The sti on the other hand is a variant of the wrx which has a 305 horsepower four cylinder 25 liter boxer engine with direct fuel injection. Type ra engine assembly shortblock 10103ad020.
Import Cars Featured Jun Super Lemon Subaru Wrx Super
Wrx engine vs sti engine. Except with a boxer engine. Compare all the wrx and sti engine specs like drive train stability and fuel economy to find the perfect car for your lifestyle take the official wrx wrx sti guided tour by subaru of america to see why this years new 2017 wrx is the best handling and best performing wrx ever. The wrx runs on the 268 horsepower 20 liter four cylinder boxer engine capable of producing 258 lb ft of torque. Type ra engine assembly longblock 10100cd390. Citing sources close to subaru forbes says the next wrx sti will arrive in 2021 and sports an all new turbocharged 24 liter boxer. This engine is a 25l power source and the result is 310 horsepower.
There is plenty different and plenty the same. Along with a smaller turbo on the wrx and intercooler. The sti also features brembo brakes 19 inch wheels and an upgraded suspension system. The wrx comes with 17 inch wheels and performance tires. The regular trim is powered by a 20 liter h4 that produces 268 horsepower and 258 lb ft of torque. The sti trim uses a larger 25 liter h4 that generates 305 horsepower and 290 lb ft of torque.
New engine in hand subaru can now stuff it into a new wrx. With the newer stis over the wrx the major difference is turbo size intercooler size and suspension pieces. No visual differences between the gr sti rod and in fact the 2018 sti and type ra rods share the same part number. The 2019 sti version gets a larger more powerful engine. Theres a premium version that comes standard with 18 inch wheels. They formed a rivalry that sadly no longer exists today but its legend.
The list would be so big it would be crazy. The 2018 subaru wrx is considered an exceptionally safe vehicle by the insurance institute for highway safety iihs. Type ra piston 12006ae550. Part numbers will vary for different variations such as piston diameter grade a vs. It is a more powerful car than the wrx as it capable of 290 lb ft of torque. In the war between the subaru wrxsti and the mitsubishi lancer evolution who ya got.
06 and up wrx has a 25l but different blocks are used and different heads. Subaru is retiring the ej20 engine with a special version of the jdm spec wrx sti benefitting from an assortment of mechanical and visual upgrades.
Gallery of Wrx Engine Vs Sti Engine
