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    • Shocker! The 2020 Toyota Supra B58 is underrated with Dynojet showing 339 rwhp and 427 lb-ft of torque at the wheels

      Just kidding, this does not shock anybody except Car and Driver. BMW underrating their motors is nothing new and of course Toyota was not about to dial the B58 down lower than any B58 powered BMW models.


      We already knew the B58 was underrated back in 2015. Did Car and Driver never think to maybe get a 340i on the dyno? Did they just figure out what a Dynojet is this month? It sure seems like it:

      Quote Originally Posted by Car and Driver
      In our recent test, the 2020 Toyota Supra hurried from zero to 60 mph in 3.8 seconds and crushed the quarter-mile in 12.3 seconds at 113 mph. The fact that it outperforms more powerful coupes such as the BMW M2 Competition and nudges into the BMW M4's territory got us thinking: Might the Supra's BMW-sourced turbocharged 3.0-liter inline-six be underrated in a similar way to the twin-turbo V-8 in the BMW M5 Competition, which just tried to spin the wheels off the dyno?
      Yes you geniuses, it is underrated.

      Additionally, it doesn't outperform the M2 Competition. The M2 Competition is actually the car you should be putting on the dyno but that won't happen as you stated it has the same performance as the standard M2.

      Now, Car and Driver's hypocrisy and sudden dyno epiphany aside what is questionable is the claimed 427 lb-ft of torque at the wheels. Most B58's on a Dynojet will provide something in the ~370 lb-ft of torque range.

      Did Toyota tune the torque up quite a bit? Why would they do that?

      Well, this is something BimmerBoost can not verify as Car and Driver did not post the graph. We will have to wait and see some independent dyno runs posted in order to confirm.

      Quote Originally Posted by Car and Driver
      After lashing down Toyota’s new sports car, we discovered that, even with the power-sapping driveline losses of its transmission and rear axle, the Supra puts down 339 horsepower and 427 lb-ft of torque at the wheels. That’s slightly better than the 335 horses Toyota said the car would produce at the crank and a considerable jump from the 365 lb-ft the company promised.

      This article was originally published in forum thread: Shocker! The 2020 Toyota Supra B58 is underrated with Dynojet showing 339 rwhp and 427 lb-ft of torque at the wheels started by Sticky View original post
      Comments 8 Comments
      1. crapinternet's Avatar
        crapinternet -
        Don't forget that C&D gets ringers and BMW loves to provide them. Wouldn't surprise me at all if BMW/'Yota put a hot tune on the car for their magazine testing.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by crapinternet Click here to enlarge
        Don't forget that C&D gets ringers and BMW loves to provide them. Wouldn't surprise me at all if BMW/'Yota put a hot tune on the car for their magazine testing.
        Wouldn't surprise me either.

        Wish they posted a graph but we'll get one from somebody soon enough.
      1. maxnix's Avatar
        maxnix -
        If it is not a Mustang Dynamometer run by a competent operator (not sure about these guys at all), I am not a believer.

        Can they not lock it in a particular gear with "Manual" selector?
      1. Sticky2's Avatar
        Sticky2 -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        If it is not a Mustang Dynamometer run by a competent operator (not sure about these guys at all), I am not a believer.

        Can they not lock it in a particular gear with "Manual" selector?
        6th is 1:1 but I’m guessing the limiter kicked in.
      1. tisdrew2's Avatar
        tisdrew2 -
        I wasn't shocked it was underrated but was shocked that both wheel numbers are higher than claimed crank numbers.
      1. alcuin's Avatar
        alcuin -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Wouldn't surprise me either.Wish they posted a graph but we'll get one from somebody soon enough.
        they did it Click here to enlargehttps://www.caranddriver.com/news/a2...no-horsepower/
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by alcuin Click here to enlarge
        Maybe my talking smack to them everywhere I could paid off?

        Anyone else think the peak torque isn't right?

        Click here to enlarge
      1. alcuin's Avatar
        alcuin -
        I just find they tuned this engine for press purposes.

        they forgot to tune it after 5k