Wheels sparks only when car moves

[dv2000]

Hi,
I was able to create wheel sparks using birth intersection but how can I generate sparks only when a  car reaches a certain speed or starts moving . When car stops I want no sparks to be generated Thank you

[tyFlow]

You can adjust the min relative velocity setting in the Birth Intersections operator, to control how fast intersecting faces must be moving, relative to each other, in order to generate particles.

[dv2000]

You can adjust the min relative velocity setting in the Birth Intersections operator, to control how fast intersecting faces must be moving, relative to each other, in order to generate particles.

Thank you! It was right there