Air Pump

How fast is the air pump?
[VB – 99/1/31] The pump states that it will inflate a tire in about 15 minutes but I needed something more precise. On my stock 91-93 style wheels and tires, I measured a little more than 30 seconds for about 3lbs of air pressure. Running it for exactly a minute yielded about 6lbs of additional air pressure. The rear tires took about 10 seconds more (40 sec total) to achieve the same 3lb inflation.