Who's good with spreed sheets and math/tech articles?

[Mac]

I've been think about this for a long time and digging into different tech articles on how much HP it takes for a certain vehical going a certain speed. Basically boils down to weight,frontal area, drag coeffiecent and a couple of minor other things. Depending on your gearing, shows why sometimes you can reach a high speed in a lower gear.
Dave - Looks like I can't attach a , can't attach the xls file here

Ref info
http://mb-soft.com/public2/car.html

http://ecomodder.com/wiki/index.php/Vehicle_Coefficient_of_Drag_List

 

[85_Ranger4x4]

This might help too:

http://en.wikipedia.org/wiki/Square-cube_law

It was first introduced to me in ground school in relation to midair icing, in addition to the extra weight it also screws with the aerodynamics of the aircraft.

 

[doorgunner]

Dodge must use those rules with their MDS hemi engines....my son-in-law's truck gets 24 mpg on the same stretch of backroads that my wife's SUV gets 18 mpg on/same day/same outside temp/no traffic/same speed/approx. same vehicle weight

 

[Mcleary316]

Cool article... turns out physics is real! lol

 

[Mac]

This might help too:

http://en.wikipedia.org/wiki/Square-cube_law

It was first introduced to me in ground school in relation to midair icing, in addition to the extra weight it also screws with the aerodynamics of the aircraft.

We use something similar in piping and hydraulic design. Double the size of the pipe and flow increases four time. Double a cylinder and four times the pressure is available.
Dave