Indianapolis ? NASCAR officials plan to have a discussion with Kurt Busch and Jimmy Spencer, two men who can’t seem to get along on the race track.

The feud between the two drivers heated up again Sunday in the Brickyard 400 when Busch’s car was bumped from behind by Spencer and went sliding into the wall. It ended Busch’s day on Lap 36, moments after he passed Spencer entering Turn 3.

“That’s what happens when you are running back there with the decrepit old has-been,” Busch said of Spencer. “I guess, he’s really a never-was. We were coming through the pack and he was going backwards. We got in front of him and then he dumped us.”

Busch, who had moved up from 38th and was running 17th, quickly jumped out of the No. 97 Rubbermaid Ford and stood on the track, waiting for Spencer to come back around. He gestured angrily at Spencer as Spencer went by, then waited for the next lap to do it again.

“I wanted to see him black-flagged,” Busch said. “I pointed to my rump because I wanted him sent to the rear.”

Spencer, who finished 31st, insisted he didn’t hit Busch intentionally.

“I think Kurt has a lot to learn, and some of it is to control his mouth,” Spencer said. “I don’t know if something broke on his car or what. He slowed down immediately, and I bumped him. I sure didn’t mean to do it.”

After gesturing to Spencer on the track, Busch was ordered to the NASCAR trailer and told that a discussion with Spencer was needed to clear things up.

This was the fourth time in the last two seasons that Busch and Spencer have had on-track confrontations, including the last lap at Bristol earlier this year when the two drivers bumped twice before Busch won.

“Jimmy is so hard-headed, unlike the soft-wall I hit,” Busch said. “He smashes me when there is so much money and so many points on the line, but he doesn’t know anything about points racing. He has the brain of a peanut.”

Busch, who turned 24 Sunday, is in his second season in Winston Cup and earned his first victory with the win at Bristol. Spencer, 45, has driven 14 seasons in Winston Cup, but hasn’t won since 1994. He is in his first season as the driver of the No. 41 Target Dodge for Chip Ganassi.

“We’re all race car drivers out here, except for the No. 41 car,” Busch said. “I feel real bad for Chip Ganassi.”