Forced Induction Custom FI Setup Questions

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Old 11-16-2003, 03:18 PM
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if you use a bypass valve on your charge pipes you will never enter boost..

common sense (but correct me if im wrong)
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Old 11-16-2003, 03:50 PM
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(correcting you because you're wrong) :P

It will allow pressure inside the pipes. It only opens if the intake is plugged. I have no idea how to explain this, but it will work. The pressure(boost) will keep the flaps closed on the bypass valve.
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Old 11-16-2003, 04:15 PM
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corrected, but wouldnt you leak boost?
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Old 11-16-2003, 05:53 PM
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Default Re:Simple Question

Originally Posted by Dr.Boost
(correcting you because you're wrong) :P

It will allow pressure inside the pipes. It only opens if the intake is plugged. I have no idea how to explain this, but it will work. The pressure(boost) will keep the flaps closed on the bypass valve.
To my knowledge, the bypass only flows one way. Air can get in, but not out - but I'm not t-totally sure on this point. Call AEM if you really want to do this, altho I think it is pointless.
No, it doesn't help with splashes. It only opens if the filter is restricted (dunked) enough to create a vacuum which will open the valve. Splashes aren't what hurt your engine. Moderate rain shouldn't even pose a problem really (like if your hood was missing). You need enough water to completely cover the end of the pipe before the engine creates enuff vacuum to pull it thru to the engine, otherwise it is just going to run back out or puddle while the air rushes past it IMO.
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Old 11-16-2003, 06:37 PM
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To my knowledge, the bypass only flows one way. Air can get in, but not out - but I'm not t-totally sure on this point. Call AEM if you really want to do this, altho I think it is pointless.
Agreed. This is why it wouldn't leak boost. I'm not sure how much boost one of those things could hold so that might be the downfall.
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Old 11-18-2003, 02:11 PM
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I am now dumber for reading this... thanks.
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Old 11-18-2003, 03:24 PM
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lol...

I have never seen a cai bypass valve with a "flapper", they are usually (at least the ones I have seen) basically a connector that can breath air (made of foam). If you submerge the end of your CAI in water, the vacuum will suck air through the bypass rather than sucking water into the engine. The bypass valves I have seen would definitely blow out if they saw boost.

this is pretty pointless though, there is no need to have a bypass on a turbo system. Just don't stick the filter 3" from the ground.
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Old 11-18-2003, 03:35 PM
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Originally Posted by hooohaa2
lol...

I have never seen a cai bypass valve with a "flapper", they are usually (at least the ones I have seen) basically a connector that can breath air (made of foam). If you submerge the end of your CAI in water, the vacuum will suck air through the bypass rather than sucking water into the engine. The bypass valves I have seen would definitely blow out if they saw boost.

thats what i thought also.
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