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Subaru WRX and STI meet at the dyno with interesting results

Road and Track recently put the 2015 Subaru WRX and the 2015 WRX STI through a battery of dyno tests to find out not only how much difference there is between their two engines, but what kind of differences there are. The WRX gets the company's new FA20 2.0-liter boxer four-cylinder engine with features like a twin-scroll turbocharger, direct injection and variable valve timing on its two cams. The WRX STI stands pat with the older EJ-Series motor, meaning a 2.5-liter boxer four-cylinder with port fuel injection and carryover turbo lag. Subaru pegs the $26,295 WRX at 268 horsepower, 258 pound-feet of torque and an "extremely conservative" 0-60 mile per hour time of 5.4 seconds. The $34,495 STI clocks in at 305 hp and 290 lb-ft with a 0-60 mph time of 5.1 seconds. Ok, fight.
R&T's dyno runs sussed power numbers at the wheel of 223 hp and 245 lb-ft for the WRX, 247 hp and 243 lb-ft for the STI, then went on to demonstrate in numbers what everyone knew: that the WRX consistently puts out more of its torque earlier than the STI and achieves full boost almost three seconds quicker. On the other hand, on the track, the STI was also shown to have a conservative official 0-60 mph time, stopping the timer at 4.8 seconds compared to the WRX's 5.2 seconds.
The mag says it has comprehensive results coming from its "complete battery of tests," but for now, you can scrutinize their dyno charts and let the battle continue about which one you'd rather put your money down for.

Toyota 86 most likely to get more power through more displacement? [w/poll]

The Sydney Morning Herald has spoken to Tetsuya Tada, chief engineer of the Toyota 86 (our version of it, the Scion FR-S, is pictured above), and they've been promised that more power is on the way. We've heard a lot of speculation about a more powerful Toyobaru since before the standard model was even launched. The only question now is how the power will be delivered, and among the engine concepts we've already heard about - turbo, supercharger, twin-charged, hybrid - is a new one: more displacement.
Tada said that an engine with more displacement than the current coupe's 2.0 liters is being tested alongside a turbocharged and a hybrid-assisted motor. The SMH cites "inside sources" as saying the displacement option is the one likely to get the go-ahead, and suggests increased bore and stroke will see the engine grow to 2.5 liters, horsepower to about 250 - a 50-hp increase over the present car.
While that's apparently the betting man's solution for the long-awaited increase in gumption, what happens with the next generation could be more wide open than we suspected. According to the report, Tada "hinted that [a successor] could be a radically different car, potentially dropping the boxer engine altogether." He said once they've sorted out the concept for the second generation car, then they'll sort out an engine. That's where a turbo option could come to market, perhaps the turbocharged four-cylinder Toyota is developing for the Lexus NX crossover or a hybrid system that uses a capacitor.

Subaru Forester STI e-Boxer concept arriving at Tokyo Auto Salon

Subaru is bringing a Forester STI e-Boxer and Impreza STI concepts to the 2019 Tokyo Auto Salon. Earlier this year, Subaru revealed its 2019 Forester e-Boxer exclusively for the Japanese market. It has a 2.0-liter flat-four, that works in tandem with an electric motor. The total system output is a rather meager 156 horsepower and 187 pound-feet of torque. Subaru says this concept has further refined e-Boxer running gear, which probably means smoother operation, not more power. In fact, this Forester STI looks more like a "tuned by STI" vehicle than a full-on STI. These Japanese tS vehicles (slightly different than U.S. tS vehicles) can be characterized as "STI-lite," which is what this Forester comes off as. As for the rest of the changes, the Forester STI Concept looks pretty rad. The front fascia continues much further down to the ground than before with a blocky look, broken up by the yellow accent as you move even lower. An STI badge sits proudly on the totally blacked-out grille, similar to the Forester Sport but with a different mesh design. Lower and design-heavy side skirts amp the look up a bit more along the sides, while the rear continues the sporty theme with more yellow accents. An exclusive "Fighter Gray" paint color is used on this STI as well. Surprisingly, the exhaust looks exactly the same as a normal Forester. The only actual performance upgrade Subaru is telling us about now comes in the form of big Brembo brakes. Six-piston calipers are covered by 19-inch performance aluminum wheels. We're offered little to no description of the Impreza STI before the show. Just from appearances, it looks like Subaru designed a body kit for a normal Impreza, then changed up the front and rear a bit. The dual-center exhaust is a nice performance touch. Pictures of the interior aren't available now either, but Subaru says it's "Bordeaux" with "high texture." The looks are there, but without any performance information, this doesn't appear to be the STI hatchback we've been wanting for in the U.S. There will also be a Subaru Levorg (Impreza/WRX wagon) and a WRX STI made with custom STI parts. All the Subaru cars will go on the stand at the Tokyo Auto Salon on January 11 next year, so the wait won't be too long to learn more about these vehicles. Related video: