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From: saugerties new york
Car: 91 firebird,mint
Engine: 305 tbi,lots of work done
Transmission: 700-r4 built by level 10 in nj
Axle/Gears: 3.73, auburn , precision
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this doesnt pertain to third gens specifically but it is a tech question......when someone floors it in front of you on the highway and you smell that rotten egg smell.......i know this is caused by the catalytic converter but by what process is it attained and what is it you are actually smelling?
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Car: 99 Formula
Engine: LS1
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It's sulfur that you're smelling if I'm remembering correctly. And I hear that is signs of a clogging cat. Though I'm not sure, cause soon as I put a new one on I got that smell.
alone the same lines.... i hit the speed govener in my car at 130 the other night... it was only there for a second and i started to smell something funny.... any ideas? it didn't really smell like clutch or oil....
Probably your rings melting 
Speed limiter means your fuel is cutt off, which means lean, which means dont hit your speed limiter.
Where in the northern oregon area did you find enough road to even hit your speed limiter

Speed limiter means your fuel is cutt off, which means lean, which means dont hit your speed limiter.
Where in the northern oregon area did you find enough road to even hit your speed limiter
What you are smelling is sulfur dioxide gas, and is the result of a very HOT cat converter, not necessarily a clogged one. It is actually over-converting the exhaust gasses, since the optimal operating temperaure of a catalyst bed is somewhere between 500-1,600°F. Temperatures approaching or exceeding the 1,600° level can cause conversion to sulfur dioxide instead of CO², O², and water vapor, like a good cat should.
I did it around 1:00 am on I5 near albany... gotta picture of it too, after i hit the govener though
I guess i'll have to remove the govener next time i burn a chip... or maybe lower it to about 70 so i don't ever speed again??! 
WARNING 443kb http://www.onid.orst.edu/~galvinb/whatthe.JPG
Thanks vader... I can see it all clearly now!
I guess i'll have to remove the govener next time i burn a chip... or maybe lower it to about 70 so i don't ever speed again??! 
WARNING 443kb http://www.onid.orst.edu/~galvinb/whatthe.JPG
Thanks vader... I can see it all clearly now!
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It felt solid as a rock at 120. No shakes or anything.. just the same as going 60..... I think the 1LE supspension probably has something to do with that.... once i got up to around 128 or so it started to hop a little bit, then i hit the govener and heard funny noises so i backed off.
you can see it! http://www.onid.orst.edu/~galvinb/myweb/veronica.htm
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Senior Member
Joined: Feb 2002
Posts: 885
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From: saugerties new york
Car: 91 firebird,mint
Engine: 305 tbi,lots of work done
Transmission: 700-r4 built by level 10 in nj
Axle/Gears: 3.73, auburn , precision
Originally posted by Vader
What you are smelling is sulfur dioxide gas, and is the result of a very HOT cat converter, not necessarily a clogged one. It is actually over-converting the exhaust gasses, since the optimal operating temperaure of a catalyst bed is somewhere between 500-1,600°F. Temperatures approaching or exceeding the 1,600° level can cause conversion to sulfur dioxide instead of CO², O², and water vapor, like a good cat should.
What you are smelling is sulfur dioxide gas, and is the result of a very HOT cat converter, not necessarily a clogged one. It is actually over-converting the exhaust gasses, since the optimal operating temperaure of a catalyst bed is somewhere between 500-1,600°F. Temperatures approaching or exceeding the 1,600° level can cause conversion to sulfur dioxide instead of CO², O², and water vapor, like a good cat should.
i knew vader would answer it, thnx
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