proTUNING Freaks
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Forum > M3 / M4 Photos and Videos

Post Reply
 
Thread Tools Search this Thread
      05-22-2013, 01:35 PM   #23
ATX78703
Major
28
Rep
1,001
Posts

Drives: 2014 335i
Join Date: Jul 2011
Location: Austin, TX

iTrader: (0)

Quote:
Originally Posted by Remonster View Post
If they're making 420 horsepower at 8,000RPM then torque will be at 275lb/ft at redline. 420 horsepower at 7,500RPM translates to about 295lb/ft at that same RPM. If the horsepower and torque figures we've been hearing turn out to be correct, then this motor will be losing power quickly as you approach redline (like the current N54/N55 but I expect an M motor to have a better power curve). If you compare that to the power curves for the current S63tü, it makes almost 80% of its peak torque at redline while these rumored power figures would mean the S55 in the new M3 will barely make 70% of peak torque at redline so I still believe the real horsepower figure will be higher than 420, despite the rumors. We'll see.
The amount of torque you make after 5252 rpm is irrelevant. there's nothing gained by making a higher percentage of peak torque at redline.
__________________
2014 335i RWD: ZMM, ZDA, ZDH, ZPP, ZTP, 2NH, 2TB, 5DL; Z4A MPPK; AW ext / VB int

2014 ML350: P01, R33, 297, 319, 846, 864, 889, 996; LB ext / AB int
Appreciate 0
      05-22-2013, 01:37 PM   #24
AlpWhite11
Captain
United_States
50
Rep
693
Posts

Drives: 335i
Join Date: Apr 2009
Location: Irvine

iTrader: (0)

Send a message via Yahoo to AlpWhite11
Quote:
Originally Posted by s62
I reverse-engineered the numbers to match the 415hp and the ~395lb-ft claimed figures. Assuming a redline of 7500 to 8000 and a power curve that looks similar to the one of the S63tu, I came up with the following output.

To me at least, it appears that all surmised numbers could very well be the nearly whole truth



Of course, max torque would be converted from NM so here are other possible torque values:

540NM = 398.28lb-ft
535NM = 394.59lb-ft
530NM = 390.90lb-ft
520NM = 383.53lb-ft

But with playing the above and the RPM one can easily hit the desired hp output
Thx for sharing your analysis. I believe these numbers.

The admins and mods here report solid info.
Appreciate 0
      05-22-2013, 01:37 PM   #25
Karazy
Go Fast And Take Chances
Karazy's Avatar
United_States
45
Rep
262
Posts

Drives: 2020 M2C
Join Date: Apr 2012
Location: Coeur d' Alene, Idaho

iTrader: (0)

Quote:
Originally Posted by Remonster View Post
If they're making 420 horsepower at 8,000RPM then torque will be at 275lb/ft at redline. 420 horsepower at 7,500RPM translates to about 295lb/ft at that same RPM. If the horsepower and torque figures we've been hearing turn out to be correct, then this motor will be losing power quickly as you approach redline (like the current N54/N55 but I expect an M motor to have a better power curve). If you compare that to the power curves for the current S63tü, it makes almost 80% of its peak torque at redline while these rumored power figures would mean the S55 in the new M3 will barely make 70% of peak torque at redline so I still believe the real horsepower figure will be higher than 420, despite the rumors. We'll see.
I hope your right on the horsepower. Common M, lets see 450 HP / 400 lb-ft AND nearly an 8K rpm's!!

I'm still drooling on the new C7 Stingray...
__________________
2014 Corvette Z51 Stingray 3LT, 7 M/T
2015 KTM 1290 SA
Retired- 11 BMW 335, 07 BMW R1200GSA, 04 BMW Z4, 01 BMW K1200RS, 00 BMW R1150GS
Appreciate 0
      05-22-2013, 01:39 PM   #26
NAV8TT
Major
NAV8TT's Avatar
United_States
141
Rep
883
Posts

Drives: 2013 ///M3 E92 DCT ZCP
Join Date: Aug 2011
Location: The greatest country in the world

iTrader: (0)

This car needs a lower suspension
Appreciate 0
      05-22-2013, 01:51 PM   #27
Blindside_137
Major General
Blindside_137's Avatar
United_States
2537
Rep
9,377
Posts

Drives: '09 E93 Space Gray 328
Join Date: Jun 2010
Location: Raleigh, NC

iTrader: (1)

I really don't like the hood on the 3 series 4 series form the front 1/4 view. It looks really high.

Car on the whole looks mean
Appreciate 0
      05-22-2013, 01:54 PM   #28
Longboarder
Major General
1512
Rep
5,733
Posts

Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach

iTrader: (1)

Garage List
Quote:
Originally Posted by ATX78703 View Post
The amount of torque you make after 5252 rpm is irrelevant. there's nothing gained by making a higher percentage of peak torque at redline.
lol. 100% incorrect.
__________________
Daily: 2016 BMW i8
Airstrip: 2015 Porsche 991 Turbo S
Track: 2015 Porsche 991 GT3
Utility: 2012 BMW e92 M3 DCT
IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
Appreciate 0
      05-22-2013, 01:56 PM   #29
jayzi
Registered
0
Rep
1
Posts

Drives: Ex E30 318is
Join Date: May 2013
Location: Germany

iTrader: (0)

Are these real LED headlights?
Appreciate 0
      05-22-2013, 01:57 PM   #30
solstice
Brigadier General
1445
Rep
4,495
Posts

Drives: 2015 M3 6MT
Join Date: May 2013
Location: Seattle

iTrader: (0)

Quote:
Originally Posted by BMWFB02 View Post
This car needs a lower suspension
My first thought exactly.

The bad: the big wheel gaps and ground clearance can signal EDC with a soft comfort mode that requires long springs and the sporty setting is all electric dampers stiffening which I personally don't think feel as natural and dynamic as stiff springs.

The good ( very good ). The gaps are large even on the outer side, away from the curb when cornering. That is one stiff suspension, whoa.

I hope we get the choice of a passive sports only suspension.
Appreciate 0
      05-22-2013, 01:59 PM   #31
Jason
Administrator
Jason's Avatar
United_States
23046
Rep
19,889
Posts

Drives: F80 M3
Join Date: Mar 2005
Location: USA

iTrader: (0)

Quote:
Originally Posted by jayzi View Post
Are these real LED headlights?
Yes.
__________________
Check on the Latest BMW News
Become a fan of Bimmerpost Facebook
Follow us on Bimmerpost Twitter
Subscribe to Bimmerpost Youtube Channel
Appreciate 0
      05-22-2013, 02:02 PM   #32
Boss330
Brigadier General
Boss330's Avatar
Norway
993
Rep
4,832
Posts

Drives: BMW
Join Date: Mar 2012
Location: Norway, Scandinavia

iTrader: (0)

Considering that it seems like BMW is typically stating HP lower than it's in reality, don't be surprised that the next gen M3/M4 has 450HP...

I recently read an interview with someone from BMW that explained that their HP claims was given for a "worst case scenario" situation (like bad fuel, hot weather, high altitude, humidity etc).

BTW. Next years F1 engines will be 1.6l turbocharged engines with a lot higher rev limit than 8000rpm...
Appreciate 0
      05-22-2013, 02:04 PM   #33
ATX78703
Major
28
Rep
1,001
Posts

Drives: 2014 335i
Join Date: Jul 2011
Location: Austin, TX

iTrader: (0)

Quote:
Originally Posted by Longboarder View Post
lol. 100% incorrect.
not really, but say what you want. engines can achieve the same goal in different ways. only thing that matters is moving the axle.
__________________
2014 335i RWD: ZMM, ZDA, ZDH, ZPP, ZTP, 2NH, 2TB, 5DL; Z4A MPPK; AW ext / VB int

2014 ML350: P01, R33, 297, 319, 846, 864, 889, 996; LB ext / AB int
Appreciate 0
      05-22-2013, 02:04 PM   #34
Tåst
Second Lieutenant
Tåst's Avatar
2
Rep
220
Posts

Drives: BMW, I think.
Join Date: Sep 2012
Location: FIN

iTrader: (0)

Nearly 8000rpm means, that engine is heavy modified N55, not badge tuning.

....Mclaren Mp4 3.8L tc V8 revs 8500rpm.
Appreciate 0
      05-22-2013, 02:09 PM   #35
Dan Parker
Major
United_States
69
Rep
1,421
Posts

Drives: 2012 Golf R
Join Date: Nov 2010
Location: Georgia

iTrader: (0)

It's no Cadillac...
__________________
Dan Parker
Appreciate 0
      05-22-2013, 02:15 PM   #36
Jason
Administrator
Jason's Avatar
United_States
23046
Rep
19,889
Posts

Drives: F80 M3
Join Date: Mar 2005
Location: USA

iTrader: (0)

Added more shots:

Latest M4 Coupe Prototype on Nurburgring - in Silverstone II


__________________
Check on the Latest BMW News
Become a fan of Bimmerpost Facebook
Follow us on Bimmerpost Twitter
Subscribe to Bimmerpost Youtube Channel
Appreciate 0
      05-22-2013, 02:17 PM   #37
Jblack4083
Captain
United_States
65
Rep
858
Posts

Drives: E46 ///M3 JB/CB
Join Date: Jan 2009
Location: Queens, NYC

iTrader: (0)

I'm still not convinced by this 420hp figure. I know the horsepower wars are ending but 420 would seem to almost put the M3/M4 downmarket unless there is a combination of weight loss on the order of 150-300lbs and extensive chassis tuning (differential, custom tires maybe?)
Appreciate 0
      05-22-2013, 02:20 PM   #38
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
10484
Rep
16,470
Posts

Drives: 2019 M4cs
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2019 BMW M4cs  [0.00]
2018 Audi RS3  [0.00]
Quote:
Originally Posted by ATX78703 View Post
The amount of torque you make after 5252 rpm is irrelevant. there's nothing gained by making a higher percentage of peak torque at redline.
This is incorrect. Usually, the higher the percentage of peak torque is produced at redline, the higher the power output of an engine.

And power best indicates the capabilites of an engine .

Last edited by CanAutM3; 05-22-2013 at 02:25 PM..
Appreciate 0
      05-22-2013, 02:20 PM   #39
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
10484
Rep
16,470
Posts

Drives: 2019 M4cs
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2019 BMW M4cs  [0.00]
2018 Audi RS3  [0.00]
Quote:
Originally Posted by s62 View Post
I reverse-engineered the numbers to match the 415hp and the ~395lb-ft claimed figures. Assuming a redline of 7500 to 8000 and a power curve that looks similar to the one of the S63tu, I came up with the following output.

To me at least, it appears that all surmised numbers could very well be the nearly whole truth



Of course, max torque would be converted from NM so here are other possible torque values:

540NM = 398.28lb-ft
535NM = 394.59lb-ft
530NM = 390.90lb-ft
520NM = 383.53lb-ft

But with playing the above and the RPM one can easily hit the desired hp output
Nicely done
Appreciate 0
      05-22-2013, 02:22 PM   #40
solstice
Brigadier General
1445
Rep
4,495
Posts

Drives: 2015 M3 6MT
Join Date: May 2013
Location: Seattle

iTrader: (0)

This car will be a looker for sure. Dang, those two pix of corner entry from the front are HOT.
Appreciate 0
      05-22-2013, 02:29 PM   #41
Boss330
Brigadier General
Boss330's Avatar
Norway
993
Rep
4,832
Posts

Drives: BMW
Join Date: Mar 2012
Location: Norway, Scandinavia

iTrader: (0)

Interesting article on the McLaren MP4-12C on the dyno and with power curves.

http://www.edmunds.com/car-reviews/t...no-tested.html

As can be seen on that engine, it's possible to combine high end power, high rev limit and turbocharging.



Interesting overlay of power curves for the McLaren, Porsche 911 GT2 RS and Lexus LFA:

Appreciate 0
      05-22-2013, 02:31 PM   #42
ESC OFF
Major
ESC OFF's Avatar
United_States
27
Rep
1,058
Posts

Drives: 1M (AW) & CaymanS
Join Date: Oct 2009
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Dan Parker View Post
It's no Cadillac...
....and no matter how hard it tries, it never will be....
__________________
The faster you go, the better it feels
Appreciate 0
      05-22-2013, 02:38 PM   #43
GOLFFRR
BimmerPost Supporting Vendor
GOLFFRR's Avatar
6305
Rep
23,501
Posts


Drives: GOLFFRR cart
Join Date: Mar 2009
Location: we sell BMW/Mini to ALL US states

iTrader: (4)

I was under the impression the coupe and the sedan would be released at the same time?

are those dates confirmed or just estimates?

either way pretty exciting. I am really looking forward to seeing how they can improve over the e9x. The e9x is such an awesome car. I can't wait to see this unfold!
__________________

BEFORE YOU BUY YOUR NEXT BMW, PM ME FIRST WE CAN HOOK YOU UP!
Jimmy Bach:jbach@stevethomasbmw.com Cell:805-807-1989
If you have any issues getting a hold of Jimmy B PLEASE PM me, I'm available everyday till 545pm!
Appreciate 0
      05-22-2013, 02:42 PM   #44
burrito007
Second Lieutenant
72
Rep
227
Posts

Drives: e46 M3
Join Date: Dec 2007
Location: NY

iTrader: (0)

Quote:
Originally Posted by Gjm127 View Post
Nothing is new here except for the doubtful 8k rpm red-line which to me sounds impossible with that many turbos attached to an I6 that boasts around 415HP and 400 lb.ft torque..
If that's true, I'm all for it, I guess they're trying to make up for loss in the capability of a high-reving V8..

edit: E46 M3 had an 8k RPM redline too, my comment is flawed lol

But you are correct about the HP/TQ comment. That tq curve is going to have to be ^ instead of a nice flat curve. remember the e46 m3 only had 262 tq right up to around redline and it made 333 hp. for power to be 415 at redline, the tq will only be in the 300s.


if this is all TRUE - the car will be a real monster when tuned to hold boost to redline - we are talking 600hp.
Appreciate 0
Post Reply

Bookmarks

Tags
2014 bmw m3, 2014 m3, 2014 m3 engine, 2014 m3 forum, 2014 m3 weight, 2014 m4 engine, 2014 m4 weight, 2015 bmw m3, 2015 bmw m4, 2015 m3, 2015 m3 engine, 2015 m4 engine, 2015 m4 weight, bmw f80, bmw f80 forum, bmw f80 forums, bmw f80 m3, bmw f80 m3 s55, bmw f80 m3 sedan, bmw f82, bmw f82 forum, bmw f82 forums, bmw f82 m3, bmw f82 m3 coupe, bmw f82 m3 forum, bmw f82 m4, bmw f82 m4 coupe, bmw f82 m4 s55, bmw f83, bmw f83 m3, bmw f83 m4, bmw m forum, bmw m forums, bmw m3 s55, bmw m3 s55 engine, bmw m4, bmw m4 coupe, bmw m4 coupe forum, bmw m4 forum, bmw m4 forums, bmw s55, bmw s55 engine, bmw s55 motor, bmw spy, bmw spy photo, bmw spy photos, bmw spy pic, bmw spy pics, bmw spy video, bmw spy videos, f80, f80 forum, f80 forums, f80 m3, f80 m3 engine, f80 m3 forum, f80 m3 forums, f80 m3 motor, f80 m3 s55, f80 m3 sedan

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:41 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST