a stupid question.

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vrooom

Original Poster:

3,763 posts

274 months

Thursday 22nd January 2004
quotequote all

Would fitting a electric motor with high CFM on top of air intake work ?
bit like supercharger with electroic motor

I see no reason that wont work apart from air flow of car moving?

just thought

Jay

docevi1

10,430 posts

255 months

Thursday 22nd January 2004
quotequote all
the pressure would not be created in the same way that the turbo/supercharger creates power, you may find that the air inside the air-filter doesn't have the quantity required by the engine on full bore either

kenmorton

271 posts

257 months

Thursday 22nd January 2004
quotequote all
It would work - but consider the physics.
Typical average supercharger at full revs might be pulling 20 hp from the crank = 15,000 watts. Therefore electric motor for the fan operating from 12v electrics will need 1,250 amps !

Apache

39,731 posts

291 months

Thursday 22nd January 2004
quotequote all
The laws of physics predict your electrical demand will outstrip your boost gain by the simple law 'there aint no such thing as a free lunch'

deltaf

6,806 posts

260 months

Friday 23rd January 2004
quotequote all
Theres an electric turbo on the market, but i dunno hardly anything about it.
Do a search.

docevi1

10,430 posts

255 months

Friday 23rd January 2004
quotequote all
deltaf said:
Theres an electric turbo on the market, but i dunno hardly anything about it.
Do a search.


aren't they fitting electic blowers onto turbo's nowadays so that the lag isn't as noticable?

Apache

39,731 posts

291 months

Friday 23rd January 2004
quotequote all
See here,

http://home.arcor.de/hildst/AN190201e.html

apparently it uses an electric motor to 'spool up' therefor reducing lag

chief-0369

1,195 posts

259 months

Friday 23rd January 2004
quotequote all
current drive systems for superchargers are reasonably efficient. The charger itself may take xx no of HP but most of that does go into driving the blower.

elctric motors are extremely inefficient, compaired to a simple belt drive arrangement. considering you would have to drive a generator the connect that to a motor running the compressor.

So much energy would be wasted, it would be pointless. I see no reason why it wouldnt work if you used beefy enough electronics, but there would be absolutely no gain.