How much does it cost to build a STI engine?
Basically, you’ll be doing well to be at $5,200 – $5,500 without things like a rugedized oil pickup, larger oil pan, Cosworth intake manifold, etc, etc, etc. And of course the turbo, IC, piping setup.
How much HP can a 2017 STI handle?
400-450whp
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 WHP does a WRX Sti make?
The recent Forbes report says a “source close to Subaru” told them (Peter Lyon contributor) the 2023 Subaru WRX STI “modifications will elevate the STI’s power to a figure hovering around 420 horsepower with maximum torque clearing 362 lb-ft.”
How much does it cost to fully build engine?
As for labor costs, most shops charge between $50-$100 per hour. The job itself usually takes between 10-20 hours to complete. Add these together, and you’re looking at a total of between $500-$2,000 for labor. At the end of the day, the cost to rebuild an engine averages out to between $2,500 to $4,500.
How much does it cost to build a Subaru engine?
The Cost of Rebuilt Subaru Engines
| DIY | Mechanic | |
|---|---|---|
| Partial rebuild | $1300-2000 | $2300-$4000 |
| Full rebuild | $2500-3000 | $3500-$6000 |
Is a stock Subaru STI reliable?
Subaru WRX STI Reliability Rating Breakdown. The Subaru WRX STI Reliability Rating is 2.5 out of 5.0, which ranks it 36th out of 36 for compact cars. The average annual repair cost is $758 which means it has average ownership costs.
Is a 400whp motor feasible?
The crankshaft and rods are quite strong from the factory, so this setup MIGHT make a reliable 400whp motor feasible. Or it may not. The benefit to this program is that block does not need to be split open.
How much more powerful is a 4B11T compared to a STI?
Both motors can support similar torque in OEM form, but the 4B11T will produce approx. 15-20% more power for a give torque output. Well its sounding like its not a good idea to try and increase the power in the STI. I love the car and the idea of having performance and AWD.
How reliable is a 400 watt Subaru engine?
Define reliable.. by my definition (in an OEM sense), any modern engine should last at least 200k miles under normal conditions without needing any major repairs. By that definition it doesn’t matter how much money you spend, you will never have a reliable 400whp Subaru engine.