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      03-22-2007, 09:27 AM   #1
ukm3
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Lighter and MORE Power

Only weeks after BMW revealed their M3 Concept car in Geneva, they have released detailed information about the new V8 engine that will go into the production model. We are currently waiting for an English translation of the entire kit, and as soon as we receive it, we will publish. However, in the mean time here are the main facts:

22% more power

8% less fuel consumption

Displacement 3,999 cm3

Power 309 kW/420 HP

Torque 400 Nm/295 ft-lb @ 8,300 rpm

Double VANOS with 8 individual throttle butterflies for more spontaneous reaction time

Fulfills EU4 and LEV 2 emission requirements in Europe and US respectively

Brake Energy regeneration with intelligent regeneration

Weight 202 Kg (15kg lighter than S54 Inline 6 cylinder)

Despite an additional two cylinders, BMW has reduced the weight of the engine to be 15kg lighter than the cast steel S54 inline 6 cylinder in the previous generation E46 M3. Through advanced construction techniques and the use of aluminum block and composite materials the engine weighs a mere 202 Kg.

Although the torque figure is uninspiring, 85 percent of the maximum torque (340 Nm/250 ft-lb) is available from 2000 rpm up to 6,500 rpm creating an almost flat torque curve across this wide rev range. This translates into a whole lot of power readily available during most driving conditions. Now that inspires.
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      03-22-2007, 01:29 PM   #2
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Quote:
Originally Posted by ukm3 View Post
22% more power
8% less fuel consumption
Is this reference to S54 engine? If so even without HPI, BMW still did a good job here on the new V8.
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      03-22-2007, 03:27 PM   #3
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Road and Track article

Check out the updated blurb on Road and Track. They have new estimated peformance numbers.

http://www.roadandtrack.com/article....rticle_id=4998
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      03-22-2007, 03:37 PM   #4
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impressive. but what is the source? and has it been confirmed.
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      03-22-2007, 03:50 PM   #5
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Quote:
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impressive. but what is the source? and has it been confirmed.
Well the source is Road & Track, though I would imagine the price is just an estimate…?
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      03-22-2007, 05:02 PM   #6
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Yeah, no way MSRP is $65k.
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      03-22-2007, 06:05 PM   #7
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Quote:
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Yeah, no way MSRP is $65k.
No, but I'm sure they are estimating that $65K might be the price for a well equipped model.
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      03-22-2007, 06:29 PM   #8
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No, but I'm sure they are estimating that $65K might be the price for a well equipped model.
I am ok with that. Plus, they definately aren't putting it close to the RS4.
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      03-23-2007, 09:05 AM   #9
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Anybody else see a fundamental problem with this graph? Torque and HP lines should ALWAYS cross/be the same at 5252 RPM... since HP = TQ * RPM / 5252
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      03-23-2007, 03:40 PM   #10
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Quote:
Originally Posted by RiXst3r View Post


Anybody else see a fundamental problem with this graph? Torque and HP lines should ALWAYS cross/be the same at 5252 RPM... since HP = TQ * RPM / 5252
No, you are reading the scales wrong. At 5252, both HP and TQ are the same at ~ 295ish.
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