UPDATED: Newgarden, Lundgaard and Ferrucci add to Chevrolet engine penalties in Portland

It’s the final month of the IndyCar season which means grid penalties for using more than the four allotted engines per lease agreement are starting to happen at a rapid rate.

Chip Ganassi Racing’s Kyffin Simpson was the subject of a six-spot penalty after moving to his fifth Honda engine for the season in the No. 8 Chip Ganassi Racing on approach to this weekend’s BitNile.com Grand Prix of Portland.

Two overnight engine changes within the Chevrolet camp have added Arrow McLaren’s Christian Lundgaard with the No. 7 car, and AJ Foyt Racing’s Santino Ferrucci to the list with his No. 14 entry.

It’s an unfortunate development for both drivers as Lundgaard was fastest on Friday and stood as a top contender to win pole position for Sunday’s 110-lap race. Although Ferrucci wasn’t as quick during opening practice, he captured last year’s Portland pole and was expected to be in the mix for a run inside the Firestone Fast Six. Saturday morning's second practice session added a fourth entry to the list, when an engine-related issue for Josef Newgarden's No. 2 Team Penske Chevy forced his team to make a change of powerplant.

With IndyCar’s unapproved engine penalty system, every engine change after the four motors that are meant to last the entire season comes with a six-position demotion after qualifying on road and street courses; nine spots are lost on ovals.

The penalty rules also eliminate Simpson, Lundgaard, and Ferrucci from contributing to the manufacturers’ championship, but with Honda holding an unassailable lead over Chevy, no impact will be felt.

• Story updated following confirmation of an additional engine penalty for Newgarden.