Re: It's a Gas

[farna@xxxxxxx]

I was thinking the same thing. Should work well for a dragster, but that's about it. 
But Tom does have a point. It takes more power to start a car moving than to keep it that way. Sounds like this would be good for a small engined economy car -- or rather an even smaller engined one. Lots of boost for acceleration, little for cruising. Like most supercharger applications, looks like this would work best if the engine was specifically designed to work with it. Using the econo car example, a strong bottom end 1.0-1.5L engine would work well -- maybe even better on a diesel. 

On September 20, 2005 Ken Ames wrote:

> Isn't this kinda the opposite of what you might want? Lots of boost at low speed
> will _really_ stress an engine, you want more boost at higher rpm where the
> engines volumetric efficiency drops off.
> 
> Ken Ames
> 
> Quoting Tom Jennings <tomj@xxxxxxx>:
> 
> > On Mon, 19 Sep 2005 farna@xxxxxxx wrote:
> >
> > > The electric turbo looks neat, but boost goes DOWN with speed.
> > > Starts at 5-6 psi, goes down to 3 psi at higher speeds. Takes to
> > > much juice to spin it up at high speeds. I think I'll stick to the
> > > remote setup -- can do that with mostly salvaged parts too.
> >
> > Why is this a problem? Except for race conditions, boost at low
> > speeds, and less so at cruise, would seem perfect. A small
> > displacement engine is fine flat-and-level, but lacks torque for
> > accelleration.
> >
> > The real advantage to the electric supercharger would be software
> > control -- essentially the times when you'd be lugging it, you
> > boost the hell out of it, and back off at highway cruise.
> >
> >
> >
> >
> >
> >


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