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Old 11-27-2008, 08:08 AM   #1
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Next generation M cars are going turbo

I knew this was going to happen. It was matter of time. Now the fun really begins.

Tough emissions standards worldwide and soaring manufacturing costs in Germany are behind BMW's decision to switch from high-revving, naturally aspirated engines in its M high-performance vehicles to turbocharged direct-injection powerplants, beginning as early as next year.

The move, which could alter the character of BMW M models, places question marks over the immediate future of the M3's 4.0-liter V8 and the M5's 5.0-liter V10. Both engines will make way for forced-induction engines in coming years, according to high-ranking BMW sources.

The first M vehicle to make the move to the new turbo powerplants is the X6 xDrive M, which will challenge the Porsche Cayenne GTS and the Mercedes-Benz ML63 AMG.

Set to appear next June, the X6 xDrive M will be the first model to run BMW M's new twin-turbocharged V8. This engine is also earmarked for the next-generation M5, due out in late 2010.

Based on the standard X6 xDrive 5.0i's 4.4-liter 90-degree V8, the new twin-turbo unit is said to match the current M5's naturally aspirated 5.0-liter V10 for power at 500 hp, while providing as much as 516 lb-ft of torque.

This should be enough to provide the M-powered X6 with 0-to-60 mph acceleration of less than 5 seconds and top speed limited to 155 mph.

"In terms of overall performance, the new engine doesn't give anything away to the powerplant we run now, but it delivers much better consumption and lower emissions," a senior BMW M official told AutoWeek
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Old 11-27-2008, 10:56 AM   #2
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so the M5 is going back to V8, but now with turbo, so then will the me go back to I6 with turbo????

going to miss the high-revving naturally aspirated engines !!!!!!!
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Old 11-27-2008, 11:03 AM   #3
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That's going to be the trend among automakers: Turbo 4s instead of 6s, turbo 6s instead of 8s, etc., all in the name of fuel efficiency and improved carbon emissions.
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Old 11-27-2008, 12:30 PM   #4
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Dakar M3 Track Build Thread
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Old 11-27-2008, 01:58 PM   #5
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Think of all the tuning capabilities though! Look at what the aftermarket has done to the 135i/335i/535i/x635i motor.

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Old 11-27-2008, 02:18 PM   #6
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boost is your best friend
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Old 11-27-2008, 04:33 PM   #7
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I don't see a problem here.... as long as its reliable and tested, it shouldn't be a detriment. If anything, it's got win written all over it.
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Old 11-27-2008, 09:52 PM   #8
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Correct me if I'm wrong, but isn't the new x6 5.0i already in compition withthe ml 63? And what is going to be the difference with the x6 5.0i and the m x6?
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Old 11-27-2008, 10:01 PM   #9
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Why not keep the V8 in the M3 and toss in 2 turbos?
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Old 11-27-2008, 11:16 PM   #10
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You only got to worry when they go Diesel for M cars
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Old 11-28-2008, 10:12 AM   #11
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Whats the life span of a turbo,,, maybee 100k if you let it warm up and cool down properly? Long term I dont like it at all, but you gotta love the torque of a turboed engine
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Old 11-28-2008, 11:18 AM   #12
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life span is much longer then that with factory turbo cars. they don't run much pressure stock. its when turbos start running 15psi and higher does the life span start to really shorten (depending on the turbo)
i doubt bmw's 8psi does anything at all on life span to the turbos.
so my next m3 will probably be turbo.
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Old 11-28-2008, 11:29 AM   #13
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A sad day for the automotive industry. HP isn't everything... go drive a (tuned) 335i, then hop straight into an E92 M3... you'll see what i'm talking about. You just get this "disconnected" feeling in the I6-TT motor (albeit torquey). TPS maps can only be altered so much, you will never get rid of annoying turbo lag.
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Old 11-28-2008, 11:54 AM   #14
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NA is the only way for a M car considered that they are built to be taken to the track. Boost is your worst enemy there. Espically when heat starts to build up. Id take NA over boost any day.
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Old 11-28-2008, 01:36 PM   #15
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^^ exactly my point. Day-to-day driving wise, the torquey 3.0L-TT motor is great for zipping through traffic. On a road course, there's nothing like the crisp throttle response of an N/A motor when doing heal/toe manuvers and mid corner modulation. I think BMW ///M division should keep their 120+HP/Liter N/A motors and focus on SERIOUSLY DIETING THEIR CARS. Extensive use of carbon composites, aluminum etc.. whatever it takes to get them 250+kg lighter than their non-M versions.
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