Exhaust Pressure sensing

[bcroe at juno.com]

Right, for CONSTANT amount of gas.  But since one end of the 
tube is open, any variation in pressure will immediately be
cancelled by gas moving through that opening. 

Bruce Roe

On Wed, 27 Feb 2002 09:14:28 -0600 "Eck, Joel" <Joel.Eck at COMPAQ.com>
writes:
> Actually, it will. Check out this site: 
> 
> http://dbhs.wvusd.k12.ca.us/GasLaw/Gas-Gay-Lussac.html
> 
> It describes Gay-Lussac's gas law, which shows the direct correlation
> between temperature and pressure of a gas given contant amount and
> volume. As temperature increases, pressure increases, and, as
> temperature decreases, so does pressure.
> 
> -----Original Message-----
> From: Greg Hermann [mailto:bearbvd at mindspring.com]
> Sent: Thursday, February 21, 2002 9:20 PM
> To: diy_efi at diy-efi.org
> Subject: Re: Exhaust Pressure sensing

> At 7:39 AM 2/21/02, Andris Skulte wrote:
> if you have a length of copper
> tubing, the temperature will have dropped plenty by the time it 
> gets to the gauge. 


> The temp drop will have NO effect whatsoever on the pressure
> measurement.
> 
> Greg

----- End of forwarded message from owner-diy_efi at diy-efi.org -----
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