weight vs. hp over a given distance
11-13-2006, 10:32 PM
#11
5th Gear Member
Join Date: Jul 2006
Location: buying tires!
Posts: 3,220
RE: weight vs. hp over a given distance
it is just speculation at this point. i heard if your gear ratio is 3.55 or lower round wheels work best.
ORIGINAL: Ninety5five0
Just hold up a second. So lemme get this strait, round wheels are better than square wheels ? For serious ?
Just hold up a second. So lemme get this strait, round wheels are better than square wheels ? For serious ?
11-13-2006, 10:34 PM
#12
5th Gear Member
Join Date: Mar 2006
Location:
Posts: 2,228
RE: weight vs. hp over a given distance
yea the whole 100 lbs .1 sec 1/4 was one of the first things I heard when I started learning of drag racing. Good for nebs to know tho. I think I may swap over to them pentagon tires you are running there, trying to up my 1/4! Maybe I will hit up some square tires when I hit the 300rwhp mark....
11-13-2006, 10:41 PM
#14
2nd Gear Member
Join Date: Nov 2006
Location:
Posts: 205
RE: weight vs. hp over a given distance
Re: Aerodynamics
I was reading a book on electric cars. Had some interesting insights on airflow. Turns out the front end of the car only accounts for about 10-12% of aerodynamic drag. The back end, particularly on cars that have very flat back ends (Scion), will usually account for over 30%. The underbelly of a car, with all of its bumpiness, came in 2nd place. Its a much more common practice in europe to seal up the bottom end. Not so much in the US, since people rarely look under their cars unless they run something over.
Looking at a fox-body, unless you have a convertible, the drag would be relatively low. The hatchback probably has the least, with its nice , slow taper.
Toward the tail end of my project, I plan to seal up as much of the bottom end of my 90 GT with flat carbon-fiber panels.
I was reading a book on electric cars. Had some interesting insights on airflow. Turns out the front end of the car only accounts for about 10-12% of aerodynamic drag. The back end, particularly on cars that have very flat back ends (Scion), will usually account for over 30%. The underbelly of a car, with all of its bumpiness, came in 2nd place. Its a much more common practice in europe to seal up the bottom end. Not so much in the US, since people rarely look under their cars unless they run something over.
Looking at a fox-body, unless you have a convertible, the drag would be relatively low. The hatchback probably has the least, with its nice , slow taper.
Toward the tail end of my project, I plan to seal up as much of the bottom end of my 90 GT with flat carbon-fiber panels.
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tj@steeda
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