Jim Yanik wrote:
> jim beam <nospam@example.net> wrote in
> news:lrWdnX4uvr91awrZnZ2dnUVZ_sudnZ2d@speakeasy.ne t:
>
>
>>TE Chea wrote:
>><snip>
>>
>>you need to stop drinking the "cold air intake" coolaid there guy. it
>>may be fine for you kidz in the nice warm county of l.a. to run about
>>with disabled de-icing equipment, but anywhere else in the country, it
>>becomes a bit of an issue when your car sputters to a halt because of
>>ice buildup.
>>
>>as an aside, i had my air intake cover off the other day, and forgot to
>>screw it on tightly. the screws worked their way out after a few
>>hundred miles, and the air intake cover popped off. it was noticeable
>>by two things:
>>
>>1. increased noise. ok, ho hum.
>>
>>2. big /decrease/ in power. the "ultimate" cold air intake, i.e. no
>>intake at all produces /less/ power???!!! yep, you better believe it.
>
>
> Uh,the air intake is still from the hot under-hood air.All you did was
> shorten the intake runner length,which reduces torque.
> If you don't believe cold air enables more power,then explain why racers
> put scoops and ducts on their race cars.It wouldn't make sense,adding more
> drag to get cold air that doesn't produce more power.

uh, i understand how it works thanks. what i'm saying is that it's not
so simple as most of the "cai" crowd believes. if the intake tubing is
tuned correctly, i.e. resonances are set specifically, it enhances the
air charge entering the engine. done right, it flattens/broadens
power/torque curves. otherwise you're stuck with huge flat spots in the
engine's performance, exactly what i was experiencing.

"tuning" the air charge has /way/ more effect than the minor density
differences made by a few degrees of ambient air temperature.

>
>>now, it's possible that some aftermarket manufacturers of air intakes
>>know what they're doing and understand airflow resonance dynamics and
>>the effect it has on engine air induction, but somehow i doubt most of
>>them do. but hey, most of this stuff is not for performance, it's just
>>for show...
>>
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