Sources indicate that nitrous magnate Shannon Jenkins laid down a 3.89 elapsed time at 191.10 miles per hour during a test session in Valdosta, Ga. The run was made in 86% humidity at 2,800-foot air. The five-second nitrous run is just around the corner. Sources indicate that nitrous magnate Shannon Jenkins laid down a 3.89 elapsed time at 191.10 miles per hour during a test session in Valdosta, Ga. The run was made in 86% humidity at 2,800-foot air. The five-second nitrous run is just around the corner.