Ok, I'm know how to do somethings, mostly just things I've done already, thats how I know. I want to pull all that smog crap out since I dont get tested in SC. Yet, I have no clue how to do it. the tech article doesnt explain much. Now, I know how to unbolt and pull out, etc. Yet, I have no Idea where the smog pulley and all is even at. That's the main thing. So, if you guys that have done this could give me a step-by-step, I'd appreciate. I took out my cat and find it pointless to buy headers with it on it, when I dont use the crap. Thanks

 

The smog pump is around where the black circle is.

 

 

This is also for smog. Just remove all the tubes that go in and out of this.

 

Is all that smog stuff on the same side on a v-belt TPI motor? I want to remove my a.i.r. and maybe a few other smog items. Not really worried about my egr, but i'm buying headers that don't have a.i.r. hookup and i don't want any check engine light or rough running. There is a tech article on removing or unhooking the a.i.r. isn't there? I thought i'd heard that, but I don't remember seeing it in the tech section.

 

Is all that smog stuff on the same side on a v-belt TPI motor? I want to remove my a.i.r. and maybe a few other smog items. Not really worried about my egr, but i'm buying headers that don't have a.i.r. hookup and i don't want any check engine light or rough running. There is a tech article on removing or unhooking the a.i.r. isn't there? I thought i'd heard that, but I don't remember seeing it in the tech section.

 

I have always wondered, what is it? Will all the tubes come off easily, (non-pressurized) and do I need to plug any spots where the tubes went? Finally, any SES lights or rough idle? Thanks a bunch.

 

I just removed mine on my '87 IROC w/ V-Belts. The process should be the same for serpentine, but routing the belt.... yer on yer own!

#1: I started removing tubes/lines off of the square box. You can identify this because it has a line going from it, remove the box completely and move to the smog pump.

#2: Once the rubber lines and such were off, I moved my way down to the smog pump itself. It came out quite easily. Remove the bolts and pull it out.

#3: The AIR tubes.... if you are removing them, plug them with some brass plugs. Most parts stores will know what you mean. If using headers, its pretty self explanitory.

I'm sure I left out something but you'll figure it out. The job was REALLY easy. 2 year old could've done it.

As for the computer and how the car runs, my car runs fine. Not a single problem as a result from losing smog.

 

Well, if theirs an open hole somewhere, cap it. Especially where the air tubes are.

It may take alittle force to remove the tubes, but they should eventually come off.

The black box routes the air from the air pump to the exhaust manifolds, and may do something else that I don't know.

The smog pump is in the same place for any V-8. For routing the belt, all you have to do it cut it, or just save it incase you need it in the future.

The white circle is the belt for the air pump.

 

Is there a pn# for the belt that should be used after removal of the smog pump? If memory serves me, the tech article only goes for serpentine.

 

That belt only goes to the smog pump, so you can take it off.

 

Really? Kick ace. Btw, after rereading your post, you did state that, my brain just didn't process it. This seems almost too easy....

 

it should be easy...
there are some stuff in the pass. back sode of the engine that i still can't get out.

 

I tried to pull my tubing from behind the engine out too - no luck... I cut it back as far as I could... it'll do for now.

 

I got lazy and didn't have the right belt, so the pump is now pumping air into the engine compartment after I removed the tubes. Is this bad until i get it all done?

 

I can't see any REAL harm. I mean, in theory, all it'll be doing is pumping compressed air into the engine bay. Can you route the pipe or tube that is left on there somewhere under the car? If so, that'd be what I'd recommend.

 

Smokey yurnick discovered in testing that an air pump can add HP by pumping fresh air into the manifolds during exhaust scavaging.

-- Joe

 

As for use with headers, I'm not sure it has any effect.

 

to bad its doing the total opposite... its taking bad gases and recirculating them in the engine and then around the cat... BOOOOOOOOO GM BOOOOOOOOO! If you could re configure it to pump cold air to lets say... your plenum... you could pump more air into the engine as rpm's increased... but it would be hot engine air. I need to figure out a way to swap the pump on and off for inspection... im going to keep it for the cat, as it does help heat up the cat to burn off more crap.... if the 250* engine temp doesnt i guess...

 

lol that just made me think of making a blower from the air pump

 

The smog and air are not computer controlled, so you will not have an SES light come on or a rough idle. Soooooo much easier to work on the engine with that crap outta there! Expecially spark plug changes. That tube going around the back of the engine is a pain to get out. I just bent and wiggled it until it slowly came out.

 

Ermm..

What are you talking about??

Well, yes they ARE computer controled. Just not monitored. So you won't get a SES light.

-- Joe

 

what does that do?? i always thought it was for the heater/ac

 

No you are thinking of the item just to the right of that. Look under your hood, you'll be able to see where the tubes carry the coolant.

 

I got rid of ALL the emissions crap! It runs better without it.

 

What if you have one of those Jegs-bought Stage 2 chips... do you need the emissions stuff? I was told that it wouldnt work right otherwise... hence I still have my dead AC and all the smog...


p.s. I dont mean to butt into the thread!!

 

It would be best to call Jegs.

 

Thats the issue. unless your doing your own prom burning, the chip is designed for a stock motor.

Also, some of the emissions stuff ARE beneficial.

-- Joe

 

very little of the emissions stuff helps... it might help fuel economy in some way, but.... if you want fuel economy, get a civic.

 

THe emissions systems are designed to fix a poorly designed engine/ecm from poluting the environment. Fact is, you don't make any more power by pissing gas out the exhaust than you do by runing lean. Emissions fixes this from a environmental point of view.

Things like EGR, and AIR pumps however _can_ aid in the engines operation in the long run. And sometimes the added backpressure of a cat can actually increase the performance of an engine.

 

Also, you have to either keep it all, or loose it all, as far as I can tell. When you have some emissions and not others... your engine runs like crap (experience )

 

HAHAHAHAHAHH!! backpressure is good!!! oh dam... think about all the poeple that spent all that money on there exhaust systems and headers,m porting the heads to not have any, when they were all wrong!! So your telling me for 50 odd years, hot rodders are totaly wrong!! WOW...We better go talk to some of the NHRA guys and tell them to put a muffler on so they can increase back pressure and gain more power!!! and also to put emission stuff on so they can gain better mpg!!!

ok.. i dont **** gas out of the tail pipes.. is called tuning.
EGR and AIR stuff only helps to heat up the chamber faster so that there can be a clean burn. along with 220-240 engine temps, and constant exhaust being pushed back into the engine, i think that i doing more harm then good. If the engine runs clean with out all of that stuff, then why should i keep it? You dont gain a lot from swapping out your air pump, but it lightens up the front end, less parastic loss, and more work area are major benifits to me on working on my car.

 

Umm. Right. ...and when you learn a little more about cars, we can debate this more.

Your lack of understanding has been proven on the dyno for years. An absolute restriction is bad, none is bad too.

Maybe you should leave your EGR on when you get your ZZ4 cam, and your s/r heads so you don't detonate your 5.0 apart..
Or maybe you should just stop being so cocky and learn a little
more before you open your mouth again..


-- Joe

 

Backpressure is bad, low velocity is bad. You want the highest velocity with no backpressure. Velocity and backpressure are not the same.

 

Sorry to bring this back outta nowhere, but I haven't been around in a while. Still haven't done this yet. But, um I am curious, you say you have to remove all of this stuff? A.I.R. and Smog or else it won't run right? That doesn't seem to be what anybody else has said. Ok, so now i'm confused again. I'm just gonna remove the damn belt, if it runs ok, then i'm taking the pump off. Still ok, then i'll keep going from there.

 

It should run just fine if you take the belt off. That's how mine was for the longest time. The pump must have froze or something. I finally took everything else off and besides the extra working room, there was no difference in the way it runs.

 

Your kiddig right?

YOUR lack of understanding is amazing. Why would you want back pressure? Like as it was said before, velocity, not back pressure is what you want... WTF are you talking about? I am gunna keep my EGR, and im sure as everyone else that has removed the AIR system, my 5.0 will not detonate. Maybe you should stop spreading miss information. Backpressure is bad... Exhaust velocity is good... Id like to see that where back pressure has made an improvement over free flowing exhaust... So what you saying is that all the exhaust compaines are lying to us and that when you put on an exhaust system, you lose power? Why dont you go put a tennis ball in your exhaust... you can have all he power you want big fella..

 

Why in hell would you want backpressure. Why do you think we have open headers? Why do you think 4.42 sec cars have open headers? Are you trying to tell everyone that if i make a buttload of backpressure in a top fuel car im gonna go faster and make more power? hmmm maybe i should go send back my 600 dollar headers, both my cutouts and my 3inch y-pipe and my 3 inch exhaust and ill put the stock manifolds back on and ill get me a 1 1/2 inch exhaust and cat. damn maybe ill get even more power out of my car. everyone lets all hail anesthes:hail: :hail: he has solved the the question on how to make the most hp its restrivtive exhaust!

i swear people are soo dumb and ignorant. admit your wrong

 

http://www.bobsmuffler.com/cattest.htm

The fact remains, adding a cat and an electric air pump to my setup has reduced emissions on an 11 second car, stopped all decel related backfiring that a 5spd 730 setup is plagued with,
it gets boost quicker (supercharged) and accelerates quicker now.


When you guys are going as fast as me, gimme a call ok.

-- Joe

 

I can go down hill and accelerate quicker... but the fact remains... i bet you still have headers, and a cat back on that car am i right? Why? If backpressure is so good... why then? CAUSE BACKPRESSURE IS BAD right? let me see this link... this better show me two dyno sheets... one with free flow exhaust, and one with cat, stock muffler, and stock manifolds on the SAME ENGINE. if it doesnt, which i dont think it does, you have not proved crap. congrats on going fast and your car is hot, ill give you that... but you cant honesly belive that backpressure is good?

Ok, just saw the site you shot up there... thats a high flow cat... which doesnt promote back pressure... which again... has not shown me jack... i went with a high flow cat as well on my set up from catco. Put a stock cat on there... which DOES add back pressure...
Not to mention, you have a blower on your car... im sure that doesnt like back pressure. Put on a stock cat with stock mufflers, and manifolds... THEN run it on your dyno there.... then show me that your engine makes more power...

 

You should consider taking an anger management class.

-- Joe

 

You should consider reading some magazines and learning about Cars secondly learn how to shut your mouth when you wrong

 

If your knowledge comes from automotive magazines, than I guess that explains your ignorance.

When you've owned a race shop for as long as I have, worked in dealerships, built dozens of motors, read as much sae documents as you can take, do your own dfi tuning, etc _THEN_ you can tell me i'm wrong.


And btw, my original statement was: "And sometimes the added backpressure of a cat can actually increase the performance of an engine." Which has been proven in the "magazines" as well. I don't think I ever said to use stock manifolds instead of headers, etc. But you decided to go off and list all the things that would absolutely positively be a negative restriction. Fine, if thats how you argue points than whatever.

But since your our new in house automotive expert, I'll back off now. Do you have a column in super chevy?

-- Joe

 

HEY!!! CHILL OUT! I'm for one against back pressure myself, but stop the crap throwing. I started this post to get a step-by-step of how to take my smog pump and stuff off. Not to hear that I should leave it on because it'll help. And sure as hell not to hear people going at each other in the post to where this will get locked and I wont find out SH*T! So, for now, shutup.

 

Way to go Icedfire,
maybe they will go have a bee together and talk about chicks maybe then they can agree.
If removing the air pump and smog stuff won't effect engine performance what does it do to emissions. I'm thinking of pulling mine off. I think I might have to get tested in November, not sure if not I'm good till next Nov. by then It will be registered elsewhere. I am though curious as to how much effect it will have on the tests.
Scoty

 

The amount it affects your test is largely based on how clean your engine burns in the first place. The smog crap only further helps out with lowering the amount of pollution. I passed pretty easily without an air pump.

 

Did you have cats though?

I've got straight pipes in place of the stock dual cats.

 

Yes, I have a single cat which helps out dramatically. I would never pass emissions without one.

 

As far as I know, you can have the cleanest running engine ever with all the emissions... and still fail without a cat... but that's from experience lol

 

IF you have all the emissions.. that would mean you have a cat right? If you dont have a cat, and they inpect for it as all emissions testing states do, and you still come up clean, you will not pass and possible get a fine for removing the cat.