thePill
Camaro5's Most Wanted
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- Aug 13, 2012
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- #2,116
Good question, yes, center to center of the tire (which should also be the center of the wheel.How is track width measured? Center of tire to center of tire, or outer edge to outer edge?
What we are looking for is called "The Golden Ratio" between the Wheelbase and Track. Some argue it is 1.7, most argue that it is 1.6. Personally, I can't say there is actually a rule of thumb however, that "Golden" area is between 1.6 and 1.7. The reason is, there are other variables that could make a "Golden" ratio ungolden. Excessive weight, high roll center/center of gravity, wheelbase too long (over 108/109) and not enough tire to name the major few.
Now, the ATS... good lord...
It is bad as is, its like above a 1.8 on a 109.3x60/62.3 (1.75fr/1.82rr). That is not going to make it to the Camaro. The ATS-V has an increased track but still, it doesn't break 1.7.
Now, the GT... It is right at 1.7 (1.72fr/1.65rr). That is almost perfect. Now, the regular GT350 has a 35mm track increase in the front (no word on rear or GT350R yet). That is 1 3/8ths increase over the GT's 62.3 (about 63.7) bringing the front up to 1.68.
In my opinion, a 1.6 is better for road work. The 430 has a 1.58/1.64 and is considered optimal. The Mustang is competing with the Corvette and 430 now on the foot. There is only so far you can go with a front engine, rear drive and rear seats. The Mustang GT and GT350 are pushing the boundaries of an optimal foot print.
The Camaro will need to be equal to the Mustang or spend an entire generation making up for it.
Here, as the Math Gods say...
1.618...The golden ratio (symbol is the Greek letter "phi" shown at left)
is a special number approximately equal to 1.618
However, this does not consider vehicular variables as I mentioned before. Although, this 1.618 is THE geometry vehicles in this class strive for.
Same can be said for weight distribution. The is a desired optimal setting but, many real world factors can see advantages either way. 40/60 is actually optimal but unobtainable in a front engine/rear drive car.
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