Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

bypass valves.Just a myth. do they really work.LOOK!

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Old Apr 26, 2006 | 11:15 PM
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From: bkny
Exclamation bypass valves.Just a myth. do they really work.LOOK!

hey guys

i have an injen cai intake i want to prevent hydrolocking

i believe that the aem bypass valve is the only bypass valve on the market that will fit the injen cai


do bypass valves really worrk?

if my filter hits a puddle will the bypass valve save my engine?


does a bypass valve cause you to loose power?


what other brand bypasss vlaves will fit my injen cai?
 
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Old Apr 26, 2006 | 11:25 PM
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Just take off the second tube and make ur intake into a short ram... I have the injen intake and in the winter I bought a weapon-r Filter that fit my MAF sensor tube.... It works and looks great... Summer is rollin around so I'm gonna put back the second tube on my intake...
 
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Old Apr 26, 2006 | 11:39 PM
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From: bkny
wait can i use my original injen filter or will it not fit


? does it wistle when its short ram?
 
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Old Apr 27, 2006 | 12:26 AM
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yea mine works



ive never heard of the bypass not working
 
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Old Apr 27, 2006 | 01:09 AM
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I had the bypass valve on my nismo, and took it off cuz you do lose power, if any. But it works if your filter gets pretty much fully stuck in water. If it rains & floods alot keep it for peace of mind. If not just take it off. Just my opinion. But its the same either way, good luck.
 
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Old Apr 27, 2006 | 08:50 AM
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Yes, bypass valves work. The only way a motor can suck in water is if the filter becomes fully submerged. If any portion of the filter is exposed air, the motor doesn't possess enough suction to lift a heavy column of water. If the filter becomes submerged and a bypass valve is installed, the change in vacuum within the intake pipe will open flaps on the bypass. It's simply a case of the path of least resistance.

IMO, intakes a worthless on these cars and do more harm than good. A bypass valve will disrupt air flow in the intake pipe because the valves are not air tight.
 
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Old Apr 27, 2006 | 10:29 AM
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The Bypass valve is a good invention but in the past unless they have fixed a problem there were known to fall apart and cause pieces of it to be sucked into the engine. I am not sure if this was fixed or not but I would look into it.

Several intakes make power (depending what kind of intake you get) on this car and it has been proven many times. If you want to keep a intake, look into something that won't suck up water like the Stillen or JWT.
 
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Old Apr 27, 2006 | 01:08 PM
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Originally Posted by G35_TX
The Bypass valve is a good invention but in the past unless they have fixed a problem there were known to fall apart and cause pieces of it to be sucked into the engine. I am not sure if this was fixed or not but I would look into it.
The MAF has a screen which should stop any debris from entering the engine. If you mount the valve upstream of the MAF, I'd be surprised if the car would even run because unmonitore air would be introduced upstream of the MAF.
 
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Old Apr 27, 2006 | 01:28 PM
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Originally Posted by DaveB
The MAF has a screen which should stop any debris from entering the engine. If you mount the valve upstream of the MAF, I'd be surprised if the car would even run because unmonitore air would be introduced upstream of the MAF.
Wow Dave, your wrong again.

My 04 G35 did not have a screen, neither does my 05. Maybe the Type1 engine does but not 2004 and above.
 
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Old Apr 28, 2006 | 02:05 AM
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Originally Posted by norcal_chan96
Just take off the second tube and make ur intake into a short ram... I have the injen intake and in the winter I bought a weapon-r Filter that fit my MAF sensor tube.... It works and looks great... Summer is rollin around so I'm gonna put back the second tube on my intake...
+1 !!!!! thats exactly what i did to my Nismo CAI except that i use the same filter.

ebuy929, Don`t worry you got 2 in 1 a short ram and a CAI in the same time i picked Nismo CAI because of the bypass valve and after installing it i just found out that its so so useless, kills the nice sound of the CAI :/ and it seems to be loosen some ponies, if i have had the chance again i`ll definitely get Injen MR
 
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Old Apr 28, 2006 | 08:14 AM
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From: bkny
do i need a bypass valve or a heat shield if i do short ram
 
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Old Apr 28, 2006 | 08:53 AM
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Originally Posted by NETSHARK
+1 !!!!! thats exactly what i did to my Nismo CAI except that i use the same filter.

ebuy929, Don`t worry you got 2 in 1 a short ram and a CAI in the same time i picked Nismo CAI because of the bypass valve and after installing it i just found out that its so so useless, kills the nice sound of the CAI :/ and it seems to be loosen some ponies, if i have had the chance again i`ll definitely get Injen MR
The Long tube CAIs loose power on this car. I suggest not get a Injen or you will in the same boat.
 
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Old Apr 28, 2006 | 09:32 AM
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From: bkny
i already got an injen

so the question is

shrotram

or cai setup


with or without bypasss valve?
 
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Old Apr 28, 2006 | 10:34 AM
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Originally Posted by G35_TX
Wow Dave, your wrong again.

My 04 G35 did not have a screen, neither does my 05. Maybe the Type1 engine does but not 2004 and above.
I'm just going by the FSM which clearly shows a screen.

http://www.my350z.com/forum/attachme...0&d=1044909240

My late first series 03 is a Type II, not Type I.
 
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Old Apr 28, 2006 | 10:44 AM
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Originally Posted by DaveB
I'm just going by the FSM which clearly shows a screen.

http://www.my350z.com/forum/attachme...0&d=1044909240

My late first series 03 is a Type II, not Type I.
Like I said, its possible the 03s had it. But I know the 04s and 05s do not. Don't assume they all have it.
 
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