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GR86 General Topics (2nd Gen 2022+ Toyota 86) General topics for the GR86 second-gen 86

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Old 09-02-2021, 04:32 PM   #15
Dzmitry
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Quote:
Originally Posted by OkieSnuffBox View Post
That's because in the real world it's not really practical to smack the rev limiter and then shift. That will cost more time then just going to 3rd.
True, but as the calculation states and even the photo from the OP shows, you don't need to redline at 7500 to hit 60. It's at like 7200-7300 in the photo. You would think from a couple redline tests to feel out the car, Jason would have easily noticed it gets past 60. Either way, I agree with what you're saying.
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Old 09-02-2021, 05:04 PM   #16
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It does 59 and change in 2nd according to GPS. True 0-60 requires a shift to third. At least in a BRZ premium...
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Old 09-02-2021, 05:25 PM   #17
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A lot of the European and Asian reviews are all in Kph.

100 Kph = 62.1371 Mph

So there's that too.
Straight line bench racing applied to a vehicle tuned for corner performance.

Obviously Needs More Power!
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Old 09-02-2021, 05:37 PM   #18
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Quote:
Originally Posted by FlyingJett View Post
It hits 100km/h in the second gear
Im going to have to check....

i could have sworn it was mentioned it hits 56 in second and you need to shift into third to get to 60
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Old 09-02-2021, 05:49 PM   #19
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Quote:
Originally Posted by Dzmitry View Post
True, but as the calculation states and even the photo from the OP shows, you don't need to redline at 7500 to hit 60. It's at like 7200-7300 in the photo. You would think from a couple redline tests to feel out the car, Jason would have easily noticed it gets past 60. Either way, I agree with what you're saying.
In reality, we are all splitting hairs because there is nothing else to talk about since the car still won't be here for months.
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Old 09-02-2021, 05:59 PM   #20
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Quote:
Originally Posted by trippinbillies40 View Post
It does 59 and change in 2nd according to GPS. True 0-60 requires a shift to third. At least in a BRZ premium...
But why?..
Is it because the rev limiter is lower? Gear ratios are different?

Or the real tire height is smaller by just enough?
Have you checked the pressures or rear tires?
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Old 09-02-2021, 06:02 PM   #21
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But why?..
Is it because the rev limiter is lower? Gear ratios are different?

Or the real tire height is smaller by just enough?
Have you checked the pressures or rear tires?
Funny you should ask about tire pressures. Definitely were not checked and were sky high after being delivered, so yes I'm assuming it's tire height variation.
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Old 09-02-2021, 06:09 PM   #22
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"most speedometers are designed to read slightly high. European regulations in particular allow most cars to display 10 percent plus 6 kilometers per hour (3.7 mph) above actual speed, but those same regulations do not allow for the reporting of a speed lower than the car is actually traveling."

https://www.roadandtrack.com/car-cul...ters-accurate/

Cammisa was probably using GPS because speedometers are designed to tell you that you are going a little faster than you actually are.

Edit: just realized that the article I linked was written by Cammisa. lol
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Last edited by Pete; 09-02-2021 at 06:59 PM.
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Old 09-02-2021, 06:35 PM   #23
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You all will remember that the change to a 4.3 ratio in 2017 came with mentions that you now needed to shift 3rd to hit 60.

Since the new car goes back to 4.1 (sadly) and the engine has the same redline and the transmission has the same ratios, it was safe to assume it would go back to being able to hit 60 in 2nd.
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Old 09-02-2021, 06:38 PM   #24
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I think we have two different conversations going here. It was made very clear in almost all reviews, and even some tests by folks here, back in 2012 that the Twins had to go to third gear to get to 60MPH on a MT. The AT easily gets to 60MPH in second gear, but because it has no launch control, it does it significantly slower than the MT. I'm talking stock here of course.

As far as the 2022 Twins, I think we'll have to wait and see the reviews, but it does appear that it does get there in 2nd gear on the MT. Whether or not there is enough buffer to overcome Speedometer "lies" is another question.
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Old 09-02-2021, 06:52 PM   #25
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Quote:
Originally Posted by Sasquachulator View Post
Im going to have to check....

i could have sworn it was mentioned it hits 56 in second and you need to shift into third to get to 60
In 1 gen AUTOMATIC.

It has longer gears than manual.
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Old 09-02-2021, 08:00 PM   #26
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Originally Posted by trippinbillies40 View Post
Funny you should ask about tire pressures. Definitely were not checked and were sky high after being delivered, so yes I'm assuming it's tire height variation.
Hmm but higher tire pressures would cause higher GPS speeds, not lower...
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Old 09-02-2021, 08:37 PM   #27
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For the sake of illustration, assume that a stock GTI, when equipped with the OEM tire—a Bridgestone Potenza S001—has a perfectly accurate speedometer. Replacing its tires with, say, a Kumho Solus TA71 in the same 225/40-18 size would result in a road speed of 75.6 mph when the GTI’s speedo says 70.

In other words, a potentially big ticket. That nearly eight-percent difference in rolling circumference is calculated from the two tire manufacturers’ published specifications for revolutions per mile. And that brings us back to the fun part: The significant variation between two tires of the same size highlights just how silly it is to calculate speed via wheel rpm.

imma head out
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Old 09-02-2021, 08:41 PM   #28
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That's a really good point. It goes along with the (sometimes significant) variations in measured tread and section widths between tires of the same nominal size. Tread depth differences will also impact overall tire diameter.
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