Wouldn't it be easier to do the research first and not spend the moneyI fully understand your reasoning for the electric supercharger and
you may be right, i guess i will just have to buy one and find out,
if it doesn't stack up? That's the same way Ginsu made all that money
from those steak knives*. Unless you have money to burn of course, in
which case go for it and report back your results.
They don't. Electrical engineering is a different science frombut consider this if it draws as much as it makes then how do
mechanical ones make more than they draw.
mechanics. The MX5 has an engine that makes approx 100kW of power from
a chemical (petrol) as its energy source.
To produce 100kW of electricity is no mean feat (mainly due to the
losses involved in the conversion process). Consider the size of the
MX5 alternator, which I guess can support about 60Amps, which is around
800W (or 0.8 of a kW).
A mechanical supercharger uses petrol to produce power. An 'electric'
supercharger can only ever use as much power as the alternator can
support (or maybe double that in headroom from the battery - i.e. as per
starting the car). So include the extra electrical losses involved in
converting the electrical energy to rotating fan energy again and
you might get say 0.5-1 kW from one, then you have to take away the
losses from having the big fan thing in the intake path to begin with.
The dyno reports I've seen tend to show about a 2Hp loss for most
electric superchargers.
cheers
zorruno
* this is is consumer science, not electrical, mechanical... or rocket
science (otherwise known as marketing hype...)
