*engineering

Adding video to channels (Engineering) - requested by jonny.

What's the difference between a turbocharger and a supercharger? Isn't it something like that the supercharger boosts power at lower revs, while a Turbo requires higher revs?

In Australia we have the Euro spec VW's, and my Golf had a 4 cylinder 1.4 litre engine with a turbocharger and a supercharger putting out 118 kilowatts (around 160 hp). Here in North America they have that 5 cylinder, 2.5 litre engine that produces 170 hp. Only 10 hp difference between a 1.4 and 2.5 litres!

As far as I am aware ---edit---

as far as I know. <-- I didnt

A supercharger is driven directly by the motor, whereas a turbocharger is driven by exhaust gases. So yes, a turbo requires higher revs to produce enough exhaust gas to spin the turbine - thus "boost lag".

What the hell? this should be in the top 15.

*promote

Promoting this video and sending it back into the queue for one more try; last queued Thursday, February 21st, 2013 1:34pm PST - promote requested by jonny.

Nitpicking a bit, 'supercharger' is a more general term for the device responsible for forced-induction, and 'turbocharger' is the specific case where the supercharger is driven by exhaust gasses. So a turbocharger is a type of supercharger.

The title has a grammatical error in it. It should read How Turbo-Charger is are made. Or maybe How Turbo-Chargers are Made.

Seems a little low tech for the casting. I would of figured it was all automated by now. Still it's interesting to know how these are made.

If it ain't broke...

The final machining is completely automated. Although the rate 3D printing tech is advancing it will probably replace the plug and mold creation like this very soon.

Great piece of engineering porn there.

Anyone else think the narrator sounds like the guy who does those "true movie trailers" vids?

I mean, it's like this is his normal voice and he drops it down for the trailer vids.

Tags for this video have been changed from 'turbo charger, turbo, how its made' to 'turbocharger, turbo, how its made' - edited by xxovercastxx

Remember that hp ratings (or kw, for that matter) are peak numbers. Those two engines may also have very different performance characteristics. Don't fall into the trap of thinking hp is the only measure of performance; it's arguably the least informative.

Although in this particular instance, it's pretty hard to make a case for the 2.5. I imagine they kept it in place here for financial reasons or red tape or some such.

Well, I only have a basic understanding of vehicle engine mechanics, but knowing the kw/hp is some idea of what you're going to get out of the car's performance. That and the torque, and the torque peak was the same on the 1.4TSI as it was on the 2.5, but supposedly across a wider rev range.

Of course you also have to count for weight, but since they're the same car, that doesn't really matter in this case