Re: high nox- won't pass 1988 240 Michael Pardee wrote:
>
> Being a grump, I am certain the NOx will not be improved. The on-line
> literature describes the NOx benefits as coming from decarbonizing, although
> I have never known decarbonizing to be a fix for failing NOx emissions in
> any car... and I've been DIYing since before any NOx controls or testing
> were implemented in the US.
>
> Indeed, the unorthodox theory of "radiation containment" would ensure a
> *higher* NOx if it actually worked as described; the higher combustion
> temperatures would mandate more NOx formation. I canna change the laws of
> physics....
>
> Mike
The idea behind decarbonizing is that it reduces the effective
compression ratio, which will lower combustion temperatures, which will
reduce NOx formation. In practice, my uncle once used GM Top End
Cleaner in his '84 240 (among a couple of other things) to pass PA
emissions. (This was before he (and I) knew about disconnection of the
vacuum line going to the ignition computer to reduce NOx.)
This is not to say (in fact quite the opposite) that I believe that the
product under discussion will have any effect on emissions, positive or
negative.
--
Mike F.
Thornhill (near Toronto), Ont.
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.) |