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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 06-29-2022, 10:53 AM   #29
Dake
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Yeah, drag is a huge factor, but also that's literally the reason for the port/direct fuel injection setup in these cars. Good economy below 4k, better power above.

Things like OFT simply adjust the changeover to help offset the torque dip on the gen 1 (and you take the economy hit).

I assume the new car has basically done that from the manufacturer as part of the solution (in addition to more displacement).
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Old 06-29-2022, 12:01 PM   #30
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My long term average is 8.9l/100km or 26.4 mpg.

That include winter driving in snow (took delivery Jan 13) and a fairly even mix of city and highway. IIRC my FRS was at 8.5l/100km.

Track day tomorrow. I should reset the counter for shits and giggles.
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Old 06-29-2022, 01:09 PM   #31
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On a fun sidenote, granny-driving made no significant difference in my economy on E85, so back to normal asshattery. ��
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Old 06-29-2022, 01:52 PM   #32
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On a fun sidenote, granny-driving made no significant difference in my economy on E85, so back to normal asshattery. ��
That's what I've found with my GEN1, driving gently doesn't make a difference, which is good because I ain't got time for that.
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Old 06-29-2022, 02:14 PM   #33
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Recently got 36 mpg at 70mph with cruise control going to Baltimore. This was a 16 BRZ AT with header and tune.
If that was measured based upon the ECU calculation, it is not accurate and not worth a darn. The only way you can get an accurate MPG measurement is to do it manually based upon actual gas used (and even then on a single case basis is unreliable as you don't know if the automatic cutoffs for different gas pumps behave differently).

Heck, when I changed to e85 the ECU told me I was getting 28.5 MPG when it was much closer to 20-21.
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Old 06-29-2022, 02:39 PM   #34
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Yeah, back on the stock tune, my best single tank based on mileage/gallons was 38 mpg during a long road trip and I averaged 36 mpg over the course of the entire drive. In normal day to day I consistently stayed right at 30 mpg only dropping a bit lower during AutoX months.

Then I did the basic OFT tune and it dropped to 28 mpg and the E85 OFT dropped further to about 23-24 mpg.
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Old 06-29-2022, 06:15 PM   #35
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If that was measured based upon the ECU calculation, it is not accurate and not worth a darn. The only way you can get an accurate MPG measurement is to do it manually based upon actual gas used (and even then on a single case basis is unreliable as you don't know if the automatic cutoffs for different gas pumps behave differently).

Heck, when I changed to e85 the ECU told me I was getting 28.5 MPG when it was much closer to 20-21.
Nope. Miles divided by gallons added. Unless the mileage counter is off. I was blown away best I ever did. Usually it’s 33.
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Old 06-30-2022, 06:54 AM   #36
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For reference, my turbo’d gen 1 clocks about 10l/100km (approx 23.5mpg) on average throughout the year including “real” winters ( read many feet of snow :-) ) mostly short distances and hilly provincial roads, with the odd longer highway trip. If I drive slower on highways I can get down to about 7.8l/100km on a given trip. (Approx 30mpg). Adding the turbo actually slightly (I’d say about 10%) improved my consumption relative to stock way back when driving “normally”… Now During HPDEs, I’m more around 36l/100km (6.5mpg)…! So it really depends how you drive it…
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