Electric supercharged 300 HP| Grassroots Motorsports forum |

carguy123 SuperDork
11/6/10 7:40 p.m.

http://www.insideline.com/mazda/rx-9/mazda-plans-new-rx-9-sports-car.html

New RX9. Details are still sparse, but at least they're thinking of it!

RoosterSauce Reader
11/6/10 9:05 p.m.

What if I want three rotors and no silly lectric supachaga

93celicaGT2 SuperDork
11/6/10 9:26 p.m.

For what it's worth, the 1.3 rotary is often referred to as 2.6 or even 3.9 litre motor for emissions purposes. Depending on where the writer lives, it's probably correct.

Everything else, i'm with you on.

MrJoshua SuperDork
11/6/10 9:35 p.m.

There are many manufacturers experimenting with electric turbochargers. Pretty cool actually.

alfadriver SuperDork
11/6/10 9:40 p.m.

MrJoshua wrote: There are many manufacturers experimenting with electric turbochargers. Pretty cool actually.

And just to be clear, they are talking about electric assist turbos. They are an expensive solution to turbo lag.

MrJoshua SuperDork
11/6/10 9:43 p.m.

alfadriver wrote:
MrJoshua wrote: There are many manufacturers experimenting with electric turbochargers. Pretty cool actually.
And just to be clear, they are talking about electric assist turbos. They are an expensive solution to turbo lag.

Brushless motors and controllers aren't that expensive.

JohnyHachi6 New Reader
11/6/10 10:08 p.m.

I can tell you right now that an electric supercharger (that builds any appreciable boost) is totally out of the question unless it's a hybrid . From a thermodynamic analysis you can show that it takes something like 20 hp or so to compress any reasonable about of air (assuming a 100% efficient supercharger). That means you would need the equivalent of two really big starter motors turning the supercharger all the time - think of how much electric load that is. You kill a normal battery in less than a few minutes if you crank your engine continuously and that's assuming you don't just burn out your starter motor or the leads to it.

carguy123 SuperDork
11/6/10 10:55 p.m.

As I understand it from earlier articles they were upping the displacement of the rotary, adding direct injection and some sort of multiple spark system (other than the current 2 spark plugs).

These were things to increase the powerband, torques and would also increase gas mileage and lower emissions.

It's supposed to be the next gen rotary. This is the first I've heard of electric superchargers or assisted turbo chargers.