yea sure man, what do u need? all you have to do is this: to add acceleration to a unit you do in custom script "call AddUnitAcceleration(udg_NAME)" and to remove you do "call RemoveUnitAcceleration(udg_NAME)"
Name is the name of your unit variable, if you know some jass it would be much easier tho, anyways yea man pm me about how i need to help you
glad to help mate