If Tony Stewart had his way, Kevin Harvick wouldn’t need a pit crew.

“I think we could have won half the races this year if we didn’t have to pit,” Stewart said Wednesday at his Smoke Show charity event at Texas Motor Speedway.

The No. 4 team’s most recent mishap on pit road occurred Sunday at Dover. A valve stem was knocked off a tire during a Lap 321 pit stop and forced Harvick to pit a second time. That kept Harvick from sweeping both stages and winning after he led a race-high 286 laps. Harvick finished sixth.

“I mean, we got a good group of guys, and I think the change in the pit guns this year has really been hard on our guys,” Stewart said.

The Stewart-Haas Racing co-owner referenced the move by NASCAR to go to a spec pit gun this year over guns built by teams. The guns have garnered criticism from crew chiefs and drivers throughout the season, including Harvick.

“It’s much harder than people think,” Stewart said. “I mean people don’t understand that by slowing the guns down, you would think it would make it easier on these guys because they don’t have to go as fast.

“But the problem is they’re so used to being in time and being at a certain pace that now you’ve got to slow these guys down, and that’s why you see loose wheels because they’re used to moving their hands a lot faster and that pattern being faster. Now the guns can’t keep up with what we’re doing, so we have to slow our guys down to make sure that we don’t have those mistakes. That’s the hardest part.”

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But Stewart has no interest in going back to the old way of things.

“Trust me, the amount of money that the teams were spending developing their own guns was through the roof and it was stupid,” he said. “That was a very smart move by NASCAR to knock that part down. You know, they want the racing to be on the race track and that’s what we want too, so their goal with that was the right goal. Now we just got to slow our guys down enough to make sure they get each one of them tight.”

Dover’s mishap – which kept Harvick from winning for the first time in seven races – was the latest occurrence of a pit miscue undercutting Harvick’s race-winning speed.

In April at Texas, Harvick led 87 laps but endured a jack issue on pit road (Lap 129) and a penalty for too many crew members over the wall (Lap 237) before finishing second.

Harvick led at the final pit stop at Chicagoland but was beat off pit road by Kyle Busch, who went on to win. A few weeks later, SHR made pit crew changes to all four of its teams after Clint Bowyer expressed frustration with his group at Kentucky.

In the Brickyard 400 last month, Harvick was penalized for an uncontrolled tire penalty on Lap 10. On Lap 30, he had to pit a second time after a pit gun failed. On Lap 90, he had to pit from the lead for four tires to deal with a vibration. He placed fourth.