In Depth: 2007 BMW E92 M3 Awesome 420bhp at 8400rpm - Zerotohundred.com
Zerotohundred.com
Home Features News Forums The Marketplace Showcase Videos TIMETOATTACK! Store!
Go Back   Zerotohundred.com > Content > Automotive News


Reply
 
LinkBack Tools Search this Thread Display Modes
Old 03-29-2007, 11:29 PM   #1
Senior Member
 
russwestwood's Avatar
 
Join Date: Feb 2006
Posts: 544
Likes: 0
Liked: 0 / 0 Posts
Default In Depth: 2007 BMW E92 M3 Awesome 420bhp at 8400rpm

BMW’s ‘Efficient Dynamics’ philosophy goes into the new M3 Engine



The very name M3 symbolises performance and accentuates superior power. The secret of the M3’s success is its unique blend of racetrack and daily driving abilities. During the 77th Geneva Motor Show from the 8th to the 18th of March, the M3 Concept was finally unveiled, in a ‘chrome shadow’ paint finish. The first thing that catches the eye is the CFRP (Carbon Fibre Reinforced Plastic) roof panel, as previously introduced on the limited-edition E46 M3 CSL Coupe and on the current M6 Coupe. This dominating feature of Formula 1-class material is left visible and clear coated to exhibit technology and remain as lightweight as possible. It also makes the vehicle’s height appear lower than one would perceive, increasing the affect of its wide stance and low centre of gravity.



The lightweight aluminium engine compartment lid shapes a wide and robust bulging curvature known as the ‘Powerdome’, complete with heat escape vents. Sharply defined wheel arches and 20mm wider front fenders house the full-aluminium suspension assembly and huge 19” Y-spoke rims which weigh a mere 8 kg each. Symbolising the car’s motoring spirit are the 3 large cool air intakes at the front with fog lamps missing altogether. Another cooling feature is the trademark M-style side vents with integrated three dimensional indicating lights.

2008 BMW E92 S65B40 V8 M3

The M3’s sidewalls are made from an advanced synthetic material. M-style aerodynamic side mirrors have also been specially designed to reduce drag. A discreet bootlid spoiler (also known as the Gurney Flap), sports side skirts and rear diffuser guarantee the required downforce to keep this monster firmly planted. The look of the rear diffuser is enhanced by the subdividing modelled struts above the quad tailpipes, creating a somewhat similar look as the front intakes.

2008 BMW E92 S65B40 V8 M3

Right, that’s enough about the exterior, now lets get down to the engine. The biggest change in the new M3 is probably its transformation from the previous 3.2 litre in-line 6 powerplant on the E46 to the new 4.0 litre V-8 (banked at 90 degrees) on this new BMW E92 M3. The reason for moving away from the iron-block 3.2 litre straight-6 to a V-8 is not because Formula One went from V-10s to V-8s in the 2006 season as speculated. Helmut Himmel, head of M engine project said that the actual reasons are due to concerns over Euro5 and CARB emissions regulations and also the fact that the space between cylinders sat at just 4mm apart, which is right at the limit before head gasket troubles creep in.

2008 BMW E92 S65B40 V8 M3

Himmel also says that they already had in mind way back in 1999, the intention to create an eight cylinder version of the 5.0 litre V-10 S85B50 (for the M5 and M6) for the future M3. To further understand the differences between the previous and new M3’s engines, lets make some direct comparisons.

2008 BMW E92 S65B40 V8 M3

E46 M3
-    S54B32, 3.246 litre straight-6
-    343bhp (3rd Gen M3)
-    weighs 212 kg
-    length 765mm
-    Bore 91mm
-    Stroke 87mm

E92 M3
-    S65B40, 3.999 litre V-8
-    420bhp
-    weighs 202kg
-    length 734mm
-    Bore 92mm
-    Stroke 75.2mm

Straight away one would notice that the new M3’s engine has a 77 horsepower increase despite being lighter than the former. This is thanks to the lightweight crankcase from BMW in Landshut, aluminium cylinder heads from Hydro Aluminium in Austria and die-cast magnesium cylinder head covers from chainsaw maker Stihl. 295 pound-foot is the max torque figure, while at least 251 lb-ft of that (85%) is available from 2100rpm onwards. The V-8 has a shorter stroke than the previous M3, enabling it to attain high-revs much more willingly, limited to 8400rpm to ensure reliability. The compression ratio is set at a whooping 12.0:1, while at idle is a silent 640rpm rumbling monster.

2008 BMW E92 S65B40 V8 M3

Double or Bi VANOS continuously variable intake and exhaust cams provide a wide powerband starting low in the rev range, and does not require a high-pressure oil arrangement unlike on the V-10. The estimated 0-100km/h time for the new M3 is 4.9 seconds, which is probably a rather conservative figure based on these figures.

2008 BMW E92 S65B40 V8 M3

Although the V-10 derived S65B40 is pretty much an M5/M6 engine with 2 of its cylinders chopped-off, it’s still a true force to be reckoned with. Come to think of it, the 4.0 litre V-8 is quite like two 2.0 litre in-line 4 cylinder Mitsubishi EVO engines bolted together, but without the turbo of course. BMW spokespersons assure the public that there will never be a turbo or supercharged version from the factory. Neither will there be a hardcore racing version since the 4.0 litre capacity does not meet the current FIA class designations.

2008 BMW E92 S65B40 V8 M3

Herbert Bayerl, head of M Engine Control unit, says that the MS S65 ECU for the V-10 and MS S60 ECU for the S65B40 created by Siemens may look similar, but the V-8’s computer is enhanced to make over 200 million calculations per second. The former S54 M3’s ECU was only capable of up to 25 million calculations per second.

2008 BMW E92 S65B40 V8 M3

New lightweight individual spark coils, one per cylinder, with integrated knock/misfire sensors, made in Germany by the American company Pulse, further enhance the new M3. Both Himmel and M engine development director Herbert Vögele express that this is a major step in advancement over the 2 bolt-on 5-cylinder sensors still used in the S85 V-10. Analysing misfire upon individual cylinders eliminate knocking and uncomplicated onboard diagnostics. The 8 units combined are also lighter than both sets of sensor panels on the M5 and M6.

2008 BMW E92 S65B40 V8 M3

Due to its shorter length than the V-10 and straight-6, the V-8 is placed further back in the engine bay, behind the front axle with 2 actual mounting points. The new M3 uses a 2 piece wet-sump arrangement, with a small sump forward of the front axle subframe, and a larger sump towards the rear. Only 2 oil pumps are used, unlike the V-10’s 3 pumps. 10.5 litres of Castrol 10W60 is used from the factory, whereas only 8.8 litres of engine oil will be required during oil and filter changes.

2008 BMW E92 S65B40 V8 M3

The ‘Efficient Dynamics’ philosophy is also reflected in the power supply, as the alternator is disconnected form charging the battery during accelerating and braking to heighten fuel and power efficiency. Journalist report that the BMW M testing division uses the same setup employed by F1 teams in endurance and stress testing. In the name of science, the unlimited S65 V-8 achieved a top speed of 294 km/h, compared to the set speed-cut at 250 km/h on the production car.

2008 BMW E92 S65B40 V8 M3

A dual DSG clutch replaces the SMG transmission, and a 6-speed manual, rear-wheel drive setup is incorporated, similar to the V-8 testing bench pictured here. Just how good the drive feel will be and how this German brute performs, can only be expected after the official launch in a few months time.


Last edited by russwestwood; 03-30-2007 at 10:55 PM.
russwestwood is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 10:52 AM   #2
Senior Member
 
Edward Chew's Avatar
 
Join Date: Jun 2006
Location: Kuala Lumpur
Posts: 1,325
Likes: 11
Liked: 134 / 24 Posts
Default

"Due to its shorter length than the V-10 and straight-6, the V-8 is placed further back in the engine bay, behind the front axle with 2 actual mounting points."

Waw. Then it has become a mid engine car.
Edward Chew is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 11:54 AM   #3
Ti-VCT just kicked in yo!
 
infinity.melvin's Avatar
 
Join Date: Jul 2006
Location: kuala lumpur
Posts: 1,611
Likes: 553
Liked: 146 / 87 Posts
Default

wow 4.0.. imagine the price of the roadtax in msia
infinity.melvin is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 01:28 PM   #4
Senior Member
 
Join Date: Sep 2005
Location: Kuala Lumpur
Posts: 1,861
Likes: 1
Liked: 8 / 7 Posts
Default

we are talking about V8 here man ... monster engine

wonder whether the exhaust sound gonna be the same like american V8 muscle cars ...
JaHaX is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 02:55 PM   #5
Senior Member
 
si|verfish's Avatar
 
Join Date: Apr 2004
Location: PJ
Posts: 6,427
Likes: 0
Liked: 0 / 0 Posts
Default

Just being pedantic here; the 4.0 litre V8 unit here doesn't actually produce 420bhp. Ze Germans use PS and 420PS is equivalent to 414bhp.
__________________

:adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore:
si|verfish is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 04:56 PM   #6
Senior Member
 
russwestwood's Avatar
 
Join Date: Feb 2006
Posts: 544
Likes: 0
Liked: 0 / 0 Posts
Default

Well, 420bhp was refering to UK metric hp (4500kg-m/min) not the US imperial hp (550ft-lb/sec or 745.5watt), my mistake for not being specific.
But then again, if I was pedantic, I would say that there are also bound to be minor differences in horsepower ratings using fuels of different octanes from different countries, air intake temperatures, and etc... the list goes on.
Needless to say, there is speculation about a future 2nd and 3rd gen V-8 M3 of even greater outputs, towards the 500 hp mark.
__________________
To accelerate or not to accelerate, that is the question..... - = http://ofloveandcarbonfibre.blogspot.com = -

Last edited by russwestwood; 03-30-2007 at 05:08 PM.
russwestwood is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 05:12 PM   #7
Senior Member
 
faisal's Avatar
 
Join Date: Oct 2004
Location: The Valley
Posts: 1,926
Likes: 20
Liked: 56 / 29 Posts
Default

BMW M should lop off another 2 cylinders , making it a V6 with 100+bhp per litre and stuff it in the 1-Series, rework the suspension and voila a REAL HOT HATCH.

As to the V8 sounding american, if it sounds half as good as the e39 M5's V8 it'll be awesome.

Last edited by faisal; 03-30-2007 at 05:15 PM.
faisal is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 06:47 PM   #8
Chosŏn Inmin'gun 4.25
 
Join Date: Jun 2005
Location: Kuala Lumpur
Posts: 2,530
Likes: 756
Liked: 428 / 109 Posts
Default

haha i was right.. 4.0 V8.. because the previous was a 3.-something.. haha.. where is that guy I bet with?
ultimatevolution7 is offline   Reply With Quote Share with Facebook
Old 03-30-2007, 08:09 PM   #9
Senior Member
 
Join Date: Nov 2004
Posts: 1,170
Likes: 1
Liked: 0 / 0 Posts
Default

wei bro got performance figure or not..........this car can run with ferrari f430 or not.......
jeffblazed is offline   Reply With Quote Share with Facebook
Old 03-31-2007, 12:45 AM   #10
Senior Member
 
si|verfish's Avatar
 
Join Date: Apr 2004
Location: PJ
Posts: 6,427
Likes: 0
Liked: 0 / 0 Posts
Default

Emm...it'll probably need another 80bhp and it'll also have to go on a serious diet to compete with the likes of the F430.

It is inevitable that the new M3 would sport a 4.0 V8 with the way things are going in the automotive industry. Everything gets bigger and heavier (thanks to more equipment and electronic gubbins) and thus the need for more power. Not to mention the Audi's RS4 already sports a kickass V8 of their own, so BMW needs an answer.

No point for a V6 either as they have already got a better alternative in their famed straight 6s.
__________________

:adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore: :adore:
si|verfish is offline   Reply With Quote Share with Facebook
Old 03-31-2007, 07:41 PM   #11
Senior Member
 
Join Date: Nov 2004
Posts: 1,170
Likes: 1
Liked: 0 / 0 Posts
Default

just have to wait for top gear to trash this car........
jeffblazed is offline   Reply With Quote Share with Facebook
Old 04-01-2007, 10:53 AM   #12
Senior Member
 
Avanzato X4's Avatar
 
Join Date: Feb 2004
Location: Wilayah KL
Posts: 283
Likes: 1
Liked: 3 / 2 Posts
Send a message via ICQ to Avanzato X4
Default

ultimate driving machine! :shades_smile:
__________________

Avanzato X4 is offline   Reply With Quote Share with Facebook
Old 04-01-2007, 10:41 PM   #13
Senior Member
 
crazykatak's Avatar
 
Join Date: Mar 2006
Location: Subang Jaya
Posts: 791
Likes: 129
Liked: 45 / 40 Posts
Default

music to the ears..
crazykatak is offline   Reply With Quote Share with Facebook
Old 04-02-2007, 01:05 AM   #14
Senior Member
 
detomaso_runna's Avatar
 
Join Date: May 2005
Location: PeNAnG
Posts: 1,356
Likes: 13
Liked: 30 / 17 Posts
Send a message via MSN to detomaso_runna Send a message via Yahoo to detomaso_runna Send a message via Skype™ to detomaso_runna
Default

2 words from me..... I LIKE
__________________
detomaso_runna is offline   Reply With Quote Share with Facebook
Old 04-02-2007, 07:01 AM   #15
'(00) Contributor / Mod
 
Izso's Avatar
 
Join Date: Mar 2004
Location: KL
Posts: 10,056
Likes: 4,466
Liked: 4,899 / 2,107 Posts
Default

HAHAHA.. I just noticed something.

Imagine during the day and you see in your rear view mirror - a fat kid with dimples smiling at you.. ---> http://www.zerotohundred.com/news/ma...92_m3_v8_5.jpg
Izso is offline   Reply With Quote Share with Facebook
Reply

  Zerotohundred.com > Content > Automotive News

Previous: Previous Thread | Next Thread :Next
Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes



Latest Posts
  [WTS] Osram Cool Blue Intense H4 Bulb
Last Post Today 03:55 PM
atos 1,0a
Last Post Today 02:51 PM
Nissan gtr
Last Post Today 02:44 PM
  SUPER DEAL Audi A8 Quattro
Last Post Today 01:12 PM




2000 - 2014 Zerotohundred.com - The Automotive Lifestyle Network | Tags | Terms of Use | Visitor Agreement | Privacy Policy | Contact Us | Privacy Statement | Top