[BP-Revo]

I've always been a pretty big advocate of the 4.5 system. I especially liked the smooth startup and high revving design of it. High rev is what you need in racing. It was one of the few systems that would have a very linear acceleration curve from a dead stop to the top, and even keep pulling into the "over-rev."


I had the original HV4400 in an E-Maxx for a while, and it was very reliable. Power seemed pretty significant at the time (a stock chassis E-Maxx isn't exactly a stable platform).

When I got my G2R I first threw in a HV6.5. Was very powerful and fast, and more than enough for the small track I was running on (small in relative to my G2R, at least). When I picked up some 8000mah Lipo's it really brought it to life. Throttle response was very very snappy. Somotimes it was hard to believe it was 'just' a 380 rotor. I did continuous ~40 minute runs at race pace and the system didn't choke one bit. ESC ran a good 120, motor 95. The one thing I wished it has was more top speed. I knew once I hit a bigger, MT sized track that I would need more top speed.


When I got my 4.5, I was even more happy. It ran like a 6.5 with an extra 30% more top end. Pretty much just what I wanted (I could have asked for maybe, 5 more mph than I was getting, but I was content). However, the system fried on me when I was just driving around outside my house (not even race pace!).

Many others that have the HV4.5 and run Lipo have fried theirs as well. I have come to my personal conclusion that the HV ESC, which was released with the original 4400, is just not up to the task of the newer, more powerful HV4.5.

So, it is my suggestion, and biggest hopes, that you guys will "beef up" the HV ESC design if you decide to keep the HV4.5 as a system, because when used with Lipo its simply too much.

Second, I also greatly hope you guys increase the rotor size. A high revving 380 sized rotor may be plenty (and sometimes too much) for racing most 1/10's, but in 1/8th its just not enough. If not a full sized 540 rotor, maybe at least go to a 480 or something near 540. However, I would still like to see you guys keep the high-revving characteristics that most of your motor systems have.