Welcome to the RACER Mailbag. Questions for any of RACER’s writers can be sent to mailbag@racer.com. Due to the high volume of questions received, we can’t guarantee that every letter will be published, but we’ll answer as many as we can. Published questions may be edited for length and clarity. Questions received after 3pm ET each Monday will appear the following week.

Q: Have the rules changed regarding grid drops for unapproved engine changes? Seems there have been quite a few failures (especially Hondas) but no grid penalties that I have noticed.

Ed Joras

MARSHALL PRUETT: Not to my knowledge, Ed. Once an entry goes beyond its fourth engine provided in the four-engine lease, the grid penalties begin. Since we’re only nine races in, it would be too early for fifth or sixth engines to be needed, but it isn’t far away.

Q: I realize it’s a very, very big ‘if’; however if Alex Palou stays with Ganassi, are we witnessing a changing of guard where Scott Dixon no longer the main championship threat on the team?

Matt, Dallas, TX

MP: Palou’s gone from Ganassi after he drives out of the Laguna Seca paddock on Sunday evening, September 10, so that’s happening. But in the absence of Palou, no, I don’t think Dixon would be unable to deliver another title before he retires. Where Palou’s had the same race engineer and crew chief since he arrived at Ganassi in 2021, Dixon’s on his third race engineer and second crew chief over the same period, and that can’t be ignored. By 2023, the combination of Palou, Julian Robertson, and Ricky Davis is finely tuned and devastating.