• BMW Blog, Performance, Tuning, Motorsport, and Modification News RSS Feed

      Published on 07-04-2010 01:53 PM
      Article Preview

      This is pretty impressive. Car belongs to j x k.

      Details:

      Car:
      135i 6mt with JB3 2.0 18ohm Map 1, AR downpipes, Custom 3" Exhaust, BMS Intake, Active autowerke IC, Stett charge pipe, Coolingmist meth kit M7 nozzle, 95/5 methanol mix, 93 pump ...
      Published on 07-03-2010 10:12 PM
      Article Preview

      ALSA Automotive Engineering sent BimmerBoost details on their turbo upgrade hardware. Stage I consists of modifying the stock turbo's compressor wheels to allow for up to 1.8 bar of boost.

      Here you can see the pictures of the hardware and the difference between the stock X6 M compressor wheel with the modified wheels. ALSA believes they are the first to have the completed hardware even though Nowack claims to have upgraded turbos. Nowack has not posted any photos of their hardware or any dyno graphs. The same goes for RDsport so it clearly seems ALSA is the first to have upgraded turbos available for the twin turbo BMW V8's.
      ...
      Published on 07-02-2010 11:38 AM
      Article Preview

      BMW revealed the F10 and F12 M-Sport Package today. It consists of exterior, interior, and suspension upgrades.

      The interior gets sport seats featuring Alcantara fabric with the M emblem embedded in the seats. Additionally, an M leather clad steering wheel, gear level, foot rest, and interior trim are added.

      The M-Aerodynamics package has been wind tunnel tested. It also includes a spoiler for the sedan. The wheels pictured at 18-inch alloys but 19-inch M-Sport wheels are also available. ...
      Published on 07-01-2010 10:35 PM
      Article Preview

      The question has arisen several times about what has lower drivetrain losses, the DCT or the manual M3. We have seen information being circulated suggesting the DCT has lower drivetrain losses which is why it performs better which is simply incorrect and a case of pushing personal politics over the correct information.

      The DCT performs better simply due to the shift speed despite weighing about 50 pounds more than the manual. With the way a dual clutch transmission works, it simply takes some additional engine power to operate. This is especially true in the case of wet clutches such as the Getrag unit in the M3 vs. dry as dry clutches do not have the additional loss created by pumping fluid into the housing. Dan Carney writes in this article hosted on dctfacts.com, "A dry clutch setup enjoys a 1% fuel economy benefit compared to a wet clutch DCT because of the elimination of the oil pump and its attendant losses."

      The wet clutch DCT simply takes power to run. It is a physical impossibility for it to have lower drivetrain losses than the manual. The associated systems just simply will take more power to operate. It is impossible for a wet clutch DCT to have the drivetrain efficiency of a manual but the difference is not huge. DCT's often have higher mpg ratings due to having a 7th gear not due to lower losses. They have quicker acceleration figures due to the tighter gearing and shift speed. ...
      Published on 07-01-2010 09:49 AM
      Article Preview

      Alpina has revealed the production F10 B5. The car has a tuned N63 producing 500 hp. The transmission is the 8 speed automatic used in the X5/X6 M.

      No word on if this vehicle will come to the USA but we don't see the point in it. The M5 will be priced around the same point and offer a dual clutch transmission as well as far better handling, power, and looks. If the price could be kept down significantly it would serve as a nice middle ground between the 550 and the M5. It makes more sense to simply tune a 550i for far less money and get better gains per dollar. ...
      by Published on 06-30-2010 08:36 PM



      ALSA Automotive Engineering is claiming to have completed a set of upgraded turbos for the X6 M. They modified the compressor wheels and upped the boost to 26 psi from the standard 17.4 psi. The vehicle also has high flow cats with full exhaust as well as custom tuning.

      ALSA is using 30% drivetrain loss to come up with their 724 hp figure which we feel is wrong. At the most, 25% should be used a tuner should be conservative with drivetrain losses instead of using larger numbers to show inflated crank figures. Additionally, there is no graph posted or any details as to what fuel the run was made on.

      The dyno is stated to read 557 whp but they do not state what type of dyno is being used. After some research, we found out they have a Dynacom 3000 Series 4 Wheel Chassis Dynomete which we are not familiar with. No baseline is established as well which further leads to questioning of the 30% drivetrain loss claim. ...
      by Published on 06-29-2010 10:13 AM

      BimmerBoost is going to increase its focus on older BMW's and E36's in particular. The hardcore BMW tuning scene resides largely with E36 owners and we feel the mistake all but one of the major BMW forums makes is that they do not actively focus on older BMW's and simply dismiss them.

      At BimmerBoost we are about BMW performance not new BMW brand snobbery. Some of the quickest and fastest BMW's today are E36's and this is the most widely modified BMW tuner platform. It is one the best values in BMW performance and we want to provide a viable alternative to the major E36 site by providing a different perspective with better features and just a better overall site for the enthusiast.

      To honor our expanding focus and new E36 forum we have collected some our favorite E36 pictures and videos from over the years into this thread. Enjoy: ...
      by Published on 06-29-2010 08:03 AM
      Article Preview


      BimmerBoost is proud to announce it will be hosting a third party tuner dyno comparison at DC Performance on the weekend of July 31st. We have picked this venue as DC Performance was quick to get back to us and eager to facilitate. The facility is large, able to accommodate all the tuners and spectators as well as having two dynos which will allow tuning to take place even if the dynojet is in use.

      We want to make it clear this event is taking place thanks to the suggestion and encouragement of ESS who asked for a third party dyno comparison with all the competitors in one place at the same time. BimmerBoost was able to make this happen and get practically every major player involved and we want to thank the participants for being so enthusiastic about it. ...
      by Published on 06-28-2010 08:04 PM
      Article Preview

      In case you missed out on the Frozen Grey M3 or did not order the Competition Package BMW has you covered with these carbon fiber accessories.

      The parts include a rear spoiler, mirror covers, and a front spoiler. The parts are all 1x1 weave to match the carbon roof, naturally. They have also been wind tunnel tested. Go ahead and order yours today, it is the cool thing to do. ...
      by Published on 06-28-2010 10:41 AM
      Article Preview

      Here is an independent dyno of the ESS VT-600 SC kit on 93 octane. It fails to crack 500 whp with with a full exhaust.

      1st dyno
      - bone stock
      2nd dyno
      - ESS VT2-600 Supercharger Kit
      3rd dyno
      - ESS VT2-600 Supercharger Kit
      - RPi GT Front Pipe/Cat Delete
      - RPi X-Pipe
      - Vorsteiner Titanium catback and connecting pipes ...
      by Published on 06-28-2010 04:23 AM

      Xcede Performance of South Africa is the first tuner to surpass the 8600 rpm DCT limit.

      Yeah I am a co-owner of Xcede Performance. We have managed to get a DCt to rev 9000rpm. In fact we can get it to rev pretty much anywhere we want. And I can assure you it's not easy. BMw have hard-coded the rev-limiter outside the flash area in the DCT DME. We had to be rather innovative to make it rev there. But the car does peak around 8500-8500. But the good part is that it does not drop off to 8800rpm. It's relatively flat. So there is a definite benefit to revving 8800, evein if it peaks a few hundred rpm before that.


      ...
      by Published on 06-26-2010 07:48 AM
      Article Preview

      Here are never before seen pictures of the BMW Getrag DCT Valve Body and Solenoids. No modifications or changes are being made to these parts, they are being shown simply for their educational value. Additionally, I want to be thorough and show every last part in the transmission to very clearly prove everything was in working order.

      I will leave the explanation of the function these parts serve to SSP:

















































      ...
      by Published on 06-25-2010 04:22 PM
      Article Preview

      BMWSOB currently has the quickest BMW in the USA. Follow his build thread as he takes it to the next level.

      New to this board. Couple pics of my build.






























      ...
      by Published on 06-24-2010 08:16 AM
      Article Preview



      Autozeitung.de is reporting that the upcoming BMW mid-engine sports car based on the Vision Efficient Dynamics concept will have the S85 V10 out of the E60 M5 along with two small electric motors giving it 600 horsepower. It seems that the car is being positioned as a direct rival to the Porsche 918 spyder.

      The car will have ability to drive about 40 miles in full electric mode. It will be set up as an extremely lightweight 2 + 2. It would also be longer and wider than the Vision concept car. Chassis would be aluminum and fitted with carbon fiber bodywork keeping the weight in the 3300 pound range.

      Price will most likely compete with that of the SLS, just under $200k.Did Autozeitung get this right? We don't know, we find the prospect of a naturally aspirated S85 V10 in a new car that is years away tough to swallow especially with tightening emission standards and the switch to forced induction having been already announced. We will see what develops. ...
      by Published on 06-24-2010 05:22 AM
      Article Preview


      The 2010 International Engine of the Years Awards have taken place. BMW took home awards in 4 categories. Many people treat like this like the Oscars of the automotive motor world.

      The 1.6 liter turbo motor in the Mini led things off the for the BMW group. This motor won the award in the 1.4-1.8 liter category for the 4th straight year.

      A new BMW motor appeared on the list with the BMW N47 2.0 liter Diesel taking home the award for best 1.8-2.0 liter motor. It ousted the Audi 2.0 liter FSI motor which won the previous year. VW/Audi had dominated this category since 2005. The S2000 F20C took the crown in this category before that from 2000-2004.

      The BMW N54 once against dominated the 2.5-3.0 liter category. This is the fourth straight win for the N54. The best competition in this categorically ironically comes from BMW themselves with the N55.

      The BMW S65 took the 3.0-4.0 liter engine category for the third straight year. We expect this motor to continue to win this category while the M3 stays in production however there is strong competition from the Porsche flat-6's in this displacement range.

      In the above 4.0 liter category we expect ...