"Al G" <agerhart2@charter.net> wrote in
news:P5Nmi.19$nl4.8@newsfe06.lga:

>
> "Tegger" <tegger@tegger.c0m> wrote in message
> news:Xns996D59B8F74FDtegger@207.14.116.130...
>> 02civic <whiskers0130@aol.com> wrote in news:1184381071.281891.192920
>> @n60g2000hse.googlegroups.com:
>>
>>> 2002 honda civic ex 5 speed....not a mod kinda guy but heard that a
>>> cold air intake will improve my mileage as well as give me a modest
>>> boost in hp. i bought a V2 cold air induction systems from AEM and
>>> and did a little research and now am a little worried that after me
>>> a buddy put it on i will be running the risk of the car hydro
>>> seizing. is this a real threat? PS AEM doesnt make a blow out valve
>>> for the V2 system. any advice or tips are greatly appreciated.....
>>> just dont tell me to avoid large puddles. thanx
>>>
>>
>>
>> You would need to put your car on a dyno in order to sense any power
>> increase above the psychosomatic.
>>
>> Your worry of hydrolock is a real one. Hydrolocks DO happen all the
>> time with CAI's. Hydrolock destroys engines.
>>
>>
>>
>
> Hydrolock? As in "rain ingested"? Flood water ingested?
>
> Help me out here, how does a cold air induction lead to a
> hydrolock?
>


Depends on where the air pickup is.

Ordinary rain is unlikely to enter a CAI at sufficient volume as to lock
the engine.

But when you drive through large puddles, an amazing amount of water can
splash at high pressure into the engine compartment. It is possible for
water get past a foam air filter and travel through the intake. If
sufficient water is ingested as to exceed combustion chamber volume at
full compression, the connecting rod will bend.

CAI makers sometimes supply "bypasses" to help keep water out if the
intake even if it gets through the filter, but how effective those are I
cannot say.

Honda goes to great lengths to make certain this never happens with the
factory setup, even if you drive through giant puddles.


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/