Skip to main content ↑ ↓
Topic: Air pump/smog pump question (Read 2748 times) previous topic - next topic

Air pump/smog pump question

Reply #15 –
I used a Ford racing smog delete pulley kit. Worked great.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Air pump/smog pump question

Reply #16 –
I cut the pipe off at the back of the heads and turned the piece that bolted to the head around to plug mine. Then I cut the rest of the pipe off at the collector and welded it off. I removed all items that had to do with the pump. I dont know if it made any difference or not by I also bought the EGR delete plug and installed resistors at all the egr items.  Bought a shorter belt and ran with it. The only time you WILL need a smog pump delete pully is if you are going to run a procharger. The shorter rerouted belt gets in the way of some of the procharger stuff.
87 TC
HO Swap, T5 Swap, Mach Springs, CHE Upper and Lower control arms, Mach Chin spoiler, soon to be Procharged.

:evilgrin: Nitrous is like a hot chick with an STD you want to hit it but are scared of the consequences. :evilgrin:

Air pump/smog pump question

Reply #17 –
Remove the Pump, and run a shorter belt.

Cut the tubing going from the pump to the exhaust pipe and pinch it shut with a pair of pliers, then either weld it closed, or use some 2 part high-temp exhaust putty to close off the holes. You can cut the flat ends (that go over the holes in the back of the head) off the air pump tubes, and then flip them around backward and bolt them back down over the holes, to cover the holes in the back of the head. Either that or clean the carbon buildup outta the threads and use the correct size bolt to plug the holes. Leave the EGR position sensor plugged in and in place, and there is no resistor needed for it's delete. That's all you need to know for the entire job. I've did it several times now, since we are not a smog puppies state here.

Air pump/smog pump question

Reply #18 –
If i may! The smog pump does not take away a single HP to speak of. It really reduces the emissions that an automotive engine spews out. And i in my view i would not remove it. I have really never removed one and i am just talking about what i do. The smog pump as it is known is one of the most efficient and best emission device ever made as an add on device. THEY WORK EXTREMELY WELL DO NOT REDUCE HP and it is a win win thing. Just saying. I would leave it in and working.
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Air pump/smog pump question

Reply #19 –
That's if it is still working!!!

Air pump/smog pump question

Reply #20 –
They are pretty reliable in my view . Just an option thats all. And when they fail the car does not know the difference running wise. Not like a clogged cat ETC!! They are cheap to fix and they do not bother me one bit. Just my view on the subject.
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Air pump/smog pump question

Reply #21 –
I no longer have cats so I removed the smog pump and associated hardware. I run one of those eliminator pullies made by FRPP. If you are keeping the cats I would keep the smog pump as without it the cats will fail in short order.

That being said removing the smog pump and Thermactor system frees up quite a bit of room on the passenger side. It's very easy to get at the plug wires and plugs with the Thermactor system gone.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Air pump/smog pump question

Reply #22 –
If you are keeping the cats I would keep the smog pump as without it the cats will fail in short order.

Just a thought why would this happen. And why would a cat fail without an air pump????
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Air pump/smog pump question

Reply #23 –
My understanding is that the cats make their own oxygen through the chemical reaction of the catalyst and the unspent fuel in the exhaust stream. They will also store some oxygen but how much I am not sure. Once the amount of unspent fuel exceeds what the chemical reaction can convert and deplete the stored oxygen they no longer work as well. This is where the additional oxygen from the air pump comes in to keep the cats functioning at these levels. The cats typically fail from excessive heat (they comb melts and blocks flow) or the comb breaks up from the cat being hit from some kind of high center event. Anyhow, that is what I have been told and read.

My cats work fine without an O2 pump and the car passes emissions here with no problems.

Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Air pump/smog pump question

Reply #24 –
Well there are millions of cars built without air pumps that do not have bad cats. The TC does not have a pump just an example. I was just curious thats all.
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!
 

Air pump/smog pump question

Reply #25 –
Quote from: TOM Renzo;412184
Well there are millions of cars built without air pumps that do not have bad cats. The TC does not have a pump just an example. I was just curious thats all.

That was the main purpose in the air pumps. However, with our cars being fuel injected, they are not as nessesary. It was a must for carbs, even at that cats still killed over because of the inefficiency of carbs especially when the engines were cold.