Variable Compression, Variable Displacement you decide

[Roger Heflin]

> 
> Roger Heflin wrote:
> > 
> > >
> > the little ones some have now) by putting a generator where you would
> > normally put the supercharger, and then putting an electric motor
> > with the blower part elsewhere.  With a bit of control in the electronics
> > you would probably be able to boost the low end (over a supercharger,
> > way over a turbo) and keep the high end from getting too excessive.  I
> > figure that doing things this way would probably boost the cost of
> > a blower kit somewhere around 1500 (big enough generator/motor pairs and
> > the control stuff get expensive).  It may boost the cost more, but
> > it would be alot more adjustable on the fly, even computer controllable,
> > ie knock avoidance by reduction in boost.   It would give the computer
> > to adjust both the boost and the advance to be optimal for power, or
> > fuel efficency.   I know turbodyne makes small electric blowers, but
> > as far as I can see they don't produce the necessary pressure at
> > volume at wot at higher rpms, so only boost the lower curve, which
> > with some engines (that have bad lower curves) would be a bit help,
> > but not on larger engines for any kind of racing.
> > 
> >                         Roger Heflin
> Why not hydraulic? Either way will be inefficient, but electric likely
> moreso
> -- 
The electric can be made efficient generators and motors run 90+ percent
efficient. , and it is controllable, where as the hydralic is less 
controllable (by a computer).

			Roger