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-   -   2wd touring car + super tall gearing = what motor? (https://www.rc-monster.com/forum/showthread.php?t=8171)

10kman 10.18.2007 07:56 AM

2wd touring car + super tall gearing = what motor?
 
So I have my top speed touring car project underway, and actually got one of the harder things figured out already, but now am torn with a motor/esc choice. Usually I'm having the opposite problem.

My problem is that I have it geared crazy high final gear ratio, 1.67:1. Even on a light touring car, that is still pretty tall.

So I can't decide on a motor for this. I'd like to use a small size, like the Neu 1509 2400 k/v in the RCM store, but wonder if I need to go up to the 1512 series, for a bit more torque.

I want to use a Neu motor for sure. My Kv rating should stay around the 2000 mark (ideas here too).

I was actually thinking of using a Mamba Max 4600 setup, but am not sure that it can handle that kind of gearing without heating up (kv high).

Throw me some ideas on this gloomy Thursday.......

-10k

jokerjustin 10.18.2007 09:58 AM

id go with the mamba and try and gear down just a bit. the extra kv will make up for the gearing

BrianG 10.18.2007 12:12 PM

Or go with a smaller current MGM, run it at high voltage (6s) and get a motor with around 2000kv. The Neus don't mind the higher rpms and the high voltage on a cooler motor will keep the current down, which is better for the ESC and smaller battery packs.

lincpimp 10.18.2007 01:03 PM

Don't waste your time on the mm 4600 motor, it will not pul that gearing, or anywhere near that gearing. I would say to go with what brian siad, 2000kv and 6s lipo. I have a tt-01 running a 7000kv motor on 3s lipo and get around 80mph, but it is only good for quick runs cause of temps.


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