Morrison 1990 ZR-1 Speed Record: Aver 24-Hour 174.885-MPH! – VIDEO

It was a cold, windy, overcast, nasty in Texas on the day of the record run. The timed event started at 9:55:12am on March 1, 1990 with John Heinricy at the wheel of the ZR-1 and Tommy Morrison driving the L98. The pace was essentially flat-out! Heinricy said, “Speed was in the low 190s. We didn’t lift in the turns. We entered them foot on the floor and by the time we came out of it, we’d be in the high-170s. It didn’t slow down much in the turns.” Fuel stops only took about 45-seconds to fill the 48-gallon fuel cell. Interestingly, the chassis and tires weren’t really stressed that much by the low cornering loads – something that would have been an issue at one of the high-banked tracks. Read More