To make the seedless passion fruit pulp, slice the passion fruits in half and spoon the contents into a fine mesh strainer set over a bowl. Use the back of a spoon to press the juice and pulp through the sieve, discarding the seeds.
In a large mixing bowl, beat the cream cheese and sugar together until smooth and fluffy.
Add the vanilla extract and mix well.
Incorporate the eggs one at a time, beating thoroughly after each addition.
Blend in the sour cream and heavy cream until the mixture is completely smooth.
Gently fold in the strained passion fruit pulp until evenly mixed throughout.
Pour the filling over the cooled crust, smoothing the surface with a spatula.
Bake at 325°F (160°C) for approximately 60 minutes, or until the edges are set but the center still has a slight jiggle.
Turn the oven off, crack the door open, and leave the cheesecake inside to cool for 1 hour.
Afterward, remove the cheesecake and allow it to cool to room temperature, then refrigerate for at least 4 hours or overnight to fully set.