Fw: Re: Cold Air Intake Question

["Jeff Lloyd" <jeff@xxxxxxxxxxxxxxxxxx>]

FYI we do lots fo cold air intakes for the various imports and domestics we 
get in here and I have been impressed, there is of course a increase in 
intake noise, however almost all the higher end units make some power. 
(from as low as 1-2 up to 21hp in one acura) 

I'm sure BMW designs their intakes better then most of these economy cars 
but the fact of the matter is that there IS power to be found by freeing up 
the breathing on these modern fuel injected vehicles.

Thanks
Jeff
jeff@domain.elided


- ------------- Original message follows -------------

Hi Dennis,

All I can offer is the theory.  Cold air is denser than hot air.  So
therefore there is more oxygen packed into each cubic foot of air if it is
colder.  So in essence the colder the air that goes into your motor, the
more fuel can be packed into it, when mixed, and you get better combustion.
Sort of like an intercooler for a turbo, which definately shows a marked
improvement in horsepower gains.  A cold air intake is on a much smaller
scale.  I know that I did notice an increase on my 94 Camaro Z, when I owned
it, and bought a Lingenfelter cold air system for it.  However I never
dynoed the car, and haven;t owned it in some 6 years, so I couldnt tell you
exact numbers..

Cheers
Ron Jordan
85 535i
73 911s 2.7


- ----- Original Message -----
From: <DJLogan33@domain.elided>
To: <bmw@domain.elided>
Sent: Sunday, October 27, 2002 7:15 PM
Subject: Cold Air Intake Question


> BMW OWNERS:
>
> I have seen a lot of information about COLD AIR INTAKE systems.
> Most of the performance enhancements claim "smoother throttle response"
and
> "slight power jump in the higher RPMs", but no hard facts.
>
> I have not seen any technical details on increased HP or torque at
different
> RPM ranges.
> I would like to know the following:
> - Do the systems just provide COLD air to the intake system versus HOT
air?
> - Do they also increase the amount of air to the intake system?
> - Are there graphs available to show the increased HP and torque at
different
> RPMs?
>
> I own a M Coupe that I have installed the Jim Conforti SHARK INJECTOR
> software.
> The SHARK INJECTOR advertisements did provide graphs showing increased HP
and
> torque.
> I noticed a slight increase in HP and torque, after installing the SHARK
> INJECTOR,
> but I really question the increased HP and torque claims.
>
> Jim Conforti, K&N as well as others market a COLD AIR INTAKE system for
the M
> Coupe, but I am reluctant
> to purchase one without more hard facts.
>
> If anyone has any hard facts on COLD AIR INTAKE system, please email me.
>
> Thanks,
>
> Dennis Logan
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