RK
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posted on 24/11/09 at 01:55 PM |
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Installing Blow Off Valve CA18DET
Forgetting my other car problems for a while, I turn my attention to installing a Blow Off Valve to the large line coming from my intercooler. So far
so good. Now, there is a small tube coming out of the end of the BOV, that supposedly goes to the vacuum line going into the intake plenum. I have
tubing and T connectors.
I also have a little one way valve that was included in this setup. I have no idea how to proceed, and as is often the case, no instructions were
included in this cheap Fleabay buy. Any ideas?
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BenB
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posted on 24/11/09 at 02:25 PM |
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Have you identified which end of the BOV goes to which tube? They only work one way of course!!
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StrikerChris
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posted on 24/11/09 at 02:32 PM |
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as far as i can remember there's no need for a 1 way valve in the system.the vacume in the plenum as the butterfly closes just opens the
diaphram in the dump valve releasin the boost to atmosphere,or back to your intake depending on your set up.incidently i dont run one atall yet.it
just caused me idling problems and emission problems in the rush for the sva so blocked it off for a quick fix
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BenB
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posted on 24/11/09 at 06:00 PM |
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I've never heard of a one-way valve in the BOV system either and I'm not planning on using one on my blower install.... (if I ever get
a wiggle on and get it finished)...
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RK
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posted on 25/11/09 at 03:11 AM |
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For the small vent, I teed off to one of the vacuum hoses on the back of the plenum, and held the BOV steady (attached to the intercooler on a coolant
hose) with zip ties.
I'll let you know if it makes a cool noise or not.
[Edited on 25/11/09 by RK]
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Frosty
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posted on 25/11/09 at 10:50 AM |
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From memory the blow off valve kits go in a silly place on the 200SX engines.
The best place to install is as near to the intake plenum as possible, but this may not be practical or possible.
As for the vacuum line, this just needs to be connected to a vacuum source that is behind the throttle butterfly.
By "after" I mean a vacuum line that would contain air that has already been through the throttle plate.
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RK
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posted on 26/11/09 at 01:44 AM |
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the thing doesn't do anything. Too bad, really, because I was quite proud of myself putting that on.
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