can anyone here delete my cats for me?

[JoeliusZ28]

If you dont have cats, you dont need AIR.

take off the pump and the fittings off the headers and save yourself some pain, make it look cleaner too!

no, im going to leave all that... i dont like butchering stuff because my car is in primo original shape. its not hurting anything there, and besides itll look like i have my emissions at a glance

[MattODoom]

no, im going to leave all that... i dont like butchering stuff because my car is in primo original shape. its not hurting anything there, and besides itll look like i have my emissions at a glance

Thats true.

All it does it stuff air into your exhaust so the catalyst can work properly. Theoreticly this creates drag on the motor but I doubt youd see a difference HP wise.

[JoeliusZ28]

Thats true.

All it does it stuff air into your exhaust so the catalyst can work properly. Theoreticly this creates drag on the motor but I doubt youd see a difference HP wise.

as far as i know its only functional on a cold start during high idle. im pretty sure its the hissing sound you hear during that period of time.

[MattODoom]

as far as i know its only functional on a cold start during high idle. im pretty sure its the hissing sound you hear during that period of time.

On a thirdgen there is a diverter box. while the motor is cold air is pumped in the manifolds to help combustion there and warm the O2 up, once the car warms air is diverted down a tube and into the catalytic converter.

[JoeliusZ28]

On a thirdgen there is a diverter box. while the motor is cold air is pumped in the manifolds to help combustion there and warm the O2 up, once the car warms air is diverted down a tube and into the catalytic converter.

um what do you mean by that?? pumping air into the manifolds is how the air gets to the cats right?

[Insomnya3AM]

um what do you mean by that?? pumping air into the manifolds is how the air gets to the cats right?

THIRDGENS have a diverter box. The better F-bodies only have the upstream air inlet.

[MattODoom]

um what do you mean by that?? pumping air into the manifolds is how the air gets to the cats right?

Okay... ill try to explain it a little better. This is for thirdgen though.

Off of the air pump there is a box with a valve that diverts the air one of 3 ways, manifolds, cat, and atmosphere(dumps it).

When the car is warming up the air is pumped into the manifolds right by the exhaust port. this causes combustion in the manifold which in turn heats it and allows the oxygen sensor to come up to temp faster.

Once the car hits closed loop (o2 is warm) the little valve diverts the pumped air down a tube which goes into the catalytic converter. When it comes out in the cat it helps the catalyst lower emissions.

Under certain other circumstances the air is diverted to atmosphere (things like WOT I think...)

THIRDGENS have a diverter box.

Aparently you guys dont have the box, just the pump and manifold inlets. Prob worth keeping just for the O2 warming effect.

The better F-bodies only have the upstream air inlet

My car has neither. So does that make it the best FBody?

[MrMojoRisin681]

THIRDGENS have a diverter box. The better F-bodies only have the upstream air inlet.

And the best F-Bodies ('67-'74) don't have any of that stuff. Just muscle.

[Insomnya3AM]

And the best F-Bodies ('67-'74) don't have any of that stuff. Just muscle.

1st and 2nd gen grouped together? WTF? Sick and wrong.

This is what my list looks like>>

1st 98-02
2nd 67-69
3rd 70-73
4th 93-97
5th 82-92
6th 74-81

I'll probably start some lame thread about this. Ha.

[MrMojoRisin681]

1st and 2nd gen grouped together? WTF? Sick and wrong.

This is what my list looks like>>

1st 98-02
2nd 67-69
3rd 70-73
4th 93-97
5th 82-92
6th 74-81

I'll probably start some lame thread about this. Ha.

lol you have them right next to eachother.