[Shotimes] Not your normal S H O

[Alan Fanning]

The new dyno tests in my area (San Jose) added NOx testing, which was never
tested previously. And I have read where they introduced this test with
relaxed standards with the objective of squeezing them down as time goes on.
Didn't want to flunk too many vehicles the first year, or something like
that.  So, it's not obvious that the test standards relate directly to the
EPA standards.

A curious factoid is that my '82 F150 w/4.9l inline 6 managed to meet the
test requirements of my '91 SHO! The truck's test limits are somewhat
higher, but not so much as I would have expected for a non-EFI engine with
relatively unsophisticated engine management.

    Alan


wrote:

> Yeah, I don't believe that's true. Each model year can only be tested
> against the EPA standards for the year.
> 
> OTOH, "static" testing is one thing (probe up the pipe at idle), but adding
> the dyno testing could make life tougher, even with the same standards. It
> could also be that they added some standards for a particular model year
> that weren't used before, and/or they tightened their margin of error.
> 
> FWIW, I had to get my motorcycle tested when I lived in Louisville.
> Standards for a 1979 car were pretty loose, and whatever standard they used
> for 1979 motorcycles had to be loose enough to drive a truck through!! The
> bike came through the test looking like the exhaust was pure air, but that
> was against whatever the 'standard" might have been.
> 
> Ron Porter
> 
> -----Original Message-----
> From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
> On Behalf Of Dave Kegel
> Sent: Wednesday, November 16, 2005 10:56 AM
> To: shotimes@autox.team.net
> Subject: RE: [Shotimes] Not your normal S H O
> 
> Really?  That's interesting.  They must still be pretty "relaxed" standard
> though, right?.  No way could they test an 86 car against today's standards.
> 
> Dave Kegel