AEM Bypass Valve Broke......
#1
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AEM Bypass Valve Broke......
so i went and got a 3 to 3 " hose for it.....after putting the hose on i can hear the cai a little more but the big surprise was the sound of the engine when i floor it......it sounds so much deeper and throatier i love it.....someone pleez explain this to me....thanks everyone!
#3
Purchased: April 28, 2001
Re: AEM Bypass Valve Broke......
Originally posted by azzkiker23
so i went and got a 3 to 3 " hose for it.....after putting the hose on i can hear the cai a little more but the big surprise was the sound of the engine when i floor it......it sounds so much deeper and throatier i love it.....someone pleez explain this to me....thanks everyone!
so i went and got a 3 to 3 " hose for it.....after putting the hose on i can hear the cai a little more but the big surprise was the sound of the engine when i floor it......it sounds so much deeper and throatier i love it.....someone pleez explain this to me....thanks everyone!
#4
Suzuka Master
Re: Re: AEM Bypass Valve Broke......
Originally posted by edgalang
My guess would be just like how wind instruments behave...the longer the horn, the deeper it sounds. Perhaps your bypass valves were opening up prematurely during WOT and was letting air in...causing the tone to be higher pitched.
My guess would be just like how wind instruments behave...the longer the horn, the deeper it sounds. Perhaps your bypass valves were opening up prematurely during WOT and was letting air in...causing the tone to be higher pitched.
2. The bypass valve changes the pipe's internal diameter. This is going to change the “depth” of the resonance. The bypass valve acts like a resonator and sound absorber; it "damps" sound energy and a number of members have noticed this. The air bypass also reduces power due to turbulent airflow.
If you are going to use an air bypass, at least get a good one. I have the AEM sitting in a box and I'm pretty sure it will be sitting there for a long time.
An alternative bypass valve with more robust construction should be considered:
http://www.rtec-usa.com
![](http://www.rtec-usa.com/images/wepproductsinlinefilter.jpg)
#5
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Eric,
I was going to buy one of those, but was talked out of it by someone here.
They got one and found out it wasn’t a “bypass” valve at all because it’s always open.
Even though it has better filter media then the AEM one, it doesn’t have any kind of “flapper valves” to close the airway during normal operation.
If you know otherwise about this please share.
Shawn S
I was going to buy one of those, but was talked out of it by someone here.
They got one and found out it wasn’t a “bypass” valve at all because it’s always open.
Even though it has better filter media then the AEM one, it doesn’t have any kind of “flapper valves” to close the airway during normal operation.
If you know otherwise about this please share.
Shawn S
#6
Suzuka Master
Originally posted by Shawn S
Eric,
I was going to buy one of those, but was talked out of it by someone here.
They got one and found out it wasn’t a “bypass” valve at all because it’s always open.
Even though it has better filter media then the AEM one, it doesn’t have any kind of “flapper valves” to close the airway during normal operation.
If you know otherwise about this please share.
Shawn S
Eric,
I was going to buy one of those, but was talked out of it by someone here.
They got one and found out it wasn’t a “bypass” valve at all because it’s always open.
Even though it has better filter media then the AEM one, it doesn’t have any kind of “flapper valves” to close the airway during normal operation.
If you know otherwise about this please share.
Shawn S
Forget about the flaps… BTW, even when I blow into the valve, it still leaks (althought not as much) – that’s how wimpy those flappers are…
I will wager that there is more resistance from the filter media than from the flapper valves. If you don't believe me, try getting a "clean AEM bypass" valve and suck on it. It offers little or NO resistance to incoming air. IMO, those flapper valves open SO EASILY, they are just along for the ride and are basically “OPEN” 99.9% of the time anyway.
If you want the “flappers,” get the AEM. My bypass will continue to sit in the box. When I decide to put a bypass valve on, it wont be the AEM I already purchased. An upstream filter is all you're getting when you purchase the AEM or alternate (before someone starts to flame, get the valve out and try breathing through it).
The 3" silicone "bypass" hose in the summer, "brand-x" in the rainy season is the ticket for the AEM CAI as both are going to pull in lots of hot air during WOT operation.
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Eric,
I really don’t feel like sucking face with my bypass valve right now.![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
So you advise that getting one of those RTEC units to replace my AEM would be a good choice ???
Shawn S
I really don’t feel like sucking face with my bypass valve right now.
![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
So you advise that getting one of those RTEC units to replace my AEM would be a good choice ???
Shawn S
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#8
Suzuka Master
Originally posted by Shawn S
Eric,
I really don’t feel like sucking face with my bypass valve right now.![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
So you advise that getting one of those RTEC units to replace my AEM would be a good choice ???
Shawn S
Eric,
I really don’t feel like sucking face with my bypass valve right now.
![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
So you advise that getting one of those RTEC units to replace my AEM would be a good choice ???
Shawn S
I'd definitly buy a "chunk" of 3" hose to replace the "device" during the dry periods...
#9
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From the RTEC website:
So wouldn't this thing be drawing in HOT air during WOT conditions just like the AEM "flapper valves" ???
I'm still confused....
Shawn S
The IAF is designed to take in large volumes of air with a sudden thrust of the gas pedal and will safely level off and switch to your primary air filter as you coast on the highway. This translates to more power when you need it and less when you don’t.
I'm still confused....
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
Shawn S
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Originally posted by EricL
I'd definitly buy a "chunk" of 3" hose to replace the "device" during the dry periods...
I'd definitly buy a "chunk" of 3" hose to replace the "device" during the dry periods...
Shawn S
#11
Suzuka Master
Originally posted by Shawn S
From the RTEC website:
So wouldn't this thing be drawing in HOT air during WOT conditions just like the AEM "flapper valves" ???
I'm still confused....
Shawn S
From the RTEC website:
So wouldn't this thing be drawing in HOT air during WOT conditions just like the AEM "flapper valves" ???
I'm still confused....
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
Shawn S
The AEM is made of plastic and tends to come apart. I don't want my engine sucking in a bunch of broken plastic parts (and I know about the "fix" -- I'm not talking about that).
Shawn, you don't want to "suck face" with the AEM. When mine showed up, it was clean; I wiped it again anyway, and wanted to see how much air was needed to get the flappers to open.
If you did it yourself, you would laugh.
That's all I have to say.
Enjoy your choice...
BTW, a much better unit could be designed with a small slide tab to allow the valve to be opened and closed (bypass enabled, bypass disabled). However, I don’t know if anyone is going to bother making the device or one like it.
.
#13
Administrator Alumnus
you have to cut... There is a template that is included, just tape it onto the cai where you want the bypass to go and find your favorite cutting tool. File the CAI down to get rid of any rough edges and install.
Piece of cake...
Piece of cake...
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