I'm telling you guys, the truck is running different now with the modded Quark... I forgot how smooth it was before I killed my last one. I can't really explain it, but I am loving it... I think it's more proportional as well.
I was out earlier and had the eagletree plugged in, I had the thermal probe mounted inside the 1512 Neu for temps, and after 10 minutes running in 15C (60F), the motor was at 130F (using live mode in eagletree software.) So I guess it's not that hot, but it was cool out, so when running at the track, it might be 30C(86F) this weekend, so you can add 25*F to that. That's ~155F, now I remember when I had my IR temp gun, that after a full run on 7s2p, the motor was usually between 155F and 165F on a hot day.
I think I should be fine then for this weekend races.