robert at s-cars.org
Mon Sep 24 00:08:54 EDT 2001
"all else being equal" is required. This implies that temperature remains
constant. Granted, we are operating under conditions in which
heating will have a significant effect. This is what you are reporting
below and I find no fault with your report - but _"all else"_ is _not_
equal in your setup. If it were then flow rate would, indeed, be directly
proportional to pressure at the relatively low pressures we are talking about.
At 10:12 PM 9/23/01, JShadzi at aol.com wrote:
>Yes, proportional, but hardly linear, flow decreases at boost/pressure rises
>(just like a fuel pump), and the misconception exists in that fact. In my
>own car running a K26 (currently), the car is actually faster at 14psi then
>at 18psi- where the inefficient K26 begins heating the intake charge beyond
>the ability of the intercooler.
>In a message dated 9/23/2001 6:10:45 PM Pacific Daylight Time,
>robert at s-cars.org writes:
><< However, Javad, all else being equal, flow will be more or less directly
> proportional to pressure at the kind of pressure we experience in real
> world situations.
> At 08:56 PM 9/23/01, JShadzi at aol.com wrote:
> >No, it does not have an effect, remember, it is flow that makes power, not
> >boost. A little swelling of the hoses will not affect flow, and
> >realistically, will not reduce pressure either (theoretically it does, but
> >may not even be measurable within' reasonable tolerances).
> >A common mistake many make is thinking that boost (how many psi the
> turbo is
> >producing) makes power. It is flow, or how much net _air at a certain
> >pressure_ is being fed into the combustion chamber. Two turbos, a K24 and
> >K26 can be making 15psi for example, but the K26 will be flowing
> >more air. Of course, temp (turbo efficiency) plays into this, as do other
> >Pressure alone gives no indication to how much air is actually flowing into
> >the motor. Anyway, end of rant ;)
> > >>
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Robert L. Myers 304-574-2372
Rt. 4, Box 57, Fayetteville, WV 25840 USA WV tag Q SHIP
'95 urS6 Cashmere Grey - der Wunderwagen ICQ 22170244
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