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Abstract. The aim of this research is to know the calculation of resin requirements which is used, the relative velocity of resin and filling time in body construction process of electric prototype vehicle which used carbon fibre material using vacuum infusion method. In making this vehicle body is using carbon fibre in order to have light in weight, strong and safe to fullfil the regulation or rule Shell Eco-Marathon (SEM).This light in weight vehicle is to increase power to weight ratio. So, it can be increase the efficiency of the fuel. The body of this vehicle has been included in Shell Eco-Marathon Asia which held in Singapore 2017. Based on the ideal calculation result resin in electric prototype that used carbon fibre using vacuum infusion method has obtained as much resin value as needed (RC) 3.83535 Kg, the relative velocity of resin (V) 0,005 m2/s,and filling time (t) for about 10,4 minutes and total weight body is 8 Kg.