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Featured 2020 Supra vs 2021 Supra Dyno Results

Discussion in 'B58 6-Cyl Engine, Exhaust, Drivetrain, Bolt-Ons' started by OpenFlash Performance, Jul 8, 2020.

  1. OpenFlash Performance

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    Greetings,
    Here is a graph comparing a 2020 Supra to our 1 day old 2021 Supra. Both 100% stock. Both on the same dyno running California 91oct premium fuel. the difference in power output above 5000rpm is profound where the 2021 car enjoys a 40-50 wheel HP advantage. Full disclosure: This is the only 2021 we have run on our dyno. So I don't like to make assumptions based upon a sample pool of one. It's more than likely that it is representative of all other 2021 cars but until I get more samples, I can only assume this. The 2020 car is in line with the other 2020 cars we have tested on this same dyno. That said, Toyota's hp increase claims of 47hp between the 2020 and 2021 seems right on the money. Although the power rating for both the 2020 and 2021 seem to be conservative (ie, car makes power power than claimed). It's really impressive that they decided to make such a big power bump after the first production year.

    uFKN24.jpg

    Ebu6uH.jpg
     
  2. Dannyvandelft

    Dannyvandelft Well-Known Member

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    Nice. Falls right in line with the C&D video. Their made 388 to the wheels so I'm guessing that was on 93 oct.
     
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  3. OP
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    Yes it was comforting to see a similar delta in both tests. C&D uses a dyno that tends to read a bit high. But the % difference between the 2020 and 2021 is right in line with what we saw. Historically, there have been press cars that have been ahem.. tweaked by the manufacturer to make more power than production cars. Thankfully this doesn't seem to be the case with the Supra.
     
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  4. kona61

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    That's great! But the real question is: are you releasing an Open Flash Tablet?
     
  5. OP
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    We will be making some announcements soon :)
     
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  6. F1 Silver Arrows

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    Wait, but isn't yours a dynojet which reads the highest of all dynos that are normally in use in NA? Wouldn't that mean the Supra is actually making way less horsepower to the wheels than what C&D found out?

    Also with those numbers then is it safe to say that the 2021 Supra is making ~450-460 horsepower at the crank using approximately 15% drivetrain loss because that's what I was thinking after C&D's test. Also they've admitted that there was some more room to go implying that it could have gone higher than 388whp.
     
  7. a90moe

    a90moe Well-Known Member

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    Now we need tuned side to side numbers
     
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  8. OP
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    Car and Driver also used a Dynojet for tested the 2020 and 2021 Supra. But as with all dynos, there is always going to be some variance in calibration. In this case, the Dynojet that C&D used looks to read a bit higher than the Dynojet we used. I think assuming a 15% driveline loss is questionable. No real way to accurately calculate BHP from WHP so I don't bother estimating BHP from chassis dyno results.
     
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  9. shownfu

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    Impressive. Now if Toyota can tempt me with 0% financing on the 2021.
     
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  10. Dannyvandelft

    Dannyvandelft Well-Known Member

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    #10 Jul 9, 2020
    Last edited: Jul 9, 2020
    The number the car makes doesn't matter. What matters is the difference between the 2 when measured back to back. There's way too many variables from different locations, altitude, humidity, and so on. The only constant is the power difference between the '20 and the '21.
     
  11. tadda

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    This is what most would really like to see...Looking at the two curves it appears that the 2021 has less boost taper...

    @OpenFlash Performance were you able to log or have the ability to capture the 2021 boost profile during the dyno run?
     
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  12. Rapheal

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  13. Ale81

    Ale81 Well-Known Member

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    I can't remember where I read it and will keep looking but I read that modern drivetrains have approximately 7-8% loss instead of 15%. I'm no expert, just relying what I read:)
     
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  14. OP
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    I have some logged data from our 2021 that we dyno tested yesterday. Once I get similar data from a 2020, I'll be happy to post up a comparison between the two.
     
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  15. 65sohc

    65sohc Well-Known Member

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    I read the same thing. The ZF trans is supposed to be particularly efficient.
     

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