Talking purely in a simulator/check sense, some regulatory requirements come into play as some bodies (as the examination phase) give e-inop accel tolerances of -0/+100 i.e. its an F if you accel more than 100' abv your e-inop accel alt.
Notwithstanding that, the 320 is no scorcher e-inop so if the engine went bang at V1 chances are you have it secured in the 1-2 min it takes to go from 400' to 1500'.