Allright, can someone please explian to me what skidpad g's are, I'm here witha road and track in my lap comparing the lancer EVO's .98 rating and finding other cars (a McLAren F1 has a rating of .86 while a stock wrx has a rating of .84) what is this a function of? how many G's you can pull at a predetermined speed before you lose traction? or is is how many g's you pull while under maximum straightline braking? Will tossing in stiffer set of springs, or putting on some 6 piston calipers, increase this number? is it even desirable to have a high number? I don't wanna be flogged by an EVO on the track!

 

Here is a very brief explanation on G's: amount of cornering force your car can exert, or how well it sticks to the road during turns. This is measured in lateral G's, 1.0 G being equal to the force of earth's gravity.
So brakes have nothing to do with it, it is chassis, suspension and tires.
here is a site that has a basic G force calculator:

http://www.iroczone.com/calcs/chassis.htm

 

question question!!

doesn't ayc or S ayc make your G force in corner lower?

does that affect what a max G a car can handle??

if an AYC is in effect, would it make the G reading inaccurate??

i dont' think jdm evo even pulls a .97 G

 

Not sure of the answers to your questions but here is a list of cars that Motor Trend tested in May 98 and the results:
Viper GTS: 1.01 G
Lotus Esprit: .98 G
Ferrari 355 : .97 G
Panoz Roadster AIV: .94 G
Corvette: .93 G
Porche 911: .91 G
BMW M: 91. G
Aston Martin DB7: .87 G

 

Just to clarify something about the magazine G ratings:

These ratings are calculated from several trips around a skidpad (big open flat lot) in both directions. They follow a line of a circle drawn at a 200ft , 300ft, or 400ft diameter (or whatever the certain magazine wants to test at) and time the car for one complete revolution. The shorter the time, the more grip. Then the average is taken between the best run in each direction. In essense, the skidpad rating is the average grip exerted throughout a 360deg turn. If you were to measure the immediate G loads on the car, you would find many cars breaching the 1.0G point, but only for a moment before they begin to understeer, slide or oversteer to the point of losing traction.

Tires, swaybars, engine power, pavement ingredients and smoothness are all major factors as are the drivers behind the wheel.

G ratings are best considered as measurements of a car's handling balance at the limit than they are measurements of ultimate grip.

 

Adjustable front to rear torque bias center differential has a lot to do with that.