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Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. [message #329102 is a reply to message #329101]

Tue, 13 February 2018 10:08

Marsh Wilkes

Messages: 155
Registered: January 2004

Karma:

Senior Member

I grew up reading Tom McCahill, hell of a guy!

https://en.wikipedia.org/wiki/Tom_McCahill

https://en.wikipedia.org/wiki/Tom_McCahill

Don't know if these links are working, but you can copy and paste.

Marsh (rarely post) Wilkes

-----Original Message-----
From: Keith V
Sent: Tuesday, February 13, 2018 10:22 AM
To: James Hupy ; gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Stock gauges. How to calibrate. As you just don't
really know the real temp, or oil pressure numbers.

> Something like "inversely proportional to the square of the speed"
Ha ha do we wish!

Wind resistance is the Coefficient of Drag(CD) times the frontal area (A)
times the speed squared (v^2)

https://en.wikipedia.org/wiki/Drag_(physics)

Drag depends on the properties of the fluid and on the size, shape, and
speed of the object. One way to express this is by means of the drag
equation:

F D = 1 2 ρ v 2 C D A {\displaystyle F_{D}\,=\,{\tfrac {1}{2}}\,\rho
\,v^{2}\,C_{D}\,A} [F_{D}\,=\,{\tfrac {1}{2}}\,\rho \,v^{2}\,C_{D}\,A]

where

F D {\displaystyle F_{D}} [F_{D}] is the drag force,
ρ {\displaystyle \rho } [\rho] is the
density of the
fluid,[11]
v {\displaystyle v} [v] is the speed of the object relative to the fluid,
A {\displaystyle A} [A] is the cross sectional
area, and
C D {\displaystyle C_{D}} [C_{D}] is the drag
coefficient – a
dimensionless number.

since CD p and A are fixed all you can do is reduce v^2
________________________________
From: Gmclist on behalf of James Hupy

Sent: Tuesday, February 13, 2018 8:52 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Stock gauges. How to calibrate. As you just don't
really know the real temp, or oil pressure numbers.

Johnny, 65 pushes a bunch of air in front of the coach. Something like "
inversely proportional to the square of the speed" or some other axiom.
When I was a teenager, my mother bought me a subscription to Mechanix
Illustrated. There was a monthly contributor called "Uncle Tom" McHale.
(sp) who did automobile tests. Once a year they did the Mobilgas Economy
Run, and he revealed all the secret tricks they used to improve fuel
economy. One was inflating the bias ply tires to 50 psi. Another was to
place a piece of wood under the accelerator. Swapping thermostats,
maximizing ignition timing, coasting with the engine off on downhills,
driving like you had a balloon under the foot feed was one of his
favorites. Anyway, he always drove under 50 bring the tests. Steady speed,
no jack rabbit starts. You get the picture. If you or I am following
someone who drives like that, it is sure to cause road rage. But it does
save gas.
Jim Hupy
Salem, Or

On Feb 13, 2018 5:55 AM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:

> Can't agree, Jim. Road speeds of 60 - 65 per on cruise. The spinning at
> startup if you aren't careful is due I believe to a lack of traction in
> front coupled with a breathed-on engine. To the degree that it wouldn't
> go up a slight grade on a wet gravel county road in MO. I had to fall
> back
> and get a running start. This with a no slip differential which simply
> means both front wheels spin when there's no traction.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
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[Message index]

		[GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: BobDunahugh on Mon, 12 February 2018 01:25
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: jhbridges on Mon, 12 February 2018 07:47
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Kingsley Coach on Mon, 12 February 2018 08:02
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Matt Colie on Mon, 12 February 2018 09:43
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: jhbridges on Mon, 12 February 2018 12:28
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: James Hupy on Mon, 12 February 2018 12:32
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Kingsley Coach on Mon, 12 February 2018 13:39
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: jhbridges on Tue, 13 February 2018 07:54
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: James Hupy on Tue, 13 February 2018 08:52
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Keith V on Tue, 13 February 2018 09:22
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Marsh Wilkes on Tue, 13 February 2018 10:08
		[GMCnet] Sure got this way off topic. Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: BobDunahugh on Tue, 13 February 2018 11:21
		Re: [GMCnet] Sure got this way off topic. Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: James Hupy on Tue, 13 February 2018 11:39
		Re: [GMCnet] Sure got this way off topic. Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Jim Galbavy on Tue, 13 February 2018 15:37
		Re: [GMCnet] Sure got this way off topic. Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: SpookyEng on Wed, 14 February 2018 05:00
		Re: [GMCnet] Sure got this way off topic. Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: USAussie on Wed, 14 February 2018 05:18
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: jhbridges on Wed, 14 February 2018 08:12
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Bullitthead on Wed, 14 February 2018 08:43
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: emerystora on Wed, 14 February 2018 11:26
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Bill Van Vlack on Thu, 15 February 2018 10:00
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: k2gkk on Thu, 15 February 2018 11:14
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: jimk on Thu, 15 February 2018 13:33
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: jhbridges on Thu, 15 February 2018 08:39
		Re: [GMCnet] Stock gauges. How to calibrate. As you just don't really know the real temp, or oil pressure numbers. By: Matt Colie on Thu, 15 February 2018 17:30

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