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Old 08-20-2022, 11:17 PM   #3 (permalink)
EcoModding Lurker
Join Date: Nov 2011
Location: Princeton, NJ
Posts: 24

MLGeo - '95 Geo Prizm
90 day: 33.73 mpg (US)

MLTacoma - '09 Toyota Tacoma
90 day: 21.3 mpg (US)

MLBRZ - '22 Subaru BRZ Premium
90 day: 27.08 mpg (US)
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Originally Posted by serialk11r View Post
Don't worry about BSFC charts, just use the highest gear you can before the next gear down shows better mpg on the display.

If it's out of academic curiosity, the BSFC chart should look nearly identical to the old FA20, which should look like a 2GR-FSE but with slightly poorer low rpm efficiency. When I had a FR-S back in 2015, the mpg really tanked as you went below 2000rpm in 6th gear, which is expected because the cam profiles are high lift high duration.

The new 2.4 is paired with the same gearing AFAIK so I would expect that you want to shift slightly earlier than the 2.0 because there's more displacement.
The upshift indicator on the BRZ wants you to upshift at 1800 rpm, which is ridiculously low. The mileage on this really benefits from being in a high gear quickly. RPMs, even at light throttle, kill the mileage.
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