Re: 91 200'isms

[Jeremy R King <kingjer@eng.auburn.edu>]

O beeee K beeeee.

I guess that's what I get for joining in mid-thread after emerging from 
finals.  In that case, you won't be talking about the same velocities for 
lower vs higher ambient pressures.  The lower ambient pressure situation 
(high altitude) will, as others have pointed out, simply take longer to 
spool up.  Both systems will ultimately have the same pressure AND yes, 
the turbo will ultimately end up spinning faster because you'll have 
thinner air moving at higher velocity.  The only limiter of this would be 
if your inlet air reached mach speed.  Then you'd experience choke flow.

Jeremy
'86 VW Quantum GL5
Auburn University, Alabama, USA
Hometown - Reidville, South Carolina, USA

On Mon, 18 Mar 1996, Eliot Lim wrote:

> 
> On Sun, 17 Mar 1996, Jeremy R King wrote:
> 
> > Y'all are forgetting/neglecting a pretty basic principle.  
> 
> [etc]
> 
> you missed the point.  we are talking about whether the entire system has
> excess capacity to compensate for thinner air at high altitudes...  think
> about how the wastegate works.  the wastegate is there to bleed off excess
> pressure. 
> 
> 
> eliot
> 
> 
> 
> 
>