just for your info w/o meth injection stock turbo sti will make around 280-300whp and 320-330 wtq. with meth probably 320-330whp with about 350wtq-360wtq. go search the sti section of the cobb forums, you will find much better numbers with intake, one step colder plus, TBE and a protune from agile. like 360, 330 evilSTi7
Full Answer
How much HP can an STI handle?
I'm not sure how much an STi can handle before internal mods are needed but you are wrong with the 75 hp figure. Stock the STi puts about 255-260 hp to the wheels the 300 is at the crank so you are looking at 115-120 hp increase to the wheels.
Will a stock STI transmission hold 400hp?
Yes it will hold 400hp which you failed to specify to the crank or wheels. ****! If the transmission is sufficient for time attack cars, then you WRX will be fine. You will more than likely break an axle before the transmission. I think someone on NASIOC was running 800hp on the stock STI transmission. The real concern should be TORQUE!
Is the STI transmission good enough for a WRX?
If the transmission is sufficient for time attack cars, then you WRX will be fine. You will more than likely break an axle before the transmission. I think someone on NASIOC was running 800hp on the stock STI transmission.
How much hp do you need on a stock cylinder?
At around 500 – 550 whp, and/or if you are making over about 24 psi of boost or more, the stock cylinders would need to be reinforced to hold that power reliably. This is where the closed deck blocks from companies like IAG with their Stage 2.5 and up come in.
How much power can stock STI turbo make?
just for your info w/o meth injection stock turbo sti will make around 280-300whp and 320-330 wtq.
How much HP can a STI handle?
400-450whpSkim 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 can a stock block STI handle?
Your engine and can blow with as little as 300 whp with a bad tune. There are plenty of STIs out there making well over 400whp also, but the general concensus in this forum about how much WHP the STI block can handle is 400whp.
What turbo comes on a stock STI?
IHI VF48 TurbochargerHere, you are looking at the Subaru OEM IHI VF48 Turbocharger. This is the factory turbocharger that came equipped in the Subaru WRX STI from 2008-2019 models and makes for a nice upgrade over the factory turbocharger.
How much HP is a Stage 3 STI?
STI 08-18 HPF STAGE 3 | 276kW.
How much HP can a stock EJ25 handle?
300 whp300 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 much HP can a WRX take?
When you get behind the wheel of the WRX STI and WRX STI Limited models equipped with the standard 2.5-liter DOHC turbocharged engine, you'll receive a whopping 310 horsepower.
How much horsepower can you get out of a WRX?
The Subaru WRX has tremendous performance out of the box. The latest version (the 2015+ model) has 268 horsepower. And the STI model has 305 hp! The WRX can do 0-60 in 5.4 seconds.
What Block does 2020 STI have?
The 2019-2021 STI has upgraded blocks which came from the type RA, hence type RA blocks. The type RA block is sturdier and the pistols reinforced.
What size turbo is in a STI?
The WRX STI's turbocharged 2.5-liter flat-four is eager to rev and pumps out a characteristic flat-four burble from the car's quad exhaust pipes.
How big is a vf52 turbo?
Turbine Wheel: 53mm/48mm.
What size turbo is in the 2018 STI?
The 2018 STI packs the same 2.5-liter turbocharged flat-four that still makes 305 hp and 290 lb-ft of torque and still comes exclusively with a six-speed manual transmission. It also still has that characteristic boxer rumble, something the standard WRX's 2.0-liter turbo lacks.