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      Published on 07-10-2010 11:05 PM

      This video shows the BMW Rahal Letterman M3 driven by Tommy Milner in a qualifying lap at the at the Miller Motorsport Park. The two M3's qualified 5th and 6th for the race tomorrow at 4:30 PM Eastern Time. The top 9 GT class cars were all within 1 second of each other in qualifying.

      Dirk Mueller describes his qualifying effort: ...
      Published on 07-09-2010 10:24 AM
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      The BMW M3 has officially turned 25 years old. 4 Generations of cars. Motors ranging from 4 cylinders to 8 cylinders. Coupes, sedans, and convertibles. Manuals, automatics, sequentials, and dual clutch transmissions. An untold number of smiles from the drivers behind the wheel.

      The BMW M3 is a special automobile. It is the car many of us most readily associate with M. It isn't the most powerful M car, the most expensive, or the most flashy. It is the most fun, the best drivers car, the choice of the M enthusiast. It is a vehicle that elicits superlatives across the automotive world and the target many others shoot for but one they haven't been able to hit. The M3 is quite simply one of the greatest all around cars in the world and it has been since its introduction, 25 years ago. ...
      Published on 07-09-2010 03:15 AM

      BMW released the teaser video above on the 1 series M coupe today. The video features Dr. Kay Segler discussing how the car will put a smile on your face and we have no doubt it will do just that which is what the vast majority of BMW's do.

      Car and Driver also released their first drive impressions which told us a few things, most importantly that a tweaked N54 would be used putting power at 335 hp which is no doubt underrated. BimmerBoost predicted an N54 in this article here.

      The car will obviously have suspension tweaks, a unique exhaust, a limited slip differential, better brakes, as well as unique body work and wheels. However, we can't help but feel a bit let down. First of all, M cars always have had a unique/special powerplant that goes with the chassis. An N54 just running a few more pounds of boost is a bit boring. No cylinder head changes? No valvetrain changes? No turbo changes? No special motor? Many of the N54 enthusiasts are already running more power. ...
      Published on 07-07-2010 06:43 PM
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      I just happened to be browsing coil-over options when I noticed yet another user mentioning issues with his KW coil-overs:

      Minutes later, the thread was deleted and the user was banned for posting his experience:

      Now, there are several issues with the KW V1's and KW coil-over's in general, reports of the squeaking/rattle and issues with the perches:

      It is the responsibility of any forum to allow users to post their experience to inform other users before making a purchase. Bimmerpost is protecting vendors who have an inventory of these coil-overs at the expense of the users, literally. It is shady, dirty, deliberate, and just plain wrong. If any vendor asks for a board to delete messages about a defective product to move inventory, they should be exposed for it, not protected. ...
      Published on 07-07-2010 04:45 AM
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      After 5 years, the production of the E60 M5 has come to an end. Production was a record high for M5's, with exactly 20,548 units having been produced. 19,523 were the sedan with the rest of the production belonging to the wagon. The E39 M5 was produced for 6 years, 1 year longer, but had smaller production numbers overall.

      The United States was the largest market for the vehicle, accounting for 8,800 sales alone. Germany only accounted for 1,647 units. Great Britain and Ireland combined for 1,776 units sold. Japan was the fourth largest market. Interestingly enough, the United States was larger than the next 3 largest markets combined. It was also the only region to receive a 6 speed manual option. ...
      Published on 07-05-2010 06:10 PM
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      We have seen many users and HPF fans alike on various BMW forums touting the 139 mph trap speed achieved by Evil Twin Robs HPF Stage 2 M3 at the Spokane Motorsports Drag Strip.

      Often when there would be a conflict or questions as to how fast an HPF car is these 137-139 mph trap speeds would be used to prop up HPF cars when keyboard racing. Recently, Evil Twin Rob ran at this same track after the suspect timing equipment had been replaced and his traps were over 10 mph less than what was achieved before. This large of a variance shows the previous suspect times were inflated and not accurate. The track was not NHRA approved when the runs were made. ...
      Published on 07-04-2010 01:53 PM
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      This is pretty impressive. Car belongs to j x k.


      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
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      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
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      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
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      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, "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
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      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
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      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
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      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. ...