home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!olivea!spool.mu.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!sample.eng.ohio-state.edu!purdue!yuma!lobo.rmhs.colorado.edu!seanr
- From: seanr@lobo.rmhs.colorado.edu (Sean Reifschneider)
- Newsgroups: rec.autos.tech
- Subject: Re: supercharged vehicle
- Message-ID: <1992Sep14.184803.2843@lobo.rmhs.colorado.edu>
- Date: 14 Sep 92 18:48:03 GMT
- References: <n097bt@ofa123.fidonet.org>
- Organization: Rocky Mountain High School, Fort Collins, CO
- Lines: 42
-
- In article <n097bt@ofa123.fidonet.org> Larry.Mc.Donald@ofa123.fidonet.org writes:
- >seanr@lobo.rmhs.colorado.edu
- > (Sean Reifschneider) sez:
- >
- > > Since a Turbo runs off of the exhaust, it's esentially running off of
- > > waste energy. It costs nothing, but takes a while for it to come
- >
- > I've seen a lot of people here say that turbos are using 'free
- >energy'. Where is the turbo getting this 'free energy'? Turbos use
- >about the same amount of energy as a supercharger (depending on the
-
- Okok! If I see this point brought up once more, I think I'm going to barf.
- I put 'ESENTIALLY' in there because I was thinking of the backpressure,
- but didn't feel I should mention it in such a brief overview. Ok? :)
- >
- > > An engine driven supercharger is driven by the engine, hence
- > > it's always online.
- >
- >A turbo is driven by the engine and is always on line.
-
- Sorry. Turbos aren't 'online' until there's enough pressure from the
- exhaust gasses to get them spinning up at 100KRPM or so. That's why
- there's turbolag.
-
- > > There is no supercharger lag like there is turbo lag.
- > > But it's always drawing power from the engine, and so it
- > > uses up more gas.
- >
- > It tends to use up more gas because it is insensitive to engine
- >loading. Turbos use up more gas than normally-aspirated engines also.
-
- Ah. Thank you for re-stating what I had just said. :)
-
- >compressor would 'kick' back in and refill the tank. This gave about
- >15 seconds of boost to the engine with about 10kg extra weight added
- >to the car .
-
- Most people didn't like the idea of having a tank filled with high
- pressure air around when they got into an accident, and I don't blame
- them. Neat concept, though... :)
-
- Sean
-