turbo spool

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what makes a turbo spool? is it the intake that makes the spool sound?

posted by  silvia_star

It's the turbocharger gaining RPM that causes the spool sound (turbochargers operate in RPM ranges up to 170,000+ RPM).

posted by  Bino

exhaust gas makes the turbo spool

posted by  black_plague

I guess technically the turbocharger makes that classic spool sound when it's at steady state as well, so the sound is due to the incredibly high RPM at which a turbocharger operates.

posted by  Bino

i honestly dont think he is asking about the sound. also, not all turbos operate at 170,000+ rpm's. another reason why some turbos make a whirring sound is the type of bearings they use.

and yes, it's the exhaust that spools turbos up.......

posted by  Inygknok

I am aware of that, I intended that to say some turbochargers operate at RPM ranges up to 170,000+ rpm. Most of the larger turbos people use do not actually spin that high.

posted by  Bino

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