IndyCar Series officials have announced a 60 Engine Manufacturer Championship point penalty to Honda after a host of unapproved engine changes.
Honda powerplants were changed outside the rules to the Dale Coyne entry of Justin Wilson, Graham Rahal (Rahal Letterman Lanigan), Takuma Sato (AJ Foyt), and Andretti Autosport runners James Hinchcliffe, Carlos Munoz and Marco Andretti.
Honda claimed its 10th Indianapolis 500 since 2003 through Ryan Hunter-Reay’s victory in the classic 200-lap affair on Sunday.
Six of the wins came when it was IndyCar’s sole engine supplier.
In further penalties, IndyCar has stripped four teams and drivers of points following engine changes.
Jacques Villeneuve (Schmidt Peterson Motorsports), Oriol Servia (Rahal Letterman Lanigan Racing), Martin Plowman (AJ Foyt Racing) and Alex Tagliani (Sarah Fisher Hartman Racing) have each been deducted 10 points for the alleged breaches.
IndyCar also announced that Chevrolet has received a 10-point penalty after the engine was changed in the car of polesitter Ed Carpenter.
The penalties follow the previous race on the Indianapolis road course when Chevrolet was handed a $20,000 fine and stripped of 10 manufacturer points following after allegedly breaching torque and traction control regulations which it said it would appeal.