Hi all I am doing a university module on vehicle dynamics and wish to clarify/enhance my understanding of vehicle handling and the effects of weight transfer. Here are a points based some past exam questions and my answers, if anyone can spot a mistake or would like to add anything this would be appreciated! Q: A front wheel drive car is set up for mild oversteer, explain the effects of: Increasing the mass at the front. increasing the mass at the front will move the centre of gravity towards the front of the vehicle and increase the load placed onto the front axle. This will result in an increased weight transfer (WT) at the front of the vehicle and therefore increase front lateral acceleration (LA) and decreased rear lateral acceleration. This increase in front LA will cause an increase in the front tyre slip angle relative to the rear, which will reduce the oversteer, possibly causing mild oversteer. Q: A front wheel drive car is set up for mild oversteer, explain the effects of: an increase in acceleration through an increase in engine torque An increase in engine torque will cause the COG to move towards the rear of the vehicle, causing an increase on the load of the rear axle and a decrease at the front axle. This will cause 2 things: firstly, the WT at the rear will be increased, causing a larger LA at the rear of the vehicle, and vice versa at the front. This will result in an increase in oversteer. Secondly, as the effective weight over the front axle is reduced the front tyres will experience less grip while the car is accelerating. This will mean that the front tyres' slip angle will increase. Under heavy acceleration the majority of the tyres grip will be used on forward motion, and so less grip is available for cornering, which can result in understeer. Q: A front wheel drive car is set up for mild oversteer, explain the effects of: changing the old worn tyres for new. if the old tyres are changed then the tyres will have relatively more grip available to them, so for any given level of acceleration there will be more grip available for turning and the car will tend to oversteer more. NB feel as though I'm missing something here, doesnt feel like enough for the marks available! Q: A front wheel drive car is set up for mild oversteer, explain the effects of: changing the front suspension geometry so that the tyres lean into the bend. Changing the geometry such that the front wheels lean into a corner will result in an increase in oversteer as the tyres will generate an increased force into the bend, increasing the body roll of the vehicle and therefore increasing the weight transfer. The camber will also increase the effective grip of the tyre due to the contact patch area being increased, also causing an increase in oversteer Q: A front wheel drive car is set up for mild oversteer, explain the effects of: moving the drive to the rear wheels this would result in moving the COG towards the rear of the vehicle, which will cause an increase in the rear weight transfer (and reduction in the front). Also, the effective load over the front axle will be reduced, and therefore the grip of the front tyres will suffer. These 2 factors will contribute to changing the steady state handling characteristic to understeer, especially at high levels of acceleration. Q: A front wheel drive car is set up for mild oversteer, explain the effects of: an aero wing increasing downforce at the rear The rear wing will increase the load on the rear axle, increasing the grip available to the rear tyres. This will cause a decrease in the rear tyre slip angle, and so will reduce the oversteer experienced by the driver. This effect will only be noticeable at speed, as the force produced by the wing is proportional to speed, so at low speed the effect will be negligible. Q: A front wheel drive car is set up for mild oversteer, explain the effects of: reducing the front suspension damping unsure, some help would be appreciated! Many thanks for any responses!