Can you delete the ACV and keep the air pump?
#1
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Can you delete the ACV and keep the air pump?
I'm in the process of redoing my vac hoses, replacing the silicone with viton, and checking all the solenoids and check valves. While I'm at it, I've eliminated the AWS, double throttles, throttle body coolant lines, and the EGR valve, and have blocked them off with plates from 2751 Engineering.
I've just removed the Air Contol Valve to access a few lines. I know that the valve diverts air to either the main cat, or vents it to the air box (right?). Could you not just eliminate the ACV altogether, and plumb the air pump directly into the main cat? Air pumped into the cat must be a good thing for emmissions, no? I need to keep the air pump/cat to meet emmissions testing here in NY.
What do you think?
I've just removed the Air Contol Valve to access a few lines. I know that the valve diverts air to either the main cat, or vents it to the air box (right?). Could you not just eliminate the ACV altogether, and plumb the air pump directly into the main cat? Air pumped into the cat must be a good thing for emmissions, no? I need to keep the air pump/cat to meet emmissions testing here in NY.
What do you think?
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So, I assume you've blocked-off the ACV, and removed the 2 pipes that go to the LIM and the ACV? How did you plumb to the air pump?
BTW, assuming that is your white FD, which wheels are fitted? They look great!
BTW, assuming that is your white FD, which wheels are fitted? They look great!
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Is that check valve located in the hard line from the LIM down to the cat?
Also, on the pump, I assume that one pipe is intake, and the other outlet- any idea which is which?
Also, on the pump, I assume that one pipe is intake, and the other outlet- any idea which is which?
#7
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Originally Posted by gcthree
I've just removed the Air Contol Valve to access a few lines. I know that the valve diverts air to either the main cat, or vents it to the air box (right?).
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#8
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Originally Posted by gcthree
So, I assume you've blocked-off the ACV, and removed the 2 pipes that go to the LIM and the ACV? How did you plumb to the air pump?
BTW, assuming that is your white FD, which wheels are fitted? They look great!
BTW, assuming that is your white FD, which wheels are fitted? They look great!
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#16
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I would imagine it would exhibit the same idle issues on stock based ECU's (i.e. the need to increase the idle to around 1100 rpms).
#17
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I don't see why it should be a problem... essentially you're rigging the factory airpump to a cat just like you would an auxiliary electric airpump to the cat when you've got a single turbo.
Now, it might have idle issues w/ a stock ECU, but I don't run with the O2 on my PFC anyway.
Now, it might have idle issues w/ a stock ECU, but I don't run with the O2 on my PFC anyway.
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I'm sorry, I should have clarified that my airpump has already been removed and the cat with a midpipe. I have the manual boost controller set up as outlined by damian. I just had to remove the engine/transmission to fix a broken 5th gear sync and thought i'd go ahead and get rid of all emissions and replace all the vacuum lines with silicone ones.
Thanks for the input.
Thanks for the input.
#22
Rotor or no motor
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since the stock fuel rail can not take more than 850cc injectors i bought new fuel rail.(secondary and primary) with 850cc injectors for primary and 1680cc for secondary. If the ACV is not blocked. what happens?