BMW M Cars and Turbos - Are they just following the trend?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • downforce22
    No R3VLimiter
    • Aug 2009
    • 3189

    #1

    BMW M Cars and Turbos - Are they just following the trend?

    Its no secret BMW was experimenting with turbos in the 70's and 80's. The 2002 turbo was one production car and the e23 745i was another. Just before the first M car came out too. But then BMW strayed away from the turbo. Was it because of the fuel shortages of the 70s or because of the complex tuning required to fuel a turbo? Something else?

    All M cars throughout the 90's and 2000's were naturally aspirated until the X6 M came out. Some people cried blasphemy. How dare it not have a rev happy n/a engine powering it. Well it has been a few years since then so people have been able to drive and feel out the turbo bmw engines.

    I have no experience and am wanting to know your thought/ experiences of those who have driven them. Is BMW just joining the club of turbo engines to go green or was it just time for bmw to dive back into turbos? I think they realized it was the lightest way to make power with some advancements in tuning and turbo efficiency.


    Interesting article posted on the subject, with a few quotes/pictures from it below. What do you think?




    The KKK turbo was placed on a shelf temporarily by the brand and began collecting dust. Four years went by and in early 1980, BMW realized they needed to distinguish the luxurious 7 series from competitors and decided to throw the same KKK turbo on the bullet proof M30 that was already powering the 5 series and seven series. 1980 came and the 745i was offered for sale as BMW’s second venture into turbocharging. This unsuspecting sleeper caged a 3.2 liter engine, called M102 that loved blasting down the autobahn at triple digit speeds.


    Two exciting turbocharged models are currently available in the BMW lineup. The first is the futuristic i8. Based on the popular BMW Concept Vision Efficient Dynamics, the i8 offers fuel economy, but more importantly, does not sacrifice power. All too many hybrids focus on fuel economy and not the complete driving experience. Not this one. The i8 is powered by a 1.5 liter turbocharged engine like the Brabham Formula 1 car. Though only 3 cylinders, the engine makes 228 horsepower and is paired up with an electric motor that powers the front wheels for an additional 129 horsepower. The electric engine provides instant torque and can be engaged simultaneously with the gasoline engine. Expected figures put the car at 0-60 mph in 4.5 seconds, providing a jaw dropping combined 357 horsepower and 420 ft-lbs of torque.
    318iS Track Rat :nice: www.drive4corners.com
    '86 325iX 3.1 Stroker Turbo '86 S38B36 325

    No one makes this car anymore. The government won't allow them, normal people won't buy them. So it's up to us: the freaks, the weirdos, the informed. To buy them, to appreciate them, and most importantly, to drive them.
  • Raxe
    R3V Elite
    • Nov 2006
    • 5346

    #2
    I'm pretty sure it's entirely because of emission and fuel economy restrictions. Engines like the awesome S85 are a thing of the past because of garbage like CAFE, BMW has to play along because their largest market is America.

    >> 1988 3.1 ITB E30 /// 2002 E46 M3 6MT / 2008 335xi 6MT / 1991 S38B36 E30 (sold)

    Comment

    • einhander
      R3VLimited
      • Apr 2004
      • 2024

      #3
      Originally posted by Raxe
      garbage like CAFE
      It's not garbage. It's to keep the air breathable and the product sustainable.

      Engine development has always been about increasing efficiency. Turbos, direct injection...all that are part of it. I don't think its bandwagoning as much as it is the state of the technology. Pretty soon we'll have electric turbos.
      2011 1M Alpine white/black
      1996 Civic white/black
      1988 M3 lachs/black

      Comment

      • Wanganstyle
        R3VLimited
        • Apr 2010
        • 2828

        #4
        Pretty soon we won't have electric turbos; as NOW we have ELECTRIC CARS.

        Tesla. Everywhere. Faster than 90% of BMW's for everyday use

        No need for turbocharging or supercharging when the traditional gas engine has been removed.

        BMW has electric cars on the road already; BMW Active E cars have been running around the Bay Area a few years now.


        Sent from my iPhone using Tapatalk - now Free
        OBD1 M54/M52TU swap as a M50b25

        Z4 non powered steering rack fits e30



        Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

        Comment

        • slammin.e28
          שמע ישראל
          • May 2010
          • 12054

          #5
          Turbos are the most efficient way to get power. Using a wasted resource, exhaust. N/A cars just dispense of it out of the tail pipe. Turbos use this to generate power.

          With new emissions standards, and the demands to make more and more power each generation, this makes the most sense.
          1974.5 Jensen Healey : 2003 330i/5

          Comment

          • e304me
            E30 Fanatic
            • Feb 2006
            • 1374

            #6
            I think the main reasons are fuel economy, but also another HUGE reason is now there is technology for essentially lagless turbos.

            Comment

            • tjts1
              E30 Mastermind
              • May 2007
              • 1851

              #7
              Originally posted by Raxe
              I'm pretty sure it's entirely because of emission and fuel economy restrictions. Engines like the awesome S85 are a thing of the past because of garbage like CAFE, BMW has to play along because their largest market is America.
              The CO2 limits in Europe are far more restrictive than CAFE, thats why they're going turbo. With CAFE the manufacturers can at least buy their way out of it, not so in Europe. These are absolutely limits.

              Comment

              • bighitbiker3
                Member
                • Jun 2013
                • 84

                #8
                I was skeptical about BMW straying away from NA...until I drove one. My gosh they're a blast

                Comment

                • nrubenstein
                  No R3VLimiter
                  • Feb 2009
                  • 3148

                  #9
                  The answer is that the turbo motors allow them to achieve a level of drivability on the street that used to only be available from engines with massive displacement. And because high revving, low torque motors are only more fun when you can tach them out.
                  2006 GMC Sierra 2500HD 4WD LBZ/Allison
                  2002 BMW M3 Alpinweiß/Black
                  1999 323i GTS2 Alpinweiß
                  1995 M3 Dakargelb/Black
                  - S50B32/S6S420G/3.91
                  1990 325is Brilliantrot/Tan
                  1989 M3 Alpinweiß/Black

                  Hers: 1996 Porsche 911 Turbo Black/Black
                  Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

                  sigpic

                  Comment

                  • cgk_iii
                    Mod Crazy
                    • Dec 2012
                    • 616

                    #10
                    I drove a 2013 335i and i believe those have a i4TT ? Correct me if im wrong. But it has two modes. Comfort and sport. Flip it on sport mode and that car has your back against your seat like it was meant for the track. Personally im all about N/A motors but once i got in this thing and drove it i wouldn't mind a turbo on my m20..
                    sigpic

                    Comment

                    • Kevinl
                      E30 Modder
                      • Oct 2012
                      • 897

                      #11
                      The 335i uses a single turbo 3.0 liter straight six

                      The 320i& 328i use a turbo 4 banger
                      1989 BMW 325is Lachsilber metallic 5 speed
                      2007 BMW 335i KARMESINROT 6 Speed manual
                      2011 BMW X5 35I

                      Comment

                      Working...