How big of diffrance do they make on esc and motor temps..
Say it.s 106d running on blacktop compared to an 75/80d indoor track... im i going to see a big change in temps?

Yes, you will run much hotter, in all probability, even hotter than just the difference in ambient temp. YMMV.

Thanks Mark.. I was pretty sure I had the my cars properly geared.. but it has been face melting hot here in AZ.. and i have been testing outside..

Yep. Ambient has a HUGE impact.

Just temped the blacktop 150dg I guess that could be another factor

That's what I meant but didn't spell out.