ninety-one-racing
The buck....
- Joined
- Nov 22, 2008
- Messages
- 35
you wont notice any difference in acceleration, well you shouldnt, its just the top end speed would in theory be greater due to less of a 'parachute' effect being created by the bumper as air passes under the car and travels up into the recess in front of the bumper. Drilling holes in it might be an idea but it could create other problems. If holes were cut then the air underneath the car is going to behave differently, air will be sucked up from under the car due to negative pressure created by the holes in the bumper, so it sucks the car to the ground. But this will only work if the holes are big enough and placed appropriately. On the other hand,if the holes arent big enough or spaced right, the airflow under the car will build up (yes despite the new holes),thus raising it up and your car will handle like a dog on ice. You could just 'sheet' the bottom of the car, thus making it entirely smooth, throw on a diffuser at the back which would 'clean' up the air passage underneath the car and would be a better job than drilling holes.......