Originally Posted by
UN4RACING
I didn't detect any ill effect in any performance. As far as down force. I did get 20+ degree heat decrease and didn't spend a dime. I don't think the performance was decreased at all. I run a 10.5 and didn't need to cool it. Tried it mainly just to see if it helped any and it did big time. Both motor temp and ESC temp. 6.5 I think a fan would be a good idea but I would add in the vent cuts just to help. It worked and helped a lot.
I ran a 5.5 on RS Pro and had to use an ESC fan and remove the front hole in the body on the ESC side. I saw very litttle temp change until I remoed a section in the rear vertical portion of the body. Air needed to get in and out! Now I run the Orion R10 ESC and a Orion Vortex 7.5 and it needs neither a fan or vents in the body.