1920 overworked?
 

I am thinking about putting my 1920\7 into a CRT .5 with a MM and 2 2s2p 6000 mah's ran in series for speed or Parallel for run time. Is that too much battery for the 1920 if its ran in series? If I update to the MMM someday I will need 2 more batteries so I am thinking of using what I have for a CRT .5. Any thoughts?

One of those batteries is as big as I would go into a CRT.5. You don't want it to be too heavy or it will drive like crap and break easily. 4S 6000mah is bigger than some put in 1/8th scales which are twice the size as the .5.

I have a 1920/10 (3135kv) on mine on 3S and I love it. Small but powerful and stays cool no matter the gearing. I've ran mashers on it geared 14/46 (at least equiv to a 18/46 gearing on stock tires) and it ran cool. On 13/46 on mashers it hit a top spd of 46 on radar. I'm able to backflip the truck pretty easily if I hammer it at spd, but not so much TQ to make it too easy and undriveable.

The only thing is I am drawing a good deal of amps. ~75A on the higher gearing. The 7 turn will draw more if geared aggressively. Hopefully you have a hi-amp version. If not I would watch the gearing or considering rewiring to delta to give ~2800 kv and think about smaller batts on 4S or even 3S for very track worthy spds.

I have to agree that lighter is better with the crt.5. I run the maxamps 2S 4200s and that is as big of a batt as I would go. I also run a S can sized motor to further keep the weight down. Not only does the car handle better when it is lighter it is also a lot more durable. When possible I even run the stock wheels instead of 2.2 truck wheels. The truck wheels lead to more broken parts.

Thanks. Just thinking about stuff at the moment. The batteries and MM are helping a 1950 puch a Revo around at the moment. I just wanted to make sure a 1920 would be good for a CRT. Thanks.