Out with the old....
Thread Starter
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Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,996
Likes: 9,884
From: Rio Rancho, NM
It's all air flow dynamics I guess. Once you look at the Bernoulli equation then it starts making a bit more sense. The basic equation is fairly simple;
v squared/2 + gz + P/d = downforce
where v is the air velocity, g is gravity, z is the elevation of a point above a reference plane, P is pressure and d is the air density.
With a little manipulation you can work the equation around to;
1/2dv square + dgz + P = downforce
Now if we let 1/2dv square = q (dynamic pressure)
and h = z + P/dg (hydraulic head)
and Total P = p + q
then with a little more manipulation and simplifying we can get the basic form of the equation; P + q = downward force
Of course out in the real world with changing elevations, air densities, acceleration, g force of the curves, etc it probably doesn't do much to the overall handling of the truck
Bobby
v squared/2 + gz + P/d = downforce
where v is the air velocity, g is gravity, z is the elevation of a point above a reference plane, P is pressure and d is the air density.
With a little manipulation you can work the equation around to;
1/2dv square + dgz + P = downforce
Now if we let 1/2dv square = q (dynamic pressure)
and h = z + P/dg (hydraulic head)
and Total P = p + q
then with a little more manipulation and simplifying we can get the basic form of the equation; P + q = downward force
Of course out in the real world with changing elevations, air densities, acceleration, g force of the curves, etc it probably doesn't do much to the overall handling of the truck
Bobby
Elder User
Joined: Oct 2008
Posts: 556
Likes: 1
From: Prescott, AZ
Careful; you may need to watch your p’s & q’s.
It appears you have manual stability and traction control. Therefore, your equation could be a ticket for disaster.
I’d lay off the frosties & the lead foot, and then re-compute.
It appears you have manual stability and traction control. Therefore, your equation could be a ticket for disaster.
I’d lay off the frosties & the lead foot, and then re-compute.
Post Fiend
Joined: Jun 2001
Posts: 7,493
Likes: 7
From: Erie, pa
Cool Vid
Now the bad part
My driveway marks the beginning/end of the local "I'm gonna blow thru this neighborhood and show these people something strip" and I'm the local ******* who objects to the ricerockets/tuners/my pipes are louder than yours crowd and I do things to interrupt their fun.
Everything has its place and time.
Now the bad part
My driveway marks the beginning/end of the local "I'm gonna blow thru this neighborhood and show these people something strip" and I'm the local ******* who objects to the ricerockets/tuners/my pipes are louder than yours crowd and I do things to interrupt their fun.
Everything has its place and time.
Thread Starter
|
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,996
Likes: 9,884
From: Rio Rancho, NM
Dick,
I hear ya. My neighbors are pretty forgiving. If I was doing this sort of thing on a daily basis, or when the park was full of kids, etc then someone might get upset, but in the middle of the day when no one is around, they cut me a little slack now and then.
Bobby
I hear ya. My neighbors are pretty forgiving. If I was doing this sort of thing on a daily basis, or when the park was full of kids, etc then someone might get upset, but in the middle of the day when no one is around, they cut me a little slack now and then.
Bobby
Thread Starter
|
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,996
Likes: 9,884
From: Rio Rancho, NM
Yea, they are a pretty good group. We've spent more than a few nights in someones garage sharing frosty beverages and swapping lies. The best things is that there is no neighborhood association.
Cargo Master
Joined: Sep 2010
Posts: 3,426
Likes: 48
From: Hot AZ (Phoenix Valley)
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Hotshot
Joined: Jan 2001
Posts: 16,882
Likes: 3,126
From: SE Wisc. (the Rust Belt)
It's all air flow dynamics I guess. Once you look at the Bernoulli equation then it starts making a bit more sense. The basic equation is fairly simple;
v squared/2 + gz + P/d = downforce
where v is the air velocity, g is gravity, z is the elevation of a point above a reference plane, P is pressure and d is the air density.
With a little manipulation you can work the equation around to;
1/2dv square + dgz + P = downforce
Now if we let 1/2dv square = q (dynamic pressure)
and h = z + P/dg (hydraulic head)
and Total P = p + q
then with a little more manipulation and simplifying we can get the basic form of the equation; P + q = downward force
Of course out in the real world with changing elevations, air densities, acceleration, g force of the curves, etc it probably doesn't do much to the overall handling of the truck
Bobby
v squared/2 + gz + P/d = downforce
where v is the air velocity, g is gravity, z is the elevation of a point above a reference plane, P is pressure and d is the air density.
With a little manipulation you can work the equation around to;
1/2dv square + dgz + P = downforce
Now if we let 1/2dv square = q (dynamic pressure)
and h = z + P/dg (hydraulic head)
and Total P = p + q
then with a little more manipulation and simplifying we can get the basic form of the equation; P + q = downward force
Of course out in the real world with changing elevations, air densities, acceleration, g force of the curves, etc it probably doesn't do much to the overall handling of the truck
Bobby
Thread Starter
|
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,996
Likes: 9,884
From: Rio Rancho, NM
Rusty,
LOL....what can I say, I'm a city boy now. I might have to give you a call. I'm having a hard time finding center caps around here. I only have 2 of the ones that go with the mags and I figured I'd replace the set. The originals were a chrome cap that just pushes into the center hole of the wheel. I believe the center hole is 3 1/2" but I'll have to go measure it to make sure.
As for the tailgate straps, no they aren't a dog leash. I actually sewed them up myself. I went to the local surplus store and bought a few feet of nylon webbing strap and just sewed them to the length I wanted. I'm not happy with them and I'm going to make another set and this time add an adjustment buckle to I can fine tune them (and I'll use black thread this time) I just sewed them on a regular sewing machine.
Bob, Oh yea, its all about the G force of the M factor multiplied by a constant (2.3)
Bobby
LOL....what can I say, I'm a city boy now. I might have to give you a call. I'm having a hard time finding center caps around here. I only have 2 of the ones that go with the mags and I figured I'd replace the set. The originals were a chrome cap that just pushes into the center hole of the wheel. I believe the center hole is 3 1/2" but I'll have to go measure it to make sure.
As for the tailgate straps, no they aren't a dog leash. I actually sewed them up myself. I went to the local surplus store and bought a few feet of nylon webbing strap and just sewed them to the length I wanted. I'm not happy with them and I'm going to make another set and this time add an adjustment buckle to I can fine tune them (and I'll use black thread this time) I just sewed them on a regular sewing machine.
Bob, Oh yea, its all about the G force of the M factor multiplied by a constant (2.3)
Bobby
Mountain Pass
Joined: Sep 2010
Posts: 184
Likes: 0
From: Oconomowoc, WI
Bobby,
I have been thinking about the slotted wheels on my truck since I first saw it buried in the mud. I have an old Boler camper with the E.T. slotted wheels on it so intend to use the truck as a tug with matching paint etc. Glad to finally see the cool old slotted wheels in action!
I have been thinking about the slotted wheels on my truck since I first saw it buried in the mud. I have an old Boler camper with the E.T. slotted wheels on it so intend to use the truck as a tug with matching paint etc. Glad to finally see the cool old slotted wheels in action!
Thread Starter
|
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,996
Likes: 9,884
From: Rio Rancho, NM
Moe,
Here's a close up of the 2 worst of the Cragars. There's quite a bit of salt pitting on the center sections, and peeling chrome on the outers.
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My slotted mags aren't perfect either, they have a bit of pitting but they cleaned up pretty good. I used some of the Eagle One mag cleaner and a bruch and in just a few minutes the old yellowed mags shine right up
Marty,
I've always loved the slotted mags. My four favorite wheels are slotted mags, Cragar SS, Torque Thrust, and chrome reverse (with or without baby moons)
Bobby
Here's a close up of the 2 worst of the Cragars. There's quite a bit of salt pitting on the center sections, and peeling chrome on the outers.
[IMG]
[/IMG][IMG]
[/IMG]My slotted mags aren't perfect either, they have a bit of pitting but they cleaned up pretty good. I used some of the Eagle One mag cleaner and a bruch and in just a few minutes the old yellowed mags shine right up
Marty,
I've always loved the slotted mags. My four favorite wheels are slotted mags, Cragar SS, Torque Thrust, and chrome reverse (with or without baby moons)
Bobby
Thread Starter
|
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,996
Likes: 9,884
From: Rio Rancho, NM
Nice!!
It would sure be coold to find some really skinny ones for the front of your truck since you are going with such a big and meaty in the rear....give it that drag racer look. You might do some asking around over at the HAMB, someone might have something that would work
Bobby
It would sure be coold to find some really skinny ones for the front of your truck since you are going with such a big and meaty in the rear....give it that drag racer look. You might do some asking around over at the HAMB, someone might have something that would work
Bobby