Skidpad and Cornering
10-27-2004, 04:51 PM
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Skidpad and Cornering
Wasn't sure where to put this, but here goes...You have Car A and Car B. Car A pulls .75 on the skidpad, and can go a maximum of 75 MPH around a particular corner. Car B pulls 1.00 on the skidpad. Is it necessarily true that Car B can take the same corner at a maximum of 100 MPH? This is assuming the same racing line would be taken. Any insight would be nice.
10-27-2004, 07:14 PM
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There's a whole lot of variables that will come into play (lift, weight transfer...), so the short answer is "no".
But even to first order, the answer would be no. In purest form, you'd use the centrifugal (or centripetal) force eqn: g = const*V^2/r. So V would go with the square root of G's. Yielding for your example, 87 mph.
But again, that is a crude approximation.
But even to first order, the answer would be no. In purest form, you'd use the centrifugal (or centripetal) force eqn: g = const*V^2/r. So V would go with the square root of G's. Yielding for your example, 87 mph.
But again, that is a crude approximation.
10-27-2004, 07:48 PM
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I wasn't taking aero into account 
, I was just thinking about coefficient of friction really. Figured the variables would throw that idea out. Thanks for the info guys. 
, I was just thinking about coefficient of friction really. Figured the variables would throw that idea out. Thanks for the info guys.
10-28-2004, 11:50 AM
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Skidpad measures "static" grip and is a function of tire patch, tire compound, vehicle weight, and some alignment parameters.
The real world dynamics takes into account the ability of the car to cope with such things as uneven road surfaces, rapid changes in direction, aceleration, etc.
A higher G number is an indication of a grippier car, but may not translate to better handling on the road or on the track.
Bottom line, it means car A will go in a circle on a smooth surface faster than car B.
The real world dynamics takes into account the ability of the car to cope with such things as uneven road surfaces, rapid changes in direction, aceleration, etc.
A higher G number is an indication of a grippier car, but may not translate to better handling on the road or on the track.
Bottom line, it means car A will go in a circle on a smooth surface faster than car B.
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