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Spoilers work, i have real world data...



There is real numbered data in the 69 Car Life spoiler article. They hooked up cables to the suspension and measured the spoiler vs no spoiler differences. The also did rear only, front only and both combinations.

Cars tested GTO (rear only), Javelin SST (rear only) and Camaro (front and rear). Camaro started showed a difference at 70 mph.

The rear only setup was the worst. Because it pushed down the rear and they pushed up the front at the same time. So the rear only actually created MORE front lift!