I was adventuring into the world of 12th scale and was looking for an esc. My question is i see a lot of 1s specific esc's on the market but i also see LiFe batteries that are intended for the reciever to power the servo because 2s-3s specific esc's arent capable of putting out the recommended settings for a servo.. how do i go about making a 2s esc compatable with a 1s with voltage cutoff and a life battery? Will it be as good as a 1s specific esc thats intended for 12th scale? Thanks

Well, honestly, you don't really need an LiFe battery for the electronics(I personally only use them in my transmitter), when using a 2s ESC all you need is something like this: http://www.hobbywingdirect.com/produ...-dc-dc-booster . But unless you're running in extreme conditions with the hottest motors, you don't really need to go that route, a good 1S speed control(like this one: http://www.hobbywingdirect.com/produ...0a-1s-v3-1-blk )will do the job just fine, no difference in on-track performance, except in the most extreme circumstances. As an example, at the IFMAR On Road Worlds a few weeks ago, those guys were using the 1S ESC's at first, but they found that something about the track, the conditions & the motors they were using were causing some overheating issues, so most of them switched to a 2S speed control with an external booster. But the rest of the time, they typically use the 1S ESC's. I also use them in mine with a 17.5 motor(I have the HobbyWing V3.1 1S myself), tried it a week & a half ago for the first time(I'd been out of 1/12 scale cars for over 10 years, when we were still using brushed motors & 4-cell NiMh batteries), & I'm really happy with how it's running. I think for most of us mortals, a good 1S ESC will be all we need....

Thanks that really helped a lot!

Thank you for the info. I too am re entering. In researching the 1S ESC/Motor world. I think I got the ESC part. I too have looked at the Hobbywing ESC.

My question is the motors, I see only Trinity offers "1S" motors. The others don't seem to call them out. Is there anything to the 1S motors for 1/12 pan cars.

Well, the difference is in the stator, the windings. The stator segments in those motors are shorter, I believe, so they're also lighter, which can allow the motor to develop more top end. But they also tend to sacrifice torque to get that, so there is a trade-off. In general, the 1S motors(also known as short stack motors) have less low end punch, but make better power at high rpm, while the regular stack motors make better low end torque, but sometimes lack ultimate top end. Overall, they really don't apply solely to 1/12 scale cars, though those cars might be best able to take advantage of them(due to their MUCH lighter weight, compared to other classes of car, like off road buggies or 1/10 scale touring cars, for example). I'd say that if you race on long, high speed tracks, then the 1S motors might be worth trying, but if your track is short, or very technical & tight, then you might actually be better off with a standard stack motor. My local track I think is a good example, it may be possible to make a 1S motor work well here, but I suspect the rollout needed to make it work is EXTREMELY tight, & hard to find, while the broader power of regular motors seem MUCH easier to gear right(which is why I'm currently using regular stack motors in my 1/12 scale)....