High temp problems - Hot Bodies D8

[jnev]

Not sure what is going on here with my Hot Bodies D8 buggy. I am running a very conservative set up I think - Mamba Monster, Neu 1512/3D/D (1700KV), Neu 4300mah 25c 5s lipo geared 18/48. Remember the D8 has truggy differential ratios. It is geared for between 36 and 37mph...

The high temp problems have happened before on previous runs with this buggy, but I will use my last run (yesterday) as an example. It was simply a big grass field with a small dirt hill on the side of it. After about 25 minutes of running, the motor is at 190, ESC at 160 and the battery at 125*F (which I am most worried about). Now I could understand if only one component was getting hot, but everything is hot. I also checked the drivetrain for binding, and everything is very smooth. Even with the motor installed, I can push the car by hand and it rolls freely.

I haven't gotten a chance to check the settings on the ESC, but I can't imagine them causing such huge difference in temperature. I am also thinking it may be the ESC sitting so close to the battery that is causing the battery to heat up so much, but I wouldn't expect the ESC to heat up that much in the first place... or at least it never did in my past cars.

Any ideas are appreciated. Thanks in advance!

Edit: I checked the ESC setting and they are all very conservative. Start power on low, timing on 5, punch control on 0% (ran fine like this on my other cars), and LVC at 3.1 volts per cell.

Oh, and here is my current setup (minus a couple upgrades):