How much HP can a STI handle?
Skim through the Subaru forums and you’ll find the question on so many STI owners’ minds, “how much horsepower can my EJ257 handle?” The answer is different for everyone, but the general consensus is that the 400-450whp range is when you might want to clear out the garage and get ready to pull a motor.
How much power can a EJ257 block handle?
400 whp
They will hold up to 400 whp (again as shown in our PPIHC car), but if you want to push up to or beyond that power level, a set of aftermarket H-Beam rods would be recommended.
What STI has the most horsepower?
WRX STI
The next-generation Subaru WRX STI may boast as much as 400 horsepower from a re-tuned, 2.4L turbocharged boxer engine, making it the most powerful factory STI ever to be offered in America.
How much power can stock STI clutch handle?
The stock clutch can handle about 360 lbs torque.
How much HP can a stock EJ25 block handle?
300 whp: The EJ20/EJ25 engines can handle 300 whp maximum with stock internals with no further modifications other than a proper fuel management tune.
How long does a stock STI clutch last?
They’re designed to last at least 50,000 miles, but it can vary based on how well you take care of your car and what your driving style is. If you do a lot of city driving, you may find that your clutch wears out faster due to the frequent shifting between lower gears.
What’s the highest horsepower Subaru?
Subaru WRX STI S209
The 2019 Subaru WRX STI S209 will be the highest horsepower STI ever produced. It’s powered by the EJ25 2.5-liter turbocharged Boxer engine that has been “thoroughly reworked” by Subaru Tecnica International and comes with an estimated 341 horsepower.
How much horsepower does the 2022 Subaru STI have?
271-horsepower
271-horsepower 2.4-liter turbocharged BOXER engine.
Which year STI is the best?
The 2006 Subaru Impreza WRX Is The Best This was the year that Subaru introduced a 2.5-liter turbocharged four-cylinder engine for the STI. Drivers behind the wheel of their WRX STI enjoyed 300 bhp thanks to the turbocharged engine, while drivers of the base model had 230 bhp.