I run 3s in my RC8 with the 1512 1.5d. Works perfectly and still blows the wheels off the nitros. When I run the 4s I have to turn my radio throttle EPA way down as it is too much power for the indoor track I run at even though the track is pretty large. I will see how the 3s and 4s fair on the outdoor track which is huge, but I still think 3s is going to be all I need. The other thing to consider, is that it is harder to run smaller pinions with the RC8. A lot of the guys running 4s are using 9 and 10 tooth pinions. I think the smallest you can go with the RCPD kit is 12 and 15 with the rc-monster one.

I use a maxamps 3s 8000 and get close to 30 minutes out of it. In fact, I like it so much I am going to pick up a 3s 6000 pack as well. My batteries are just warm, maybe 90-100 degrees. The

The 1512 1.5d is a brutally fast motor. With the stock 16/44 gearing in the rc8 you will be hitting about 48mph on 3s. On 4s you are pushing around 63 mph.

A few other people are experimenting with 3s combinations, particularly using the 1509 motors. The 1512 is a very strong motor, almost too strong for a buggy.