[DeTomaso] Engine Bay Air Flow

[Garth Rodericks]

I think the idea that hot air is three or four inches off the ground is
a misconception. Hot air rises . It is not static. 
>> True, however the source of the heat is the sun baked pavement which heats the air 
present. Hold your finger in the air 3" above a heat source (candle flame), then hold it 3 feet 
above the same heat source, and you'll find that the air is hotter closer to the heat source.

In a fire they tell
you to try to get as close to the floor as is possible to try to breath.
>> Purely a function of smoke, not heat. The idea is that the smoke and soot have risen 
with higher into the air and will choke you if you try to breath it. And many of the 
combustion byproducts of a home fire are dangerous. 

Can't wait to hear the results of your testing. Great idea!


--- On Mon, 8/24/09, boyd casey <boyd411 at gmail.com> wrote:

From: boyd casey <boyd411 at gmail.com>
Subject: Re: [DeTomaso] Engine Bay Air Flow
To: "Garth Rodericks" <garth_rodericks at yahoo.com>
Cc: "Brent Stewart" <brent.stewart at yahoo.com>, detomaso at realbig.com
Date: Monday, August 24, 2009, 7:11 PM

I think the idea that hot air is three or four inches off the ground is a misconception. Hot air rises . It is not static. In a fire they tell you to try to get as close to the floor as is possible to try to breath. I have an infrared thermometer and an anenometer that fits right into my ducting. Once my leh is better I plan to continue my tests.

Boyd


On Mon, Aug 24, 2009 at 10:07 PM, boyd casey <boyd411 at gmail.com> wrote:


I have. I have a dual intake plenum and two 4"diameter ducts that have k%n style air cleaners fully enclosed in billet jackets that go all the way to the back of the car and pick up air with naca ducts right behind the a arms. I have an anenometer that measures cfm and air temp but I have not been able to test my results since I broke my leg. I am considering going to the rear wheel wells if I don't get  good results at the back of the car.

Boyd





On Mon, Aug 24, 2009 at 8:09 PM, Garth Rodericks <garth_rodericks at yahoo.com> wrote:

<<< Has anyone built upon the snorkel idea?  Getting the air from below was a stock
application at one point (per Asa Jays picts i believe), was it not?  Seems that is the direction

the air wants to flow anyway... >>>

I think the issue is that the air beneath the car is already warmer than we want - it's inches off
the hot pavement and is therefore hotter than air 3-4 feet off the ground, and it's been heated

by the radiator exhaust which exits under the car (unless perhaps you have hibachi grills in
the hood).

The goal of a cold air intake (or nitrous for that matter) is to cool the intake charge to make
more power.


Cheers!
Garth
#4033




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