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Old Fri, November 20th, 2020, 09:40 AM
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2 Cents Superchargers, Turbochargers, and Performance

So I found this conversation on FB and thought it brought up some good points.

https://www.facebook.com/charlie.fis...58937041470148

It is an interesting discussion between blowers and turbos, and had quite a few good points. I have a number of thoughts on the subject and would very much like to continue the discussion here, if anyone is interested.
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Old Fri, November 20th, 2020, 10:44 AM
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I'd be interested too, and have to admit I don't really know the difference between superchargers and turbos, so I'll look that up in a moment.

I DO know that what counts is the actual mass of air that is delivered to the engine - more air mass means more fuel can be added and that equates to more power. Heating air reduces it's mass/volume, so a cool supply is good. Pressurizing air tends to heat it, but you can't increase mass without also increasing pressure. If a turbo can increase the mass more than a supercharger, or, if the turbo takes less engine power to deliver identical mass than a supercharger, then the turbo will win.

So, that's my rather "obvious" input for now. My deck installers have just arrived, so I have to leave.

Edit: OK, I've now done a bit of research and found that I DID sort of understand the difference between a turbo and a supercharger. I learned though, that a supercharger doesn't have the lag that a turbocharger has since the supercharger is driven directly by the engine. I can see why one is preferable to the other depending on the use. I can't help but think, though, that with proper engineering, you could get equivalent power from either device.


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Old Fri, November 20th, 2020, 12:48 PM
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Without doing any research or phoning a friend that races mustangs.
WAG 1-turbo is scavenging energy that is not very useful while blower is running a belt, gear set and compressor directly on the engine.
WAG 2- turbo intercooler dropping that temp a bit? Do they put intercoolers on blowers?

A little bit of both?

Or, just like a kid in the back seat making a long drive feel longer, blowers just whine more and that's a drag on everyone.
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