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
      07-23-2013, 12:28 PM   #89
PTA85
Second Lieutenant
PTA85's Avatar
United_States
17
Rep
257
Posts

Drives: 06' 330i
Join Date: Apr 2010
Location: VA

iTrader: (0)

Garage List
2006 330i  [0.00]
Quote:
Originally Posted by Jblack4083
The noise. Everyone complains about it... I don't think its a bad sounding car. It seems like while daily driving this on the street it will have a very good sound presence with its deep and bassy exhaust. The E9X sounds amazing in the upper RPMs but really lets down when doing casual driving on the street. I've always liked how the E9X M's sound like a fast car, far away, even when they're close to you but sometimes its underwhelming.

This car sounds great and will command a presence at all RPMs it seems. What's interesting is that the prototypes dont all sound the same...

Quote:
Originally Posted by PTA85 View Post
at 3:08 Not sure if it is another car but when he gets off the gas and on the brakes you can hear the blow-off valve pretty clearly. Might be imagining things lol.
That noise is most likely the ceramic brakes. I could be wrong but I believe the BMW turbo engines use diverter valves not blow off valves.
Yeah, wasn't sure if they used blow off or diverter Valves. That car sure is planted though.
Appreciate 0
      07-23-2013, 01:19 PM   #90
greycrx87
First Lieutenant
greycrx87's Avatar
United_States
85
Rep
314
Posts

Drives: 2011 AW E92 ZCP
Join Date: May 2010
Location: Chicago, IL

iTrader: (0)

what really worries me is the long term reliability of the so called new technology turbo engines, just had bad experience with chronic issues on other turbocharged cars.
__________________
Kobieta mnie bije
Appreciate 0
      07-23-2013, 01:54 PM   #91
marcva
Captain
United_States
378
Rep
647
Posts

Drives: E36 M345
Join Date: Mar 2008
Location: Vienna, Virginia, USA

iTrader: (0)

Quote:
Originally Posted by greycrx87 View Post
what really worries me is the long term reliability of the so called new technology turbo engines, just had bad experience with chronic issues on other turbocharged cars.
As opposed to, say, the bomb proof, cost effective ownership of the n/a motor in the e39m5?

Anything with an m is going to be complex and expensive to fix, except for the e36 332I, er, m3
Appreciate 0
      07-23-2013, 01:56 PM   #92
Raikkonen
Captain
Raikkonen's Avatar
No_Country
383
Rep
827
Posts

Drives: 2024 X5 M60i
Join Date: Jun 2005
Location: Grosse Pointe Park, MI

iTrader: (2)

I'm not sure if this has been mentioned before, but it looked like the dark car had saddle leather!!!!
Appreciate 0
      07-23-2013, 04:07 PM   #93
NISFAN
Major General
NISFAN's Avatar
United Kingdom
3425
Rep
9,708
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Bedford UK

iTrader: (0)

Quote:
Originally Posted by Boss330 View Post
Added this new video of M4 testing in original post

Hmmmm how many up shifts do you count there Boss man?

Note to aftermarket tuners: get working on those short ratio diff's, a BMW provided gold mine
Appreciate 0
      07-23-2013, 04:49 PM   #94
Boss330
Major General
Boss330's Avatar
No_Country
1742
Rep
5,110
Posts

Drives: BMW
Join Date: Mar 2012
Location: Earth

iTrader: (0)

Quote:
Originally Posted by NISFAN View Post
Hmmmm how many up shifts do you count there Boss man?

Note to aftermarket tuners: get working on those short ratio diff's, a BMW provided gold mine
As I said in a previous post; Turbo cars tend to have longer gears since they often have a broader useable rev range than a highly tuned NA engine. With your love of turbo cars, I'm sure you appreciate that...
Appreciate 0
      07-23-2013, 05:16 PM   #95
solstice
Major General
5522
Rep
7,081
Posts

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

iTrader: (0)

Quote:
Originally Posted by Boss330 View Post
As I said in a previous post; Turbo cars tend to have longer gears since they often have a broader useable rev range than a highly tuned NA engine. With your love of turbo cars, I'm sure you appreciate that...
Which is also part of the uninspiring racing sound. When you start your gear run at 2.5k rpm instead of 4.5k rpm it will sound a lot lazier and boring accelerating out of a curve indepedent on what gear you are in or how long it is. Welcome to torque racing... Let's face it, it sucks from an audio excitement point of view compared to a NA screamer but the power will be impressive and there still seem to be a nice top end to explore. And this chassi...oh yeah.
Appreciate 0
      07-23-2013, 05:22 PM   #96
Kayani_1
Lieutenant Colonel
Kayani_1's Avatar
United_States
83
Rep
1,656
Posts

Drives: BMW E92/E60
Join Date: Oct 2009
Location: Houston

iTrader: (1)

I was hoping more aggression in sound department.
__________________
nickname"BAD 3",MHD E85 tune,RennArt catback non-resonated exhaust,VRSF Downpipes, VRSF 7"FMIC,VRSF stock side inlets,SSQV BOV,ECS CP,M-performance alcantara steering,retrofit M3 paddle shifters,Alpina B3 tranny flash,AFE power seal CAI,LED angels,ST Coilovers,M3 upper/lower control arms,E93 M3 Front Swaybar ,235/35/19x9 ,275/30/19x9.5. M sport bumpers, CF diffuser. When in doubt..flat out.
Appreciate 0
      07-23-2013, 05:55 PM   #97
nmehta211
Lieutenant
75
Rep
402
Posts

Drives: 08 E90 M3
Join Date: Jan 2006
Location: NYC

iTrader: (3)


Looks much flatter than testing with the E9x series...
__________________

08 E90 M3 Interlagos Blue
99 E36 M3 Cosmos, #2--Sold
99 E36 M3 Cosmos, #1--Sold
Appreciate 0
      07-23-2013, 06:02 PM   #98
Boss330
Major General
Boss330's Avatar
No_Country
1742
Rep
5,110
Posts

Drives: BMW
Join Date: Mar 2012
Location: Earth

iTrader: (0)

Quote:
Originally Posted by solstice View Post
Which is also part of the uninspiring racing sound. When you start your gear run at 2.5k rpm instead of 4.5k rpm it will sound a lot lazier and boring accelerating out of a curve indepedent on what gear you are in or how long it is. Welcome to torque racing... Let's face it, it sucks from an audio excitement point of view compared to a NA screamer but the power will be impressive and there still seem to be a nice top end to explore. And this chassi...oh yeah.
Very true.
Appreciate 0
      07-23-2013, 06:10 PM   #99
NISFAN
Major General
NISFAN's Avatar
United Kingdom
3425
Rep
9,708
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Bedford UK

iTrader: (0)

Quote:
Originally Posted by Boss330 View Post
As I said in a previous post; Turbo cars tend to have longer gears since they often have a broader useable rev range than a highly tuned NA engine. With your love of turbo cars, I'm sure you appreciate that...
Nope, I like a close ratio box....always. Helps with the lag you understand

Flippin M6 does 110mph in 3rd......and yes it has a nice flat torque wave to make that work, but boy does it make the car boring!!!! (for a 560horse M Car)

I have a feeling 6th and 7th in M3/M4 will be a wasted gears too. all for an extra 3 mpg
Appreciate 0
      07-23-2013, 06:17 PM   #100
NISFAN
Major General
NISFAN's Avatar
United Kingdom
3425
Rep
9,708
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Bedford UK

iTrader: (0)

Quote:
Originally Posted by Kayani_1 View Post
I was hoping more aggression in sound department.
Don't forget we are only hearing the external sounds.....might sound a whole lot different in the driving seat. We can only hope
Appreciate 0
      07-23-2013, 06:57 PM   #101
Mangler
First Lieutenant
Mangler's Avatar
17
Rep
329
Posts

Drives: 08' 335i, ZHP 330i
Join Date: Nov 2008
Location: Southeast

iTrader: (0)

Garage List
88 .  [0.00]
2008 BMW 335i  [0.00]
Quote:
Originally Posted by NISFAN
Quote:
Originally Posted by Kayani_1 View Post
I was hoping more aggression in sound department.
Don't forget we are only hearing the external sounds.....might sound a whole lot different in the driving seat. We can only hope
Only because they are piping in a flat plane S65 ALMS engine song.

T
Appreciate 0
      07-23-2013, 07:26 PM   #102
Carl L
Major
Carl L's Avatar
196
Rep
1,248
Posts

Drives: '15 M3
Join Date: Aug 2012
Location: West Coast

iTrader: (0)

Quote:
Originally Posted by NISFAN View Post
Nope, I like a close ratio box....always. Helps with the lag you understand

Flippin M6 does 110mph in 3rd......and yes it has a nice flat torque wave to make that work, but boy does it make the car boring!!!! (for a 560horse M Car)

I have a feeling 6th and 7th in M3/M4 will be a wasted gears too. all for an extra 3 mpg
Hmmm. I've never used 7th at the track and would welcome a gear that doesn't mean well over 3k cruising on the freeway and the fuel savings that come with it. The rest of the ratios should be tight but a long 7th makes better sense than what we have now.
Appreciate 0
      07-23-2013, 08:04 PM   #103
ProbyOne
Private
ProbyOne's Avatar
United_States
13
Rep
72
Posts

Drives: Acura TL / E93 M3 / 996
Join Date: Nov 2010
Location: LA

iTrader: (0)

Quote:
Originally Posted by BlackJetE90 View Post
No it doesn't.
I'm pretty confident that I know what I am thinking

Tell me what frequency you would hear from an I6 @ 8000 RPM. Any idea?

I'll give you a hint: 400 Hz


It's actually pretty easy to correct for the Doppler effect and estimate the RPM given that we know the engine architecture and vehicle velocity.
__________________
you are a winner
Appreciate 0
      07-23-2013, 08:10 PM   #104
ProbyOne
Private
ProbyOne's Avatar
United_States
13
Rep
72
Posts

Drives: Acura TL / E93 M3 / 996
Join Date: Nov 2010
Location: LA

iTrader: (0)

Check out the video at 3:07

1. Try to match the frequency of the observed sound which I estimate is around 350 Hz.

2. Figure out the speed of the car away from camera. It sounds like the top of 3rd gear which should be around 90-100 mph depending on gearing.

3. Correct for Doppler effect. Easy if you can Google. http://www.wolframalpha.com/input/?i...400Hz%2C+90mph

So again, it sounds pretty close to 8000 rpm. It's way better than a guess.
__________________
you are a winner
Appreciate 0
      07-23-2013, 10:05 PM   #105
hellrotm
Banned
4143
Rep
6,924
Posts

Drives: F80
Join Date: Jul 2007
Location: ...Location...Location

iTrader: (0)

^
You are actually serious.
Appreciate 0
      07-23-2013, 10:19 PM   #106
Xelloss
Private First Class
Xelloss's Avatar
United_States
32
Rep
172
Posts

Drives: BMW E46 M3
Join Date: Oct 2007
Location: NYC

iTrader: (0)

The sound of the F82 M4 will never compare to the E92 M3 (I don''t mind as much) so let's just stop complaining about it. Though, at 1:07 before the mini Karusell, it sounds like a vintage screaming I6.

I'm all for pushing the envelope of technology so long as the driving experience that BMW has given us is still there. Just look at Porsche with the new GT3 (highly probable to be next car) and the outcry from loyalist over the PDK, EPS and RWS without even driving it yet the actual driving reviews say otherwise. I say let us judge the car when it comes, then we can talk praise/criticism.
__________________
2004 E46 M3, Jet Black/Black Interior, SMG II, Nav/Fully Loaded

"I feel the need...

...the need for speed!"
Appreciate 0
      07-23-2013, 11:44 PM   #107
swamp2
Lieutenant General
swamp2's Avatar
United_States
644
Rep
10,404
Posts

Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (3)

Quote:
Originally Posted by Boss330 View Post
As I said in a previous post; Turbo cars tend to have longer gears since they often have a broader useable rev range than a highly tuned NA engine.
The reason is more simply because of the massive torque. The current car has a very broad power band with a very high percentage of peak torque across a wide swath of rpm, but its relatively low CRANK torque must be significantly gear multiplied to achieve a desired acceleration. A turbo car does not have that requirement and thus to have improved fuel efficiency will have numerically lower gears/final drive ratios.

NISFAN: As is typical with a final drive modifications one here for the M4 will help some performance contests and hurt others and when considering results say on a strip or track across a wide variety of gears overall it will be a wash. There is no such thing as a free lunch and altering a FD ratio simply does not give one a single speck more power and that is what matters.
__________________
E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit |
Appreciate 0
      07-24-2013, 06:07 AM   #108
bates1325
2021 X3MC
bates1325's Avatar
United_States
259
Rep
778
Posts

Drives: X3MC / R8V10 Gated
Join Date: Feb 2011
Location: MIAMI

iTrader: (1)

Garage List
2021 BMW X3MC  [0.00]
everyone is complaining about how weak or burpy the stock exhaust note is.

because the exhaust note was so perfect on the e92 that no one went aftermarket...

have you guys not heard the f30 335i exhaust by meisterschaft let the aftermarket men do their work!

i am as much excited for what the brands can do to this car as the car itself.
__________________

2021 X3MC Black / Black

My Engine Table Designs -> https://www.instagram.com/tombatesdesign/
Appreciate 0
      07-24-2013, 03:45 PM   #109
NISFAN
Major General
NISFAN's Avatar
United Kingdom
3425
Rep
9,708
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Bedford UK

iTrader: (0)

Quote:
Originally Posted by swamp2 View Post
The reason is more simply because of the massive torque. The current car has a very broad power band with a very high percentage of peak torque across a wide swath of rpm, but its relatively low CRANK torque must be significantly gear multiplied to achieve a desired acceleration. A turbo car does not have that requirement and thus to have improved fuel efficiency will have numerically lower gears/final drive ratios.

NISFAN: As is typical with a final drive modifications one here for the M4 will help some performance contests and hurt others and when considering results say on a strip or track across a wide variety of gears overall it will be a wash. There is no such thing as a free lunch and altering a FD ratio simply does not give one a single speck more power and that is what matters.
Not so fast....the old long gear ratio, but less gear change time wastage vs. time lost gear changing, but tighter gear multiplication groups doesn't work out so well in DCT land. The time a DCT changes gear in, is so much shorter that there isn't the pause in performance that counts against the general advantage of having smaller drops in torque multiplication......plus there is absolutely nothing sporty about being able to lap a track using only 2 maybe 3 gears, regardless of how fast it is, it is not good.

For info the M6 does 40mph in top gear, that is a theoretical 288mph geared speed. Tell me that wouldn't benefit from having a shorter gear set?

Furthermore anyone who supports the fact that turbo's provide significant lag, will also support that there are occasions, like coming out of a corner, where there isn't boost, and therefore torque to carry a long ratio......just teasing on this one
Appreciate 0
      07-24-2013, 05:10 PM   #110
tdizzle
Colonel
United_States
107
Rep
1,997
Posts

Drives: 2017 F80 ZCP
Join Date: Aug 2012
Location: Memphis

iTrader: (0)

Quote:
Originally Posted by NISFAN View Post
.....plus there is absolutely nothing sporty about being able to lap a track using only 2 maybe 3 gears, regardless of how fast it is, it is not good.
That's exactly what you can do at the BMW Performance track in SC. You spend 99% of your time in 2nd and 3rd, only needing 4th very briefly in one section of the track.

If you're in the M5/6 you could probably spend most of that time in 3rd with all that torque.
Appreciate 0
Post Reply

Bookmarks

Tags
2014 bmw m3, 2014 m3, 2014 m3 forum, 2014 m3 video, 2015 bmw m3, 2015 bmw m4, 2015 m3, 2015 m4, bmw f80, bmw f80 forum, bmw f80 forums, bmw f80 m3, 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 f83, bmw f83 m3, bmw f83 m4, bmw m forum, bmw m forums, bmw m4, bmw m4 coupe, bmw m4 coupe forum, bmw m4 forum, bmw m4 forums, f80, f80 forum, f80 forums, f80 m3, f80 m3 forum, f80 m3 forums, f80 m3 sedan, f80 m3 video, f82, f82 coupe, f82 forum, f82 forums, f82 m3, f82 m3 coupe, f82 m3 forum, f82 m4, f82 m4 coupe, f82 m4 forum, f82 m4 forums, f82 m4 video, f83 m3, f83 m4, m forum, m forums, m3 f80, m3 f80 forum, m3 f80 forums, m4 forum, m4 forums

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 09:03 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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