ORIGINAL: nitrosportsandrunner
ORIGINAL: courtneylynn
I am trying to hit higher and higher speeds on the street using an RC8.2E. Currently I have the RTR version with Tekin RX8, on 5s lipo, and I am moving to a 6S pack.
Since the voltage and amperage drop during a speed run, Ithought about something. What if I added a small 2S pack in a place Ihave found it to fit, connected it by some type of relay, and when the vehicle reached top speed, Icould use the 3rd channel on my M11 tx to activate the voltage in the boost pack, which would only be used for 2-4 speed runs as to not deplete the pack.
Is this possible to do? Say with a pair of large capacitors between the two voltage sources?
The goal here is for a nitrous/turbo effect on the car. The car doesn't need the weight of a big block engine (8S or [2x 4S]) pack weight, the main pack is still decently large, the small pack doesn't add much weight, and it dumps itself quickly in contribution to the top speed of the short run. I got the buggy cheap and track racing is not my thing yet, so Iwent the max speed route for fun.
are you trying to figure out a way to add the 2s lipo power threw the ESC....or direct to the motor?
Direct to the motor would be impossible due to the ESC programming and timing of a brushless motor. So Iam basically just trying to trick the ESC into taking in more voltage/amps during a full-throttle speed run. The ESCs voltage detection would not be in effect on the maximum end Idon't believe while under full power delivery. So Ithink it could be tricked by a small "boost" of 1S or maybe even 2S that only initiates during the maximum throttle value range say after 4 seconds of full throttle, programming would throw in the smaller pack, and cut it when throttle dropped. My only other option is to run a 4S pack in the car, and a duplicate cell type 2S pack mounted down under the rear custom wing that we just made from 4 layers of carbon fiber. This would be really awkward as you could see two cells mounted back there, and might throw the balance of the car all aroundIdon't know, but it would be an option for a speed queen.
