I just purchased this 810 and was out and about. I had been driving for about 15 minutes and I pulled up to an intersection and it stalled. I could not get it started again for about an hour, hour and a half, but it did start. Again I drive for about 15 minutes and it stalled again and it took about the same amount of time to get it started again. Anybody have any similar problems??

Almost sounds to me like a vapor lock condition...

Make sure the fuel lines are well-protected from the heat.

Definitely need more info on the car - stock or modded?

My 810 is completely stock. with 137,000 miles on it. Its seems like as soon as it reaches optimum engine temperature it doesn't just stall, it dies. Today I started it and let it run and about 15 minutes it did it again. The weird thing is the night I picked it up I drove it 20 miles without a hitch.

you need to find out what you aren't getting when ti dies, sometimes the fuel pumps will kind of cook themselves, it's external and mounted to the body in front of the tank, next time it dies reach under and grab it, if it's hot it's overheated and needs to be replaced I've seen this happen a few times now, another possibulity the ignitor and ro coil could be bad, I'm not sure which system they used on the 810's but I'd check the pump first and if thats not lit see if your getting spark

Check the connection at your temperature sensor. If the connection is okay then replace the sensor.