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    • Bone stock Mercedes-Benz C207 E550 Twin Turbo M278 Coupe runs a 12.4@115 1/4 mile at the MIR drag strip

      Very impressive results here from a completely stock E550 coupe. The M278 4.6 liter twin turbo V8 is looking more and more impressive powering this particular vehicle belonging to BenzBoost member nawlinstornado to a 12.428@115.13. That elapased time was achieved with the factory runflat Continental tires and no limited slip differential. The 1.961 60 foot can be improved tremendously with some real drag rubber meaning low 12's are realistically in this cars future stock.


      Now, this was done at MIR (Maryland International Raceway) which is a fast track especially when the density altitude drops. It was -621 feet at the time of this run which is definitely a contributing factor to the great results. Regardless, these cars dyno in the 390 wheel horsepower range stock making them very potent and underrated. Now just imagine if Mercedes and AMG make an E63 AMG coupe with the M157 V8.

      Congratulations to @nawlinstornado for the awesome results, timeslip below.


      This article was originally published in forum thread: E550 Coupe/stock M278: quarter mile time best 12.428/115.13 started by Dueclaws View original post
      Comments 35 Comments
      1. Dueclaws's Avatar
        Dueclaws -
        I should mention that Quaife has finally introduced a limited slip for the M278 E550 coupe/convertible.
      1. PetroC63's Avatar
        PetroC63 -
        That is an awesome time on street rubber. A tune with drag radials and this is an 11 second sleeper. Man, Mercedes is putting out some potent $#@!.

        The E550 comes with the 4.7 bi-turbo I believe?
      1. m54b25's Avatar
        m54b25 -
        Nice runs on your E550 CGI Coupe! Did you do try the run with roof on and off? Click here to enlarge
      1. Dueclaws's Avatar
        Dueclaws -
        It's not my vehicle, although I own one. It belongs to a friend.
        Are you asking about opening the roof? Does that make it faster?
        Click here to enlarge
      1. m54b25's Avatar
        m54b25 -
        Click here to enlarge Originally Posted by Dueclaws Click here to enlarge
        It's not my vehicle, although I own one. It belongs to a friend.
        Are you asking about opening the roof? Does that make it faster?
        Click here to enlarge
        Did he try with roof closed and open to see the difference?
      1. Dueclaws's Avatar
        Dueclaws -
        He didn't mention the roof; thus, I doubt it. I believe he might post later and answer the question.
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by m54b25 Click here to enlarge
        Did he try with roof closed and open to see the difference?
        That was my car, and the roof was closed for all runs.
      1. m54b25's Avatar
        m54b25 -
        Click here to enlarge Originally Posted by nawlinstornado Click here to enlarge
        That was my car, and the roof was closed for all runs.
        Nice runs for a E550 CGI Convertible. Do you plan on getting it into the 11's?
      1. nawlinstornado's Avatar
        nawlinstornado -
        Yep, it has the 4.6L bi-turbo M278 (as described by MB, but really 4.663L).

        I have driveline concerns with going to drag radials, so that is unlikely to get tested on my car. I'll probably do one more test & tune in stock config. Then I'm putting in the Quaife LSD (available late summer), RennTech Digital Suspension Lowering Module, and air filter upgrade - probably BMC. Once I get a few runs with that setup, it will be time for the RennTech tune.
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by m54b25 Click here to enlarge
        Nice runs for a E550 CGI Convertible. Do you plan on getting it into the 11's?
        It's actually a Coupe, which I believe is both stiffer and lighter than the convertible. As for the 11's, that depends on how much compromise in comfort I have to make.
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by nawlinstornado Click here to enlarge
        I have driveline concerns with going to drag radials, so that is unlikely to get tested on my car.
        I met with Kleemann USA yesterday since I was in the area. After discussing my driveline concerns, I'm now considering buying a set of rear wheels and drag radials. Any suggestions?
      1. Dueclaws's Avatar
        Dueclaws -
        I don't have any advice regarding drag tires or wheels, but would like to see your results.
        When do you plan to get the Quaife? (I might need to delay purchase.)
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by Dueclaws Click here to enlarge
        I don't have any advice regarding drag tires or wheels, but would like to see your results.
        When do you plan to get the Quaife? (I might need to delay purchase.)
        I'll get the Quaife as soon as it's available. Looks like July. I'm still debating if I'm going to do the swap myself, but also asking around for shops with a lot of experience. If Bird's comes back with a solution requiring no shimming/shaving, then I'll definitely do it myself. If not, then I'm going to be wrestling with the decision. I really like doing it on my own...

        I brought up the drag radials because I see so many people running them and their 60' times really improve a lot. But the more I think about it, the less interested I become. I love knowing that what my car puts down at the track is also what it puts down on the street. I ignore the fact that the starting pad at the drag strip is prepped.
      1. Sticky's Avatar
        Sticky -
        That slip is too small. Who has the large one?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nawlinstornado Click here to enlarge
        That was my car, and the roof was closed for all runs.
        Convertible running these times? Impressive.
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Convertible running these times? Impressive.
        Coupe, not convertible. It has the big pano-roof, but I kept it closed.
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        That slip is too small. Who has the large one?
        http://www.dragtimes.com/Mercedes-Be...lip-25275.html
      1. Sticky's Avatar
        Sticky -
        Very impressive results here from a completely stock E550 coupe. The M278 4.6 liter twin turbo V8 is looking more and more impressive powering this particular vehicle belonging to BenzBoost member nawlinstornado to a 12.428@115.13. That elapased time was achieved with the factory runflat Continental tires and no limited slip differential. The 1.961 60 foot can be improved tremendously with some real drag rubber meaning low 12's are realistically in this cars future stock.

        Now, this was done at MIR (Maryland International Raceway) which is a fast track especially when the density altitude drops. It was -621 feet at the time of this run which is definitely a contributing factor to the great results. Regardless, these cars dyno in the 390 wheel horsepower range stock making them very potent and underrated. Now just imagine if Mercedes and AMG make an E63 AMG coupe with the M157 V8.

        Congratulations to @nawlinstornado for the awesome results, timeslip below.

        Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nawlinstornado Click here to enlarge
        I have driveline concerns with going to drag radials
        I see no reason to have them with a rear wheel drive car and no LSD at this power level.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nawlinstornado Click here to enlarge
        I brought up the drag radials because I see so many people running them and their 60' times really improve a lot. But the more I think about it, the less interested I become. I love knowing that what my car puts down at the track is also what it puts down on the street. I ignore the fact that the starting pad at the drag strip is prepped.
        11's stock would open some eyes.