Math help
-
- 100% FORDified!
- Posts: 22329
- Joined: Sun Aug 28, 2005 8:17 pm
- Location: Kansas, Ottawa
- Contact:
- 72hiboy4x4
- Blue Oval Fanatic
- Posts: 978
- Joined: Sat Jan 01, 2005 8:53 pm
- Location: As far away as I can be from Wa state, without crossing the Mississippi
- Contact:
-
- 100% FORDified!
- Posts: 22329
- Joined: Sun Aug 28, 2005 8:17 pm
- Location: Kansas, Ottawa
- Contact:
- 19674x4
- Blue Oval Fanatic
- Posts: 903
- Joined: Mon Jun 27, 2005 12:31 am
- Location: Oakland Oregon/Sheridan Wyoming
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
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.
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.
- HOWDY69
- Preferred User
- Posts: 484
- Joined: Sat Dec 31, 2005 6:31 pm
- Location: California, Sacramento
-
- 100% FORDified!
- Posts: 22329
- Joined: Sun Aug 28, 2005 8:17 pm
- Location: Kansas, Ottawa
- Contact:
- mrung0wa
- Blue Oval Fan
- Posts: 612
- Joined: Mon Mar 28, 2005 6:31 am
- Location: Soon in Olympia,WA
- Contact:
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.
Lawrence
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.
Lawrence
http://www.fordification.com/galleries/ ... ?pos=-2746
FOR SALE: 64 Galaxie 390HiPo C6 (Project Car)
SOLD! 69 F100 Contractor SPECIAL 300 I6 "Jethro"
01 BMW 325i 4DR E46(Wife's car)
03 EXPEDITION XLT FX4(2WD/AWD/4WD) 5.4L K&N FipK
"I beat my head against the wall, Because it feels good when I stop."
FOR SALE: 64 Galaxie 390HiPo C6 (Project Car)
SOLD! 69 F100 Contractor SPECIAL 300 I6 "Jethro"
01 BMW 325i 4DR E46(Wife's car)
03 EXPEDITION XLT FX4(2WD/AWD/4WD) 5.4L K&N FipK
"I beat my head against the wall, Because it feels good when I stop."
- 19674x4
- Blue Oval Fanatic
- Posts: 903
- Joined: Mon Jun 27, 2005 12:31 am
- Location: Oakland Oregon/Sheridan Wyoming
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
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.
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.
- HOWDY69
- Preferred User
- Posts: 484
- Joined: Sat Dec 31, 2005 6:31 pm
- Location: California, Sacramento
You folks seem to be enjoying math so much here is a quote from the FordFE site.
ENJOY
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.
Ain’t physics wonderful? LOL – Jay
ENJOY
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.
Ain’t physics wonderful? LOL – Jay
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
71 Clydesdale in many pieces; 302 roller motor waiting impatiently
- 19674x4
- Blue Oval Fanatic
- Posts: 903
- Joined: Mon Jun 27, 2005 12:31 am
- Location: Oakland Oregon/Sheridan Wyoming
ya lost me at Poiseuille's Law
i suck at math
i suck at math
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.
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.
- wildcard
- Blue Oval Guru
- Posts: 1045
- Joined: Sun Dec 04, 2005 5:40 pm
- Location: Texas
- mrung0wa
- Blue Oval Fan
- Posts: 612
- Joined: Mon Mar 28, 2005 6:31 am
- Location: Soon in Olympia,WA
- Contact:
re: Math help
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
That was a heap-O-fun!
Yall come back now, yahere!
Lawrence
http://www.fordification.com/galleries/ ... ?pos=-2746
FOR SALE: 64 Galaxie 390HiPo C6 (Project Car)
SOLD! 69 F100 Contractor SPECIAL 300 I6 "Jethro"
01 BMW 325i 4DR E46(Wife's car)
03 EXPEDITION XLT FX4(2WD/AWD/4WD) 5.4L K&N FipK
"I beat my head against the wall, Because it feels good when I stop."
FOR SALE: 64 Galaxie 390HiPo C6 (Project Car)
SOLD! 69 F100 Contractor SPECIAL 300 I6 "Jethro"
01 BMW 325i 4DR E46(Wife's car)
03 EXPEDITION XLT FX4(2WD/AWD/4WD) 5.4L K&N FipK
"I beat my head against the wall, Because it feels good when I stop."
- 1968flareside
- Preferred User
- Posts: 263
- Joined: Sun Jul 25, 2004 5:11 pm
- Location: Corona De Tucson, Arizona
- Contact:
re: Math help
1968 F-100 Flareside
1999 F-150 XLT 4X4
http://www.fordification.com/galleries/ ... ?cat=10023
and DON'T FORGET!!
1999 F-150 XLT 4X4
http://www.fordification.com/galleries/ ... ?cat=10023
and DON'T FORGET!!
- binder56jd
- Blue Oval Guru
- Posts: 1067
- Joined: Fri Jan 14, 2005 9:15 pm
- Location: Ok ra homa, Ardmore
- Contact:
re: Math help
what would be wrong with using a level and a angle indicator? saves a lot of migraines jd
"Sell crazy someplace else. We're all stocked up here" — Jack Nicholson, As Good As it Gets
now serving #235
"the only way to believe in the American dream is to be asleep"--GC
How much easier it is to be critical than to be correct. - Benjamin Disraeli
now serving #235
"the only way to believe in the American dream is to be asleep"--GC
How much easier it is to be critical than to be correct. - Benjamin Disraeli