Is this pos actually effective?

 

You don't read SCC, do you?

 

Not if I can help it, why?

 

If you ever drive through deep water, a bypass valve is a must.

 

Just be carefully with the older ones the red-orangish lining underneath the foam part will get sucked into the trottle body causing it to stay open and making the motor keep reving.

 

Thanks for the info.

 

ok, so if you don't make it a habit of driving through deep water and it never snows more than an inch where you live, is there any reason to get it? i saw that article too but but damn, that'd be hella DEEP water to get all the way to the filter wouldn't it?


[Modified by YodiBrodi, 6:25 AM 6/18/2002]


[Modified by YodiBrodi, 6:25 AM 6/18/2002]

 

you have to completely submerge the filter.. then it starts to fill up.. if your dropped and its a CAI, it could be filled easily with a deep puddle when its pouring

 

In this case, it is better safe than sorry.

 

But you don't even need this much to kill the car. I drove through a 1 1/2" deep puddle at 10 mph and blew up my engine last year. Of course my fender lining was torn off, it's not this bad if it's intact.

 

i like to share my aem experience...

on a friday night about a month ago, i was driving back from my school in long island back home to brooklyn. it had been more than two months draught here in nyc and everyday you'd see tv or hear on radio warnings about using water wisely.. anyway that night the feeling of a thunderstorm was in the air.. air was moist, sky was dark by 6PM.. i was hoping to get home before it really pours because i jsut gotten my aem intake installed less than a week ago, and didn't plan to get a by-pass valve. anywayz, 20 minutes after i left my school residence it began to pour like crazy.. raindrops were size of golfballs, no joke.. visibility was next to zero. on northern state parkway where cars normally average 70 mph, drivers were only doing 25-30. the only visuals we can depend on to steer are the dotted white lines when they're about 2-3 feet in front of the car. in no time the whole high way was flooded (i should've took the LIE). at this time i was literally shitting in my pants. every 5-10 seconds i would drive through a big puddle and cause the water to fly off both sides. every minute or so cars from the opposite direction would pour enough water on my windshield and cause complete blindness for a good 2-3 seconds. i was mostly worried about my intake because i had NEVER, EVER driven in such crazy rain before. oh yeah, the highway i was on, there are no shoulders. just an open grassfield which i could've easily sunk in if i pulled over. being the courageous idiot i was i just kept on driving in hope that things can't possibly get worse... then there it was. about 5 car length in front of me was another car, with blinkers on, completely stalled, in a flooded section. water was up to the rear bumper, you can only see 2/3s of the car. it was in the right lane and only left lane was open. all you can see top of the water for a good 10-15 feet stretch, no road. it was do or die for me. if i stop in front of the puddle, then i would create a road block for all the cars following me. if i go, i'm good as dead since my engine would hydrolock and i'm going to stall anyway. it was a split second decision for me, and since i'm a slow thinker *wooosh* my car went into the flood before i can press the break... i was like oh shiet... felt the speed reduced, looked at rpm, still above 500, good... downshifted back to one, slowly gassed hoping the filter won't suck up as much water... it was a dreadful 10 seconds before i completely got out of the puddle. rpm was still stable. shifted back up to 2nd, kept driving and got off the very next exit.. somewhere in the boonies.

sorry if this was long.. it's a slow day at work.

 

So you survived?
I mean your motor did?
I had a nightmare about a puddle and hydrolock and bought a bypass valve the next day. Even if it cost a few HP (which may or may not be the case) and still may not even save you from hydrolock, it's just cheap, necessary insurance IMHO.

 

yeah i survived that day.. made an open dedication to my car and the aem on my website that night... alot of gay stuff. anyway it was a miracle and i still have no idea how my kord didn't die. it was definite the filter had hit the water... i would be sure it was submerged judging by my sense.. but that would be impossible for my car not to die right, since there would be no air in the engine for a good while... i don't know.. just happy i made it home alive.

the by pass valve is expensive! 45 bucks, plus you have to custom cut your pipe... and i do think it causes you to lose HP... kinda like drinking water through a cracked straw isn't it?

 

Just found out my intake arm has a hole in it today. I guess thats my custom bypass valve.

 

Ya guys like dyno plots ? more to feed ya with..

Dyno plots of the AEM with and w/o bypass valve..



Blue is without, red is with...

 

Looks like the bypass valve actually gained you some top end power at the expense of some midrange torque?

 

Were these plots taken different days?

 

yes, it even sais so look closely, almost two months apart

 

I'm satisfied. I got it last night, it'll go on this weekend when I tear down the front end to replace my rack, rotors, and master cylinder.

 

the bypass valve is probably a must for anyone...regardless of where you live...floods can happen anywhere...and a simple $40 now can save you a locked motor...i'm getting one soon cuz the rain is starting to get worse and worse here...

 

So many factors can occur in that period of time to make a significant different in the powerband, temperature, humidity, even fuel. Did you change the spark plugs at all in that period of time or change the oil? Even minor things like that can change the shape of the power curve.

 

im not gonna get it

 

nothing was changed...

i wouldn't worry about the 1-2hp loss in the high end, that could be a result of the temp/humidty... SAE doesn't correct for that very well.

What I would look at is the big bump around 4000 rpm w/o the bypass valve, but the loss of torque around that bump...

 

Hey I used to go to Stony a while back and yes when it rains on the Northern all **** goes to hell.. Anyways just passing thru and glad to hear your car survived..