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    • ESS Tuning VT2-650 supercharged E92 M3 takes on a stock Porsche 997 GT2

      Here is another great video from our Russian friends at dragtimes.info. A stock 997 GT2 dyno's in the low 500 wheel horsepower range. The supercharger on the E92 M3 here is an ESS VT2-650 which is the highest horsepower stock internal offering from ESS pushing 8.5 psi of boost. Dyno numbers for the VT2-650 have been claimed to be in the 600 wheel range so we are surprised to see the trap speed at the mile favoring the GT2 with 179.67 mph versus 169.46 for the M3. Both clearly are very fast cars but 10 MPH is quite a difference especially considering it is in the favor of what is supposedly the much less powerful car. Interesting result to say the least.







      ESS VT2-650 dyno graph:


      This article was originally published in forum thread: Porsche 911 GT2 vs E92 M3 ESS started by ERM324 View original post
      Comments 32 Comments
      1. G0TB00ST?'s Avatar
        G0TB00ST? -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't think it is messing with the gas pedal as much as the M3's constant acceleration due to the shift speed magnifying the time it takes the GT2 to shift manually.

        If there were mis-shifts I don't think he would have pulled past or trapped as well.

        Would like to see more runs as well. I don't know if I really believe that GT2 is stock.
        +1 on that, I didn't want to sound stupid so I didn't say anything earlier. Even though the gt2 is lighter It couldn't pull the way it did on a a car that has almost 100 hp more. It must have something done to it.
      1. G0TB00ST?'s Avatar
        G0TB00ST? -
        Click here to enlarge Originally Posted by z3speed4me Click here to enlarge
        M3 is hurting on tq, that's really why the GT2 was able to come back.


        And fyi; for video above me that white p car is not a turbo, center exhaust my friend.....
        At top end though wouldn't it be hp that wins not tq? I though tq was more about low end.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sledgehammer Click here to enlarge
        You hear the GT2 chirp it's tires early on on the 1st to 2nd shift... I argue he missed a shift to drop back that far or he is toying with that M3. He starts to pull with great ease on the top meaning he flexed his right foot and stopped screwing up or screwing around. You don't pull on someone that easily by accident. Thats a display of superior power IMO. Now maybe the M3 makes 650 crank hp or maybe it wasn't running perfectly or maybe the GT2 was modded and so on. Lots of maybe's but the GT2 walks at the end and thats way clear. I would like more runs of the two. As Matt said its hard to duplicate fumbled runs back to back
        A stock GT2 doesn't have the power to just pull a supercharged DCT M3 whenever it wants to. He chirped his tires as a GT2 will do that who is going flat out on the 1-2.

        I don't buy the GT2 sandbagging and still trapping 10 MPH higher when the M3 obviously is accelerating al out.

        The GT2 likely was modded but regardless it wins decisively.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by z3speed4me Click here to enlarge
        M3 is hurting on tq, that's really why the GT2 was able to come back.


        And fyi; for video above me that white p car is not a turbo, center exhaust my friend.....
        Has nothing to do with torque especially once the cars are moving and it is all about HP.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by G0TB00ST? Click here to enlarge
        At top end though wouldn't it be hp that wins not tq? I though tq was more about low end.
        Correct.
      1. ERM324's Avatar
        ERM324 -
        Blown DCT M3's are VERY strong at speeds over 100mph where other cars usually hit a wall, that p-car had to be modded or something was up. I'd expect the porsche to pull out at low speeds due to tq advantage and traction and the M3 reeling it in and passing at triple digit speeds.
      1. ERM324's Avatar
        ERM324 -
        The M3 in the JawsMotosport video tromped that 911 turbo, would have been ridiculous if it was DCT
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ERM324 Click here to enlarge
        Blown DCT M3's are VERY strong at speeds over 100mph where other cars usually hit a wall, that p-car had to be modded or something was up. I'd expect the porsche to pull out at low speeds due to tq advantage and traction and the M3 reeling it in and passing at triple digit speeds.
        On paper this is exactly what should happen.
      1. JAWS Motorsport's Avatar
        JAWS Motorsport -
        Click here to enlarge Originally Posted by z3speed4me Click here to enlarge

        And fyi; for video above me that white p car is not a turbo, center exhaust my friend.....
        Its a 996TT with GT2 turbos and more with tune...FYIClick here to enlarge
      1. nappy_time's Avatar
        nappy_time -
        I know that there are many more technical variables to consider but the most tangible is bhp/kg.A e92 m3 weighs 1655 kilo / 3648.7 lbs, and the gt2 weighs 1440 kilo / 3174.7 lbs. Assumming the m3 has 650 hp, the ratio would be 0,39 bhp/kg and the gt2 stock has a ratio of 0,37 bhp/kg. I think the gt2 has an aerodynamic advantage over the m3 (based only on looks)My superficial conclusion Is that the gt2 has the advantage especially on a full mile when high speed comes into play.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nappy_time Click here to enlarge
        I know that there are many more technical variables to consider but the most tangible is bhp/kg.A e92 m3 weighs 1655 kilo / 3648.7 lbs, and the gt2 weighs 1440 kilo / 3174.7 lbs. Assumming the m3 has 650 hp, the ratio would be 0,39 bhp/kg and the gt2 stock has a ratio of 0,37 bhp/kg. I think the gt2 has an aerodynamic advantage over the m3 (based only on looks)My superficial conclusion Is that the gt2 has the advantage especially on a full mile when high speed comes into play.
        Power to weight is an acceleration factor obviously but in a mile long race it won't overcome that large of an HP deficit. I don't know what's up exactly but respect for the GT2.

        GT2 drag coefficient is .32 vs. .31 for the M3.
      1. Sorena's Avatar
        Sorena -
        Something is not right. GT2 can't pull that easily on high speeds where a boosted M3 shines. Either that GT2 is modded or the M3 doesn't have the VT-650 kit. Those Russians seem have to problems with ESS kits, they think the number is whp not bhp BTW. It's not the first time they are claiming false horse power numbers for ESS cars.