Air Pump

[Kirk]

Anyone have a reason why I should leave the air pump on my 73?

 

[Swims350]

you have to pass emissions? if not ditch it 73 should be exempt or not even have one anyways.

 

[85k10383]

73 is awful early to even have one. If you ditch it, take care to remove EVERYTHING associated with the system, believe me you don't want to be wondering what all those extra lines are for later

 

[Swims350]

Yep not to mention how much better it looks without it all. I removed all that crap on everything my 85 mcss 84 c10 86 k10 and removed the smog pump from my 88 but left the egr and other junk.

 

[85k10383]

And the fifteen or so pounds you lose will gain you 1/57 per gallon better economy LOL

 

[Swims350]

No doubt!!!!!!!! maybe free up a hp or two not having the smog pump running off a belt, so one thing thing dragging down the motor.

 

[bucket]

That's my very first mod to anything I buy with a smog pump. My Burb made it about 15 minutes before I cut the smog pump belt off.

 

[Manbearpig]

lol my air injection system is fake

 

[crazy4offroad]

I've heard of people gutting the fins off the pump and making it "look" functional just to pass tough smog laws. From what I understand a well-tuned setup that doesn't have all that garb on it is just as efficient as one that does.

 

[Swims350]

it'd be nice if you can turn the thing into a pump for vac. brakes if you have a large cam or something and need more vacuum.

 

[crazy4offroad]

I think it does higher volume instead of pressure, not sure how useful it would be for anything other than inflating air matresses.

 

[SuperMidget]

when i put headers on my 88 i removed all the lines and busted the fins out of my pump, belt was brand new so i didn't want to waste the money to buy another one to out right delete the pump, take the fins out it becomes a big ugly idler pulley