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      02-10-2016, 07:30 PM   #89
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Quote:
Originally Posted by PrematureApex View Post
10% is the norm? Do tell! 10% huh?
Yes, around 10%. You sure like to talk alot.
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      02-10-2016, 07:45 PM   #90
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Quote:
Originally Posted by M3 Adjuster View Post
It makes a lot of sense to me.. I think BMW isn't into releasing proprietary info.

I DO think there is a new turbo and here is why..

- there is reference to a redesigned manifold/turbo

sounds like a new location/turbo to me

- dyno curves

Did you see the difference in the N54B30TO and N55B30TO dyno curves?
The new motor makes a TON more power at 6500 rpm and is still making power where the N54 has already given up... It looks like it really fully pulls to 7000.... I don't think that's just tuning and beefed up internals..

- everyone doubts BMW M... and they always find a way to throw down a trump card.

As you mentioned.... there is a lot of work done to the M2 motor.... and I can't see keeping the same snail when so much else has changed from the regular N55 - this is BMW M..
Where is the "reference to a redesigned manifold/turbo" ?

I think if BMW had put so much as upgraded wiper blades on the M2 it would be in that marketing material they published as a "Technical Training Document"

Why would they leave out an upgraded turbo, but mention the wastegate and other small things. I hope I'm wrong, but I'm being realistic here.
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      02-10-2016, 07:48 PM   #91
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Quote:
Originally Posted by 3tekcorps View Post
Where is the "reference to a redesigned manifold/turbo" ?

I think if BMW had put so much as upgraded wiper blades on the M2 it would be in that marketing material they published as a "Technical Training Document"

Why would they leave out an upgraded turbo, but mention the wastegate and other small things. I hope I'm wrong, but I'm being realistic here.
I remember reading something about a different manifold but am not sure if that was from BMW or just a rumor on the forum. I will try to did it up.
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      02-10-2016, 07:56 PM   #92
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Quote:
Originally Posted by OrangeCrush View Post
I remember reading something about a different manifold but am not sure if that was from BMW or just a rumor on the forum. I will try to did it up.
Maybe it was the same BMW rep who said it's got twin turbos

Some of these guys are clueless. I went to a driving event last week and asked for a Manual or DCT car. They had three M3 and an M5.



BMW REP: "We don't have any manuals, only automatics here today"

ME: "What about a DCT, don't you have a car with a DCT"

BMW RE: "No, only automatics. Which one would you like to drive?"

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      02-10-2016, 07:56 PM   #93
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This manual is a goldmine. It has shop manual-like detail but without the assembly/disassembly steps.
Fascinating to read.
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      02-10-2016, 07:59 PM   #94
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Quote:
Originally Posted by Bosozoku View Post
This manual is a goldmine. It has shop manual-like detail but without the assembly/disassembly steps.
Fascinating to read.

I agree. I think I read it front to back twice last night. It's the most reading I've done in year.

Nothing about a turbo though
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      02-10-2016, 08:22 PM   #95
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http://f87.bimmerpost.com/forums/sho....php?t=1184123

This is the thread I was talking about. Nothing really here but the same rumors and arguments.
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      02-10-2016, 08:27 PM   #96
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"Overboost:
On the N55B30T0 engine, the torque is increased from 465 Nm/343 lb-ft to 500 Nm/369 lb-ft (overboost) by a brief increase in the charging pressure of 0.1 bar above the normal charging pressure."

Does this equals to more horsepower as well, or only more torque?. I donīt get how those two are not related

Thanks
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      02-10-2016, 08:55 PM   #97
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It's because the boost tapers before peak horsepower is hit. So there will be greater area under the HP curve but not a greater peak number because that happens near or at redline still.
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      02-10-2016, 08:56 PM   #98
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Quote:
Originally Posted by OrangeCrush View Post
http://f87.bimmerpost.com/forums/sho....php?t=1184123
This is the thread I was talking about. Nothing really here but the same rumors and arguments.
Quote:
Originally Posted by cwg View Post
When I look at the power and torque curves, it indicates to me that the turbo is very small and already being pushed. While there is a little bump at 6500 rpm and that is where BMW list peak power, the shape of the curves show that really peak power for practical purposes is at 5500 rpm and the power is pretty flat to 6500 with a sharp drop off after that. Similarly the torque starts to drop off sharply at 5500 rpm. Total torque drops by about 25% between 5500 rpm and 6500 rpm. This leads me to believe that the turbo is maxed out. Maybe it indicates that BMW just tuned it that way, but I think its more likely that the Turbo just can't keep up above 5500 rpm.
Reported in the light of the BMW M2 MotoGP Safety Car news: "The outstanding performance of the production engines can actually be surpassed, thanks to the BMW M Performance Power Kit." (http://f87.bimmerpost.com/forums/sho...26&postcount=1).

No details known yet about that MPPK for the M2, but it may push the official hp figure close to, or even beyond, the 400hp barrier. So BMW must have left enough room for some extra oomph.
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      02-10-2016, 08:59 PM   #99
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Quote:
Originally Posted by Artemis View Post
Reported in the light of the BMW M2 MotoGP Safety Car news: "The outstanding performance of the production engines can actually be surpassed, thanks to the BMW M Performance Power Kit." (http://f87.bimmerpost.com/forums/sho...26&postcount=1).

No details known yet about that MPPK for the M2, but it may push the official hp figure close to, or even beyond, the 400hp barrier. So BMW must have left enough room for some extra oomph.
I saw that and asked about it in another thread! Does an MPPK really exist for the M2 or is it just another lost in translation mistake?
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      02-10-2016, 09:01 PM   #100
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Quote:
Originally Posted by OrangeCrush View Post
I saw that and asked about it in another thread! Does an MPPK really exist for the M2 or is it just another lost in translation mistake?
Hopefully it's for real. Here's a video of the past about MPPK:

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      02-10-2016, 11:19 PM   #101
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Quote:
Originally Posted by 3tekcorps View Post
Where is the "reference to a redesigned manifold/turbo" ?

I think if BMW had put so much as upgraded wiper blades on the M2 it would be in that marketing material they published as a "Technical Training Document"

Why would they leave out an upgraded turbo, but mention the wastegate and other small things. I hope I'm wrong, but I'm being realistic here.
I think he was referring to the info that said the turbo was integrated into the exhaust manifold for this version of the N55?
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      02-11-2016, 02:57 AM   #102
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Quote:
Originally Posted by Artemis View Post
Hopefully it's for real. Here's a video of the past about MPPK:

Quote:
Originally Posted by OrangeCrush View Post
I saw that and asked about it in another thread! Does an MPPK really exist for the M2 or is it just another lost in translation mistake?
I'm wondering why the MotoGp Safety Car doesn't have the MPPK fitted already as it seems to have everything else and then some.The engine specs are quoted as being the same as the standard car.
I wonder if this is getting muddled up with the lifting of the top speed limiter in the 'M drivers package' perhaps.
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      02-11-2016, 04:35 AM   #103
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Quote:
Originally Posted by M3 Adjuster View Post
It makes a lot of sense to me.. I think BMW isn't into releasing proprietary info.

I DO think there is a new turbo and here is why..

- there is reference to a redesigned manifold/turbo

sounds like a new location/turbo to me

- dyno curves

Did you see the difference in the N54B30TO and N55B30TO dyno curves?
The new motor makes a TON more power at 6500 rpm and is still making power where the N54 has already given up... It looks like it really fully pulls to 7000.... I don't think that's just tuning and beefed up internals..

- everyone doubts BMW M... and they always find a way to throw down a trump card.

As you mentioned.... there is a lot of work done to the M2 motor.... and I can't see keeping the same snail when so much else has changed from the regular N55 - this is BMW M..
I agree on this observation, that it does suggest some modifications could have been done to the turbo charger.
I am no expert but how could you otherwise manage to extend the power so high in the RPM-range as compared to the engine in the M135/235i?

Could the boost curve be set so it does not hold itīs power as high in the rev range in the M235i for example? Usually I believe you do that to avoid excessive heat or because the turbo can not flow enough air at high RPMs du to itīs characteristics.

Perhaps someone who knows how M135/235 responds to SW tuning can comment.

Br
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      02-11-2016, 05:16 AM   #104
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As a reference I have a SoftWare flash tune on my car and it holds power to 6500rpm no worries with peak power at 6300rpm. Not sure what that tells us. FBO with software 365HPATW.... familiar number !
Quote:
Originally Posted by F1zbo View Post
I agree on this observation, that it does suggest some modifications could have been done to the turbo charger.
I am no expert but how could you otherwise manage to extend the power so high in the RPM-range as compared to the engine in the M135/235i?

Could the boost curve be set so it does not hold itīs power as high in the rev range in the M235i for example? Usually I believe you do that to avoid excessive heat or because the turbo can not flow enough air at high RPMs du to itīs characteristics.

Perhaps someone who knows how M135/235 responds to SW tuning can comment.

Br

Last edited by chaddy74; 02-11-2016 at 05:24 AM..
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      02-11-2016, 05:40 AM   #105
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Quote:
Originally Posted by Artemis
Quote:
Originally Posted by OrangeCrush View Post
I saw that and asked about it in another thread! Does an MPPK really exist for the M2 or is it just another lost in translation mistake?
Hopefully it's for real. Here's a video of the past about MPPK:

MPPK doesnt make any sense on a M-car...

M-power>M-performance
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      02-11-2016, 06:00 AM   #106
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Quote:
Originally Posted by Makman
Quote:
Originally Posted by Artemis
Quote:
Originally Posted by OrangeCrush View Post
I saw that and asked about it in another thread! Does an MPPK really exist for the M2 or is it just another lost in translation mistake?
Hopefully it's for real. Here's a video of the past about MPPK:

MPPK doesnt make any sense on a M-car...

M-power>M-performance
So I Guess you probably feel that a power boost as part of an LCI or " competition " package is totally useless too...
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      02-11-2016, 10:20 AM   #107
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Quote:
Originally Posted by zenmaster View Post
Yes, around 10%. You sure like to talk alot.


But I just showed you were it is, in fact, nothing near 10%...for any of the motors in question.

AKA, you're factually incorrect.
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      02-11-2016, 10:21 AM   #108
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Quote:
Originally Posted by PackPride85 View Post
I think he was referring to the info that said the turbo was integrated into the exhaust manifold for this version of the N55?
It is on the other N55s as well.
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      02-11-2016, 10:27 AM   #109
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Quote:
"Overboost:
On the N55B30T0 engine, the torque is increased from 465 Nm/343 lb-ft to 500 Nm/369 lb-ft (overboost) by a brief increase in the charging pressure of 0.1 bar above the normal charging pressure."

Does this equals to more horsepower as well, or only more torque?. I donīt get how those two are not related

Thanks
By definition, any increase in torque creates a corresponding increase in power at any given RPM.

As posted, peak HP might not increase, because the extra torque (and accompanying extra HP) is produced at a lower RPM and doesn't exceed the peak HP.
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      02-11-2016, 10:30 AM   #110
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Quote:
Originally Posted by PrematureApex View Post


But I just showed you were it is, in fact, nothing near 10%...for any of the motors in question.

AKA, you're factually incorrect.
where's the dyno numbers?
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