How a Turbo Works on a Subaru WRX 2.5 Liter Boxer Engine - ABTL Auto Extras

Let's use a 2013 Subaru WRX to explain how turbocharging works. Turbocharging is the way to make a lot of horsepower out of a small displacement engine. But how exactly does this technology work? At the core, a turbocharger is composed of a series of rotating turbine blades that are driven via the engines exhaust gasses. As engine RPM's climb, the impeller is spun by the exhaust gases which then turns another turbine blade. The turbine then sucks in fresh air and forces it into the Subaru's intake. The denser air contains more oxygen and when mixed with fuel creates more power.

The Subaru WRX makes use of a hood scoop and intercooler in order to lower the temperature of the air entering the engine. Cool air contains more oxygen than hot air which in turn help produce greater amounts of power. Turbochargers do more than just increase performance, they aid in the fuel economy department too. Small turbocharged engines like the one in the 2013 Subaru WRX are designed to use modest amount of fuel in normal driving situations while offering additional horsepower at higher RPMs when passing or accelerating hard.

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[ajkelly]

Because I have the 2012 chevy impala LTZ and that 300hp feels awesome when I drive it, so I wonder how much hp the engine would put out with a turbocharger?

[CarsFanTV]

How can u guys compete against other car reviewers in YouTube with this kind of videos?

[hublock]

This is wrong, the intercooler is there to reduce temps into the inlet manifold, not the turbo.

[tthfavor]

Isn't the inter-cooler in-line AFTER the turbo?

[tigergreg]

I'm not getting it, Can you send me the car so I can understand this more clearly (*_*)

[bradygrimm]

"Anybody who has seen fast and furious" would know that they win races with nitrous and not turbo chargers...

[BurningSkyy]

Or perhaps anything with a turbo, i'm sure its not all about scooby's and evo's..i guess a v6 bi turbo is more complex than a 2.0/2.5 turbo soo they should not drive them either

[princeash]

10 min video you did it in 1.23sec, that's how fast you talk.

[ajkelly]

Someone should put a turbocharger on a 2012 chevy impala LTZ that would be fun :) but it would void the warranty as my dad told me :(

[kamigawa]

how can none car guys understand the video without any illustration ?

[Perplexiity]

"achieve better fuel economy" LOL

[bmwmsport]

any one who doesnt know how a turbocharger works shouldn't own a WRX/STI, or Mitsu EVO.