how much hp loss???

wassup everyone... first off... HAPPY HOLIDAYS!...
now to the question... i just installed my AEM CAI in my 2000 honda civic EX 2dr... :D ive been reading that installing the bypass valve is worthless since it makes the car lose HP... :eek: how much HP am i losing if i install it?? i havent installed the bypass valve yet because im still deciding where the cutting is gonna happen... and AEM claims that HP loss are "minimal"... so whats the deal? thanks for your help...

put the thing on

the only reason that they say it would loose hp is because a bypass valve( a sponge ) let small amount of hot under hood air into the intake track in some cases Hp loss will be great do to a Dirty or highly restrictive Filter element but if you are using a AEM CAI then you wont notice it and unless you have A D15Z1 engine (VX) I doubt that you would notice any power increase with a cold air intake aswell

Are you planning on offroading? Or perhapse floating across the Pacific? Basically the only way you'll ever get hydro-lock is if your filter is completely submerged in water. I've had my filter completely SOAKED after washing my car, ran it like a mo-fo, and didn't hurt a thing. I think their a waste, even though you'll only lose a pony or two for the install.

Originally posted by Si2000 Vtec
Are you planning on offroading? Or perhapse floating across the Pacific? Basically the only way you'll ever get hydro-lock is if your filter is completely submerged in water. I've had my filter completely SOAKED after washing my car, ran it like a mo-fo, and didn't hurt a thing. I think their a waste, even though you'll only lose a pony or two for the install.

If you listen to this Si2000 guy, you might as well get ready for the consequences. The Air bypass valve is there for a reason. If you know how it works, get a straw, cut a small hole in the middle of the straw and start sucking up water, juice or whatever with it. With the hole in the middle, you wouldn't be able to get any drink after all. See where I'm going? Sometimes you get odd weather, so play safe aight?

Originally posted by AznRide


If you listen to this Si2000 guy, you might as well get ready for the consequences.

I dunno man. I've been running w/out the air bypass valve for about a year now with no problem and, yes, lots of rain.

read this and tell me the need for it
http://www.aempower.com/by_pass.htm

The only reason to get one is if your car is lowered so much that it no longer has wheel wells and the filter is constantly exposed to moisture. If you installed it yourself, you'd see the position that it is in and it is a very safe place.

When in doubt, shut the motor off and pull off the road. If its raining that hard, you shouldn't be driving.

The power loss will be about 3 or 4 hp.

I've had my AEM CAI for almost a year, and I've gone through some pretty deep water with it (up to my center caps). I idled through, and I didn't have a problem.

I don't have charts to back this up, but a respected poster on Honda-Tech claimed that he lost 6 hp on his GSR with the bypass valve in.

I dont have an air bypass valve.... I drove my car in various puddles and thru snow and slush 2 days ago. I then pulled over, looked under the hood, in the wheel well, Felt my filter, ti weas bone dry. I think its because the scrape guard is under my filter, so eater that splashes deflects off that.... I say dont buy one.... Id anything.... But a short ram as well, and whenit rains. keep it in yer trunk with some simple tools, and if its rainin or rainy... Then put on the short ram (come on, its only 10-15 mins to save yer engine, its its that bad) and thats if the conditions are really bad. I know my friends has a neon. His CAI design sucks because. when his filter goes, there is no scrape guard, or bumpper liner, or anything to block water from going onto his filter. And his car has been fine with driving in rain etc. he just trys to miss puddles, and he also drives at a low rpm so the water dont get sucked up

I'm surprised how you guys dont need the air bypass valve...'cause the guy that i know had a blown engine because he was sucking up water...he went in the honda dealership and got him another engine...spoiled brat. Oh well...

Originally posted by AznRide
he went in the honda dealership and got him another engine...spoiled brat. Oh well...

Seems a little excessive, don't you? He just had to have a new engine, huh? :rolleyes:

Originally posted by AznRide
I'm surprised how you guys dont need the air bypass valve...'cause the guy that i know had a blown engine because he was sucking up water...he went in the honda dealership and got him another engine...spoiled brat. Oh well...

he was probably running in high rpm range while in a deep puddle, which is just asking for it anyways. It's simple driving fact, that the lower the rpm, the less air is sucked in. So keep the rpm's low in the rain and there should be no problem at all.

Well, I dont blame him since he has that much money...and he didn't get the same engine...he got te b18c1, spent around 10 grand for the engine, turbo, intercooler, and all that shit...installed at the dealership too. I think he has the hook up there.

He's gotta have some good insider help there, cuz if honda is going to replace your engine, they will give you the same motor, not a GSR motor. He definitly has hookups on the inside of that service dept.

CivSiGuy is right, you'd have to be running at a high-rpm to even be able to suck water through your intake. All AEM's demonstrations with the bypass valve include completely submerging the filter in water, followed by revving the engine hard enough to begin to suck up water and open the bypass valve. The bypass valve was created for people that aren't careful. If you don't think your going to be careful, put it on.... otherwise, it's just one more useless thing to draw ponies away.

Originally posted by Si2000 Vtec
otherwise, it's just one more useless thing to draw ponies away.

and an extra $40 in your pocket :cool:

Agreed. The ONLY time a bypass valve is gonna save your engine is your filter is submerged in water.

The vacuum through the intake would suck it into the engine... but how often do you drive through 5-8" deep puddles?

I bought one a while back, and now I just wanna get rid of it, I never installed it anyways.....

Originally posted by Si2000 Vtec
Are you planning on offroading? Or perhapse floating across the Pacific? Basically the only way you'll ever get hydro-lock is if your filter is completely submerged in water. I've had my filter completely SOAKED after washing my car, ran it like a mo-fo, and didn't hurt a thing. I think their a waste, even though you'll only lose a pony or two for the install.

ok.....just to fyi you, their is a guy (on this forum) who I won't call out but he has hydrolocked his motor twice, he uses the bypass now :)

if you have have one install it, if not don't worry about it.