air pump removal
12-18-09, 09:46 AM
#26
Yes and no. It depends if you have a turbo or not. The S4 turbos only have 4 ports so it does not effect anything but the catalytic converter. On the non-turbos (NA) it would affect the 5th and 6th ports plus the catalytic converter if the pump was removed.
slight bit confused
12-18-09, 10:20 AM
#27
So...
The air pump feeds air to the cat via the ACV on S4 and S5 NA and TII.
6PI and VDI system applications:
S4, S5 Turbo: Not applicable
S4: 6PI, via backpressure from exhaust
S5: 6PI and VDI, pressure from air pump.
02-13-10, 08:36 PM
#28
jungle
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Most of everyone is talking about NAs, leaving the air pump for the aux ports.
I just want a straight answer. I have a s5t2 motor I'm prepping to put into my s4na. Can I remove all the emissions with out problems? And if not what are the problems and solutions?
I just want a straight answer. I have a s5t2 motor I'm prepping to put into my s4na. Can I remove all the emissions with out problems? And if not what are the problems and solutions?
02-20-10, 08:27 PM
#33
Rotary Enthusiast
I was tole yes in a similar thread that i have. I was told you can remove the acv and just block it off. I made my own Block off plates for about 10 bux and a few hours of time
02-20-10, 08:44 PM
#34
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What did you remove? I wanna get rid of all the emissions. I'm in the process of learning about the emissions from a manual i just got.
02-20-10, 09:27 PM
#35
Rotary Enthusiast
Heres my thread. I plan on doing a How to on it. I know there are tons but when I was searching i didnt find one that was just for basic emmision removal. and step by step (at least that I found).
02-21-10, 11:13 AM
#36
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https://www.rx7club.com/showthread.php?t=888051
Heres my thread. I plan on doing a How to on it. I know there are tons but when I was searching i didnt find one that was just for basic emmision removal. and step by step (at least that I found).
Heres my thread. I plan on doing a How to on it. I know there are tons but when I was searching i didnt find one that was just for basic emmision removal. and step by step (at least that I found).
02-22-10, 09:40 PM
#37
Rotary Enthusiast
01-11-11, 09:12 AM
#38
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Sorry to bump up this thread but I need some assurance.
On my car I'm doing a custom exhaust, RB header w/ ypipe to 2 mufflers, no cats. Even now my actuator valves are stuck but I plan on wiring them electronically following the rotary ressurection method.
From my understand the air pump helps with emissions but I have no cats so could I remove it?
On my car I'm doing a custom exhaust, RB header w/ ypipe to 2 mufflers, no cats. Even now my actuator valves are stuck but I plan on wiring them electronically following the rotary ressurection method.
From my understand the air pump helps with emissions but I have no cats so could I remove it?
01-11-11, 11:11 AM
#39
If you intend to use an electric air pump to supply the actuators, you can remove the belt-driven air pump. You'll also want to get a double sheave pulley for the alternator or a "yoohoo belt" to prevent slipping.
Otherwise, you could leave the belt-drive air pump and do this: https://www.rx7club.com/2nd-generation-specific-1986-1992-17/activating-aux-ports-vdi-rpm-switches-907824/.
Otherwise, you could leave the belt-drive air pump and do this: https://www.rx7club.com/2nd-generation-specific-1986-1992-17/activating-aux-ports-vdi-rpm-switches-907824/.
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