RE: Re: Re: Ping Report - Updated

From: Bernd D. Ratsch (bernd@texas.net)
Date: Tue Jan 25 2000 - 09:47:04 EST


Yup, I agree. That's what they explained to us in the BAR-90 class years
ago. (Smog Certification)

- Bernd

-----Original Message-----
From: owner-dakota-truck@buffnet.net
To: dakota-truck@buffnet.net
Subject: Re: DML: Re: Re: Ping Report - Updated

I dont know where you learned all this but I dont agree. The gases "cool"
the combustion process but they sure dont "cool" the combustion chamber.
They're exhaust gases! The EG is a mixture of combustion byproducts and
unburned HC. By recirculating this into the CC, you do two things. You
burn the formerly unburned HC and you muck up the fresh charge. The EGR
mixes in with the charge, hopefully slowing down the combustion process.
Slower combustion equals more advance, equals better burn, equals even
better emissions (but a slight decrease in power).

--
Dave



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