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 > BMW M3 (F80) and BMW M4 (F82) General Forum

Post Reply
 
Thread Tools Search this Thread
      09-24-2013, 06:30 PM   #1
Jason
Administrator
 
Jason's Avatar
 
Drives: E90 M3
Join Date: Mar 2005
Location: USA

Posts: 16,432
iTrader: (0)

Arrow BIMMERPOST M3/M4 First Ride Notes, Impressions and More Tech Details

BIMMERPOST NEWS
Our Notes and Impressions from BMW M3/M4 Workshop and Ride-Along
156
COMMENTS

BIMMERPOST correspondent Jens Meiners just spent a day at BMW's testing center near Munich for the BMW M3/M4 workshops and ride-along.

Here is our report:

BIMMERPOST Notes and Impressions

For the M3/M4's full specs, photos, and videos, see our Tech Guide Thread.

Examining M3 and M4 technology

By Jens Meiners


Name:  BBMW_M3_M4_Technology_Days_dj0296.jpg
Views: 23786
Size:  57.4 KB
Thanks, BMW, for the earth-hugging i3 and the i8, but what enthusiasts really care about is the next M3 - and its two-door variation, the M4. Production of the current one has ended in July, while the next models won't go into production before Spring. Why the gap? We hear that BMW has essentially run out of parts to build them.

It means the end of an era: The E90 M3 was fitted with the last naturally aspirated BMW M engine - and it was also the last BMW M to use a dedicated M engine developed from scratch. No more. Despite the attention that BMW's performance division dedicated to the new S55 engine, it is still derived from the ubiquitous N55 3.0-liter straight-six. Moreover, the next M3 and the M4 will be fitted with electric power steering. Is the world coming to an end?

Hardly. We just spent a day at BMW's driving dynamics center in Maisach near Munich, examining prototypes and discussing the car with M GmbH's top brass, including CEO Friedrich Nitschke and M GmbH's engineering chief Albert Biermann. There was no opportunity to get behind the wheel of the M3 or M4, but a "taxi drive" in a prototype with DTM pilot Bruno Spengler easily managed to whet our appetite.

What to expect

As part of BMW's renaming policy, the legendary M3 moniker will henceforth be reserved for the four-door variant; the two-door version, based on what is now called the 4-series, will come as the M4. Both the M3 and the M4 coupe will be launched at the Detroit auto show next January; later next year, there will be an M4 Cabriolet. Despite the industry-wide trend to revert to fabric tops on premium cars, the 4-series convertible gets a heavy and complex hard-top roof, tailored to "lantern parkers" - not least because this roof design can essentially be carried over from its predecessor.

The M3/M4 is brimming with dedicated parts - Albert Biermann says that the content of standalone components amounts to roughly 50 per cent. This includes body, chassis and powertrain components. BMW's goal was not only higher performance, but also less weight. The new model weighs about 175 lbs less than its predecessor and comes in at just below 3300 lbs (with a 90 per cent full tank of gas, but no driver). That's on par with an E46 M3. Somewhat surprisingly, the switch from the V-8 to the turbocharged i-6 contributes only about 20 lbs to the savings.

Name:  ABMWZ_M3_M4_Technology_Days_dj0811.jpg
Views: 23169
Size:  48.9 KB
A veritable powerhouse

The i-6, internally called S55, is the heart of the new car; Norbert Siegl, who was responsible for the development of the all-aluminum powerhouse, maintains that it is essentially a new unit - even though he started out with the BMW AG's N55. The 3.0-liter inline-six will make slightly over 420 horsepower and "far beyond 369 lb-ft," BMW says. Our educated guess is that it will make around 390 lb-ft. The engine is boosted by two relatively small Mitsubishi turbochargers which provide up to 18.1 PSI. (BMW disingeniously sticks to the "Twin Power" designation, which signifies little. The same moniker is stuck to the single-turbo N55 engine.). There is an electromechanical wastegate and a large intercooler, which sits atop the engine - and which is the reason for the massive bulge on the M3/M4's aluminum hood.

The S55 redlines slightly beyond 7500 rpm; peak power is available from around 5000 rpm until 7300 rpm. Maximum torque is produced from under 2000 rpm to over 5000 rpm; there are no spikes in the torque and power curves, and the power rush is absolutely seamless. The S55 uses BMW's Valvetronic variable valve timing and Double-VANOS variable camshaft timing system; it comes with a closed-deck crankcase, LDS-coated cylinder walls and a forged crankshaft. The magnesium oil sump is extra-light, while double-flow recirculation pumps are designed to ensure lubrication of the engine and the turbochargers even on the racetrack.

In "Sport" and "Sport Plus" settings, the turbochargers are "pre-tensioned," which means that they keep spinning at a high rate of speed even after you have taken your foot off the throttle. This trick ensures ultra-quick response times fully comparable to those of a naturally aspirated engine. To bring engine revs down, cylinders are deactivated. The system doesn't work for extended time, but it operates under racetrack conditions and whenever the car senses quick bursts of acceleration and deceleration.

BMW will continue to offer both a six-speed manual and a "wet" seven-speed dual-clutch automatic. The ZF-supplied six-speed manual is 26.5 lbs lighter than the previously used box; the weight difference to the Getrag DCT is even more significant, and on top of that, the manual box doesn't need the oil cooler required by the automatic. But it isn't gimmick-free: Like a Nissan 370Z (whose balky transmission needs it), it automatically blips the throttle during downshifting. Forget about your mastery of heel-and-toe technique.

Thankfully, the straight-six sound in the M3/M4, familiar to E36 and E46 drivers, is all natural; no artificial sound actors (read: no Active Sound) are fitted. Note about Active Sound: we asked and were told by one of the engineers that there was absolutely no artificial sound feature, but others have written today that the M3/M4 will use the speakers to amplify the sound. A request for clarification is in at BMW and we should have an answer by tomorrow morning.

The exhaust system operates in two stages, with the flaps located before the rear silencer. It can be bypassed as a function of load and engine speed. Engineers are still toying with approaches to alleviate the harshness of the switch; one possibility is sequential bypassing - first left, then right, or vice versa.

The engine's impressive power is channeled to the rear wheels through an innovative carbon-fiber propshaft, which is 40 per cent lighter than a conventional driveshaft, reacts more directly, but also costs BMW about twice as much. It is tested for velocities up to 205 mph: "We don't know what the tuners will do to this car," says an engineer. Getting up there will require extensive engine work: In series production trim, the M3/M4 would theoretically top out at around 185 mph. It will, however, be governed to 155 mph or 174 mph, depending on customer specification. No zero-to-sixty times are communicated, but the M3/M4 will significantly better the current M3. Fuel consumption is expected to drop by 25 per cent, which is very good news, considering the thirst of the outgoing V-8.

Name:  ABMW_M3_M4_Technology_Days_dj0089.jpg
Views: 23125
Size:  59.0 KB
Handling the tarmac

For the first time, the rear differential is electronically controlled - and while the regular settings play it safe, M Dynamic mode is configured to allow wheelslip and "encourage drifting." There still is the safety net of the stability control system, but it can be switched off entirely.

The chassis has been massively tweaked to achieve superior stiffness and performance. The front suspension gets aluminum control arms, wheel carriers and subframes; there is a carbon-fiber strut brace up front. In the rear, there is a five-link axle with forged aluminum control arms; the rear subframe is bolted directly onto the body, a motorsports solution which is shared with the M5 and the M6. Forged aluminum wheels are standard; BMW offers both 18-inch and 19-inch versions, while the 20-inch wheels of the M4 Concept won't make it into series production. With either 18- and 19-inch wheels, the M3 and M4 will come with 255/35 ZR rubber up front and 275/35 ZR tires in the rear. The prototypes were fitted with Michelin Pilot Sport tires, but other tire brands will be certified as well.

Compound brakes with four pistons up front and two in the rear are standard; the optional carbon-ceramic brakes come with six pistons in the front and four pistons abaft. An adjustable, adaptive suspension is optional, but the regular suspension represents a "good compromise," according to chief engineer Albert Biermann.

BMW did not shy away from the dreaded move to electric power steering, but engineers solemnly declare they have outdone themselves to achieve a sensitive and direct feel. The EPS system of the regular 3 series was deemed insufficient, and M GmbH developed an entirely new electric power steering unit, which is built by ZF. Late in the development process, feedback from Nürburgring laps conducted by BMW's DTM racers led to subtle recalibrations. Three levels of assistance can be selected. We need to spend time behind the wheel ourselves, but the effort put in by M GmbH is a very positive indicator.

Why it looks like it does

The prototypes we drove were still covered with tape, and a few stylistic elements were concealed - such as the (obviously non-functional) rear diffuser. The real car will look very much like the M4 Concept unveiled at the Pebble Beach Concours d'Elegance in August, although neither the 20-inch wheels nor the wild yellow paint will be offered to customers. Virtually everything else, however, will be on the production cars, including the wider body and those massive front air intakes which channel the air to the "track-ready" cooling system. It includes separate radiators for the turbochargers, the high-temperature and low-temperature water system, and the dual-clutch transmission.

On the M3 and M4, the front fenders and the front hood are made from aluminum instead of steel; the roof, now on both models, is made from carbon fiber. A sunroof is available, but it means a carbon roof delete. Functional "air breathers" and "air curtains" are included, and they feature more prominently than on the regular 4-series. The M4 gets a carbon fiber shield-molded trunk lid with an integrated rear spoiler that recalls the M3 CSL - and continues the distinct contour of the roof. The M3 keeps the trunk lid of the regular 3-series, but it is accentuated by a Gurney flap.

Both the M3 and the M4 retain the headlights of the regular 4-series. Xenon lights will be standard and LEDs optional, even though halogens would have brought the weight further down. But "we didn't want to cheat by offering a standard version that nobody wants," an engineer said. BMW is weighing another option: The M3/M4 could be fitted with a lithium-ion starter battery, such as offered as an option by Porsche, and standard equipment on the Mercedes-Benz S 63 AMG. There is no decision yet.

Today, BMW doesn't talk about the interior; we expect to see a relatively mild variation of the regular interior, a 200-mph speedometer, and the usual array of M-specific buttons around the gear shifter. The seats will be significantly lighter than those on a regular 3- and 4-series.

It will deliver

Could the M3 and M4 have become any lighter or more sporty? Only if the car moves towards a racing specification and by means of decontenting. As it is, it is probably the most extreme offering in a pack of competitors than includes the Audi RS5, the Mercedes-Benz C63 AMG, and soon the Cadillac ATS-V. We can't wait to get behind the wheel.

For the M3/M4's full specs, photos, and videos, see our Tech Guide Thread.


Update: Added Our Ride-Along Video/Interview with Bruno Spengler


Jason is offline   United_States
0
Reply With Quote
      09-24-2013, 08:53 PM   #2
SKBMW
Lieutenant Colonel
 
SKBMW's Avatar
 
Drives: Bicycle
Join Date: Jan 2007
Location: 25° 0′ 0″ N, 71° 0′ 0″ W

Posts: 1,797
iTrader: (0)

Send a message via MSN to SKBMW
Great stuff Jason and Jens!
__________________
SKBMW is offline   No_Country
0
Reply With Quote
      09-24-2013, 08:54 PM   #3
mattkim85
Second Lieutenant
 
mattkim85's Avatar
 
Drives: M5 SG
Join Date: Apr 2011
Location: Los Angeles

Posts: 223
iTrader: (3)

Great read!

And I bet this article really shut some people's mouths on the other thread in regards to weight LOLL 3300lbs. WOW.

Last edited by mattkim85; 09-24-2013 at 09:05 PM.
mattkim85 is offline   United_States
0
Reply With Quote
      09-24-2013, 09:02 PM   #4
Keto
Major
 
Keto's Avatar
 
Drives: F80 M3
Join Date: Jul 2007
Location: N'awlins

Posts: 1,463
iTrader: (1)

Garage List
2011 BMW 550i  [0.00]
2015 BMW M3  [5.00]
Thanks! Can't wait for more interior information too.
__________________
Waiting on redelivery: 2015 F80 M3 SO/SO MT, picked up at Welt 7/1/2014, dropped off in Antwerp 7/11, currently cruising the Atlantic on the Independence II
Keto is offline   United_States
0
Reply With Quote
      09-24-2013, 09:03 PM   #5
SamS
Brigadier General
 
SamS's Avatar
 
Drives: 2013 ActiveHybrid 3
Join Date: Jul 2010
Location: Dallas, TX

Posts: 4,509
iTrader: (0)

Love it!

Quote:
Forged aluminum wheels are standard; BMW offers both 18-inch and 19-inch versions, while the 20-inch wheels of the M4 Concept won't make it into series production.
I, for one, am glad to read this. 20" wheels on a "performance" car the the size of an M3 is borderline ridiculous.

I don't think we've seen a test mule with the 18" wheels? Both the wide-split and close-split 5 star wheels appear to be 19". I like the wide split versions, remind me of BBS FI wheels.
__________________
SamS is offline  
0
Reply With Quote
      09-24-2013, 09:05 PM   #6
Suave
Major
 
Suave's Avatar
 
Drives: 2015 F80 M3
Join Date: Aug 2013
Location: Montgomery County, PA

Posts: 1,179
iTrader: (0)

Outstanding comprehensive summary of new features and helpful to put specs in perspective. Thanks
__________________
2015 /// F80 M3 / BIMMERPOST ED Group Lead-Jun 23 2014 / AW-Full SO / Executive / Lighting /
DCT / M Suspension / Black 19's / Side-Top View Cameras / HK / Enhanced USB-Bluetooth /
MODS (COMPLETED): CXP 45% Tint, IND Ext Gloss Blackout kit M Performance Pedals, CF V Caps: .
Coming Soon: M Perf CF Diffuser, Spoiler, Exhaust Tips, CF-Alcantara Brake Handle, CF Shifter Cover, MPE
Suave is offline   United_States
0
Reply With Quote
      09-24-2013, 09:05 PM   #7
e92dave
Private
 
Drives: 08' e92 335i
Join Date: Jan 2013
Location: boston, ma

Posts: 92
iTrader: (0)

No surprises here but good to hear this info has finally solidified as certainty
e92dave is offline  
0
Reply With Quote
      09-24-2013, 09:08 PM   #8
SomeRandomer123
Colonel
 
SomeRandomer123's Avatar
 
Drives: F30 328i Luxury - Sport Auto
Join Date: May 2011
Location: Lancashire, North West England, UK

Posts: 2,538
iTrader: (0)

Excellent!
__________________

Gone: 2006 BMW E60 520d SE 6MT
Gone: 2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
My 328i initial thoughts + media!http://www.f30post.com/forums/showthread.php?t=712673
SomeRandomer123 is offline   England
0
Reply With Quote
      09-24-2013, 09:08 PM   #9
desertfox73
Newbie
 
Drives: 2010 E93 M3
Join Date: Jun 2011
Location: Dallas, Texas

Posts: 267
iTrader: (0)

Thanks for all the info! Great end to a long day...can't wait to see these in the flesh.
__________________
2010 Jet Black/Fox Red E93 M3
2008 K1200S (2-wheel)
desertfox73 is offline  
0
Reply With Quote
      09-24-2013, 09:09 PM   #10
Jesal@IND
 
Jesal@IND's Avatar
 
Drives: F10 M5
Join Date: Feb 2011
Location: Chicago, IL

Posts: 1,030
iTrader: (1)

Garage List
2009 BMW M3  [5.00]
Send a message via AIM to Jesal@IND
Great read! So the front fenders will be aluminum instead of plastic? No more creaks!
__________________
Jesal@IND is offline   United_States
0
Reply With Quote
      09-24-2013, 09:10 PM   #11
GOLFFRR
 
GOLFFRR's Avatar
 
Drives: Golf Cart
Join Date: Mar 2009
Location: Solvang, CA/Camarillo, CA

Posts: 15,390
iTrader: (4)

!!
__________________

BEFORE YOU BUY YOUR NEXT BMW, EMAIL US FIRST WE CAN HOOK YOU UP!
Need a quote or assistance from David? GO HERE-->http://www.bimmerdavid.com/#!blank/c1r1e
Davids current ED Special M235/228--> http://www.2addicts.com/forums/showthread.php?t=1013211
GOLFFRR is offline  
0
Reply With Quote
      09-24-2013, 09:12 PM   #12
signes
Brigadier General
 
signes's Avatar
 
Drives: E90 M3
Join Date: Sep 2008
Location: Spinnin at 8k

Posts: 4,178
iTrader: (3)

Great write up, thanks!
__________________
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18
signes is offline   United_States
0
Reply With Quote
      09-24-2013, 09:13 PM   #13
paddy335
Captain
 
Drives: 335i Touring; X5 40d
Join Date: Jun 2011
Location: New Zealand

Posts: 995
iTrader: (0)

I just creamed my pants
paddy335 is offline  
0
Reply With Quote
      09-24-2013, 09:15 PM   #14
b33g33
Give '///M' Hell!
 
b33g33's Avatar
 
Drives: Einser Rex
Join Date: Jun 2011
Location: Atlanta, GA

Posts: 1,305
iTrader: (0)

Great stuff guys!

Thanks for all the updates. You eat the general blogs by more than a few minutes!

I'm really looking forward to seeing how the M3 has moved the bar forward from the 1M
__________________
The 1 series M is the most badass, coolest, sickest BMW to debut since the 1988 M3. The E30 M3 finally has a successor. Please welcome the stupidly fast, wickedly tempered, awkwardly named, possibly perfect little son of a benchmark - Automobile Magazine, August 2011

b33g33 is offline   United_States
0
Reply With Quote
      09-24-2013, 09:17 PM   #15
300hp
Colonel
 
Drives: X5 & 335xi
Join Date: Dec 2012
Location: USA

Posts: 2,671
iTrader: (0)

I would go as far as saying why buy anything else this side of US100,000. This is what I am shooting for in a couple of years time. Good job BMW M
__________________
EBII 2014 335i xDrive
335HP, Sport AT, 19" Wheels, MPE, Prem, Tech, Cold, HK, Driver Assist & DH pkgs

Deep Sea Blue Metallic 2013 X5 35d Sport
Prem, Convenience, Cold and Premium Sound packages
300hp is offline  
0
Reply With Quote
      09-24-2013, 09:21 PM   #16
JulieDriving
Female driving enthusiast :P
 
JulieDriving's Avatar
 
Drives: Bimmer
Join Date: Nov 2009
Location: Ontario, Canada

Posts: 2,308
iTrader: (0)

Garage List
Those Bimmerpost editors do it again!
__________________
2013 M3 coupe (Azurite Black, Black, Piano Black)
+ miata nut (2 miatas) + Mk6 GTI 5-door hatch (our mini-SUV )
JulieDriving is offline  
0
Reply With Quote
      09-24-2013, 09:22 PM   #17
Bennu
Colonel
 
Bennu's Avatar
 
Drives: BMW Coupe
Join Date: Mar 2007
Location: West Palm Beach

Posts: 2,169
iTrader: (0)

Garage List
2014 BMW/M235i  [0.00]
Wow Amazing read! So happy to hear about the weight 3300lbs is really great. For some reason I have a feeling a CSL version will be in the works. Not sure if it will reach US shores but another 150 - 200 lbs of weight less with say 450HP and more tq would make this an even more amazing track car. Great Job BMW M GmbH!
__________________
------------------------------------------------
Lack of money is not the problem. It is merely a symptom of what's going on inside of you! - T Harv Eker

Bennu is offline   United_States
0
Reply With Quote
      09-24-2013, 09:25 PM   #18
avsbmw
Captain
 
Drives: 07 Z4MC
Join Date: Jul 2009
Location: Hampton Roads VA

Posts: 814
iTrader: (1)

This is great. Can someone say game changer??
avsbmw is offline  
0
Reply With Quote
      09-24-2013, 09:27 PM   #19
signes
Brigadier General
 
signes's Avatar
 
Drives: E90 M3
Join Date: Sep 2008
Location: Spinnin at 8k

Posts: 4,178
iTrader: (3)

ETA for video?

Edit: Never mind.
__________________
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18
signes is offline   United_States
0
Reply With Quote
      09-24-2013, 09:28 PM   #20
SlowSaloonM3
Major General
 
SlowSaloonM3's Avatar
 
Drives: m3 saloon in granny mode.
Join Date: Dec 2009
Location: lost angeles

Posts: 6,917
iTrader: (0)

Its amazing the technology put into this. Or rather, the package of technology that went in.

I think the car is gonna be pretty pricey but ill take a civic m4 with dct and dynamic handling please.
__________________
the intardnet is 95% troll, 5% actual good shit. so are my posts.
my channel: pkim
SlowSaloonM3 is offline  
0
Reply With Quote
      09-24-2013, 09:30 PM   #21
bselim3
New Member
 
Drives: 2012 135i 6mt
Join Date: Jun 2013
Location: Chicago

Posts: 11
iTrader: (0)

"In "Sport" and "Sport Plus" settings, the turbochargers are "pre-tensioned," which means that they keep spinning at a high rate of speed even after you have taken your foot off the throttle. This trick ensures ultra-quick response times fully comparable to those of a naturally aspirated engine."

This is what I was afraid of, I like BMW's solution though. Hopefully it works well.
bselim3 is offline  
0
Reply With Quote
      09-24-2013, 09:32 PM   #22
davesaddiction
is fast cars
 
davesaddiction's Avatar
 
Drives: '08 E90 M3 6MT SSII BPM Stg II
Join Date: May 2012
Location: Tulsa

Posts: 1,495
iTrader: (0)

The weight (and power to weight) compared with its competitors is truly impressive.

I hope the feel is still there, though. If they've nailed their EPS as well as Porsche, we've got a winner.

Hope the engine proves to be as robust as the S65.

Now, what's the weight target of the M2?!
__________________
Daddy's Rocket Sled! _
Clarkson: "It is... pretty much perfect... Why don't I have one of these cars?"
Harris: "The saloon is definitely the M3 of choice."
davesaddiction is offline   United_States
0
Reply With Quote
Post Reply

Bookmarks

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
Forum Jump


All times are GMT -5. The time now is 05:42 AM.




f80post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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