It's a lot for a racing engine. Back in the 80s they had four engines per car per weekend. They'd put in a higher powered engine for qualifying on Saturday, dri

It's a lot for a racing engine. Back in the 80s they had four engines per car per weekend. They'd put in a higher powered engine for qualifying on Saturday, drive it for 4 or 5 laps and swap in a new one for race day. You just can't compare racing engines to road car engines. A race engine idles at the same revs as a road car redlines.