Ooff...sorry Joe, Jon's got ya beat...by a little bit. ;)
Sorry about the previous post, just havin' a bad day. All better now...so
where were we?
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
Subject: Re: DML: Cold Vs. Warm Air
>
>
> On Mon, 8 Nov 1999, Nate Johnson wrote:
>
> > That's great and all and that's what I told my dad! "Cold air is better
> > for more power." but I need something more than that to convince him! He
> > thinks warm air would be better. I'm looking for a more "technical"
> > answer. WHY, is it better for more power?
> >
And then Jon replied....
>
> Basically, its all based on density... Superchargers, turbochargers,
> nitrous oxide, ram-air, cold air intakes, cool cans, etc. are all doing
> the exact same thing, if you stop and think about it. They all give you
> (varying degrees of) more power by increasing the density of the oxygen
> in the engine.
>
> Consider the "stoich" A/F ratio of 14:1. This is what the computer
> in your truck is trying to maintain; 14 parts of air to 1 part fuel.
> My understanding is that if you can shove 14 more molecules of oxygen
> into the engine, then you can burn 1 more molecule of fuel. Since
> you now have one more "explosion" (or chemical reaction, whatever) than
> before, you're also making more power than before.
>
> (I'm sure the physicists and chemists amoung us will shudder when
> they hear that description; but its the best I can do; I am neither
> a physisist nor a chemist.) :-( (If I'm wrong, please correct me.)
>
> I don't think your Dad will argue that a supercharger or turbocharger
> doesn't increase power. What they do is to compress the oxygen, and
> shove it into the engine. This means that you have more oxygen molecules
> per square inch, and for every extra 14 oxygen molecules, you get to
> burn 1 more fuel molecule than before.
>
> Nitrous oxide is similar except that rather than compressing oxygen
> and putting it into the engine, it replaces normal air molecules with
> nitrous oxide molecules, which contain more oxygen. So you're incresing
> the oxygen density there too. (Not only that, but the extreme cold of
> nitrous oxide decreases the temperature of the incoming air by about
> 60-70 degrees.)
><snip>
God I love it when they talk Nitrous... ;)
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