to take longer trips in ....
Don't worry, the ASD will drown that out!

All jokes aside, I don't think it will that bad.
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      02-09-2016, 05:09 PM   #57
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The real question is, when will I be able to drive this god forsaken mystery of a car home
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      02-09-2016, 05:39 PM   #58
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Quote:
Originally Posted by Adem1534 View Post
I'm a little worried that it's going to be gasply loud to take longer trips in ....
No way dude! This is one of the things that make me love the 1M! If you want quiet...sorry to say, get an M235i! Quit trying to soften our hardcore small M's!

PS...I hope the exhaust drones like a mofo!
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      02-09-2016, 05:53 PM   #59
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2017 BMW M2  [0.00]
Yep, the louder, ball-breaking harsher ride, the better....Alfa 4C levels of sadistic pain
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retired: 2014 435xi|MPPK|335 bhp|3/5 stars
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      02-09-2016, 05:55 PM   #60
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Quote:
Originally Posted by auf Deutsch
Yep, the louder, ball-breaking harsher ride, the better....Alfa 4C levels of sadistic pain
Haha that thing doesn't even have power steering!
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      02-09-2016, 05:59 PM   #61
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Quote:
Originally Posted by auf Deutsch View Post
Yep, the louder, ball-breaking harsher ride, the better....Alfa 4C levels of sadistic pain
Haha, yep!
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      02-09-2016, 06:25 PM   #62
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Quote:
Originally Posted by OrangeCrush View Post
No way dude! This is one of the things that make me love the 1M! If you want quiet...sorry to say, get an M235i! Quit trying to soften our hardcore small M's!

PS...I hope the exhaust drones like a mofo!
Bro, bro, bro.

You think I'd give up on this car.

After all of the blood sweat and tears?

I'd accept delivery with a smile on my face even if it sounded like standing on a f*cking helipad.
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      02-09-2016, 06:36 PM   #63
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Quote:
Originally Posted by metrickid View Post
Wait with your judgement until you hear the road noise now that the sound insulation is removed.


Page 16:
3.3. Interior
Various insulation materials were omitted in the area of the interior in order to reduce weight.
As a result of this omission of insulating material, it was possible to achieve a weight saving of approx. 11 kg / 24 lbs compared with the F22.
M2 Project Manager Frank Isenberg also referred to this in the CAR interview (here and here):
Both transmissions are borrowed from the M4, ratios, final drive and all, and there's the same M locking diff that's been helping hoons powerslide for almost two decades. But here's what I can't fathom: the M4's aluminium suspension sheds some weight, but there's the wider track, larger wheels and brakes, a diff, the burlier bodywork and extra strengthening. How on earth is M2 only a claimed 30kg heavier than M235i ?
"We ripped out all the sound deadening!" laughs Isenberg. "So you hear more and it removes a lot of weight."
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      02-09-2016, 07:00 PM   #64
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Quote:
Originally Posted by Artemis View Post


Page 16:
3.3. Interior
Various insulation materials were omitted in the area of the interior in order to reduce weight.
As a result of this omission of insulating material, it was possible to achieve a weight saving of approx. 11 kg / 24 lbs compared with the F22.
M2 Project Manager Frank Isenberg also referred to this in the CAR interview (here and here):
Both transmissions are borrowed from the M4, ratios, final drive and all, and there's the same M locking diff that's been helping hoons powerslide for almost two decades. But here's what I can't fathom: the M4's aluminium suspension sheds some weight, but there's the wider track, larger wheels and brakes, a diff, the burlier bodywork and extra strengthening. How on earth is M2 only a claimed 30kg heavier than M235i ?
"We ripped out all the sound deadening!" laughs Isenberg. "So you hear more and it removes a lot of weight."
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      02-09-2016, 07:01 PM   #65
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Quote:
Originally Posted by Adem1534 View Post
Bro, bro, bro.

You think I'd give up on this car.

After all of the blood sweat and tears?

I'd accept delivery with a smile on my face even if it sounded like standing on a f*cking helipad.
I know brudda! Just bustin' your balls a little!
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      02-09-2016, 08:17 PM   #66
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Quote:
Originally Posted by PrematureApex View Post
you're assuming that it has a larger turbo vs. the 235.
That should be obvious.
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