Does anyone know of a problems result from installing the bpv just after the air inlets and before the first bend. This would put the valve on the horizontal plane rather than the vertical. I have only seen pictures of it mounted in the vertical plane.

I shot the question off to AEM, but I haven't received a response. The forecasted rainy day has turned into partly sunny and I would love to get this thing installed. TIA.

 

Actually, I believe someone did this on the TL board and it was not highly recommended. I can't remember exactly why, but I know it wasn't a good thing. If AEM wanted you to install it that way, the directions would have you do it there rather then after the first bend.

 

if you're saying you want to install the BPV near the area where the air intake goes into the engine, I would highly not recommend it.

There is minimal hood clearance in that area and chances are you will ruin the BPV by rubbing it against the inside of the hood. I dont' think there is a reason why you can't mount it both horizontally and vertically though. It's design to open when there is enough pressure to open the foam valves.

I would mount it where AEM tells you to.

 

The AEM instructions indicate to mount the bypass valve as high as possible on the pipe and it can not be mounted directly to the TB. There are not specifics beyond that description. I have the 6 speed so the bypass mounted on the horizontal would make up for the missing VSA component, still allow the proper connection of the PCV and IABC hoses to the intake.

The hood clearance is soemthing I didn't consider. Thanks for pointing that out Chikai. That may put the kibosh on the whole idea.

 

I believe that if you installed it after the upper bend, you would disrupt the air flow? No?

 

Well this is just a thought; I think the aded benefit of adding the bypass before the second bend are 1) Gravity would prevent the water from continuing (there is a chance) farther past the bypass then it would if it was mounted higher. If you put it past the second bend in the intake I would figure the water would haveto go someplace and of course being that close to the TB, it could still get sucked into the engine if it is put in that location??

Just my .02$

 

Thanks for the input guys. I was certainly food for thought. I just read a post from a fellow 6 speeder and the pics show the valve mounted where I am thinking of going. I am contacting him as well to see if he as encountered any issues.

 

To dispel any conjecture about the AEM bypass valve not fitting when mounted on the horizontal run of a CAI, I have had it installed there for quite some time. Hood closes a-ok.

Re: gravity stopping the H2O.. I think the pull from the vacuum is quite a bit stronger than gravity's pull on water droplets so by chance it gets past the bypass valve it'll likely get in the engine regardless of where you put it. Of course we are all banking on the fact that the abrupt change in pressure caused by the CAI drinking water will cause the valve to close filter side and prevent any water manifold side. And I wouldn't recommend going on extensive drives when the AEM does its thing.

A reason I could think of as to why not to mount it on the horizontal section would be ambient air temperature in that region versus lower. But again, performance driving should be your last concern when the filter bypasses the cone filter because of water ingestion.

Oh, I guess another reason to mount it low would be to maintain Injen marketing integrity.

AEM directions say to mount the bypass filter on the horizontal plane close to the intake manifold. Do whatever aesthetically pleases you, though.



Has anyone dyno'd a car with CAI and CAI w/ bypass filter to see if there is any difference?

 

Thanks for the feed back. I feel better now about proceeding with my plan.

 

Ok I have a couple of things to add. I live in Fla. And if u know anything about Fla. u know that if u don't like the weather in Fla. wait 1/2 an hour. In other words it rains alot around here. But me I don't have a by-pass valve on my CAI. I've had my AEM CAI for about 1.5 years and I've had my by-pass filter for 1.3 years, but never have I installed the damm thing on my pipe. I've been in a good amount of situations where the roads were flooded like 18 inches and knew that there was no way that I was gonna make it. But I just use the judgement that I used to use with my old bucket, whenever I come to a LARGE puddle and don't know the depth I just let the first brave soul with the have the balls to venture into such an obstical. And I will never forget the time that my judgement saved my CLS from complete engine failure.

I watched a woman in a Cadi drive into a large puddle, that I decided to not venture 1st into, and pulled over to the side of the road to let her pass. I watched as she kept getting deeper and deeper, and the water looked as though it was going to go over the hood. The moment I saw the water go up to her bumper I started to turn away from that intersection, but decided to see really how deep was that puddle. I saw her get to the center og the puddle and the car stoped. I saw her brake lights flash and then the hazards cam on. 1st I laughed then I said that I was glad I never went into that.

But what I'm tring to say is that just watch out for puddles thats all. U know where the filter is and how low it is to the ground. Me personally I never go through anything deeper than 5 inches. And I've used my CAI for 1.5 years without a single engine rebuild or hickup .

The other thing that I wanted to discuss is why would u buy a CAI and still run ur crank case return lines back to the intake. U'r just defeating the purpose of a CAI. The moment I got my CAI I replaced my return lines with crank case filters from K&N. I also stoped up the return lines nipples on my CAI with rubber stoppers.


Juker008