New Toyota GR86’s 2.4L boxer engine is more powerful than advertised

Still embittered that the new Toyota GR86 and Subaru BRZ aren’t offered with the “boost and whoosh” of turbocharged motivation? We’re with you, but as it stands, the Subie/Toyota collaboration turns into a 2.4-litre heart that naturally sucks air, although the actual power seems to be more than Toyota suggests.

The initial pull produced 211 net hp at the wheels with 169 lb-ft. of torque. A handful of additional pulls were done without any adjustments and that number gradually increased to 215 hp and 170 lb-ft of torque – the extra grunt is likely due to the engine having so few miles, and a result which encourages the motor would break under load. The group previously dyno tested a stock 2022 BRZ that produced similar wheel horsepower and a bit more torque at 176 lb-ft of torque.

Not a huge number, especially by today’s standards, but take a step back and realize that Toyota lists the GR86 at 228 hp and 184 lb-ft of torque. With the inherent transmission loss that comes from powering the wheels rather than measuring engine power at the flywheel (as manufacturers do), this number is a bit higher than expected. Mathletes can do this on their Casio calculator watch and find that the flywheel horsepower is around 240-250 hp.

It’s not entirely uncommon for a car manufacturer to fight a bit with horsepower numbers. In fact, we recently reported on the new Civic Si which also surpassed its claimed power output. The GR86 and Si have taken some heat from enthusiast circles on social media due to their power figures and one has to wonder why either brand would hold back from an audience power hungry.

The aftermarket is expected to produce a host of performance and aesthetic upgrades for the GR86/BRZ and, if history is any guide, turbo and supercharged versions will no doubt become commonplace. Prospective owners now know there’s a little extra spice on top of those factory-noted numbers.

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