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Posted by Chris Case [75.36.33.60] on Wednesday, December 12, 2012 at 12:35:09 :
In Reply to: a proposal that posted by clueless [201.202.24.76] on Wednesday, December 12, 2012 at 11:45:53 :
One problem is that engine driven chargers take horsepower to compress the air. Where as turbo chargers use waste exhaust gas.
But as to this particular idea of belt driving the compressor section of a turbo charger, those fans need speed. Lots of it. In excess of 100,000 rpm if my memory serves. Larger diameter woyuld mean less speed- your vacuunm cleaner has a 6" diameter and runs at 24,000rpm. Engine driven aircraft super chargers are a foot in diameter.
Plus, the bearings in a turbo charger are not built to hand the radial thrust applied by belt or gear drive.
I've got a better idea. Use your shop vac blower hooked to an inverter. Think of it as an electrically driven turbo.
Why don't you try that, and let us know how it works?
By the way, For blow through systems you need as much fuel pump pressure as standard + boost. And probably a way to control that to lower the pressure back to normal. Maybe a solenoid valve that would open a bypass around a regulator? Or you need a carb that wil work as well on 5 psi as on 15.
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