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    • ECU tuned Porsche 991.1 GT3 vs. BMW F13 M6 Competition Package on the strip

      This is one of those perfect examples where magazines and the real world do not align. A Porsche 911 GT3 is very quick and this 991.1 3.8 liter example has an ECU tune pushing the naturally aspirated flat-6 likely into the 500 crank horsepower range.


      Combine that output with light weight and a PDK transmission and you have a very quick car.

      The F13 M6 on the other hand is fat and to move its big fat ass needs ton a ton of torque. It has that in spades thanks to its Competition Package tuned S63TU twin turbo 4.4 liter V8.

      This race is an exercise in power to weight:


      The M6 is a little quicker with a better 60 foot while the GT3 is slightly faster although the trap can be inflated slightly due to a poor 60 foot.

      If the GT3 had some drag rubber though and a good launch it would likely easily beat the M6 but then again the M6 would benefit from drag rubber as well.

      Regardless, a good real world example of the two cars lined up on street tires. Now imagine if the M6 dropped 500 pounds...


      This article was originally published in forum thread: ECU tuned Porsche 991.1 GT3 vs. BMW F13 M6 Competition Package on the strip started by Sticky View original post
      Comments 6 Comments
      1. quicktime's Avatar
        quicktime -
        According to the video the GT3 had a higher trap and the M6 had a lower ET.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by quicktime Click here to enlarge
        According to the video the GT3 had a higher trap and the M6 had a lower ET.
        I flipped it, thanks.
      1. M5Dan's Avatar
        M5Dan -
        Looks like the M6 jumped a little too early and got the red light. So the Porsche technically won. Now the Porsche is tuned and the M6 is stock, lets see that M6 with a tune on a rematch Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by M5Dan Click here to enlarge
        Looks like the M6 jumped a little too early and got the red light. So the Porsche technically won. Now the Porsche is tuned and the M6 is stock, lets see that M6 with a tune on a rematch Click here to enlarge
        The M6 will kill it. Nothing much the GT3 can do to add power.
      1. F16HTON's Avatar
        F16HTON -
        2.16 60ft is not normal for a GT3, typically in the 1.7ish range
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by F16HTON Click here to enlarge
        2.16 60ft is not normal for a GT3, typically in the 1.7ish range
        Yep, horrible 60 foot.