2019 Subaru Wrx Sti on 2040-cars

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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.

2015 Subaru Forester tS Quick Spin

When Subaru invited me to Japan and the famed Suzuka racing circuit to drive its BRZ tS, there was more on the menu than sporting coupes. The STI buffet also included the Subaru Forester tS. If you caught my BRZ tS review, the Forester follows the same idea: modified for better, more precise handling but without any increase in power. As I shared in the first tS review, and with Subaru's news at the New York Auto Show, the company plans to increase the awareness of Subaru Tecnica International – STI – over the next five years. In the case of the BRZ tS, a similarly-conceived car is coming to the US in the next few years. Such is not the story with the Forester tS. The JDM-only product was on hand to drive as further proof of what STI can do, but not as a preview to an upcoming model for sale in America. Subaru execs wouldn't go so far as to rule the idea out completely, but there was plenty of wink-nudging admitting the limited market for something like the Forester tS over here. Firmly ensconced in the "forbidden fruit" category, then, I still thought it'd be fun to report on the hot-ish, wagon-ish Forester. This one's for the other car nerds like me. Driving Notes So, what's new on this tS? Basically STI made the Forester stickier and less prone to roll under high cornering load. The same type of flexible tower brace previously found under the hood of the WRX is used here, and "flexible draw stiffeners" connect the body to the front and rear subframes for added body stiffness. The braces incorporate a very strong coil spring, and add lateral stiffness with enough give to allow the tires to stay in perfect contact with the road surface. The tires in question are 245-section Bridgestones, riding on attractive 19-inch STI wheels, both increases from the 225-section tires and 18-inch wheels that come standard in the US on the Forester 2.0XT model. The tS also has a more-powerful Brembo braking package; handy when hauling a 3,600-pound vehicle down from straightaway speeds. Subaru benchmarked the tS versus other 'sporty' SUVs and CUVs, including out and out performance variants. (Japanese professional modesty prevented Subaru reps from naming specific names, but suffice it to say that the Germans were involved.) In terms of roll rates, yaw response, slalom time, g-force and more, the Subaru's tS package shows massive improvements versus the standard Forester, and holds up to the competitive targets too.

Cosworth teases upgrades for Subaru BRZ

Subaru may or may not produce an STI version of the BRZ. Things seem to go back and forth on the subject. But Subaru Tecnica International isn't the only company with a history of tuning Subies. So does Cosworth, and now the British racing firm appears to be turning its attention to the BRZ and its Toyota- and Scion-badged siblings.
For those unacquainted, Cosworth is more than your average tuning company. It's a racing firm first and foremost, having made F1 engines under its own name as well as Ford's (chief among them the all-conquering DFV 3.0-liter V8 of 1960s and 70s fame), not to mention engines for Indy, rally and even high-performance, road-going versions of the Ford Sierra, Chevy Vega and Mercedes 190E. The list goes on and on, but you get the point.
Now withdrawing from Formula One, Cosworth is focusing its attention on tuning road cars again with the launch of the Cosworth Power Package line, the first of which will focus on the Toyota GT86 (aka Scion FR-S) and Subaru BRZ. We don't know just yet what will be included in the packaged dubbed FA-20, but from the video teaser below, it seems there'll be upgrades to the exhaust, suspension, aero and - if we're lucky - maybe a super- or turbocharger for the 2.0-liter flat-four engine. We'll have to wait and see, but we get the feeling that with Cosworth on the job, it'll be worth the wait. Check out the minute-long video below in the meantime.