How much HP can a STi block 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.
Are all STi blocks the same?
Block, rods, pistons are all exactly the same. Basically anything below the heads are identical. Heads are different. WRX has SLIGHTLY higher compression ratio, I think by around 0.2 (something like STi 8.5:1, WRX 8.7:1).
How much HP can a 2004 STi handle?
It will handle near 400-450 HP crank like sphinx said.
Is the 2004 STi drive by wire?
The 2004 STi is drive by wire. Absolutely & definitely. And mine has a similar lag between pressing the gas pedal and the revs responding. However, this is only evident when depressing the pedal very slightly.
Can you take the wing off an STI?
Sledgehammer. Tie a tow strap to it and a fire hydrant and on 3 hit the gas and yank it off. Just open your trunk, and there will be bolts in the top of the trunk, you unscrew them, and… then the wing will come off.
How much does it cost to fix Ringland failure?
Well the price for a cracked ringland if you can’t build the engine in your garage or you lack the know how to do it is roughly 6300 dollars.
How much power can a 2005 WRX handle?
Official ClubWRX arms dealer. The stock bottom end on a WRX can safely handle anything under 300whp which equals about 380 or so to the motor or less… after that, it’s on borrowed time.
How does drive by wire work?
Drive-by-wire is a catch-all term that refers to a number of electronic systems that either augment or replace traditional mechanical controls. Instead of using cables or hydraulic pressure to control a vehicle, drive-by-wire technology uses electronic systems to activate brakes, control steering, and fuel the engine.
What can I add to my Subaru WRX STI?
Many people often throw in a few extra modifications to their cars when going stage 2 that can allow for even more power without compromising driveability or reliability. These modifications include larger fuel injectors, a better fuel pump, a front-mount intercooler, equal-length headers, a boost controller, and an external waste gate.
How big of a turbo do you need for a STI?
Just consider everything, because you will have to spend a lot of money to go further. The stock turbo maxes out around 350awhp, and is losing top-end boost well before that. If you want a strong 330awhp or more from an STi, you need a bigger turbo.
Do you need better tires for a Subaru STI?
While better tires will improve any car, overall, the STi is already very well set up for handling and braking. To raise the excitement level, you can just dive right into adding horsepower. This post is meant to be a generic, easy to understand guide for anyone who is looking into modifying a Subaru STi.
What kind of alcohol do you use for STI?
Many people use different types of alcohol, commonly methanol, to allow them to push the STi’s boundaries a little further. Basically, alcohol burns a little cooler, thus reducing the risk of knock for cars running around 400awhp on a stock engine.