1989 f150 302 swap, air pump removal

[89classic]

has any one removed the air pump from the 302; wil it mess up the o2 sensors. Also , the pulley belt will need to b edifferent, but i was thinking of removing the Ac pump anyways.

some previous owner cut the lead to the first o2 sensor, was that a work around for a common problem?

any thoughts appreciated thanks

 

[F150]

Removing the air pump will net 0 HP, and decrease fuel mileage. Unless froze up, i would leave it alone.

 

[flareside_thunder]

x2...Also, hacking the wiring to the O2 sensor is not a way to get around another issue that I'm aware of. Better to hook it back up.

 

[89classic]

thank you for the info

 

[89PSD]

if you want to remove the smog pump and still re use the same belt, you can get a smog elimator bracket for a 86-93 5.0L mustang. there the excact same bracket for ford trucks and mustangs.

Im not to sure how you would loose milage from doing that. You emmisions may get worse- but not milage. IRCC it injects air after the o2, and before the cat.

If you remove your smog pump, you also have to pinch or weld the tube shut that connects it to your exhaust, and also pinch or weld the tube that connects both cylinder heads together... its at the back of the head. or you will have a exhaust leak

 

[Truckin4life]

Removing the air pump will net 0 HP, and decrease fuel mileage. Unless froze up, i would leave it alone.

Im curious how it will net 0 power?

I can see how mileage may go down, with a complete factory setup...
But if the belt is turning one less acccesory then thats more power its putting to the ground. Why is it you dont dyno a car with the ac running? same reason.

 

[SuperGizzman]

Air pump

My air pump froze up so I just took the pulley off and replace the belt with a smaller one that fit without it personally I think it has more power without it

 

[rockyrunner99]

I agree, theoretically you should have more power with out it. I have no experience taking one off though. I would think a large part of the increase power would come from not pumping unnecessary air into the exhaust. Reducing back pressure similarly to putting a larger exhaust on.