Re: It's a Gas

[Ken Ames <ameskg@xxxxxxxxx>]

I was thinking more about lugging and detonation at low rpm/high boost.

Ken

Quoting Tom Jennings <tomj@xxxxxxx>:

> On Mon, 19 Sep 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.
> 
> I dunno, people stress engines all the time, it's called
> hot-rodding (or other things when it doesn't work out).
> 
> An engine that's slightly undersized -- say a 2.5L in a 3000 lb
> car -- with 4 - 8 psi boost at low speeds would not be hard to
> make reliable, and provide all the torque precisely when you need
> it.
> 
> 
> 
> 
> 
> 
> >
> > 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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>