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Subject:Re: Tips on passing emissions
From:Dave Mcneely
Date:Fri, 29 Jun 2012 11:27:55 -0500

---- Stuart MacMillan <stuartmacm@GMAIL.COM> wrote:
>The second, and
> most important, is that he was able to talk the tester out of using the
> funnel they were supposed to stick on the wand for short tailpipes like the
> Vanagon's.  I think that had the most to do with it because without it there
> was more air dilution of the exhaust gasses.  That stupid funnel kept the
> gasses in the tailpipe longer, and I didn't think it was fair.  They didn't
> listen to me though.

Well, the test conditions are set to be constant for all vehicles.  One is not testing against the ideal, but against the conditions of the test.  If what is supposed to be a constant is varied, then the result will not yield the desired information -- whether the vehicle is operating properly as required.  mcneely

>
>
>
> These were the days before we had dynamometer testing, so YRMV.  Syncros are
> not dyno tested though for obvious reasons.
>
>
>
> Good luck!
>
>
>
> Stuart
>
> Exempt '85 Westy
>
> Seattle

--
David McNeely