Re: Re: [Chrysler300] 300F smog test

[<smopar@xxxx>]

> Keep in mind that the emission limits on the smog check test that was run in CA are designed to catch gross polluters, and even then they don't catch the cars with high cold start emissions since the test is run warmed up. The official test is the Federal Test Procedure (FTP) and it is a cold start test with speeds up to about 55 mph. When the older cars are run on this test, the HC and CO numbers from the cold start are sky high and NOx levels at the higher speeds with high compression efficient engines are also sky high. The smog check test doesn't tell much about overall emissions, and is just an inexpensive screening test. I had my 1970 Chrysler run on the FTP test, and it was out of sight on all pollutants - and it is correct and runs great. I also ran competitive vehicles from the early 70s and they weren't any better. The new cars are really much much cleaner. Citing smog check tests is misleading. That said, though, CA is generally leaving alone the pre-73 cars since they are not used that much and collectors keep them in good condition.

> From: "Laurence G. Johnson" <laurence_g_johnson@xxxx>
> Date: 2003/08/25 Mon PM 10:26:17 EDT
> To: dan300f@xxxx, Chrysler300@xxxxxxxxxxxxxxx
> Subject: Re: [Chrysler300] 300F smog test
> 
> This serves to point out that the 60's high performance and muscle cars 
> weren't the big offenders with regard to air pollution. Their engines were 
> fairly efficient and had good combustion characteristics, thats why they 
> made a lot of power. They took the rap while the real offenders were the 
> millions of six cylinders and low compression V-8's that powered grocery 
> getters and family sedans.
> 
> 
> >From: dan300f@xxxx
> >To: Chrysler300@xxxxxxxxxxxxxxx
> >Subject: [Chrysler300] 300F smog test
> >Date: Mon, 25 Aug 2003 14:48:48 EDT
> >
> >Hi all:
> >
> >If any of you are interested, out of curiosity, I took my 300F down and got
> >it "smogged." Below is a comparison of the results as compared with my '76
> >NYer with the emission controlled 440. The tester said the F tested very 
> >good
> >considering what was under the hood and that it had no emission controls on 
> >it.
> >
> >15 mph '76 NYer 300F
> >%CO2 13.6 12.2
> >%O2 2.0 1.2
> >HC (PPM)
> > Allowed 175
> > Measured 36 153
> >%CO
> > Allowed 1.17
> > Measured 0.03 1.50
> >NOX (PPM)
> > Allowed 1215
> > Measured 223 1465
> >
> >15 mph '76 NYer 300F
> >%CO2 13.5 12.6
> >%O2 2.0 0.9
> >HC (PPM)
> > Allowed 142
> > Measured 34 138
> >%CO
> > Allowed 0.97
> > Measured 0.02 2.10
> >NOX (PPM)
> > Allowed 1075
> > Measured 279 1156
> >
> >Just FYI. Hope the columns line up when received. In AOL they sometimes 
> >do
> >not.
> >
> >Dan Reitz
> >Northridge, CA
> >
> >
> >[Non-text portions of this message have been removed]
> >
> 
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