from normal speed to slow motion to normal speed again

[mugen]

Hi

I am quite new to realflow and I am wondering what is the best way to achieve the following:

I have a car driving on a road with water
splashes come from the wheels when i goes through the puddles
from frame 1 to frame 250 the animation goes normal speed
from 250 to 275, the animation slows down till it completely freezes (there is still camera movement)
from 275 to 525, the animation is still frozen
from 525 to the end (frame 1000 approx), animation goes back to normal speed

I am wondering how to deal with those different FPS
All the more that from 250 to 275 the FPS is not constant, animation is slowing down

My first thought was to animate the car and wheels in slow motion in maya from frame 1 to the end
Then simulate at high FPS (something like 250) the entire simulation (1 to 1000) and retime the normal speed parts by reading only 1 image out of 10
But that's a lot of data for just a really small part (25 frames) needing slow motion

Second thought was to animate the car and wheels at normal speed in maya from frame 1 to the end
And then simulate in real flow with different FPS
But I have no idea how to set this up
Especially because the FPS is not constant, I actually have to slow down till complete freezing

Is this possible to keyframe the FPS value in Realflow?
How would you setup such a scene?

Many thanks for your help!

[bitSeq]

The best way to do this would be to simulate your scene at the normal speed and then once the simulation is run through us the Retimer tool in RF to retime and slow down the simulation where needed, it will generate a new particle cache and also new sd animation files based on your settings, you can even use a preview of your simulation to test out the retime settings before you go and build all your new caches.

[mugen]

Awesome, it looks like it will do the job perfectly!
thank you very much for that
cheers!