Shake and Bake NASCAR Blog Burning rubber: Clint Bowyer, Dale Earnhardt Jr. post blazing speeds at Michigan tire test NASCAR teams are tire testing at Michigan International Speedway ... and they're burning some serious rubber. Image Source: Twitter - @MikeHoag88 By Josh Richter Apr 9, 2014 at 2:30p ET A few NASCAR drivers are tire testing at Michigan International Speedway ... and they're burning some serious rubber. Clint Bowyer says he hit 217 mph. "White of your eyes fast," we hear. RT @ClintBowyer: 217mph top speed so far at @MISpeedway. — MISpeedway (@MISpeedway) April 9, 2014 DeLana Harvick has another word for it. #buttpucker RT @ClintBowyer: 217mph top speed so far at @MISpeedway. — DeLana Harvick (@DeLanaHarvick) April 9, 2014 Dale Earnhardt Jr. wasn't far behind. Back to testing today @MISpeedway. Here's top speed this morning. pic.twitter.com/JlUg9dKWl4— Dale Earnhardt Jr. (@DaleJr) April 9, 2014 Blazing. But what does it mean for the June Sprint Cup race at MIS? With the way things have been going this season, Joey Logano's track qualifying record of 203.949 mph could be in serious jeopardy.