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    • AutoBild claims to have the 2014 BMW F82 M4 specifications - Lightweight emphasis, twin turbo S55 3.0 liter inline-6, 7800 rpm, 416 horsepower

      Things are getting interesting. So those reports of the BMW F82 M4 having 444 horsepower that had fanboys complaining? It is looking like it will have even less than that out of the gate with a claimed 416 horsepower. Please do not throw anything at your monitor. BMW is having fun charging twice for horsepower these days with "Performance" software swaps so it is basically a certainty that just like the M5/M6 the M3/M4 will have a Competition Package that should boost output above the 444 horse figure reported earlier with a claimed 35 horse gain from the package.


      Horsepower is one part of the equation and not the be all end all. What is interesting is that the redline is claimed to be 7800 rpm. That is pretty good and the highest redline of any BMW production turbocharged motor. It is not E46 M3 S54 8000 rpm good, or E92 M3 S65 V8 8400 rpm good, or E60 M5 8250 rpm good, but it's good and better than expected if true. Keep in mind spy shots of the tach captured by BimmerBoost members have shown a lower redline.

      The F10 M5 and F12/F13 M6 need their horsepower and torque to move their huge asses, especially the M5 which is a fat pig. An emphasis on lighter weight is exactly what BMW needs. Frankly, it's long overdue but clearly BMW is responding to the warranted criticism. It is difficult to claim to be Efficient and Dynamic when the cars outweigh the competition.

      If what AutoBild reports is true then the M4 will weigh 100 kilograms less than the standard 4-Series. That would mean a curb weight in the ~3300 pound range. It sounds almost too good to be true but with optional ceramic brakes and various lightweight body pieces they may hit that weight. That would make this the lightest M3 (shut up Bimmerboost knows they are calling it an M4) since the E36. Now that is something to be proud of. It also makes the F80 and F82 chassis designations versus the F30 for the 3-Series and the F32 for the 4-Series suddenly make sense if the construction materials differ greatly.

      Other options other than the ceramic brakes and competition package include a valved exhaust system and 20 inch wheels. Oh, and a 6-speed manual option of course. The 7-speed DCT will not be forced on you (as it should not be in a drivers car).

      This is much, much better than anticipated if accurate. It seems BMW is finally responding to the criticism of fat cars that no longer offer the best driving experience in their class. It is a certainty that the new W205 C63 AMG will outpower this car with its 4.0 liter twin turbo V8 but if the new M3 is significantly lighter it will not need as much power to compensate while at the same time running circles around the C63 AMG on the roadcourse.

      Limp mode issues will still be a concern with the turbo motor on the track and we will have to just wait and see how it holds up in a racetrack environment.

      BMW and M are certainly not back as that once special M shine and swagger will forever be diminished but this is at the very least (once again, providing it is accurate) a step back in the right direction after quite a long string of BMW and M disappointments. Let's all keep our fingers crossed.
      This article was originally published in forum thread: AutoBild - BMW M4 specs started by BlackJetE90OC View original post
      Comments 103 Comments
      1. whoosh's Avatar
        whoosh -
        Click here to enlarge Originally Posted by M3_WC Click here to enlarge
        The 100kg (220lbs) reduced weight from 435i stated in all articles includes carbon seats.

        So, lets take out the seat figure from the weight savings rumor.
        Thanks... I wasn't thinking of the seats in the savings figures.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        I had a friend state that he had some inside info that this motor will pretty much be untouchable flash wise. First off they enlisted the guys from Bosch's military encryption division to lock away the DME. So your average Leopard main battle tank's electronics are encrypted in the same fashion Click here to enlarge

        He was also saying that some rumors have been floating around that the DME will be in constant contact with NA via SOS system...the second a boost target is altered, it sends a signal and pretty much kiss your warranty goodbye...hope its not true.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Side impact regulations.
        Which shows how retarded the US laws are, because a study was done in testing and turns out the Performance seats were actually safer in a crash lol
      1. BlackJetE90OC's Avatar
        BlackJetE90OC -
        Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
        I had a friend state that he had some inside info that this motor will pretty much be untouchable flash wise. First off they enlisted the guys from Bosch's military encryption division to lock away the DME. So your average Leopard main battle tank's electronics are encrypted in the same fashion
        Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
        Click here to enlarge

        He was also saying that some rumors have been floating around that the DME will be in constant contact with NA via SOS system...the second a boost target is altered, it sends a signal and pretty much kiss your warranty goodbye...hope its not true.

        I will laugh my ass off if that is true.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by BlackJetE90OC Click here to enlarge
        I will laugh my ass off if that is true.
        Given the issues with BMWs warranty index on all the turbos, fuel pumps and injectors it seems they are looking to protect themselves from another huge loss.

        Its sad. Porsche or Benz is not attempting to stop their enthusiasts from wringing massive amounts of hp from their models....
      1. Tony@VargasTurboTech's Avatar
        Tony@VargasTurboTech -
        Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
        I had a friend state that he had some inside info that this motor will pretty much be untouchable flash wise. First off they enlisted the guys from Bosch's military encryption division to lock away the DME. So your average Leopard main battle tank's electronics are encrypted in the same fashion Click here to enlarge

        He was also saying that some rumors have been floating around that the DME will be in constant contact with NA via SOS system...the second a boost target is altered, it sends a signal and pretty much kiss your warranty goodbye...hope its not true.
        Governments, car companies, software makers, video game developers, the list goes on have been making "uncrackable" codes to protect their products for decades, guess what, they all get cracked, just takes time and a few smart people.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        Governments, car companies, software makers, video game developers, the list goes on have been making "uncrackable" codes to protect their products for decades, guess what, they all get cracked, just takes time and a few smart people.
        Is the mds81 dme fully cracked yet? AFAIK, they just recently cracked the S54 DME to allow tuning right on the factory tables...
      1. lulz_m3's Avatar
        lulz_m3 -
        Just means piggybacks will continue to rule the aftermarket
      1. lulz_m3's Avatar
        lulz_m3 -
        Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
        Is the mds81 dme fully cracked yet? AFAIK, they just recently cracked the S54 DME to allow tuning right on the factory tables...
        The bimmerboost open flash can write the msd80/81
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        The bimmerboost open flash can write the msd80/81
        I wasnt part of the whole design/discussion, i was under the assumptiom it was read only
      1. Tony@VargasTurboTech's Avatar
        Tony@VargasTurboTech -
        Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
        Is the mds81 dme fully cracked yet? AFAIK, they just recently cracked the S54 DME to allow tuning right on the factory tables...
        Key word is always yet. Piggys for the N54 are prob about done at this point, but for these newer cars, piggys will most likely keep the enthusiasts happy with extra power.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
        Which shows how retarded the US laws are, because a study was done in testing and turns out the Performance seats were actually safer in a crash lol
        Nobody ever said any of the laws were based on logic.
      1. bobS's Avatar
        bobS -
        There is no way the dme will be that secure. I'm convinced BMW doesn't care about the tunes/enthusiasts. We are a very small percentage of owners. They won't spend all that time/money to lockout 2% of buyers. The warranty issues with the n54/n55 were mostly on stock tuned cars.
      1. Sticky's Avatar
        Sticky -
        Have you seen how secure the F30 N55 dme is?
      1. bobS's Avatar
        bobS -
        Yea, that is to stop competitors like merc and Audi,not tuners
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by bobS Click here to enlarge
        Yea, that is to stop competitors like merc and Audi,not tuners
        Um, no.
      1. bobS's Avatar
        bobS -
        Lol, ok.... So they spend all the engineering money and time to lock out the tuners, that make up, what?...... 1% of total sales? Seems reasonable.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by bobS Click here to enlarge
        Lol, ok.... So they spend all the engineering money and time to lock out the tuners, that make up, what?...... 1% of total sales? Seems reasonable.
        Yes, they are locking out the tuners as what % of customers will opt for BMW's own performance software? Additionally, Audi and Merc know the same engineers and have the same ECU sources. You think that is really the issue?
      1. BlackJetE90OC's Avatar
        BlackJetE90OC -
        Wasn't the Lexus IS-F ecu impossible to crack? Has anyone even cracked it yet?
      1. BlackJetE90OC's Avatar
        BlackJetE90OC -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, they are locking out the tuners as what % of customers will opt for BMW's own performance software? Additionally, Audi and Merc know the same engineers and have the same ECU sources. You think that is really the issue?
        Yes, in case anyone hasn't noticed BMW is going full force with the M-performance parts lineup. They are spending a lot money marketing it and will protect it as much as they can.