Math help

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fordman
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Post by fordman »

mrungOwa since your truck is named jethro isn't not plus not = not?
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Post by 72hiboy4x4 »

can we go back to english now????
In life many men take the path of righteousness, some take the path many others follow (G.M. owners, for example), some take a more arduous path, some a simpler path. I, sir, took the PSYCO-PATH!!
fordman
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Post by fordman »

how about spanish? se hablo espanol'
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Post by 19674x4 »

me no hablo espanol, hola senor, como esta,muy bien, tengo uno pregunta, Que hora es? ah si si es la una,



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Post by HOWDY69 »

Math is the same in any language. It is universal.
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Post by fordman »

no i don't even know any pregnant women.
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Post by mrung0wa »

No No No 19674x4!

It's Spanish, not Mexican! I did not detect any slang from that conversation.


Yes fordman that is correct!

Ya see I got 6 grades of education in my brain.
I don't know if I'm gonna be an astronaut or a double not secret spy. :hmm:

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Post by 19674x4 »

me no hablo espanol, hola senor, como esta,muy bien, tengo uno pregunta, Que hora es? ah si si es la una,



OH MY GOD I AM GOING MEXICAN
My Photo Album
2012 Cummins-the luxury Tow Pig
1967 F-250 highboy 352, np435(((((((sold))))))))) My first true love
1968 F100 SWB. 360, np-435, flatbed, currently acting as a hornest nest and bee hive.
1971 F-100 4x4 Step-side. 360, np-435, 70k origional miles- needs allot of love.
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Post by HOWDY69 »

You folks seem to be enjoying math so much here is a quote from the FordFE site.

ENJOY :D

Any tube will flow a wide range of cfm ratings, but the higher the cfm, the higher the pressure drop through the tube. The equation you need is called Poiseuille's Law:

Iv = (Pi*r^4/8nL)*deltaP ,

Where:

Iv = rate of flow in cubic meters per second
Pi = 3.1416
r^4 = radius of the tube in meters, raised to the fourth power
n = the viscous flow constant for the material in question
L = length of the tube in meters
deltaP = the pressure drop in Pascals

All this metric stuff is confusing, so here are some conversion factors (from www.onlineconversion.com):

1 psi = 6894 Pascals; 1 Pascal = .000145 psi
1 cfm = .0004719 cubic meters per second; 1 cubic meter per second = 2119 cfm
1 foot = .305 meters; 1 meter = 3.279 feet
1 inch = .0254 meters; 1 meter = 39.34 inches

Also, the viscous flow constant (n) for air at 20 degrees Celsius (68 Fahrenheit) is 0.018 Pascal-seconds.

So, let's say you want to duct air from the inboard headlight of your 64 Tbolt to one of the Holley carbs on your 2X4 FE induction system. You want to use a 5" diameter tube, 4 feet long, and you want to limit your pressure drop in the tube to 0.25 psi. How much air will the tube flow at that pressure drop?

- The tube radius is 2.5 inches, or 0.0635 meters.
- The tube length is 4 feet, or 1.22 meters
- The pressure drop is .25 psi, or 1723.5 Pascals

So, the flow rate (Iv) is ((3.1416*.0635*.0635*.0635*.0635)/(8*.018*1.22))*1723.5,
which calculates out to 0.501 cubic meters per second, or 1062 cfm. So, you can flow up to 1062 cfm through that tube, and maintain a pressure drop of 0.25 psi or less. :eek:

Ain’t physics wonderful? 8) LOL – Jay
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Post by 19674x4 »

ya lost me at Poiseuille's Law

i suck at math
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1968 F100 SWB. 360, np-435, flatbed, currently acting as a hornest nest and bee hive.
1971 F-100 4x4 Step-side. 360, np-435, 70k origional miles- needs allot of love.
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re: Math help

Post by wildcard »

:hmm: :hmm: :hmm: :hmm: :hmm:
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re: Math help

Post by mrung0wa »

Hey when are we goin' to get back to the Beverly Hillbilly stuff?

That was a heap-O-fun!

Yall come back now, yahere!

Lawrence 8)
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SOLD! 69 F100 Contractor SPECIAL 300 I6 "Jethro"
01 BMW 325i 4DR E46(Wife's car)
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re: Math help

Post by 1968flareside »

:lolprev: :yt:
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re: Math help

Post by binder56jd »

what would be wrong with using a level and a angle indicator? saves a lot of migraines :hmm: jd
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HOWDY69
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Post by HOWDY69 »

Like a protractor or an inclinometer?
69 F250, FE Specialties 410, CJ Valves, RPM Intake, Holley 4150,......10 Smiles per gallon
71 Clydesdale in many pieces; 302 roller motor waiting impatiently
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