by gascarnut » Tue Feb 06, 2018 1:59 pm
The loose motor pods screws allow the chassis and the pod to flex relative to each other, which makes the car corner more smoothly. It's the same as backing off the body mounting screws - isolates vibration.
Also the moldings of the chassis and/or pod are sometimes a little twisted, so loosening the screws allows everything to sit flatter and straighter.