Quote:
Originally Posted by ZR1Vette
They ran the test twice because they could not believe the results...said the LT5 was having better numbers than many new models.
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No new models get a tailpipe test. I suspect they were engaging in hyperbole... While the Z does well in relation to the test standard, new cars are not in the same universe as far as emissions requirements.
Because I bought my Aurora out of state, I had to get it tested to register it (ordered it, and moved to VA while it was being built). Otherwise it never would have faced the sniffer either, as within 2 years they went to the scan tool requirement.
This is a 2002 model with the baby Northstar 4.0L V8
The results:
15mph
HC ppm Limit: 67, Reading: 0
CO% Limit: 0.37, Reading: 0.01
NO ppm Limit: 524, Reading: 1
25mph
HC ppm Limit: 65, Reading: 4
CO% Limit: 0.36, Reading: 0.01
NO ppm Limit: 475, Reading: 3
And that was an older emissions standard, they get tighter every year. The car was an NLEV at the time. Cars now probably exceed the testing ability of those state machines.