Sorry for the repost, I was trying to see if I could change the thread title but accidentally deleted the thread instead.
We were testing our cimulators earlier on our shooter axels and felt that they were getting uncomforably hot and after a few minutes there was smoke coming from the rs550's!

So we decided to modify the
cimulator to allow for airflow into the front vent holes on the rs550s to help keep them cool. We milled some .1 deep slots into the
cimulator around where the rs550s are mounted to uncover the front holes so they could get some airflow.
Here is the unmodified part:
Here is the modified part:
The result is that the rs550s and the transmissions now stay much cooler then before and we can now run them at full speed and not worry about them getting too hot (at least for the length of a match). These wern't that hard to add and i'm not really sure why they don't come from banebots like this.
Here is a video of one of the modified cimulator's spinning up one of our shooter axels:
http://www.youtube.com/watch?v=YtiK87pE_9U
We are also mounting a fan above the cooling slots to help with airflow.