midpipe and air pump
Hi,
I have a midpipe, do I need to do something special on the air pump ? |
with a midpipe you have no use for an airpump. The airpump basically pumps air into the catalytic converter for use in combustion of unburned fuel. Since you replace the cat with a midpipe no airpump needed.
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ok thanks
but do I leave it in place, I don t need to disconnect anything? If I remove it, I need to buy special pulley or a new belt?! Florent |
Thats up to you. You can leave it place but serves no purpose kinda like your appendix. If you remove it you will need new belts but thats not too expensive you can also do pulleys if you like but you dont have to.
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if u leave it just pull the wire harness out. thats what i did..i need to pass emmissions but if you dont just pull it out and get pulleys
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ok thanks!!
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You just need to get the smaller belt instead of the longer one going around the air pump pulley correct? Just the air pump belt and not the other belt right?
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If you remove the air pump, you should not just run a smaller belt, because there is much less contact area. You should go to larger pulleys when removing the air pump.
Also, the air pump has other purposes than supplying fresh air to the cat. It also supplements intake air at idle and low rpms. Quite a few people have had problems with running too rich at idle and low rpms after removing the air pump. Some don't. Your mileage may vary. Of course, if you have a stand-alone ecu, you can always make adjustments anyway. |
Originally posted by rynberg If you remove the air pump, you should not just run a smaller belt, because there is much less contact area. You should go to larger pulleys when removing the air pump. Also, the air pump has other purposes than supplying fresh air to the cat. It also supplements intake air at idle and low rpms. Quite a few people have had problems with running too rich at idle and low rpms after removing the air pump. Some don't. Your mileage may vary. Of course, if you have a stand-alone ecu, you can always make adjustments anyway. |
GZ91RX7 just removed his air pump in my garage last night, and he's noticed no problems at all.
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