C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Smog Elimination...searched threads...???

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Old May 8, 2006 | 04:42 PM
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Default Smog Elimination...searched threads...???

I tried searching the threads...couldnt find exactly what I need.

Here's the the question...long form.

I have 85'..emissions not an issue. I want to eventually get smog pump eliminator bracket. But in meantime...can I remove everything but the pump and cap of the 2 tubes coming off the exhaust manifolds?

Also not running a convertor.

Thanks for any help!

Ken
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Old May 8, 2006 | 05:12 PM
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yes, i have the same thing set up on my car.
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Old May 8, 2006 | 05:17 PM
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Do I have to gut out the pump? Isnt it going to blow anything out of the connection/hose on the pump? And can I cut the two electrical connections that are a part of the smog config?
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Old May 9, 2006 | 03:05 AM
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My smog pump is still on, but everything else AIR/emissions related is gone. I'm too lazy to install my AIR elim kit so I'll eventually sell it is it sits long enough in the garage. Heck, I even took off my EECS. It wasn't working properly anyways...

And MustangHunter, I did cut those electrical connectors to my AIR diverter valves. I taped up the individual ends and tucked them under the harness somewhere. It won't hurt anything. You don't need to gut the pump. It makes a good pool toy, beach ball inflator.
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Old May 9, 2006 | 02:44 PM
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I got the smog pump elim pulley from BPP.
Came with caps to block off the manifold tubes (rubber caps with metal screw band things to hold them on).

Smog pump and a LOT of hoses came out of the engine, and it looks so much cleaner now
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Old May 9, 2006 | 02:48 PM
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Thanks...great info guys....pool toy inflator...lol!

What did you cap the tube ends off with...the exhaust manifold tubes?

Also...does it make any noticable sound with the pump not connected to anything?

Thanks!
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Old May 9, 2006 | 02:50 PM
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Hey Kopbet89c4...if you decise to sell that eliminator ...email me! Thanks!
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Old May 9, 2006 | 04:30 PM
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I will be doing this: the day your respective states start to enforce emissions testing.
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Old May 9, 2006 | 04:35 PM
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Would they emmisions test a 21 year old car? I would hope not but I could see that happening.
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Old May 9, 2006 | 04:41 PM
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I'll keep the stuff in a box for when they do! lol
I understand where you're coming from though...but MI only tests around Detroit...they've been talking about expanding for about 15 years now...and still havent. But when they do...you'll see a thread from a bunch of us asking how do you re-install a smog pump...or does anyone have a smog pump for sale??!!!! lol
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Old May 9, 2006 | 05:32 PM
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Originally Posted by red_johnny
Would they emmisions test a 21 year old car? I would hope not but I could see that happening.
yup. They can... California and Oregon, and I believe NY do.

Infact, CA goes back to 1975. Cwazy as it sounds.
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Old May 9, 2006 | 07:15 PM
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Considering that the Clean Air Act requires every State to have at least as much enforcement as the Federal Law, it's naive to say that a State doesn't have an emissions requirement. In your
State, who knows what might happen if someone went here:

http://www.michigan.gov/ag/0,1607,7-...6929--,00.html
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Old May 9, 2006 | 07:44 PM
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Originally Posted by MustangHunter
I tried searching the threads...couldnt find exactly what I need.

Here's the the question...long form.

I have 85'..emissions not an issue. I want to eventually get smog pump eliminator bracket. But in meantime...can I remove everything but the pump and cap of the 2 tubes coming off the exhaust manifolds?

Also not running a convertor.

Thanks for any help!

Ken
ken i stript everything, egr, egr sensor , air tubes, fuel emissions , air pump,plugged all the extra holes in TB..retuned and is running very well .. Except for the code 36 .. i just got...damm ..
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Old May 9, 2006 | 07:44 PM
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I think emissions testing will start to slacken not get tighter. As gas prices soar it will get to expensive not to maintain your car in good running condition also people will switch to hybrid cars.
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Old May 9, 2006 | 07:56 PM
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And having no EGR or other means to tame combustion temps is a good way to reduce performance, burn valves or scorch a piston.
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Old May 9, 2006 | 08:03 PM
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Originally Posted by SunCr
And having no EGR or other means to tame combustion temps is a good way to reduce performance, burn valves or scorch a piston.
my 87 is running 35,000miles , no troubles as you have indicated. older engines never seen egr and emmsions..besides my valves.. ARE MINE!
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Old May 9, 2006 | 09:35 PM
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Originally Posted by SunCr
In your State, who knows what might happen if someone went here:
http://www.michigan.gov/ag/0,1607,7-...6929--,00.html
Its been quiet around here for a long time. I didn't know we had somebody around here waiting to put a sniffer in someones butt.

Last edited by mseven; May 9, 2006 at 09:38 PM.
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Old May 9, 2006 | 10:06 PM
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Originally Posted by MustangHunter

What did you cap the tube ends off with...the exhaust manifold tubes?
You don't need to unless yours are bad. It's a one way check valve.
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Old May 9, 2006 | 10:11 PM
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Well, mine were bad. I verified this because I felt it sucking in my finger, meaning it was sucking air. I plugged mine with rubber nipple caps I got from AutoZone. Or what would be better is to unscrew the check valves and ditch them and find some bolts of the right size and thread size to screw in. Then nothing will enter. One of these days, I may just cut off the AIR ports and weld a metal patch over them.
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Old May 9, 2006 | 10:15 PM
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Just unscrew and remove that check valve. Take it with you to the hardware store, and find a metal cap that has the same threads. Use teflon tape or something else on the threads.
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